[Lift] Re: Using Roles and LIftRules.authentication
On Sep 8, 1:18 am, glenn gl...@exmbly.com wrote:
Marius,
Please bear with me. I'm a little slow in following the logic here.
Don't worry glen.
I understand I can protect the resource as you suggest from all
but users with admin roles, using the LocParam,
HttpAuthProtected(() = Full(AuthRole(admin) .
Now, when I click on the link, if no user is logged in, the system
asks for a username and password to connect, but that's a user
on the host. not an application user.
Not necessarily. It is any type of user. In your authentication
function you can go in DB and validate the receiving credentials as
application user.
Somewhere, I need to assign the
currently logged in user the AuthRole(admin) needed to access
the resource.
Correct. And you dothis by setting userRoles RequestVar.
Seems to me I need code like this to run someplace:
def authorize(roleName:String): Box[Role] = {
object userRoles extends RequestVar[Role](null)
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
println(John is authenticated!)
userRoles(_root_.net.liftweb.http.auth.AuthRole
(roleName))
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case false = Empty
}
}
Can't be in Boot,
No you do not. Lift takes care of the roles matching for you. You
don't need to manually test if a user is-an admin or some other role
in order to access that resource. Please keep in mind that is just for
accessing resources (URI-s) if you need to do more complex logic in
your code and see if the user is an admin or having some other Role
that you'd probably need to save the Role into a SessionVar or into
your User object.
All I want here is to explain how HTTP based authentication and roles
based authorization works. I am definitely not claiming that this is
enough for all applications as currently we don't have HTTP based
authentication with forms for example ... but I think we should add
that as well.
Glenn
On Sep 7, 1:36 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 7, 10:53 pm, glenn gl...@exmbly.com wrote:
Marius,
In practical terms, if I am already using an If LocParam, as in the
following:
If(() = User.isa_?(admin), S.?(not_authorized))
what does adding
HttpAuthProtected(() = User.authorize(admin)) to the Loc do?
It sais that this Loc is protected by the returned Role. Thus to
access this after passing the authentication the Role specified in the
authentication function (by setting userRoles) must be the same as or
a child of the Role the is protecting the Loc.
Here, I've had to define User.authorize to make things work, as:
def authorize(roleName:String): Box[Role] = {
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.httpAuthProtectedResource.append {
case (ParsePath(listContents :: _, _, _, _)) = Full
(AuthRole(admin))
}
Why do you need to use httpAuthProtectedResource if you' using
HttpAuthProtected LocParam ?
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
AuthRole(roleName)
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case false = Empty
}
Rather verbose, don't you think.
Your code is verbose but I don't see the justification for this
verbosity:
LiftRules.authentication = HttpBasicAuthentication(lift) {
case (username, password, req) = {
// Do you authentication in DB or whatever and you
determined that this is an admin user
userRoles(AuthRole(admin)) // userRoles needs to be
set. It is a RquestVar.
true
}
In Boot you have:
Menu(Loc(listContents, List(listContents), listContents,
HttpAuthProtected(() = Full(AuthRole(admin)
When you use HttpAuthProtected LocParam Lift appends a function to
LiftRules.httpAuthProtectedResource so you don't need to do it
manually.
This authorixation scheme is only about protecting resource by roles
and you do this almost declaratively and for authentication I thing
the things are pretty straight forward. One a user is
[Lift] Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
Hi, I've noticed that some special char xml tags are being interpreted by lift rather than passing through to the browser. source code in my template: div amp; copy; quot; raquo; lt; gt; /div result from curl http://localhost:8080/ div amp; © quot; » lt; gt; /div The rendered characters are problematic in IE7. A fix or workaround would be much appreciated. Thanks, - Jon --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Crazy idea for lift's mega proto user: admin panel.
Nice thoughts but personally I don't think this should be part of Lift core framework. However an admin panel could be provided via a lift widget and would be pretty interesting thing to have. Br's, Marius On Sep 8, 2:16 am, DFectuoso santiago1...@gmail.com wrote: I was thinking about how wonderful it is to get a login/register/ forgotPassword functionality with mega proto user and how it could become even better with a good tool for creating an admin section. I'm just adding the idea here so maybe if other people find value it could be considered for development(or probably it already is, i don't know). Adding an admin panel to mega proto user where the moderators/admins could change some options(like the way a user is validated, if gzip is enabled, etc) would be great for the end users of our apps, since it would be easier to change and maintain the site. Being a administrator at a Invision Power Board forum and having a couple of wordpress blogs, i see a lot of potential on this as a admin/ dev tool! Listing some of the things that i can imagine in this panel are: -phpMyAdmin-type of DB admin(browse your data easily, remove/change/ add stuff to it without having to create a CRUD for each thing) -execute queries -List the actor(and comet actors) with possibility to kill/reset them -Memory use analysis. -Statistics of use(hits, referrals, etc) -Options (any object/class/trait could have a val foo = adminPanel.option(category,optionName,description,defaultValue, otherValues[]) and be included in this place, of course the categories could create different menus. -User management(ban, authorize, give admin-rights). -Simple to-do list that all admins can edit -Log of errors/warnings/exceptions -Css editor -Easy-logo changer -File Manager(upload your images and stuff here) -String editor (you can change any default string from the megaprotouser forms and the index?) Also, a very polemic(and i think bad idea, but its common to see this in admin panels): -Installable plug-ins for this panel I know this seems like one step away from being a full blown CMS, forum, blog, etc. But if its extensible while we are building an app, it will be very useful for the different moments of development and use. Of course i don't expect any of this to be done right now, i understand there are a couple of integrations and bigger things going on but i really wanted to brainstorm on this with you guys! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: rewrite problem
That's because the url post/show is being intercepted by the same
rewrite rule that matches post/id urls. To get around this, try
adding an if statement to your rewrite rule:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
if (id != show) =
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
Hope this helps!
~Xavi
On Tue, Sep 8, 2009 at 12:12 AM, night_stalkerusur...@gmail.com wrote:
I want to make RESTful urls (not REST API), for example:
/post/123 is mapped to post/show.html with param id=123
but the following rewrite rule seems recursive
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
}
and loops forever ...
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[Lift] Re: solution to jetty:run locks files on windows problem
On Mon, Sep 7, 2009 at 3:05 PM, Timothy Perrett timo...@getintheloop.euwrote: Thanks Jon, thats super. Super +1 Cheers, Tim On Sep 7, 7:25 pm, jon jonhoff...@gmail.com wrote: Done: http://wiki.github.com/dpp/liftweb/how-to-fix-file-locking-problem-wi... On Sep 7, 1:49 pm, Timothy Perrett timo...@getintheloop.eu wrote: Jon, good stuff - perhaps write this up on the wiki: http://wiki.github.com/dpp/liftweb Cheers, Tim On Sep 7, 6:09 pm, jon jonhoff...@gmail.com wrote: Hi all, If you happen to be developing under windows you will notice that mvn jetty:run locks files and prevents editing while the server is running. Super annoying. The problem is that jetty memory maps files by default and windows locks memory mapped files. The solution is to turn off the mapped files switch in jetty. Instructions are here: When using jetty:run, CSS and JavaScript files are locked - how can I fix this?http://appfuse.org/display/APF/FAQ -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
On Mon, Sep 7, 2009 at 11:38 PM, jon jonhoff...@gmail.com wrote: Hi, I've noticed that some special char xml tags are being interpreted by lift rather than passing through to the browser. source code in my template: div amp; copy; quot; raquo; lt; gt; /div result from curl http://localhost:8080/ div amp; © quot; » lt; gt; /div The rendered characters are problematic in IE7. Why? A fix or workaround would be much appreciated. The raw XHTML is valid. Lift is yielding non-ASCII characters, but they are UTF-8 encoded and should be correctly rendered on all browsers. I have never seen a problem with IE6 or IE7 (I have not tested in IE8) Thanks, - Jon -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Where did AnyVar go ?
Sorry. I did an end of friday commit and forgot to add some untracked files. I moved a bunch of stuff from http to util so that that stuff could be used more broadly. If I've got bandwidth today, I'll write up the changes and how they can help in a variety of situations. On Mon, Sep 7, 2009 at 9:44 AM, Ross Mellgren dri...@gmail.com wrote: http://github.com/dpp/liftweb/commit/4dce48dfe938b92ae2ed50445dab1f4c2d104a4f Looks like DPP removed it, and based on the surrounding commit, maybe the intention was to put it in util somewhere, though the commit did not add it back anywhere. -Ross On Sep 7, 2009, at 9:21 AM, marius d. wrote: Same question for Injector, SimpleInjector etc. Br's, Marius On Sep 7, 4:08 pm, Marius marius.dan...@gmail.com wrote: Hi, I just did a pull and get a bunch of compile time errors obviously. Seems like someone kidnapped AnyVar? Br's, Marius -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: vs amp; within attributes in templates
On Mon, Sep 7, 2009 at 9:17 PM, Grant Wood smackt...@gmail.com wrote: Hello Lifters, If I create a template with the following: lift:surround with=page_master at=content a class=thickbox href=/media/?height=440width=640Foo/a lift:bind name=content / /lift:surround I will be served an empty page, containing none of my snippets, and throwing or logging no errors. By empty I mean, the page contains only the outermost xhtml which Lift wraps a page with (liftajax, xml declaration, etc.) but nothing from any of my own templates or snippets. Very odd. On a hunch, I escaped the to amp; and suddenly the page appeared fully rendered. i.e.: a class=thickbox href=/media/index.xml? height=440amp;width=640Foo/a My first concern is that I should not have had to escape the at all in an attribute. This is a valid character in any XML attribute. is not a valid character in an XML attribute. The character must be escaped as amp; Second, if there is some reasonable lift-specific reason that I need to escape in attributes, then shouldn't Lift decode each amp; back to inside attributes upon page rendering? ( and if that's the case, then couldn't that same test be used to prevent the need to escape the in the first place?) Lift yields valid XHTML to the browser. amp; is valid xhtml, a href=' http://something?height=440width=660' is *not* valid XHTML and will be rejected by your browser. I am using lift 1.1-SNAPSHOT Thanks for your comments. -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] setting user-agent header
Has anyone used dispatch from databinder.net? Its an http library in Scala. I do not know how to set the User-Agent header. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Using Roles and LIftRules.authentication
Marius,
With your help, I think I'm getting closer to understanding what is
needed
here.
One thing though, is that I believe I do need to manually check if the
user has the
appropriate role (in the DB) before I can set userRoles RequestVar.
See, in my application,
I have no way of knowing in advance if a logged-in user is authorized
to access
a particular resource. I'm trying to accomplish that programatically.
And, don't forget, roles
can be changed at any time in the application. In other words, I
can't just assume it in my
authentication function and make the assignment there.
Does that make sense? This is not to say that I can't work
tangentially to Http basic authentication
in Lift and create my own, just that I'm trying to incorporate the
work already done so I don't have to.
Glenn
On Sep 7, 11:24 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 8, 1:18 am, glenn gl...@exmbly.com wrote:
Marius,
Please bear with me. I'm a little slow in following the logic here.
Don't worry glen.
I understand I can protect the resource as you suggest from all
but users with admin roles, using the LocParam,
HttpAuthProtected(() = Full(AuthRole(admin) .
Now, when I click on the link, if no user is logged in, the system
asks for a username and password to connect, but that's a user
on the host. not an application user.
Not necessarily. It is any type of user. In your authentication
function you can go in DB and validate the receiving credentials as
application user.
Somewhere, I need to assign the
currently logged in user the AuthRole(admin) needed to access
the resource.
Correct. And you dothis by setting userRoles RequestVar.
Seems to me I need code like this to run someplace:
def authorize(roleName:String): Box[Role] = {
object userRoles extends RequestVar[Role](null)
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
println(John is authenticated!)
userRoles(_root_.net.liftweb.http.auth.AuthRole
(roleName))
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case false = Empty
}
}
Can't be in Boot,
No you do not. Lift takes care of the roles matching for you. You
don't need to manually test if a user is-an admin or some other role
in order to access that resource. Please keep in mind that is just for
accessing resources (URI-s) if you need to do more complex logic in
your code and see if the user is an admin or having some other Role
that you'd probably need to save the Role into a SessionVar or into
your User object.
All I want here is to explain how HTTP based authentication and roles
based authorization works. I am definitely not claiming that this is
enough for all applications as currently we don't have HTTP based
authentication with forms for example ... but I think we should add
that as well.
Glenn
On Sep 7, 1:36 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 7, 10:53 pm, glenn gl...@exmbly.com wrote:
Marius,
In practical terms, if I am already using an If LocParam, as in the
following:
If(() = User.isa_?(admin), S.?(not_authorized))
what does adding
HttpAuthProtected(() = User.authorize(admin)) to the Loc do?
It sais that this Loc is protected by the returned Role. Thus to
access this after passing the authentication the Role specified in the
authentication function (by setting userRoles) must be the same as or
a child of the Role the is protecting the Loc.
Here, I've had to define User.authorize to make things work, as:
def authorize(roleName:String): Box[Role] = {
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.httpAuthProtectedResource.append {
case (ParsePath(listContents :: _, _, _, _)) = Full
(AuthRole(admin))
}
Why do you need to use httpAuthProtectedResource if you' using
HttpAuthProtected LocParam ?
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
AuthRole(roleName)
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case
[Lift] Re: rewrite problem
Cool, thank you very much!
On Sep 8, 8:56 pm, Xavi Ramirez xavi@gmail.com wrote:
That's because the url post/show is being intercepted by the same
rewrite rule that matches post/id urls. To get around this, try
adding an if statement to your rewrite rule:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
if (id != show) =
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
Hope this helps!
~Xavi
On Tue, Sep 8, 2009 at 12:12 AM, night_stalkerusur...@gmail.com wrote:
I want to make RESTful urls (not REST API), for example:
/post/123 is mapped to post/show.html with param id=123
but the following rewrite rule seems recursive
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
}
and loops forever ...
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[Lift] setting user-agent header with Databinder
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try { block(res.getStatusLine.getStatusCode, res, ent) }
finally { ent foreach (_.consumeContent) }
}
/** Apply Response Handler if reponse code returns true from chk. */
def when[T](chk: Int = Boolean)(hand: Handler[T]) = x(hand.request)
{
case (code, res, ent) if chk(code) = hand.block(code, res, ent)
case (code, _, Some(ent)) = throw StatusCode(code,
EntityUtils.toString(ent, UTF_8))
case (code, _, _) = throw StatusCode(code, [no entity])
}
/** Apply a custom block in addition to predefined response Handler.
*/
def also[A,B](hand: Handler[B])(block: Handler.F[A]) =
x(hand.request) { (code, res, ent) = ( hand.block(code, res,
ent), block(code, res, ent) ) }
/** Apply handler block when response code is 200 - 204 */
def apply[T](hand: Handler[T]) = (this when {code = (200 to 204)
contains code})(hand)
}
/** Nil request, useful to kick off a descriptors that don't have a
factory. */
object /\ extends Request(None, None, Nil)
/* Factory for requests from a host */
object :/ {
def apply(hostname: String, port: Int): Request =
new Request(Some(new HttpHost(hostname, port)), None, Nil)
def apply(hostname: String): Request = new Request(Some(new HttpHost
(hostname)), None, Nil)
}
/** Factory for requests from a directory, prepends '/'. */
object / {
def apply(path: String) = /\ / path
}
object Request {
/** Request transformer */
type Xf = HttpRequestBase = HttpRequestBase
/** Updates the request URI with the given string-to-string
function. (mutates request) */
def uri_xf(sxf: String = String)(req: HttpRequestBase) = {
[Lift] Re: Using Roles and LIftRules.authentication
On Sep 8, 7:00 pm, glenn gl...@exmbly.com wrote:
Marius,
I guess there is little more to be said on this issue. Keep in mind
that
in many real-world applications, dynamically assigned user roles are a
requirement. And it's possible for users to have multiple roles, each
in a different role hierarchy, in the same application.
Well Lift Roles are build on hierarchical model.
Inevitably, I will have to implement my own, perhaps using
JaaS or one of its variants. If you have any thoughts on that issue,
I'd like to hear them.
I kind of doubt that JAAS will take you farther then Lift HTTP auth
support.
Thanks,
Glenn
On Sep 8, 8:40 am, marius d. marius.dan...@gmail.com wrote:
On Sep 8, 6:12 pm, glenn gl...@exmbly.com wrote:
Marius,
With your help, I think I'm getting closer to understanding what is
needed
here.
One thing though, is that I believe I do need to manually check if the
user has the
appropriate role (in the DB) before I can set userRoles RequestVar.
See, in my application,
I have no way of knowing in advance if a logged-in user is authorized
to access
a particular resource. I'm trying to accomplish that programatically.
Well if when authenticating a user (LiftRules.authentication) you
can't determine the Role, then this mechanism probably won't help you
and you need to build your own.
And, don't forget, roles
can be changed at any time in the application.
I assume that a super-admin user would be able to change roles for
other users right? ... If so you just need to update data in your DB
for say user X. So when User X authenticates you'll get the new role
assigned. But maybe this is not how your app is designed to work.
In other words, I
can't just assume it in my
authentication function and make the assignment there.
Does that make sense? This is not to say that I can't work
tangentially to Http basic authentication
in Lift and create my own, just that I'm trying to incorporate the
work already done so I don't have to.
Lift's HTTP authentication and authorization is built on very simple
principles such as:
1. In the authentication function you typically know the role for that
user.
2. Resources (URI's essentially) are protected by hierarchically
structured roles that are matched with the role determined by the
authentication function.
Glenn
On Sep 7, 11:24 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 8, 1:18 am, glenn gl...@exmbly.com wrote:
Marius,
Please bear with me. I'm a little slow in following the logic here.
Don't worry glen.
I understand I can protect the resource as you suggest from all
but users with admin roles, using the LocParam,
HttpAuthProtected(() = Full(AuthRole(admin) .
Now, when I click on the link, if no user is logged in, the system
asks for a username and password to connect, but that's a user
on the host. not an application user.
Not necessarily. It is any type of user. In your authentication
function you can go in DB and validate the receiving credentials as
application user.
Somewhere, I need to assign the
currently logged in user the AuthRole(admin) needed to access
the resource.
Correct. And you dothis by setting userRoles RequestVar.
Seems to me I need code like this to run someplace:
def authorize(roleName:String): Box[Role] = {
object userRoles extends RequestVar[Role](null)
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
println(John is authenticated!)
userRoles(_root_.net.liftweb.http.auth.AuthRole
(roleName))
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case false = Empty
}
}
Can't be in Boot,
No you do not. Lift takes care of the roles matching for you. You
don't need to manually test if a user is-an admin or some other role
in order to access that resource. Please keep in mind that is just for
accessing resources (URI-s) if you need to do more complex logic in
your code and see if the user is an admin or having some other Role
that you'd probably need to save the Role into a SessionVar or into
your User object.
All I want here is to explain how HTTP based authentication and roles
based authorization works. I am definitely not claiming that this is
enough for all applications as currently we
[Lift] Re: setting user-agent header with Databinder
Jack,
I'm not sure where N8han (the author of Databinder) hangs out, but it's not
on the Lift list. :-(
Sorry.
David
On Tue, Sep 8, 2009 at 8:58 AM, jack jack.wid...@gmail.com wrote:
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try { block(res.getStatusLine.getStatusCode, res, ent) }
finally { ent foreach (_.consumeContent) }
}
/** Apply Response Handler if reponse code returns true from chk. */
def when[T](chk: Int = Boolean)(hand: Handler[T]) = x(hand.request)
{
case (code, res, ent) if chk(code) = hand.block(code, res, ent)
case (code, _, Some(ent)) = throw StatusCode(code,
EntityUtils.toString(ent, UTF_8))
case (code, _, _) = throw StatusCode(code, [no entity])
}
/** Apply a custom block in addition to predefined response Handler.
*/
def also[A,B](hand: Handler[B])(block: Handler.F[A]) =
x(hand.request) { (code, res, ent) = ( hand.block(code, res,
ent), block(code, res, ent) ) }
/** Apply handler block when response code is 200 - 204 */
def apply[T](hand: Handler[T]) = (this when {code = (200 to 204)
contains code})(hand)
}
/** Nil request, useful to kick off a descriptors that don't have a
factory. */
object /\ extends Request(None, None, Nil)
/* Factory for requests from a host */
object :/ {
def apply(hostname: String, port: Int): Request =
new Request(Some(new HttpHost(hostname, port)), None, Nil)
def apply(hostname: String): Request = new Request(Some(new HttpHost
(hostname)), None, Nil)
}
/** Factory for requests from a directory, prepends '/'. */
object / {
def apply(path: String) = /\ / path
}
object Request {
/** Request transformer */
[Lift] Re: rewrite problem
Can't find
RewriteResponse.apply(List[String], Map[String, String], Boolean)
in 1.0 API, is it a new feature?
On Sep 8, 11:52 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
or:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)), *true*
)
}
The true parameter stops the rewriting process so you don't get the infinite
loop.
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[Lift] Lift WebServices
I'm trying to set up a simple web service using Lift v1.0. I've scoured across many examples but because of changes in the api's, none of them compile. I finally found an example of a dispatcher tha compiles but in the sample as in others the dispatcher is added in the boot method of the Boot class as follows: LiftRules.dispatch.prepend(RestApi.dispatch) This compiles fine however, upon startup I get the following stack: ERROR - Failed to Boot java.lang.IllegalStateException: Cannot modify after boot. at net.liftweb.http.RulesSeq$class.safe_$qmark(LiftRules.scala:885) at net.liftweb.http.RulesSeq$class.prepend(LiftRules.scala:892) at net.liftweb.http.RulesSeq$$anon$3.prepend(LiftRules.scala:872) at net.liftweb.http.LiftFilter.preBoot(LiftServlet.scala:581) at net.liftweb.http.LiftFilter.bootLift(LiftServlet.scala:572) at net.liftweb.http.LiftFilter.init(LiftServlet.scala:548) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java: 97) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:653) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1239) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 466) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart (Jetty6PluginWebAppContext.java:124) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart (ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.plugin.Jetty6PluginServer.start (Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty (AbstractJettyMojo.java:441) at org.mortbay.jetty.plugin.AbstractJettyMojo.execute (AbstractJettyMojo.java:383) at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute (AbstractJettyRunMojo.java:210) at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java: 184) at org.apache.maven.plugin.DefaultPluginManager.executeMojo (DefaultPluginManager.java:451) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals (DefaultLifecycleExecutor.java:558) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal (DefaultLifecycleExecutor.java:512) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal (DefaultLifecycleExecutor.java:482) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures (DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments (DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute (DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java: 315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java: 430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) 2009-09-07 11:57:17.823::INFO: Started selectchannelconnec...@0.0.0.0:8080 Any help would be greatly appreciated. Also, if anyone knows of where I can find a sample Lift / BlazeDS application that will actually compile using Lift 1.0, please let me know. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this
[Lift] Re: CRUDify
I've added a page with links to my posts http://wiki.github.com/dpp/liftweb/example-crudify-a-entity . I am just starting out with Lift and Scala but am happy to receive any comments. On Sep 8, 12:16 am, Randinn rand...@gmail.com wrote: I'll ask the author. On Sep 2, 3:49 am, David Pollak feeder.of.the.be...@gmail.com wrote: Good stuff! Care to add a wiki page http://wiki.github.com/dpp/liftwebthat points to these blog posts? On Tue, Sep 1, 2009 at 10:10 AM, Randinn rand...@gmail.com wrote: Here are a couple of good posts on seting up CRUDify, I thought initiates like myself might benefit. http://neuralmonkey.blogspot.com/search/label/lift -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Crazy idea for lift's mega proto user: admin panel.
Agreed - cant help but feel this is a little gimmicky and not really part of lifts core values; that said, as Marius points out this might work as a widget. Cheers, Tim On 8 Sep 2009, at 11:36, marius d. wrote: Nice thoughts but personally I don't think this should be part of Lift core framework. However an admin panel could be provided via a lift widget and would be pretty interesting thing to have. Br's, Marius On Sep 8, 2:16 am, DFectuoso santiago1...@gmail.com wrote: I was thinking about how wonderful it is to get a login/register/ forgotPassword functionality with mega proto user and how it could become even better with a good tool for creating an admin section. I'm just adding the idea here so maybe if other people find value it could be considered for development(or probably it already is, i don't know). Adding an admin panel to mega proto user where the moderators/admins could change some options(like the way a user is validated, if gzip is enabled, etc) would be great for the end users of our apps, since it would be easier to change and maintain the site. Being a administrator at a Invision Power Board forum and having a couple of wordpress blogs, i see a lot of potential on this as a admin/ dev tool! Listing some of the things that i can imagine in this panel are: -phpMyAdmin-type of DB admin(browse your data easily, remove/change/ add stuff to it without having to create a CRUD for each thing) -execute queries -List the actor(and comet actors) with possibility to kill/reset them -Memory use analysis. -Statistics of use(hits, referrals, etc) -Options (any object/class/trait could have a val foo = adminPanel.option(category,optionName,description,defaultValue, otherValues[]) and be included in this place, of course the categories could create different menus. -User management(ban, authorize, give admin-rights). -Simple to-do list that all admins can edit -Log of errors/warnings/exceptions -Css editor -Easy-logo changer -File Manager(upload your images and stuff here) -String editor (you can change any default string from the megaprotouser forms and the index?) Also, a very polemic(and i think bad idea, but its common to see this in admin panels): -Installable plug-ins for this panel I know this seems like one step away from being a full blown CMS, forum, blog, etc. But if its extensible while we are building an app, it will be very useful for the different moments of development and use. Of course i don't expect any of this to be done right now, i understand there are a couple of integrations and bigger things going on but i really wanted to brainstorm on this with you guys! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: setting user-agent header with Databinder
IMHO, you'd probably get better traction with such questions in a
wider audience on the main scala-user list over at EPFL...
Cheers, Tim
On 8 Sep 2009, at 17:26, Jack Widman wrote:
Right. I will try to keep to the topic :)
I actually found him and he quickly answered me.
On Tue, Sep 8, 2009 at 12:24 PM, David Pollak feeder.of.the.be...@gmail.com
wrote:
Jack,
I'm not sure where N8han (the author of Databinder) hangs out, but
it's not on the Lift list. :-(
Sorry.
David
On Tue, Sep 8, 2009 at 8:58 AM, jack jack.wid...@gmail.com wrote:
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try { block(res.getStatusLine.getStatusCode, res, ent) }
finally { ent foreach (_.consumeContent) }
}
/** Apply Response Handler if reponse code returns true from chk. */
def when[T](chk: Int = Boolean)(hand: Handler[T]) = x(hand.request)
{
case (code, res, ent) if chk(code) = hand.block(code, res, ent)
case (code, _, Some(ent)) = throw StatusCode(code,
EntityUtils.toString(ent, UTF_8))
case (code, _, _) = throw StatusCode(code, [no entity])
}
/** Apply a custom block in addition to predefined response Handler.
*/
def also[A,B](hand: Handler[B])(block: Handler.F[A]) =
x(hand.request) { (code, res, ent) = ( hand.block(code, res,
ent), block(code, res, ent) ) }
/** Apply handler block when response code is 200 - 204 */
def apply[T](hand: Handler[T]) = (this when {code = (200 to 204)
contains code})(hand)
}
/** Nil request, useful to kick off a descriptors that don't have a
factory. */
object /\ extends Request(None, None, Nil)
/* Factory for requests from a host */
object :/ {
[Lift] Re: Lift WebServices
Can you privately send me a zipped file containing your project (please remove the target directory before sending). I think there is something very wrong, but can't diagnose it from the stack trace. On Tue, Sep 8, 2009 at 9:43 AM, abruzzo java.peri...@gmail.com wrote: I'm trying to set up a simple web service using Lift v1.0. I've scoured across many examples but because of changes in the api's, none of them compile. I finally found an example of a dispatcher tha compiles but in the sample as in others the dispatcher is added in the boot method of the Boot class as follows: LiftRules.dispatch.prepend(RestApi.dispatch) This compiles fine however, upon startup I get the following stack: ERROR - Failed to Boot java.lang.IllegalStateException: Cannot modify after boot. at net.liftweb.http.RulesSeq$class.safe_$qmark(LiftRules.scala:885) at net.liftweb.http.RulesSeq$class.prepend(LiftRules.scala:892) at net.liftweb.http.RulesSeq$$anon$3.prepend(LiftRules.scala:872) at net.liftweb.http.LiftFilter.preBoot(LiftServlet.scala:581) at net.liftweb.http.LiftFilter.bootLift(LiftServlet.scala:572) at net.liftweb.http.LiftFilter.init(LiftServlet.scala:548) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java: 97) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:653) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1239) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 466) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart (Jetty6PluginWebAppContext.java:124) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart (ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.plugin.Jetty6PluginServer.start (Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty (AbstractJettyMojo.java:441) at org.mortbay.jetty.plugin.AbstractJettyMojo.execute (AbstractJettyMojo.java:383) at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute (AbstractJettyRunMojo.java:210) at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java: 184) at org.apache.maven.plugin.DefaultPluginManager.executeMojo (DefaultPluginManager.java:451) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals (DefaultLifecycleExecutor.java:558) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal (DefaultLifecycleExecutor.java:512) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal (DefaultLifecycleExecutor.java:482) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures (DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments (DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute (DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java: 315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java: 430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) 2009-09-07 11:57:17.823::INFO: Started selectchannelconnec...@0.0.0.0:8080 Any help would be greatly appreciated. Also, if anyone knows of where
[Lift] Re: rewrite problem
On Tue, Sep 8, 2009 at 9:41 AM, night_stalker usur...@gmail.com wrote:
Can't find
RewriteResponse.apply(List[String], Map[String, String], Boolean)
in 1.0 API, is it a new feature?
It's probably a new feature in 1.1 to address the issue that you identified.
I recommend running against 1.1-M4 or SNAPSHOT.
On Sep 8, 11:52 pm, David Pollak feeder.of.the.be...@gmail.com
wrote:
or:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)),
*true*
)
}
The true parameter stops the rewriting process so you don't get the
infinite
loop.
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
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[Lift] how do you set system properties in lift?
say I wanted to change the port / host that the Mailer uses. how would I go about that? thanks --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: rewrite problem
On Tue, Sep 8, 2009 at 6:40 AM, night_stalker usur...@gmail.com wrote:
Cool, thank you very much!
On Sep 8, 8:56 pm, Xavi Ramirez xavi@gmail.com wrote:
That's because the url post/show is being intercepted by the same
rewrite rule that matches post/id urls. To get around this, try
adding an if statement to your rewrite rule:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
if (id != show) =
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
or:
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)), *true*
)
}
The true parameter stops the rewriting process so you don't get the infinite
loop.
Hope this helps!
~Xavi
On Tue, Sep 8, 2009 at 12:12 AM, night_stalkerusur...@gmail.com wrote:
I want to make RESTful urls (not REST API), for example:
/post/123 is mapped to post/show.html with param id=123
but the following rewrite rule seems recursive
LiftRules.rewrite.append {
case RewriteRequest(ParsePath(List(post, id), _, _, _), _, _)
=
RewriteResponse(List(post,show), Map(id-urlDecode(id)))
}
and loops forever ...
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
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[Lift] Re: Hudson build down?
On Mon, Sep 7, 2009 at 11:22 AM, Timothy Perrett timo...@getintheloop.euwrote: OK, so its been running for a while now and it looks like its featuring that same file open problem as before Can one of the admins fix it? restarted. Also, if there are scala-tools.org related issues, please send them to ad...@scala-tools.org. Cheers, Tim On Sep 7, 6:54 pm, Timothy Perrett timo...@getintheloop.eu wrote: I've just triggered a manual build - so lets see if it works. Cheers, Tim On Sep 7, 9:19 am, Jeppe Nejsum Madsen je...@ingolfs.dk wrote: Hi, Seems like it's been 5 days without a build, but there has been plenty of action on github. But looking at the maven repo it looks like there has been a snapshot release on sep 7 Is this a manual build or is this no longer the build server for lift:http://hudson.scala-tools.org/job/Lift/ /Jeppe -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: setting user-agent header with Databinder
Right. I will try to keep to the topic :)
I actually found him and he quickly answered me.
On Tue, Sep 8, 2009 at 12:24 PM, David Pollak feeder.of.the.be...@gmail.com
wrote:
Jack,
I'm not sure where N8han (the author of Databinder) hangs out, but it's not
on the Lift list. :-(
Sorry.
David
On Tue, Sep 8, 2009 at 8:58 AM, jack jack.wid...@gmail.com wrote:
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try { block(res.getStatusLine.getStatusCode, res, ent) }
finally { ent foreach (_.consumeContent) }
}
/** Apply Response Handler if reponse code returns true from chk. */
def when[T](chk: Int = Boolean)(hand: Handler[T]) = x(hand.request)
{
case (code, res, ent) if chk(code) = hand.block(code, res, ent)
case (code, _, Some(ent)) = throw StatusCode(code,
EntityUtils.toString(ent, UTF_8))
case (code, _, _) = throw StatusCode(code, [no entity])
}
/** Apply a custom block in addition to predefined response Handler.
*/
def also[A,B](hand: Handler[B])(block: Handler.F[A]) =
x(hand.request) { (code, res, ent) = ( hand.block(code, res,
ent), block(code, res, ent) ) }
/** Apply handler block when response code is 200 - 204 */
def apply[T](hand: Handler[T]) = (this when {code = (200 to 204)
contains code})(hand)
}
/** Nil request, useful to kick off a descriptors that don't have a
factory. */
object /\ extends Request(None, None, Nil)
/* Factory for requests from a host */
object :/ {
def apply(hostname: String, port: Int): Request =
new Request(Some(new HttpHost(hostname, port)), None, Nil)
def apply(hostname: String): Request = new Request(Some(new HttpHost
[Lift] Re: Using Roles and LIftRules.authentication
On Sep 8, 6:12 pm, glenn gl...@exmbly.com wrote:
Marius,
With your help, I think I'm getting closer to understanding what is
needed
here.
One thing though, is that I believe I do need to manually check if the
user has the
appropriate role (in the DB) before I can set userRoles RequestVar.
See, in my application,
I have no way of knowing in advance if a logged-in user is authorized
to access
a particular resource. I'm trying to accomplish that programatically.
Well if when authenticating a user (LiftRules.authentication) you
can't determine the Role, then this mechanism probably won't help you
and you need to build your own.
And, don't forget, roles
can be changed at any time in the application.
I assume that a super-admin user would be able to change roles for
other users right? ... If so you just need to update data in your DB
for say user X. So when User X authenticates you'll get the new role
assigned. But maybe this is not how your app is designed to work.
In other words, I
can't just assume it in my
authentication function and make the assignment there.
Does that make sense? This is not to say that I can't work
tangentially to Http basic authentication
in Lift and create my own, just that I'm trying to incorporate the
work already done so I don't have to.
Lift's HTTP authentication and authorization is built on very simple
principles such as:
1. In the authentication function you typically know the role for that
user.
2. Resources (URI's essentially) are protected by hierarchically
structured roles that are matched with the role determined by the
authentication function.
Glenn
On Sep 7, 11:24 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 8, 1:18 am, glenn gl...@exmbly.com wrote:
Marius,
Please bear with me. I'm a little slow in following the logic here.
Don't worry glen.
I understand I can protect the resource as you suggest from all
but users with admin roles, using the LocParam,
HttpAuthProtected(() = Full(AuthRole(admin) .
Now, when I click on the link, if no user is logged in, the system
asks for a username and password to connect, but that's a user
on the host. not an application user.
Not necessarily. It is any type of user. In your authentication
function you can go in DB and validate the receiving credentials as
application user.
Somewhere, I need to assign the
currently logged in user the AuthRole(admin) needed to access
the resource.
Correct. And you dothis by setting userRoles RequestVar.
Seems to me I need code like this to run someplace:
def authorize(roleName:String): Box[Role] = {
object userRoles extends RequestVar[Role](null)
val credentials : (String,String) = User.currentUser match {
case Full(u) = (u.email.is, u.password.is)
case Empty = (null, null)
}
User.isa_?(roleName) match {
case true = {
LiftRules.authentication = HttpBasicAuthentication(lift)
{
case (credentials._1, credentials._2, req) =
println(John is authenticated!)
userRoles(_root_.net.liftweb.http.auth.AuthRole
(roleName))
true
}
Full(new _root_.net.liftweb.http.auth.Role{
def name = roleName})
}
case false = Empty
}
}
Can't be in Boot,
No you do not. Lift takes care of the roles matching for you. You
don't need to manually test if a user is-an admin or some other role
in order to access that resource. Please keep in mind that is just for
accessing resources (URI-s) if you need to do more complex logic in
your code and see if the user is an admin or having some other Role
that you'd probably need to save the Role into a SessionVar or into
your User object.
All I want here is to explain how HTTP based authentication and roles
based authorization works. I am definitely not claiming that this is
enough for all applications as currently we don't have HTTP based
authentication with forms for example ... but I think we should add
that as well.
Glenn
On Sep 7, 1:36 pm, marius d. marius.dan...@gmail.com wrote:
On Sep 7, 10:53 pm, glenn gl...@exmbly.com wrote:
Marius,
In practical terms, if I am already using an If LocParam, as in the
following:
If(() = User.isa_?(admin), S.?(not_authorized))
what does adding
HttpAuthProtected(() = User.authorize(admin)) to the Loc do?
It sais that this Loc is protected by the returned Role. Thus to
access this after passing the authentication the Role specified in the
authentication function (by setting userRoles) must be the same as or
a child of the Role the is protecting the Loc.
Here, I've had to define User.authorize to make things work, as:
def authorize(roleName:String): Box[Role] = {
[Lift] never mind. I contacted the author of Databinder. But thanks
setting user-agent header. My question is answered --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
Ah, IE7 seems to be confused about the character encoding of the page. When the encoding is set to Auto Select it chooses Western European (Windows) and the © displays as ©. If I turn off Auto Select and manually set to Unicode (UTF-8) it displays correctly. I have LiftRules.early.append(makeUtf8) in Boot. And the page includes ?xml version=1.0 encoding=UTF-8? Any ideas? Thanks, Jon On Sep 8, 9:26 am, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Sep 7, 2009 at 11:38 PM, jon jonhoff...@gmail.com wrote: Hi, I've noticed that some special char xml tags are being interpreted by lift rather than passing through to the browser. source code in my template: div amp; copy; quot; raquo; lt; gt; /div result from curlhttp://localhost:8080/ div amp; © quot; » lt; gt; /div The rendered characters are problematic in IE7. Why? A fix or workaround would be much appreciated. The raw XHTML is valid. Lift is yielding non-ASCII characters, but they are UTF-8 encoded and should be correctly rendered on all browsers. I have never seen a problem with IE6 or IE7 (I have not tested in IE8) Thanks, - Jon -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: how do you set system properties in lift?
You need to set system properties:
System.setProperty(mail.smtp.starttls.enable,true);
System.setProperty(mail.smtp.host, host)
System.setProperty(mail.smtp.port, 587)
System.setProperty(mail.smtp.auth, true)
Mailer.authenticator = Full(new Authenticator {
override def getPasswordAuthentication =
new PasswordAuthentication(user, password)
})
Tim
On Tue, Sep 8, 2009 at 12:03 PM, george geo...@mattandgeorge.com wrote:
say I wanted to change the port / host that the Mailer uses.
how would I go about that?
thanks
--~--~-~--~~~---~--~~
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[Lift] Re: Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
On Tue, Sep 8, 2009 at 10:37 AM, jon jonhoff...@gmail.com wrote: Ah, IE7 seems to be confused about the character encoding of the page. When the encoding is set to Auto Select it chooses Western European (Windows) and the © displays as ©. If I turn off Auto Select and manually set to Unicode (UTF-8) it displays correctly. I wonder if this is a header issue... I'll put this on my to do list to investigate. Although, I bet Tim has something to say about it. I have LiftRules.early.append(makeUtf8) in Boot. And the page includes ?xml version=1.0 encoding=UTF-8? Any ideas? Thanks, Jon On Sep 8, 9:26 am, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Sep 7, 2009 at 11:38 PM, jon jonhoff...@gmail.com wrote: Hi, I've noticed that some special char xml tags are being interpreted by lift rather than passing through to the browser. source code in my template: div amp; copy; quot; raquo; lt; gt; /div result from curlhttp://localhost:8080/ div amp; © quot; » lt; gt; /div The rendered characters are problematic in IE7. Why? A fix or workaround would be much appreciated. The raw XHTML is valid. Lift is yielding non-ASCII characters, but they are UTF-8 encoded and should be correctly rendered on all browsers. I have never seen a problem with IE6 or IE7 (I have not tested in IE8) Thanks, - Jon -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: how do you set system properties in lift?
Note that if you're on 1.1-SNAPSHOT you can set customProperties on
the Mailer which would allow to use some other configuration mechanism
than system property (like Props or Configgy).
val props = Map[String,String](mail.smtp.host - ...)
Mailer.customProperties = props
Mailer.authenticator = Full(new Authenticator(){
override def getPasswordAuthentication = new
PasswordAuthentication(f...@foo.com,bar)
})
Mailer.buildProps would return the Properties the Mailer is currently
using.
- Jon
On Sep 8, 2:29 pm, Tim Nelson tnell...@gmail.com wrote:
You need to set system properties:
System.setProperty(mail.smtp.starttls.enable,true);
System.setProperty(mail.smtp.host, host)
System.setProperty(mail.smtp.port, 587)
System.setProperty(mail.smtp.auth, true)
Mailer.authenticator = Full(new Authenticator {
override def getPasswordAuthentication =
new PasswordAuthentication(user, password)
})
Tim
On Tue, Sep 8, 2009 at 12:03 PM, george geo...@mattandgeorge.com wrote:
say I wanted to change the port / host that the Mailer uses.
how would I go about that?
thanks
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[Lift] Box and bind
Hi. Boxes are giving me a hard time. Say you have a model of a Product. If I've a snippet that retrieves a Product from the DB: val product : Box[Product] = Product.find(2) And now I want to bind product with bind(), product is a Box and it can be empty, how can I bind something that doesn't exists? You have to return a NodeSeq in a snippet. What should my code must do? Best regards. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
Aha,
It is a header problem. If the charset is specified in the content-
type IE will pick the right encoding. I added the following to my
Boot (I already had LiftRules.useXhtmlMimeType = false):
LiftRules.determineContentType = {
case _ = text/html; charset=utf-8
}
Maybe this should be the default?
Thanks!
On Sep 8, 2:45 pm, David Pollak feeder.of.the.be...@gmail.com wrote:
On Tue, Sep 8, 2009 at 10:37 AM, jon jonhoff...@gmail.com wrote:
Ah, IE7 seems to be confused about the character encoding of the
page. When the encoding is set to Auto Select it chooses Western
European (Windows) and the © displays as ©. If I turn off Auto
Select and manually set to Unicode (UTF-8) it displays correctly.
I wonder if this is a header issue... I'll put this on my to do list to
investigate.
Although, I bet Tim has something to say about it.
I have LiftRules.early.append(makeUtf8) in Boot. And the page
includes ?xml version=1.0 encoding=UTF-8?
Any ideas?
Thanks,
Jon
On Sep 8, 9:26 am, David Pollak feeder.of.the.be...@gmail.com wrote:
On Mon, Sep 7, 2009 at 11:38 PM, jon jonhoff...@gmail.com wrote:
Hi,
I've noticed that some special char xml tags are being interpreted by
lift rather than passing through to the browser.
source code in my template:
div
amp;
copy;
quot;
raquo;
lt;
gt;
/div
result from curlhttp://localhost:8080/
div
amp;
©
quot;
»
lt;
gt;
/div
The rendered characters are problematic in IE7.
Why?
A fix or workaround
would be much appreciated.
The raw XHTML is valid. Lift is yielding non-ASCII characters, but they
are
UTF-8 encoded and should be correctly rendered on all browsers. I have
never seen a problem with IE6 or IE7 (I have not tested in IE8)
Thanks,
- Jon
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
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[Lift] Re: Box and bind
There should be implicits that allow you to bind to a Box of a NodeSeq, so you can bind to prodBox.map(_.toForm). Otherwise bind to prodBox.map(_.toForm).openOr(NodeSeq.Empty) etc. - José Maríajosemariar...@gmail.com wrote: Hi. Boxes are giving me a hard time. Say you have a model of a Product. If I've a snippet that retrieves a Product from the DB: val product : Box[Product] = Product.find(2) And now I want to bind product with bind(), product is a Box and it can be empty, how can I bind something that doesn't exists? You have to return a NodeSeq in a snippet. What should my code must do? Best regards. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Box and bind
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
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Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
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[Lift] Re: Box and bind
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String,scala.xml.NodeSeq,java.lang.String,java.lang.String,net.liftweb.util.Helpers.BindParam,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
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-~--~~~~--~~--~--~---
[Lift] Re: Box and bind
Because the compiler interpret your expression as you expect. Instead
of:
url_enlace - (/product/ + product.id.toString)
which is what you wanted, it got:
(url_enlace - /product/) + product.id.toString)
which it can do because it can take an arbitrary object:
(url_enlace - /product/): ABindParam
or (the other implicit -)
(url_enlace - /product/): Tuple2[String, String]
and convert them to strings. Of course, once it converts to string, it
won't fit in bind()'s argument list and so it gave you the could not
find overload error.
Honestly I'm a bit fuzzy on Scala's operator precedence behavior, I
think if I recall you can't set precedence, it comes pre-set on all
the standard operators like + / -, etc.
-Ross
On Sep 8, 2009, at 3:42 PM, José María wrote:
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else
(and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box
[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your
snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do
with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You
have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
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liftweb+unsubscr...@googlegroups.com
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[Lift] Re: Box and bind
Operators starting with - and + have the same precendence so they are combined
left to right. Thus you are concatenating a BindParam with a String, returning
a String.
-
José Maríajosemariar...@gmail.com wrote:
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else (and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Box and bind
Precedence is determined by the first character of an operator.
-
Ross Mellgrendri...@gmail.com wrote:
Because the compiler interpret your expression as you expect. Instead
of:
url_enlace - (/product/ + product.id.toString)
which is what you wanted, it got:
(url_enlace - /product/) + product.id.toString)
which it can do because it can take an arbitrary object:
(url_enlace - /product/): ABindParam
or (the other implicit -)
(url_enlace - /product/): Tuple2[String, String]
and convert them to strings. Of course, once it converts to string, it
won't fit in bind()'s argument list and so it gave you the could not
find overload error.
Honestly I'm a bit fuzzy on Scala's operator precedence behavior, I
think if I recall you can't set precedence, it comes pre-set on all
the standard operators like + / -, etc.
-Ross
On Sep 8, 2009, at 3:42 PM, José María wrote:
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else
(and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box
[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your
snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do
with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You
have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
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[Lift] Re: Lift WebServices
You declared the LiftFilter twice in your web.xml file: filter filter-nameLiftFilter/filter-name display-nameLift Filter/display-name descriptionThe Filter that intercepts lift calls/description filter-classnet.liftweb.http.LiftFilter/filter-class /filter THis caused the filter to be loaded twice. Remove one of the filter declarations and you should be fine. On Tue, Sep 8, 2009 at 9:43 AM, abruzzo java.peri...@gmail.com wrote: I'm trying to set up a simple web service using Lift v1.0. I've scoured across many examples but because of changes in the api's, none of them compile. I finally found an example of a dispatcher tha compiles but in the sample as in others the dispatcher is added in the boot method of the Boot class as follows: LiftRules.dispatch.prepend(RestApi.dispatch) This compiles fine however, upon startup I get the following stack: ERROR - Failed to Boot java.lang.IllegalStateException: Cannot modify after boot. at net.liftweb.http.RulesSeq$class.safe_$qmark(LiftRules.scala:885) at net.liftweb.http.RulesSeq$class.prepend(LiftRules.scala:892) at net.liftweb.http.RulesSeq$$anon$3.prepend(LiftRules.scala:872) at net.liftweb.http.LiftFilter.preBoot(LiftServlet.scala:581) at net.liftweb.http.LiftFilter.bootLift(LiftServlet.scala:572) at net.liftweb.http.LiftFilter.init(LiftServlet.scala:548) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java: 97) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:653) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1239) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 466) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart (Jetty6PluginWebAppContext.java:124) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart (ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.plugin.Jetty6PluginServer.start (Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty (AbstractJettyMojo.java:441) at org.mortbay.jetty.plugin.AbstractJettyMojo.execute (AbstractJettyMojo.java:383) at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute (AbstractJettyRunMojo.java:210) at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java: 184) at org.apache.maven.plugin.DefaultPluginManager.executeMojo (DefaultPluginManager.java:451) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals (DefaultLifecycleExecutor.java:558) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal (DefaultLifecycleExecutor.java:512) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal (DefaultLifecycleExecutor.java:482) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures (DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments (DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute (DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java: 315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java: 430) at
[Lift] Re: Box and bind
Yup
-
José Maríajosemariar...@gmail.com wrote:
OMG
So, as - begins with - then it has the precedence of the operator
-
On Sep 8, 7:52 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
Precedence is determined by the first character of an operator.
-
Ross Mellgrendri...@gmail.com wrote:
Because the compiler interpret your expression as you expect. Instead
of:
url_enlace - (/product/ + product.id.toString)
which is what you wanted, it got:
(url_enlace - /product/) + product.id.toString)
which it can do because it can take an arbitrary object:
(url_enlace - /product/): ABindParam
or (the other implicit -)
(url_enlace - /product/): Tuple2[String, String]
and convert them to strings. Of course, once it converts to string, it
won't fit in bind()'s argument list and so it gave you the could not
find overload error.
Honestly I'm a bit fuzzy on Scala's operator precedence behavior, I
think if I recall you can't set precedence, it comes pre-set on all
the standard operators like + / -, etc.
-Ross
On Sep 8, 2009, at 3:42 PM, José María wrote:
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else
(and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box
[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your
snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do
with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You
have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Box and bind
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else (and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: setting user-agent header with Databinder
What was the answer now that you have attained it?
On Sep 9, 3:02 am, Jack Widman jack.wid...@gmail.com wrote:
You are right. I will fine tune my determine which is a good question to ask
mechanism :)
On Tue, Sep 8, 2009 at 12:54 PM, Timothy Perrett
timo...@getintheloop.euwrote:
IMHO, you'd probably get better traction with such questions in a
wider audience on the main scala-user list over at EPFL...
Cheers, Tim
On 8 Sep 2009, at 17:26, Jack Widman wrote:
Right. I will try to keep to the topic :)
I actually found him and he quickly answered me.
On Tue, Sep 8, 2009 at 12:24 PM, David Pollak
feeder.of.the.be...@gmail.com
wrote:
Jack,
I'm not sure where N8han (the author of Databinder) hangs out, but
it's not on the Lift list. :-(
Sorry.
David
On Tue, Sep 8, 2009 at 8:58 AM, jack jack.wid...@gmail.com wrote:
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try { block(res.getStatusLine.getStatusCode, res, ent) }
finally { ent foreach (_.consumeContent) }
}
/** Apply Response Handler if reponse code returns true from chk. */
def when[T](chk: Int = Boolean)(hand: Handler[T]) = x(hand.request)
{
case (code, res, ent) if chk(code) = hand.block(code, res, ent)
case (code, _, Some(ent)) = throw StatusCode(code,
EntityUtils.toString(ent, UTF_8))
case (code, _, _) = throw StatusCode(code, [no entity])
}
/** Apply a custom block in addition to predefined
[Lift] Re: Box and bind
I adapted the code but not the error, Producto is Product in Spanish.
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else (and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Box and bind
OMG
So, as - begins with - then it has the precedence of the operator
-
On Sep 8, 7:52 pm, Naftoli Gugenheim naftoli...@gmail.com wrote:
Precedence is determined by the first character of an operator.
-
Ross Mellgrendri...@gmail.com wrote:
Because the compiler interpret your expression as you expect. Instead
of:
url_enlace - (/product/ + product.id.toString)
which is what you wanted, it got:
(url_enlace - /product/) + product.id.toString)
which it can do because it can take an arbitrary object:
(url_enlace - /product/): ABindParam
or (the other implicit -)
(url_enlace - /product/): Tuple2[String, String]
and convert them to strings. Of course, once it converts to string, it
won't fit in bind()'s argument list and so it gave you the could not
find overload error.
Honestly I'm a bit fuzzy on Scala's operator precedence behavior, I
think if I recall you can't set precedence, it comes pre-set on all
the standard operators like + / -, etc.
-Ross
On Sep 8, 2009, at 3:42 PM, José María wrote:
It worked when I put the () around the bind param
and the question is ... why?
On Sep 8, 7:35 pm, Ross Mellgren dri...@gmail.com wrote:
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else
(and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box
[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your
snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do
with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You
have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Box and bind
So that doesn't seem to be a box-related thing so much as a bind
argument related thing, probably because you have a precedence
problem... try:
producto.map(product =
bind(product, xhtml,
url_enlace - (/product/ + product.id.toString),
)
).openOr(NodeSeq.Empty)
Also, FYI, you have val product = Product.find(id), but then map over
producto. I presume either producto is coming from somewhere else (and
val product is being shadowed inside the map) or that you pasted not
exactly what you're compiling.
-Ross
On Sep 8, 2009, at 3:25 PM, José María wrote:
That's my code:
val product = Product.find(id)
producto.map(product =
bind(product, xhtml,
url_enlace -- /product/ + product.id.toString ,
)
).openOr(NodeSeq.Empty)
}
and I get this error:
[INFO] use java command with args in file forced : false
/usr/home/josemaria/src/lift/helloworld/src/main/scala/demo/
helloworld/
snippet/Portada.scala:55: error: overloaded method value bind with
alternatives (String,net.liftweb.util.Box[(scala.xml.NodeSeq) =
scala.xml.NodeSeq],net.liftweb.util.Box[(scala.xml.PrefixedAttribute)
=
scala.xml.MetaData
],scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq and
(String,scala.xml.NodeSeq,net.liftweb.util.Helpers.BindParam*)
scala.xml.NodeSeq cannot be applied to
(java.lang.String
,scala.xml.NodeSeq
,java.lang.String
,java.lang.String
,net.liftweb.util.Helpers.BindParam
,net.liftweb.util.Helpers.BindParam)
bind(producto, xhtml,
^
one error found
What's wrong?
On Sep 8, 7:13 pm, Ross Mellgren dri...@gmail.com wrote:
Well it depends on precisely what you want. If you want your snippet
to become empty if the product is not there, try:
productBox.map(product = {
bind(product, ns, ...)
}).openOr(NodeSeq.Empty)
If you want only certain bind positions empty, do the same thing
inside the bind:
bind(proudct, ns,
field - productBox.map(p = Text(p.field.toString)).openOr
(NodeSeq.Empty),
...)
map is of course just one of the (simpler) operations you can do with
a Box, there's more complicated stuff if you need other variants.
-Ross
On Sep 8, 2009, at 3:06 PM, José María wrote:
Hi.
Boxes are giving me a hard time.
Say you have a model of a Product.
If I've a snippet that retrieves a Product from the DB:
val product : Box[Product] = Product.find(2)
And now I want to bind product with bind(), product is a Box
and it
can be empty, how can I bind something that doesn't exists? You have
to return a NodeSeq in a snippet. What should my code must do?
Best regards.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: setting user-agent header with Databinder
Sorry. should have thought to tell everyone. I have been coding all day
with tunnel vision!
The : method adds a Map[String, String] of headers to the request object:
http://databinder.net/sxr/dispatch-http/0.5.2/main/Http.scala.html#10878
For user agent it would be something like
val req_with_agent = req : Map(User-Agent - my user agent value)
On Tue, Sep 8, 2009 at 5:17 PM, Randinn rand...@gmail.com wrote:
What was the answer now that you have attained it?
On Sep 9, 3:02 am, Jack Widman jack.wid...@gmail.com wrote:
You are right. I will fine tune my determine which is a good question to
ask
mechanism :)
On Tue, Sep 8, 2009 at 12:54 PM, Timothy Perrett timo...@getintheloop.eu
wrote:
IMHO, you'd probably get better traction with such questions in a
wider audience on the main scala-user list over at EPFL...
Cheers, Tim
On 8 Sep 2009, at 17:26, Jack Widman wrote:
Right. I will try to keep to the topic :)
I actually found him and he quickly answered me.
On Tue, Sep 8, 2009 at 12:24 PM, David Pollak
feeder.of.the.be...@gmail.com
wrote:
Jack,
I'm not sure where N8han (the author of Databinder) hangs out, but
it's not on the Lift list. :-(
Sorry.
David
On Tue, Sep 8, 2009 at 8:58 AM, jack jack.wid...@gmail.com wrote:
Please forgive me for including so much code but I have an important
demo fast approaching and I'm kind of in a bind. I am using
Databinders Dispatch http library which is a wrapper around Javas
HttpClient library. I have included the Http class below. Does anyone
see how to set the user-agent header. Once again I apologize and
would
be much obliged for any help.
import collection.Map
import collection.immutable.{Map = IMap}
import util.DynamicVariable
import java.io.
{InputStream,OutputStream,BufferedInputStream,BufferedOutputStream}
import java.net.URI
import java.util.zip.GZIPInputStream
import org.apache.http._
import org.apache.http.client._
import org.apache.http.impl.client.{DefaultHttpClient,
BasicCredentialsProvider}
import org.apache.http.client.methods._
import org.apache.http.client.entity.UrlEncodedFormEntity
import org.apache.http.client.utils.URLEncodedUtils
import org.apache.http.entity.StringEntity
import org.apache.http.message.BasicNameValuePair
import org.apache.http.protocol.HTTP.UTF_8
import org.apache.http.params.{HttpProtocolParams, BasicHttpParams}
import org.apache.http.util.EntityUtils
import org.apache.http.auth.{AuthScope, UsernamePasswordCredentials,
Credentials}
case class StatusCode(code: Int, contents:String)
extends Exception(Exceptional resoponse code: + code + \n +
contents)
/** Http access point. Standard instances to be used by a single
thread. */
class Http {
val credentials = new DynamicVariable[Option[(AuthScope,
Credentials)]](None)
val client = new ConfiguredHttpClient
def credentialsProvider = new BasicCredentialsProvider {
override def getCredentials(scope: AuthScope) = null
}
/** /** Info Logger for this instance, default returns Connfiggy if
on classpath else console logger. */
lazy val log: Logger = try {
new Logger {
val delegate = net.lag.logging.Logger.get
def info(msg: String, items: Any*) { delegate.info(msg, items:
_*) }
}
} catch {
case e: NoClassDefFoundError = new Logger {
def info(msg: String, items: Any*) {
println(INF: [console logger] dispatch: + msg.format(items:
_*))
}
}
}
**/
/** Execute method for the given host, with logging. */
def execute(host: HttpHost, req: HttpUriRequest) = {
//log.info(%s %s%s, req.getMethod, host, req.getURI)
client.execute(host, req)
}
/** Execute for given optional parametrs, with logging. Creates
local scope for credentials. */
val execute: (Option[HttpHost], Option[Credentials], HttpUriRequest)
= HttpResponse = {
case (Some(host), Some(creds), req) =
client.credentials.withValue(Some((new AuthScope
(host.getHostName, host.getPort), creds)))(execute(host, req))
case (None, Some(creds), _) = error(Credentials specified
without explicit host)
case (Some(host), _, req) = execute(host, req)
case (_, _, req) =
//log.info(%s %s, req.getMethod, req.getURI)
client.execute(req)
}
/** Execute full request-response handler. */
def x[T](hand: Handler[T]): T = x(hand.request)(hand.block)
/** Execute request and handle response codes, response, and entity
in block */
def x [T](req: Request)(block: Handler.F[T]) = {
val res = execute(req.host, req.creds, req.req)
val ent = res.getEntity match {
case null = None
case ent = Some(ent)
}
try {
[Lift] Re: Some XML special chars rendered by lift, others not in 1.1-SNAPSHOT
Okay... I'll check in the change after Charles finishes the M5 build
On Tue, Sep 8, 2009 at 12:10 PM, jon jonhoff...@gmail.com wrote:
Aha,
It is a header problem. If the charset is specified in the content-
type IE will pick the right encoding. I added the following to my
Boot (I already had LiftRules.useXhtmlMimeType = false):
LiftRules.determineContentType = {
case _ = text/html; charset=utf-8
}
Maybe this should be the default?
Thanks!
On Sep 8, 2:45 pm, David Pollak feeder.of.the.be...@gmail.com wrote:
On Tue, Sep 8, 2009 at 10:37 AM, jon jonhoff...@gmail.com wrote:
Ah, IE7 seems to be confused about the character encoding of the
page. When the encoding is set to Auto Select it chooses Western
European (Windows) and the © displays as ©. If I turn off Auto
Select and manually set to Unicode (UTF-8) it displays correctly.
I wonder if this is a header issue... I'll put this on my to do list to
investigate.
Although, I bet Tim has something to say about it.
I have LiftRules.early.append(makeUtf8) in Boot. And the page
includes ?xml version=1.0 encoding=UTF-8?
Any ideas?
Thanks,
Jon
On Sep 8, 9:26 am, David Pollak feeder.of.the.be...@gmail.com wrote:
On Mon, Sep 7, 2009 at 11:38 PM, jon jonhoff...@gmail.com wrote:
Hi,
I've noticed that some special char xml tags are being interpreted
by
lift rather than passing through to the browser.
source code in my template:
div
amp;
copy;
quot;
raquo;
lt;
gt;
/div
result from curlhttp://localhost:8080/
div
amp;
©
quot;
»
lt;
gt;
/div
The rendered characters are problematic in IE7.
Why?
A fix or workaround
would be much appreciated.
The raw XHTML is valid. Lift is yielding non-ASCII characters, but
they
are
UTF-8 encoded and should be correctly rendered on all browsers. I
have
never seen a problem with IE6 or IE7 (I have not tested in IE8)
Thanks,
- Jon
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
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[Lift] Re: Mapper subclasses
I am trying to do what is mentioned below but am struggling with the
object side of things for my particular case. This all relates back
to trying to auto-generate some classes that I posted back a while ago
on. I would love to generate 1 file that has the trait and the object
in it that I then inherit from in my sub-class and object sub-class in
another file.
Autogenerated.scala
trait FC[MapperType : FC[MapperType]] extends Mapper[MapperType] {
self: MapperType =
object today extends MappedLong(this)
}
trait FCObj extends FC[MapperType] with LongKeyedMetaMapper[FC
[MapperType]] {
override def fieldOrder = List(today)
}
In UserClass.scala
class FC_Wrapper extends LongKeyedMapper[FC_Wrapper] with IdPK with FC
[Wrapper] {
def getSingleton = FCObj_Wrapper
// define methods
}
object FCObj_Wrapper extends FCObj {
// define auxiliary functionality
}
I know that the FCObj and FCObj_Wrapper is not correct syntax wise.
But the basic idea is that I want to have my autogeneration generate
the boilerplate code for me in a separate file. This boilerplate
would ideally include the class and object related stuff. Then in a
file that won't be stomped upon the next time I run the generator I
inherit from these objects. I hope this makes sense.
I admit to not totally understanding the templated/generic programming
that is happening.
On Sep 3, 1:33 pm, glenn gl...@exmbly.com wrote:
Isn't this really a matter of type casting, and asInstanceOf is just
Scala's
way of doing this. It's always best if you don't have to downcast your
objects, but sometimes its unavoidable.
Glenn...
On Sep 3, 10:29 am, glenn gl...@exmbly.com wrote:
I'm not sure of what the exact problem is. I created an Address trait
that
I couple with a number of mapper classes.
trait Address[OwnerType : KeyedMapper[Long, OwnerType]]{
def owner = this.asInstanceOf[OwnerType]
Where exactly does this construct break down?
Glenn...
On Sep 3, 7:55 am, Giuseppe Fogliazza g.foglia...@mcmspa.it wrote:
jon suggested to me the way to avoid both explicit type parameter and
asinstance of:
trait Timestamp[MapperType : TimeStamp[MapperType]] extends Mapper
[MapperType] {
self:MapperType =
object xdatetime extends MappedDateTime(this)
// all sorts of utility functions for dealing with timestamps
}
Thanks jon I have improved model in my application with this approach.
Giuseppe
On 3 Set, 16:16, Giuseppe Fogliazza g.foglia...@mcmspa.it wrote:
As an alternative to asInstanceOf you could use explicit type
parameter in MappedField creation:
self:MapperType =
object xdatetime extends MappedDateTime[MapperType](this)
On 3 Set, 09:19, Giuseppe Fogliazza g.foglia...@mcmspa.it wrote:
Unfortunately you cannot escape from asInstanceOf . Forcing
self:MapperType the type of this will be TimeStamp with MapperType
violating the constraint for the type of the first parameter of
MappedDateTime :T : Mapper[T].
Regards
Giuseppe
On 3 Set, 07:08, Naftoli Gugenheim naftoli...@gmail.com wrote:
So I guess you can't escape the asInstanceOf. Can you successfully
give the trait aself-type of this: MapperType =, or declare it to
extend Mapper[MapperType], without running into problems elsewhere?
-
harryhhar...@gmail.com wrote:
I've been handling this with traits, for example I have something
like
so:
trait Timestamp[MapperType : Mapper[MapperType]] {
object xdatetime extends
MappedDateTime[MapperType](this.asInstanceOf
[MapperType])
// all sorts of utility functions for dealing with timestamps
}
Then I can do
class Foo extends LongKeyedMapper[Foo] with IdPK with
Timestamp[Foo] {
// additional fields that are Foo specific
}
I have quite a few traits similar to Timestamp at this point
corresponding to various fields that appear in lots of different
tables in my application.
-harryh
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[Lift] Re: setting user-agent header
S.setHeader can be used in Lift to set a response header. Derek On Tue, Sep 8, 2009 at 9:02 AM, jack jack.wid...@gmail.com wrote: Has anyone used dispatch from databinder.net? Its an http library in Scala. I do not know how to set the User-Agent header. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: setting user-agent header
Cool. Thanks. The useful things about Lift seem to never end. On Tue, Sep 8, 2009 at 6:51 PM, Derek Chen-Becker dchenbec...@gmail.comwrote: S.setHeader can be used in Lift to set a response header. Derek On Tue, Sep 8, 2009 at 9:02 AM, jack jack.wid...@gmail.com wrote: Has anyone used dispatch from databinder.net? Its an http library in Scala. I do not know how to set the User-Agent header. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Retrieving the URL anchor
Hello, I'm having trouble finding the URL anchor (e.g. www.foo.com/test.html#this-is-the-url-anchor) while performing a URL rewrite. i looked through the HTTPRequest object, but I can't seem to find it any where. Any idea where it might be? Thanks, Xavi --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Crazy idea for lift's mega proto user: admin panel.
Right -- not knowing personally as to core vs widget (that is up to 'management'), but I would also look to the web2py and django (even Google app engine) frameworks for nice admin interface inspiration... On Sep 7, 4:16 pm, DFectuoso santiago1...@gmail.com wrote: I was thinking about how wonderful it is to get a login/register/ forgotPassword functionality with mega proto user and how it could become even better with a good tool for creating an admin section. I'm just adding the idea here so maybe if other people find value it could be considered for development(or probably it already is, i don't know). Adding an admin panel to mega proto user where the moderators/admins could change some options(like the way a user is validated, if gzip is enabled, etc) would be great for the end users of our apps, since it would be easier to change and maintain the site. Being a administrator at a Invision Power Board forum and having a couple of wordpress blogs, i see a lot of potential on this as a admin/ dev tool! Listing some of the things that i can imagine in this panel are: -phpMyAdmin-type of DB admin(browse your data easily, remove/change/ add stuff to it without having to create a CRUD for each thing) -execute queries -List the actor(and comet actors) with possibility to kill/reset them -Memory use analysis. -Statistics of use(hits, referrals, etc) -Options (any object/class/trait could have a val foo = adminPanel.option(category,optionName,description,defaultValue, otherValues[]) and be included in this place, of course the categories could create different menus. -User management(ban, authorize, give admin-rights). -Simple to-do list that all admins can edit -Log of errors/warnings/exceptions -Css editor -Easy-logo changer -File Manager(upload your images and stuff here) -String editor (you can change any default string from the megaprotouser forms and the index?) Also, a very polemic(and i think bad idea, but its common to see this in admin panels): -Installable plug-ins for this panel I know this seems like one step away from being a full blown CMS, forum, blog, etc. But if its extensible while we are building an app, it will be very useful for the different moments of development and use. Of course i don't expect any of this to be done right now, i understand there are a couple of integrations and bigger things going on but i really wanted to brainstorm on this with you guys! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] configuring web application
Simple, but appropriate, I think, question. I am using jetty on port 8080. How do configure my server so that when people just type in my domain name, they get the index.html of my application. Its been a few years since I did this. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: configuring web application
-Djetty.port=80 I think. Or set up a front end web server like nginx or apache that routes between 80 and 8080. - jackjack.wid...@gmail.com wrote: Simple, but appropriate, I think, question. I am using jetty on port 8080. How do configure my server so that when people just type in my domain name, they get the index.html of my application. Its been a few years since I did this. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Retrieving the URL anchor
On Tue, Sep 8, 2009 at 6:55 PM, Xavi Ramirez xavi@gmail.com wrote: Hello, I'm having trouble finding the URL anchor (e.g. www.foo.com/test.html#this-is-the-url-anchor) while performing a URL rewrite. i looked through the HTTPRequest object, but I can't seem to find it any where. Any idea where it might be? It's not passed as part of the request to the server. The stuff after the hash is a client-side construct. Thanks, Xavi -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] How do I hook up JS events to onsubmit on a lift-controlled form?
Hi, folks, I'm moving one of my old ruby based apps over to Scala/Lift to learn Lift better, and here's one thing I was not able to find how to do. Some forms in the old app have onsubmit event on the form tag which combines / pre-validates things in the form, puts the output into a hidden field and wipes some of the fields prior to submitting. I can't seem to find a way to hook up a JS event to a Lift form defined like so: lift:IndexView.show form=post If I add onsubmit event to this tag, it simply gets ignored. How do I do this in Lift? Also, Ruby on Rails conveniently appends an integer value at the end of script and CSS urls, which comes in handy when you want to maximize caching but don't want to risk serving the old scripts and stylesheets to the users. Is there a corresponding mechanism for this in Lift? Thank you. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Lift WebServices
On Tue, Sep 8, 2009 at 4:19 PM, abruzzo java.peri...@gmail.com wrote: Whoops! Should have looked there. That fixed it. Thanks again for the help. Sure thing. On Sep 8, 4:44 pm, David Pollak feeder.of.the.be...@gmail.com wrote: You declared the LiftFilter twice in your web.xml file: filter filter-nameLiftFilter/filter-name display-nameLift Filter/display-name descriptionThe Filter that intercepts lift calls/description filter-classnet.liftweb.http.LiftFilter/filter-class /filter THis caused the filter to be loaded twice. Remove one of the filter declarations and you should be fine. On Tue, Sep 8, 2009 at 9:43 AM, abruzzo java.peri...@gmail.com wrote: I'm trying to set up a simple web service using Lift v1.0. I've scoured across many examples but because of changes in the api's, none of them compile. I finally found an example of a dispatcher tha compiles but in the sample as in others the dispatcher is added in the boot method of the Boot class as follows: LiftRules.dispatch.prepend(RestApi.dispatch) This compiles fine however, upon startup I get the following stack: ERROR - Failed to Boot java.lang.IllegalStateException: Cannot modify after boot. at net.liftweb.http.RulesSeq$class.safe_$qmark(LiftRules.scala:885) at net.liftweb.http.RulesSeq$class.prepend(LiftRules.scala:892) at net.liftweb.http.RulesSeq$$anon$3.prepend(LiftRules.scala:872) at net.liftweb.http.LiftFilter.preBoot(LiftServlet.scala:581) at net.liftweb.http.LiftFilter.bootLift(LiftServlet.scala:572) at net.liftweb.http.LiftFilter.init(LiftServlet.scala:548) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java: 97) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:653) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1239) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 466) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart (Jetty6PluginWebAppContext.java:124) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart (ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart (HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:50) at org.mortbay.jetty.plugin.Jetty6PluginServer.start (Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty (AbstractJettyMojo.java:441) at org.mortbay.jetty.plugin.AbstractJettyMojo.execute (AbstractJettyMojo.java:383) at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute (AbstractJettyRunMojo.java:210) at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java: 184) at org.apache.maven.plugin.DefaultPluginManager.executeMojo (DefaultPluginManager.java:451) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals (DefaultLifecycleExecutor.java:558) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal (DefaultLifecycleExecutor.java:512) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal (DefaultLifecycleExecutor.java:482) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures (DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments (DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute (DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
[Lift] Re: configuring web application
On whatever command line you use to launch jetty. - Jack Widmanjack.wid...@gmail.com wrote: And (pardon the noobality of this question) Where do I put the -Djetty.port=80? On Tue, Sep 8, 2009 at 10:30 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: -Djetty.port=80 I think. Or set up a front end web server like nginx or apache that routes between 80 and 8080. - jackjack.wid...@gmail.com wrote: Simple, but appropriate, I think, question. I am using jetty on port 8080. How do configure my server so that when people just type in my domain name, they get the index.html of my application. Its been a few years since I did this. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] JsonHandler stops working
Hi, I am new to lift so I hope this is not an ignorant question/problem. I am having a problem where my json handler stops working. I believe it is timing out independent of the session. If I have my browser open for a short while, the json functions stop working but the ajax functions keep working. I have tried to track the time and find more details but I have not found the exact timeout. I believe it might be the 10 minute default timeout. It appears that the json functions continue to work if they are periodically called. Refreshing the page does not help. The json functions work again if I delete the cookie (and thus, get a new session). This problem also occurs at http://demo.liftweb.net/json_more (This is the example I started with.) In the demo app the server interaction on the json_more page stops working but the server interaction from AJAX Samples still works. I have tried changing LiftRules.enableLiftGC but this did not fix the problem. I have also tried the JsonHandler both as and not as a SessionVar. I have looked at S.functionLifespan but I am not sure how a app can use this. It seems to mostly be used internally when manipulating the function list. Is there a way I prevent my json handler from being garbage collected or a way to touch it periodically so that it does not expire? I am using liftweb-1.1m4 and jetty 6.1.20. In the time I wrote this, I was able to reproduce the problem on demo.liftweb.net. Thanks, Dave --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: JsonHandler stops working
This is a bug that was introduced a few months ago and fixed last week. It'll be fixed in M5 and the fix is available on SNAPSHOT. On Tue, Sep 8, 2009 at 9:04 PM, dave dinosau...@gmail.com wrote: Hi, I am new to lift so I hope this is not an ignorant question/problem. I am having a problem where my json handler stops working. I believe it is timing out independent of the session. If I have my browser open for a short while, the json functions stop working but the ajax functions keep working. I have tried to track the time and find more details but I have not found the exact timeout. I believe it might be the 10 minute default timeout. It appears that the json functions continue to work if they are periodically called. Refreshing the page does not help. The json functions work again if I delete the cookie (and thus, get a new session). This problem also occurs at http://demo.liftweb.net/json_more (This is the example I started with.) In the demo app the server interaction on the json_more page stops working but the server interaction from AJAX Samples still works. I have tried changing LiftRules.enableLiftGC but this did not fix the problem. I have also tried the JsonHandler both as and not as a SessionVar. I have looked at S.functionLifespan but I am not sure how a app can use this. It seems to mostly be used internally when manipulating the function list. Is there a way I prevent my json handler from being garbage collected or a way to touch it periodically so that it does not expire? I am using liftweb-1.1m4 and jetty 6.1.20. In the time I wrote this, I was able to reproduce the problem on demo.liftweb.net. Thanks, Dave -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
