Python to PHP Login System (HTTP Post)
Hi everyone, I'm creating a desktop Python application that requires web-based authentication for accessing additional application features. HTTP GET is really simple. HTTP POST is not (at least for me anyway);) I have tried a few different sources, but I cannot get HTTP POST to successfully log in. I can login using FireFox at http://www.magnetshare.com/main.php I suggest you register a dummy login to see what I mean (don't enter your real e-mail address). Now here's some code: -- msparams = urllib.urlencode({'user': self.components.User.text, 'pass': self.components.MagnetSharePassword.text, 'sublogin': '1'}) try: f = urllib() ***What should go here?*** fc = f.read() fc.close() except: self.statusBar.text = "Disconnected" result = dialog.alertDialog(self, 'Couldn\'t connect to MagnetShare.com! Please check your Internet connection, and then try again.') else: print fc --- Also, could you let us know what modules we should import? Thanks for checking this out! By the way, the PHP system I'm using is super easy to set up: http://www.evolt.org/article/PHP_Login_System_with_Admin_Features/17/60384/index.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
You need to use httplib. http://docs.python.org/lib/httplib-examples.html Jeethu Rao -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
Jeethu Rao wrote: > You need to use httplib. > http://docs.python.org/lib/httplib-examples.html > > Jeethu Rao Not at all. They need to read the documentation for urrlib: http://docs.python.org/lib/module-urllib.html http://docs.python.org/lib/node483.html "The following example uses the "POST" method instead:" Additionally, they probably need to use cookielib, otherwise the logged in state will not be persistant. -- - Justin -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
On 22 Jun 2006 16:19:50 -0700, "Justin Azoff" <[EMAIL PROTECTED]> wrote: >Jeethu Rao wrote: >> You need to use httplib. >> http://docs.python.org/lib/httplib-examples.html >> >> Jeethu Rao > >Not at all. They need to read the documentation for urrlib: > >http://docs.python.org/lib/module-urllib.html >http://docs.python.org/lib/node483.html >"The following example uses the "POST" method instead:" > >Additionally, they probably need to use cookielib, otherwise the logged >in state will not be persistant. Here's what's strange... I tried using urllib like this: -- try: msparams = urllib.urlencode({'user': self.components.User.text, 'pass': self.components.MagnetSharePassword.text, 'sublogin': 1}) f = urllib.urlopen("http://www.magnetshare.com/process.php";, msparams) fc = f.read() fc.close() print fc except: self.statusBar.text = "Disconnected" result = dialog.alertDialog(self, 'Couldn\'t connect to MagnetShare.com! Please check your Internet connection, and then try again.') else: print fc --- ...and then I visited http://www.magnetshare.com/main.php to see if I was logged in. Sure enough I was logged in, but the exception was thrown anyway. I commented out the urlopen, f, and fc lines and tested it again. This time I made it to "else:" I'm stumped. I'm glad that the user can log in; however, the MagnetShare application needs to read in the response from the server, and then decide what to do with the information. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
[EMAIL PROTECTED] writes: > On 22 Jun 2006 16:19:50 -0700, "Justin Azoff" > <[EMAIL PROTECTED]> wrote: > > >Jeethu Rao wrote: > >> You need to use httplib. > >> http://docs.python.org/lib/httplib-examples.html > >> > >> Jeethu Rao > > > >Not at all. They need to read the documentation for urrlib: > > > >http://docs.python.org/lib/module-urllib.html > >http://docs.python.org/lib/node483.html > >"The following example uses the "POST" method instead:" > > > >Additionally, they probably need to use cookielib, otherwise the logged > >in state will not be persistant. Or you may not be able to log in at all, for an everyday meaning of "log in". > Here's what's strange... I tried using urllib like this: > -- > try: > msparams = urllib.urlencode({'user': > self.components.User.text, 'pass': > self.components.MagnetSharePassword.text, 'sublogin': 1}) >f = urllib.urlopen("http://www.magnetshare.com/process.php";, > msparams) > fc = f.read() > fc.close() > print fc > except: > self.statusBar.text = "Disconnected" > result = dialog.alertDialog(self, 'Couldn\'t connect to > MagnetShare.com! Please check your Internet connection, and then try > again.') > else: > print fc > --- > ...and then I visited http://www.magnetshare.com/main.php to see if I > was logged in. Sure enough I was logged in, but the exception was That's not how it works (assuming you visited that URL in a browser, not using Python). The "logged-in-ness" comes from a "session ID" cookie that is stored in your browser (or in your Python code). The server sends a cookie when you log in (and usually stores your cookie in a database). The browser keeps the cookie. When you come back later using the same browser (maybe even after you've closed the browser, if it's the right kind of cookie), your browser sends the cookie back and the server looks up the session ID from that cookie in the database, and sees it's you. If you come back using a different browser (and your Python program is effectively just a different browser than your copy of Firefox or IE or whatever), then the server won't remember who you are, so you're not logged in *in that browser session*, even if the server has you recorded in its database as logged in from a different browser session. So, the fact that you saw yourself as logged in when you looked using your web browser doesn't really help your Python program -- it's still out in the cold. > thrown anyway. I commented out the urlopen, f, and fc lines and > tested it again. This time I made it to "else:" > > I'm stumped. I'm glad that the user can log in; however, the > MagnetShare application needs to read in the response from the server, > and then decide what to do with the information. Here's one way: easy_install mechanize (install easy_install first if you don't have that: http://peak.telecommunity.com/DevCenter/EasyInstall#installing-easy-install ) #--- import mechanize SHOW_COOKIES = True br = mechanize.Browser() if SHOW_COOKIES: cj = mechanize.CookieJar() br.set_cookiejar(cj) br.open("http://www.magnetshare.com/main.php";) br.select_form(nr=0) br["user"] = "joe" br["pass"] = "password" r = br.submit() assert "Logged In" in r.get_data() if SHOW_COOKIES: for cookie in cj: print cj #--- (note the cookiejar is always there; you only need to create one and pass it in in order to get at it to e.g. print out the cookies you've collected) John -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
On Sat, 24 Jun 2006 01:28:29 GMT, [EMAIL PROTECTED] (John J. Lee) wrote: >[EMAIL PROTECTED] writes: > >> On 22 Jun 2006 16:19:50 -0700, "Justin Azoff" >> <[EMAIL PROTECTED]> wrote: >> >> >Jeethu Rao wrote: >> >> You need to use httplib. >> >> http://docs.python.org/lib/httplib-examples.html >> >> >> >> Jeethu Rao >> > >> >Not at all. They need to read the documentation for urrlib: >> > >> >http://docs.python.org/lib/module-urllib.html >> >http://docs.python.org/lib/node483.html >> >"The following example uses the "POST" method instead:" >> > >> >Additionally, they probably need to use cookielib, otherwise the logged >> >in state will not be persistant. > >Or you may not be able to log in at all, for an everyday meaning of >"log in". > > >> Here's what's strange... I tried using urllib like this: >> -- >> try: >> msparams = urllib.urlencode({'user': >> self.components.User.text, 'pass': >> self.components.MagnetSharePassword.text, 'sublogin': 1}) >> f = urllib.urlopen("http://www.magnetshare.com/process.php";, >> msparams) >> fc = f.read() >> fc.close() >> print fc >> except: >> self.statusBar.text = "Disconnected" >> result = dialog.alertDialog(self, 'Couldn\'t connect to >> MagnetShare.com! Please check your Internet connection, and then try >> again.') >> else: >> print fc >> --- >> ...and then I visited http://www.magnetshare.com/main.php to see if I >> was logged in. Sure enough I was logged in, but the exception was > >That's not how it works (assuming you visited that URL in a browser, >not using Python). The "logged-in-ness" comes from a "session ID" >cookie that is stored in your browser (or in your Python code). The >server sends a cookie when you log in (and usually stores your cookie >in a database). The browser keeps the cookie. When you come back >later using the same browser (maybe even after you've closed the >browser, if it's the right kind of cookie), your browser sends the >cookie back and the server looks up the session ID from that cookie in >the database, and sees it's you. > >If you come back using a different browser (and your Python program is >effectively just a different browser than your copy of Firefox or IE >or whatever), then the server won't remember who you are, so you're >not logged in *in that browser session*, even if the server has you >recorded in its database as logged in from a different browser >session. > >So, the fact that you saw yourself as logged in when you looked using >your web browser doesn't really help your Python program -- it's still >out in the cold. > > >> thrown anyway. I commented out the urlopen, f, and fc lines and >> tested it again. This time I made it to "else:" >> >> I'm stumped. I'm glad that the user can log in; however, the >> MagnetShare application needs to read in the response from the server, >> and then decide what to do with the information. > >Here's one way: > >easy_install mechanize > >(install easy_install first if you don't have that: > >http://peak.telecommunity.com/DevCenter/EasyInstall#installing-easy-install > >) > >#--- >import mechanize > >SHOW_COOKIES = True > >br = mechanize.Browser() >if SHOW_COOKIES: >cj = mechanize.CookieJar() >br.set_cookiejar(cj) >br.open("http://www.magnetshare.com/main.php";) >br.select_form(nr=0) >br["user"] = "joe" >br["pass"] = "password" >r = br.submit() >assert "Logged In" in r.get_data() >if SHOW_COOKIES: >for cookie in cj: >print cj >#--- > > >(note the cookiejar is always there; you only need to create one and >pass it in in order to get at it to e.g. print out the cookies you've >collected) > > >John Thanks a lot John! This "mechanize" was exactly what I was looking for. There are some key improvements over urllib2 and also, cookies are turned on by default. Just an FYI for others, PHP can set $SESSIONID when the user refuses cookies. I haven't decided whether the application will use cookies or not, but luckily I got the login page response I was looking for. Now, I just parse the HTML using Python, and then go to the next screen in the MagnetShare application. Here's the test code I used. --- import mechanize br = mechanize.Browser() br.open("http://www.magnetshare.com/main.php";) br.select_form(nr=0) br["user"] = "test2" br["pass"] = "test2" response1 = br.submit() fc = response1.read() print fc Cheers! Ben -- http://mail.python.org/mailman/listinfo/python-list
Re: Python to PHP Login System (HTTP Post)
[EMAIL PROTECTED] (John J. Lee) writes: [...] > #--- > import mechanize > > SHOW_COOKIES = True > > br = mechanize.Browser() > if SHOW_COOKIES: > cj = mechanize.CookieJar() > br.set_cookiejar(cj) > br.open("http://www.magnetshare.com/main.php";) > br.select_form(nr=0) > br["user"] = "joe" > br["pass"] = "password" > r = br.submit() > assert "Logged In" in r.get_data() > if SHOW_COOKIES: > for cookie in cj: > print cj > #--- That last line should of course have been: print cookie and not: print cj John -- http://mail.python.org/mailman/listinfo/python-list