[QUESTION]PerlHandler and PerlLogHandler Phase
Hi! I am been working on modperl for some time this is the first time I am posting a question on the mailing list. Please bear with me if I miss something or give too much information. I have been working on a project that can be described as an online library. The modperl portion of it adds a header,navigation bar and a footer and display the content file of the book which I shall try to draw below. The URI is used to determine what ModPerl nav. bar to generate. These URI are always in the format /en/book/bookname/ch01p01.html. I have used the following in my configuration file Location /en/book PerlHandler MyApache::StartBook PerlLogHandler MyApache::ActivityLogger /Location Things would have been great if the ch01p01.html was just one long html file without images,stylesheets and a number of script src=. calls. The general format of these html files are as follows. script Javascript Global Variables set, the content file to open. chapterNum=01 chapterPage=01 /script trtd script scr=js/bookconfig.js script scr=js/+chapterNum+P+chapterPage+.js script scr=js/chapnav.js script scr=js/footer.js /td/tr Here is the layout -- ModPerl Gen Header(Nav. Bar for suhjects in library) --- ModPerl| Contents of the course Gen. | which contains html,stylesheets, Nav Bar| images,audio files,java class files for selected | in a directory below the html file book | [-JS Nav bar mainly images] | [!-Footer with current page number] -- ModPerl Footer (Copyrights info.) - Here are the problems/Questions that I face: 1. Since in this case each requests for a html file has multiple files that need to be downloaded by the client. Am I right to assume that the handler will act on each and every file requested file below my /en/course URI? 2.If the answer to the above question is YES? The Handler will add headers,footers for everything. What do I need to do to apply the handler logic just to the requested page and return the remaining files that are needed to complete the requested page as they are? 3. When I move these JS files outside the /en/course URI they seem to work? But now when I put them with in? It just displays the Javascript code like simple text on the browser. 4. In the Logging Phase, I need to store the last requested page as a bookmark. So if the user logs out, and logs back in it takes him to the same page. Since the html files are made up of some many requests to other files, it stores the last file it requested. It may be path to an image file,style sheet file etc... Is there any way I can circumvent this problem? Thank You very much for you help in advance. I apologize if the email is too detailed. Mark __ Do You Yahoo!? Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com
Re: [QUESTION]PerlHandler and PerlLogHandler Phase
Hi! On Fri, Feb 01, 2002 at 10:24:24AM -0800, Mod Perl wrote: Here are the problems/Questions that I face: 1. Since in this case each requests for a html file has multiple files that need to be downloaded by the client. Am I right to assume that the handler will act on each and every file requested file below my /en/course URI? Add something like return DECLINED unless $r-content_type() eq 'text/html'; near the top of your handler. This way only html-documents get handled by your handler, the rest falls through to the default apache handler. -- D_OMM + http://domm.zsi.at -+ O_xyderkes | neu: Arbeitsplatz | M_echanen | http://domm.zsi.at/d/d162.html | M_asteuei ++
RE: [QUESTION]PerlHandler and PerlLogHandler Phase
2.If the answer to the above question is YES? The Handler will add headers,footers for everything. What do I need to do to apply the handler logic just to the requested page and return the remaining files that are needed to complete the requested page as they are? In the Eagle book (as well as a Perl Journal article) there is an example of a Apache::Header/Apache::Footer. CPAN doesn't show them right now. But you could implement them as filters using Apache::Filter to mark up each document on its way out, based on URI. 3. When I move these JS files outside the /en/course URI they seem to work? But now when I put them with in? It just displays the Javascript code like simple text on the browser. SCRIPT SRC=/en/course/one.js/SCRIPT ... or you could template them in directly, since you're playing w/ the content already. 4. In the Logging Phase, I need to store the last requested page as a bookmark. So if the user logs out, and logs back in it takes him to the same page. Since the html files are made up of some many requests to other files, it stores the last file it requested. It may be path to an image file,style sheet file etc... Is there any way I can circumvent this problem? You could use a cookie, issued with each document, noting what url they are on right now?? Logging it (storing it) and then reading it back are bound to be way too much work. HTH! L8r, Rob
Re: [QUESTION]PerlHandler and PerlLogHandler Phase
Thanks Thomas, Question: Here are the problems/Questions that I face: 1. Since in this case each requests for a html file has multiple files that need to be downloaded the client. Am I right to assume that the handler will act on each and every file requested file below my /en/course URI? Answer: Add something like return DECLINED unless $r-content_type() eq 'text/html'; near the top of your handler. This way only html-documents get handled by your handler, the rest falls through to the default apache handler. This one did work for most of the cases. Which is the first war among many battles? I also have cases where the book content has pop up windows to display meaning of words that do not need the entire header to be displayed .i.e. the handler should not be act on such a request. Question: Is there a way I can put them in a directory and when the uri matches that directory, i disable the handler? If so how can I do it? Mark __ Do You Yahoo!? Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com
RE: [QUESTION]PerlHandler and PerlLogHandler Phase
Thanks Rob for your reply. --- Rob Bloodgood [EMAIL PROTECTED] wrote: Question: 2.If the answer to the above question is YES? The Handler will add headers,footers for everything. What do I need to do to apply the handler logic justto the requested page and return the remaining files that are needed to complete the requested page as they are? Answer: In the Eagle book (as well as a Perl Journal article) there is an example of a Apache::Header/Apache::Footer. CPAN doesn't show them right now. But you could implement them as filters using Apache::Filter to mark up each document on its way out, based on URI. Reply: I shall look into this. There is some database entries that have to take place as the web pages are being servered. Question: 3. When I move these JS files outside the /en/course URI they seem to work? But now when I put them with in? It just displays the Javascript code like simple text on the browser. Answer: SCRIPT SRC=/en/course/one.js/SCRIPT ... or you could template them in directly, since you're playing w/ the content already. Reply: Most of the books are already existing in that format. To Change them would be a lot of code rewriting,testing and deploying. Question: 4. In the Logging Phase, I need to store the last requested page as a bookmark. So if the user logs out, and logs back in it takes him to the same page. Since the html files are made up of some many requests to other files, it stores the last file it requested. It may be path to an image file,style sheet file etc... Is there any way I can circumvent this problem? Answer: You could use a cookie, issued with each document, noting what url they are on right now?? Logging it (storing it) and then reading it back are bound to be way too much work. Reply: I kind of figured this portion out. Though its is not a clean way to do it. In the ActivityLogger.pm, I plan to use $r-the_request instead of $r-uri. The PerlLogHandler being called on every request will be overwriting the same data in the database. Let us assume that the web page request has 5 more files that it depends. Would not the PerlLogHandler be called when each file is being server. HTH! L8r, Rob __ Do You Yahoo!? Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com
