Apache URL Rewriting Module (mod. Engelschall, All rights reserved. Engelschallrse@engelschall. The Apache webserver API (application programmers interface) has a hook (an. URL- to- filename translation which is primarily used by this. Sep 8, 2014 at 2:00 pm: On Sep 3, 2014, at 9:37 AM, Rich Bowen wrote. Hi, currently, the External Rewriting Program (RewriteMap 'prg:') is run as root. I would like to change it but I see three ways how to do it: 1. Execute it right after drop. This looks like best way, but I. I am trying to set up an external rewriting map to do the job on my server and. For every request, this module is. URL (or even with an URI in a proxy- context) and. Apache. server continues with all following processing steps, like running the hooks. The patterns are full regular. Unix community. They are applied to. URL. There is support for rewriting loops, rewriting breaks, chained. MIME- types. forced proxy- module throughput etc. If the. generated URI is self- referencing (i. This provides support for so- called webclusters with. URL trees. These are pairs of condition strings (which can be. I use the following configuration: RewriteEngine On RewriteMap url-rewrite prg:/usr/bin/url-rewrite RewriteRule ^(.*)$ $ An external program that opens the FIFO for reading and writing must be started before proftpd is started. For each mapping-function use one RewriteMap directive to declare its rewriting map name. External Rewriting Program MapType: prg. External rewriting programs are not started if they're defined in a context that does not have RewriteEngine set to on. Hello-- Maybe someone had this problem. I am trying to set up an external rewriting map to do the job on my server and it doesn't seem to work. URL Rewriting Guide This document supplements the mod. Use an external RewriteMap, i.e. It is run once on startup of Apache receives the requested URLs on STDIN. This document supplements the mod. Module documentation; mod Hey Tamas, this is the best guide for url rewriting, that ive found. I am new to url rewriting and this guide helped me to understand it, and to get started with it. Thanks very much for this great guide;). The. condition patterns are again regular expressions and get matched against the. Preceding a rule with such conditions. This gives you a. But there is. a slight difference between situations 1 & 2 and 3 & 4. In situation 1 & 2 the context is global hence the rule patterns get. URLs and the substitutions have to create full URLs. These are listed where. URLs can be re- written in any number of. If such a part occurs, the. URL and injects it into the. Apache- internal request information, just as it was coming from. You can additionally. HTTP headers. With this you can. URLs plus protocol, host and port) can be generated instead of. URLs. Additionally when those occur the module automatically forces. Alias. and Redirect directives. For instance, to proxy away only. This. is very useful for the webmaster to see how the rewriting rules are. You can. set the amount of verbosity for this logging. There is support for rewriting loops, rewriting. MIME- types. forced proxy- throughputs, etc. In other words: Unless you set. This means it will. NOT run with any Apache server prior to 1. If you want to use this module but. Apache server running, please upgrade. Since it is not. obvious which these are, the simple solution is to make it the last. Configuration list. If it is set to off this module does. It does not even update the SCRIPT. If the name does not begin. Server Root. This will slow down the server with no advantage to the. Use the rewriting logfile only for debugging or at least. Level not greater than 2! If the key is. found, the map- function directive is substituted by Subst. Value. If. the key is not found then it is substituted by Default. Value. You can create such files either manually. DAU. Rewrite. Map real- to- host txt: /path/to/file/map. DBM Hashfile Format. This is a binary NDBM format file containing the. Plain Text Format files. You can create. such a file with any NDBM tool or with the dbmmanage program. Apache distribution. It then has to give back the looked- up value as a. NULL'' if it fails (i. A trivial program which will implement a 1: 1 map. For each. mapping- function use one Rewrite. Map directive to declare its. While you cannot declare a map in per- directory. This way you can have map- functions in rules which are used. This is no problem, because the external lookup. As you will see below, Rewrite. Rule can be. used in per- directory config files (. There it will act. At the end. it is automatically added. To be able to do this it needs. URL- prefix or URL- base is. By default this. prefix is the corresponding filepath itself. But at most websites URLs are. NOT directly related to physical filename paths, so this assumption. There you have to use the Rewrite. Base. directive to specify the correct URL- prefix. BUT: While this seems like a serious overhead, it really isn't, because. Apache server and the same. Apache. So, you can be. Precede a. Rewrite. Rule directive with one ore more Rewrite. Cond. directives. The first name is just the. CGI variable name while the second is the consistent. REQUEST. This is looked- up. Apache server process. This is looked- up. HTTP request. Instead of real. Treats the Test. String as a pathname and. Flags. is a comma- separated list of the following flags. Typical example. Rewrite. Cond %. If you use the Lynx browser (which is Terminal- based), then you. Each directive then defines one single. Here ``current'' means the value of the. URL when this rule gets applied. This may not be the original requested. URL, because there could be any number of rules before which already matched. This gives you the ability to negate a pattern; to say, for instance: ``if. URL does NOT match to this pattern''. This can be used. When using the NOT character to negate a pattern you cannot. This is impossible because when. NOT match, there are no contents for the groups. In. consequence, if negated patterns are used, you cannot use $N in the. The server- variables are the same as for the. Test. String of a Rewrite. Cond directive. The. Rewrite. Map directive and are. These three types of variables are expanded in the order of. No, it is useful to provide rewriting. URLs but do no substitution, e. When you prefix a substitution. Flags is a. comma- separated list of the following flags. Use it for rules which should. URL and gives it back to the client, e. If not, you are redirecting to an invalid. You have to make sure that the substitution. URI (e. g. If not you get an error from. Use this flag to achieve a more powerful implementation. This corresponds to the Perl. C. language. Use this flag to prevent the currently rewritten URL from being. For. example, use it to rewrite the root- path URL ('/') to a real. Here the URL to match is again not the original URL but the URL. Use this flag to restart the rewriting process, i. But be careful not to create a deadloop!'chain. This has the following. If the rule does not match, then all following. For. instance, this can be used to simulate the old mod. For instance, sub- requests. Apache when mod. Use this flag to exclude some rules. A trivial example to show the. If you want to rewrite /abc to /def via the rewriting. The. typical example is the use of mod. The Apache Group has discussed this problem and will. Apache version 2. Use this to make pseudo. The last rule of the then- clause becomes. N where N is the number of rules in the else- clause. But in per- directory configuration. This feature is. essential for many sorts of rewriting, because without this prefix stripping. If your administrator has. Follow. Sym. Links for a user's directory, then. Then we only have to add the. Apache server configuration file. Rewrite. Log /anywhere/rewrite. Rewrite. Map real- to- user txt: /anywhere/map. Rewrite. Rule ^/(. This module keeps track of two additional (non- standard) CGI/SSI environment. SCRIPT. These contain. Web- view to the current resource, while the standard CGI/SSI. SCRIPT. This is. important because the rewriting process is primarily used to rewrite logical. URLs to physical pathnames. In this example the new file has to be. URL (i. e. Some special solutions are listed here. To rewrite a lot of URL notations into their canonical form, e. This is. obtained by instructing all servers to redirect URLs of the form/. This gives our WWW. URL has to include any. The knowledge of the. This will check a. CGI- program for security problems. If it passes, the CGI- program. UID/GID of the physical owner. For example: We have a search- engine. CGI- program, which gets the directory to. QUERY. This was really bad, because the user has to. CGI script and the. With the help of this rewriting module he now. URL. and this gets rewritten on- the- fly to the physically needed format. You can achieve this. Rewrite. Rule ^oldfile\. Every webmaster can sing a song about the problem of the trailing slash. URLs referencing directories. If they are missing, the server dumps an. And because this file is a directory it. To do this correctly we have to use a external. If we. only did a internal rewrite, this would only work for the directory page. URLs, because the browser would request an in- lined object. For. instance, a request for image. This gives a more powerful implementation. Proxy. Pass directive from mod. It is. activated by the P (proxy) flag. To. achieve this we setup the following rule in /u/rse/manuals. Rewrite. Engine On. Rewrite. Rule ^mod. The proxy feature does not copy the file to your directory, it. Instead it is internally retrieved by. Apache proxy module and perhaps internally cached. This feature is. very useful because it allows you to have virtual, up- to- date copies of. It is both my hobby and job. I'm studying computer science I have also. Every week I need some sort of software so I created a deep. I stored the packages. Aug 3 1. 8: 3. 9 Audio/. Jul 9 1. 4: 3. 7 Benchmark/. Jul 9 0. 0: 3. 4 Crypto/. Jul 9 0. 0: 4. 1 Database/. Jul 3. 0 1. 9: 2. Dicts/. drwxrwxr- x 1. Jul 9 0. 1: 5. 4 Graphic/. Jul 9 0. 1: 5. 8 Hackers/. Jul 9 0. 3: 1. 9 Info. Sys/. drwxrwxr- x 3 netsw users 5. Jul 9 0. 3: 2. 1 Math/. Jul 9 0. 3: 2. 4 Misc/. Aug 1 1. 6: 3. 3 Network/. Jul 9 0. 5: 5. 3 Office/. Jul 9 0. 9: 2. 4 Soft. Eng/. drwxrwxr- x 7 netsw users 5. Jul 9 1. 2: 1. 7 System/. Aug 3 2. 0: 1. 5 Typesetting/. Jul 9 1. 4: 0. 8 X1. In July 1. 99. 6 I decided to make this 3. MB archive public to the world. Web interface (. http: //net. Because the above structure is accessible. FTP as well, and I didn't want my CGI scripts to be there. I put them. under /e/netsw/. Aug 1 1. 8: 1. 0 . Aug 5 1. 5: 5. 1 DATA/. Aug 5 1. 6: 3. 5 LOGFILE. Aug 4 0. 9: 2. 7 TODO. Aug 1 1. 8: 0. 1 netsw- about. Aug 2 1. 0: 3. 3 netsw- access. Aug 1 1. 7: 3. 5 netsw- changes. Aug 5 1. 4: 4. 9 netsw- home. Jul 8 2. 3: 4. 7 netsw- img/. Aug 5 1. 5: 4. 9 netsw- lsdir. Aug 3 1. 8: 4. 3 netsw- search. Aug 1 1. 7: 4. 1 netsw- tree. Jul 3. 0 1. 6: 3. The DATA/ subdirectory holds the above directory structure, i. We want. to hide the DATA/ directory from the user while running the. CGI scripts for the various URLs. And here comes the killer configuration. Options Exec. CGI Follow. Sym. Links Includes Multi. Views. Rewrite. Engine on. Rewrite. Base /net. Rewrite. Rule ^$ netsw- home. But the generation takes a lot of time. HTML output is not really sensitive enough that we need. It would be enough to have it. I expected val=http: //1. This causes the user to actually get the wrong image file. Note: If you want to get detailed debug log like the above (with performance implications) use: Rewrite. Log /path/to/file. Rewrite. Log. Level 9.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2016
Categories |