Re: RewriteMap prg: How to pass value from Python3 script back to Apache24?

[Benedikt Kroll <benedikt.kroll@xxxxxxxxxxxxxxxxx>]

The solution I just found is the following: Even though the python 
script has the necessary execute permissions, the RewriteMap definition 
required that the python interpreter is included in the Apache config file:

RewriteMap extrw "prg:/usr/bin/python3 /opt/extrw.py"

Now it worked using this script:

while True:
     arg = sys.stdin.readline() # makes sense, but will work without
     newValue = "/index.html" # placeholder for testing
     sys.stdout.write(newValue + "\n")
     sys.stdout.flush()



Am 10.11.18 um 20:33 schrieb Benedikt Kroll:
> Hi,
>
> using Rewrite Map with MapType prg in Apache 2.4, I'm having trouble 
> passing the value back to Apache.
>
> The log says "map lookup OK", but the value is empty.
>
> On Stackoverflow and others, I found and tried out some examples, which 
> in some cases where quite old, so probably written for older versions.
>
> The following is what I extracted from the more current hints I could find.
>
>
> *.conf
>          RewriteEngine On
>          RewriteMap extrw "prg:/opt/extrw.py"
>          RewriteRule "^(.*)" "${extrw:%{REQUEST_URI}}"
>
>
> /opt/extrw.py
>      import sys
>      while True:
>          newValue = "/index.html"  # placeholder for testing
>          sys.stdout.write(newValue + "/n")
>          sys.stdout.flush()
>
>
> log for curl 127.0.0.1/abc
>      init rewrite engine with requested uri /abc
>      applying pattern '^(.*)' to uri '/abc'
>      map lookup OK: map=extrw key=/abc -> val=
>      rewrite '/abc' -> ''
>      local path result:
>
>
> The expected result would be to have "map lookup OK: map=extrw key=/abc 
> -> val=/index.html" in the third line.
>
> Any help would be appreciated!
>
> Thanks!
> Benedikt
>
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