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30 lines
1.6 KiB
Plaintext
30 lines
1.6 KiB
Plaintext
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The Apache/Perl integration project brings together the
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full power of the Perl programming language and the Apache
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HTTP server. This is achieved by linking the Perl runtime
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library into the server and providing an object oriented
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Perl interface to the server's C language API. These
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pieces are seamlessly glued together by the mod_perl
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server plugin, making it is possible to write Apache
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modules entirely in Perl. In addition, the persistent
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interpreter embedded in the server avoids the overhead of
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starting an external interpreter and the penalty of Perl
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start-up (compile) time.
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Without question, the most popular Apache/Perl module is
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Apache::Registry module. This module emulates the CGI
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environment, allowing programmers to write scripts that
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run under CGI or mod_perl without change. Existing CGI
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scripts may require some changes, simply because a CGI
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script has a very short lifetime of one HTTP request,
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allowing you to get away with "quick and dirty" scripting.
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Using mod_perl and Apache::Registry requires you to be
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more careful, but it also gives new meaning to the work
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"quick"!
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Although it may be all you need, a speedy CGI replacement
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is only a small part of this project. Callback hooks are
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in place for each stage of a request. Apache-Perl modules
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may step in during the handler, header parser, uri
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translate, authentication, authorization, access, type
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check, fixup and logger stages of a request.
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