1Catalyst::Engine(3) User Contributed Perl Documentation Catalyst::Engine(3)
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6 Catalyst::Engine - The Catalyst Engine
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9 See Catalyst.
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13 $self->finalize_body($c)
14 Finalize body. Prints the response output.
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16 $self->finalize_cookies($c)
17 Create CGI::Simple::Cookie objects from $c->res->cookies, and set them
18 as response headers.
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20 $self->finalize_error($c)
21 Output an appropriate error message. Called if there's an error in $c
22 after the dispatch has finished. Will output debug messages if Catalyst
23 is in debug mode, or a `please come back later` message otherwise.
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25 $self->finalize_headers($c)
26 Abstract method, allows engines to write headers to response
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28 $self->finalize_read($c)
29 $self->finalize_uploads($c)
30 Clean up after uploads, deleting temp files.
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32 $self->prepare_body($c)
33 sets up the Catalyst::Request object body using HTTP::Body
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35 $self->prepare_body_chunk($c)
36 Add a chunk to the request body.
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38 $self->prepare_body_parameters($c)
39 Sets up parameters from body.
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41 $self->prepare_connection($c)
42 Abstract method implemented in engines.
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44 $self->prepare_cookies($c)
45 Parse cookies from header. Sets a CGI::Simple::Cookie object.
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47 $self->prepare_headers($c)
48 $self->prepare_parameters($c)
49 sets up parameters from query and post parameters.
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51 $self->prepare_path($c)
52 abstract method, implemented by engines.
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54 $self->prepare_request($c)
55 $self->prepare_query_parameters($c)
56 process the query string and extract query parameters.
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58 $self->prepare_read($c)
59 prepare to read from the engine.
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61 $self->prepare_request(@arguments)
62 Populate the context object from the request object.
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64 $self->prepare_uploads($c)
65 $self->prepare_write($c)
66 Abstract method. Implemented by the engines.
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68 $self->read($c, [$maxlength])
69 Reads from the input stream by calling "$self->read_chunk".
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71 Maintains the read_length and read_position counters as data is read.
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73 $self->read_chunk($c, $buffer, $length)
74 Each engine implements read_chunk as its preferred way of reading a
75 chunk of data. Returns the number of bytes read. A return of 0
76 indicates that there is no more data to be read.
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78 $self->read_length
79 The length of input data to be read. This is obtained from the
80 Content-Length header.
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82 $self->read_position
83 The amount of input data that has already been read.
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85 $self->run($c)
86 Start the engine. Implemented by the various engine classes.
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88 $self->write($c, $buffer)
89 Writes the buffer to the client.
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91 $self->unescape_uri($uri)
92 Unescapes a given URI using the most efficient method available.
93 Engines such as Apache may implement this using Apache's C-based
94 modules, for example.
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96 $self->finalize_output
97 <obsolete>, see finalize_body
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99 $self->env
100 Hash containing environment variables including many special variables
101 inserted by WWW server - like SERVER_*, REMOTE_*, HTTP_* ...
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103 Before accessing environment variables consider whether the same
104 information is not directly available via Catalyst objects $c->request,
105 $c->engine ...
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107 BEWARE: If you really need to access some environment variable from
108 your Catalyst application you should use $c->engine->env->{VARNAME}
109 instead of $ENV{VARNAME}, as in some enviroments the %ENV hash does not
110 contain what you would expect.
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113 Catalyst Contributors, see Catalyst.pm
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116 This library is free software. You can redistribute it and/or modify it
117 under the same terms as Perl itself.
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121perl v5.12.1 2010-07-28 Catalyst::Engine(3)