/
usr
/
lib64
/
erlang
/
lib
/
inets-7.5.3
/
src
/
http_server
/
File Upload :
llllll
Current File: //usr/lib64/erlang/lib/inets-7.5.3/src/http_server/httpd_cgi.erl
%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2005-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. %% You may obtain a copy of the License at %% %% http://www.apache.org/licenses/LICENSE-2.0 %% %% Unless required by applicable law or agreed to in writing, software %% distributed under the License is distributed on an "AS IS" BASIS, %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. %% %% %CopyrightEnd% %% %% -module(httpd_cgi). -export([parse_headers/1, handle_headers/1]). -include_lib("inets/src/inets_app/inets_internal.hrl"). %%%========================================================================= %%% Internal application API %%%========================================================================= %%-------------------------------------------------------------------------- %% parse_headers([Bin, Data, Header, Headers]) -> {RevHeaders, Body} | %% {Module, Function, Args} %% Bin = Data = binary() %% Header = string() - Accumulator should be [] in first call %% Headers = [Header] - Accumulator should be [] in first call %% Body = string() %% RevHeaders = string() - Note CGI-headers not HTTP-headers %% %% Description: Parses "<<Bin/binary, Data/binary>>" returned from the %% CGI-script until it findes the end of the CGI-headers (at least one %% CGI-HeaderField must be supplied) then it returns the CGI-headers %% and maybe some body data. If {Module, Function, Args} is %% returned it means that more data needs to be collected from the %% cgi-script as the end of the headers was not yet found. When more %% data has been collected call Module:Function([NewData | Args]). %% %% NOTE: The headers are backwards and should %% be so, devide_and_reverse_headers will reverse them back after %% taking advantage of the fact that they where backwards. %%-------------------------------------------------------------------------- parse_headers([Data, Bin, Header, Headers]) -> parse_headers(<<Bin/binary, Data/binary>>, Header, Headers). %%-------------------------------------------------------------------------- %% handle_headers(CGIHeaders) -> {ok, HTTPHeaders, StatusCode} | %% {proceed, AbsPath} %% CGIHeaders = [string()] %% HTTPHeaders = [{HeaderField, HeaderValue}] %% HeaderField = string() %% HeaderValue = string() %% StatusCode = integer() %% %% Description: Interprets CGI headers and creates HTTP headers and a %% appropriate HTTP status code. Note if a CGI location header is present %% the return value will be {proceed, AbsPath} %%-------------------------------------------------------------------------- handle_headers(CGIHeaders) -> handle_headers(CGIHeaders, [], {200, "ok"}). %%%======================================================================== %%% Internal functions %%%======================================================================== parse_headers(<<>>, Header, Headers) -> {?MODULE, parse_headers, [<<>>, Header, Headers]}; parse_headers(<<?CR,?LF>>, Header, Headers) -> {?MODULE, parse_headers, [<<?CR,?LF>>, Header, Headers]}; parse_headers(<<?LF>>, Header, Headers) -> {?MODULE, parse_headers, [<<?LF>>, Header, Headers]}; parse_headers(<<?CR, ?LF, ?CR, ?LF, Rest/binary>>, Header, Headers) -> {ok, {[lists:reverse([?LF, ?CR | Header]) | Headers], Rest}}; parse_headers(<<?LF, ?LF, Rest/binary>>, Header, Headers) -> {ok, {[lists:reverse([?LF | Header]) | Headers], Rest}}; parse_headers(<<?CR, ?LF, Rest/binary>>, Header, Headers) -> parse_headers(Rest, [], [lists:reverse([?LF, ?CR | Header]) | Headers]); parse_headers(<<?LF, Rest/binary>>, Header, Headers) -> parse_headers(Rest, [], [lists:reverse([?LF | Header]) | Headers]); parse_headers(<<Octet, Rest/binary>>, Header, Headers) -> parse_headers(Rest, [Octet | Header], Headers). handle_headers([], HTTPHeaders, Status) -> {ok, HTTPHeaders, Status}; handle_headers([CGIHeader | CGIHeaders], HTTPHeaders, Status) -> {FieldName, FieldValue} = httpd_response:split_header(CGIHeader, []), case FieldName of "content-type" -> handle_headers(CGIHeaders, [{FieldName, FieldValue} | HTTPHeaders], Status); "location" -> case http_request:is_absolut_uri(FieldValue) of true -> handle_headers(CGIHeaders, [{FieldName, FieldValue} | HTTPHeaders], {302, "Redirect"}); false -> {proceed, FieldValue} end; "status" -> CodePhrase = case httpd_util:split(FieldValue," ",2) of {ok,[Code, Phrase]} -> {list_to_integer(Code), Phrase}; _ -> {200, "OK"} end, handle_headers(CGIHeaders, HTTPHeaders, CodePhrase); _ -> %% Extension headers handle_headers(CGIHeaders, [{FieldName, FieldValue} | HTTPHeaders], Status) end.
Copyright ©2k19 -
Hexid
|
Tex7ure