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75 строки
3.0 KiB
Groff
75 строки
3.0 KiB
Groff
.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_POSTREDIR 3 "December 31, 2020" "libcurl 7.83.1" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_POSTREDIR \- how to act on an HTTP POST redirect
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
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long bitmask);
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.SH DESCRIPTION
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Pass a bitmask to control how libcurl acts on redirects after POSTs that get a
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301, 302 or 303 response back. A parameter with bit 0 set (value
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\fBCURL_REDIR_POST_301\fP) tells the library to respect RFC 7231 (section
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6.4.2 to 6.4.4) and not convert POST requests into GET requests when following
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a 301 redirection. Setting bit 1 (value \fBCURL_REDIR_POST_302\fP) makes
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libcurl maintain the request method after a 302 redirect whilst setting bit 2
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(value \fBCURL_REDIR_POST_303\fP) makes libcurl maintain the request method
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after a 303 redirect. The value \fBCURL_REDIR_POST_ALL\fP is a convenience
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define that sets all three bits.
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The non-RFC behavior is ubiquitous in web browsers, so the library does the
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conversion by default to maintain consistency. However, a server may require a
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POST to remain a POST after such a redirection. This option is meaningful only
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when setting \fICURLOPT_FOLLOWLOCATION(3)\fP.
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.SH DEFAULT
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0
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.SH PROTOCOLS
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HTTP(S)
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* a silly POST example */
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curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "data=true");
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/* example.com is redirected, so we tell libcurl to send POST on 301, 302 and
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303 HTTP response codes */
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curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
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curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.17.1. This option was known as CURLOPT_POST301 up to 7.19.0 as it
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only supported the 301 then. CURL_REDIR_POST_303 was added in 7.26.0.
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR CURLOPT_FOLLOWLOCATION "(3), " CURLOPT_POSTFIELDS "(3), "
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