132 lines
4.7 KiB
Groff
132 lines
4.7 KiB
Groff
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.\" **************************************************************************
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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) 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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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_COOKIELIST 3 "19 Jun 2014" libcurl libcurl
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.SH NAME
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CURLOPT_COOKIELIST \- add to or manipulate cookies held in memory
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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_COOKIELIST,
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char *cookie);
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.SH DESCRIPTION
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Pass a char * to a \fIcookie\fP string.
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Such a cookie can be either a single line in Netscape / Mozilla format or just
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regular HTTP-style header (Set-Cookie: ...) format. This option also enables
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the cookie engine. This adds that single cookie to the internal cookie store.
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We strongly advice against loading cookies from a HTTP header file, as that is
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an inferior data exchange format.
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Exercise caution if you are using this option and multiple transfers may
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occur. If you use the Set-Cookie format and the string does not specify a
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domain, then the cookie is sent for any domain (even after redirects are
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followed) and cannot be modified by a server-set cookie. If a server sets a
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cookie of the same name (or maybe you have imported one) then both are sent on
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future transfers to that server, likely not what you intended. To address
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these issues set a domain in Set-Cookie (doing that includes subdomains) or
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much better: use the Netscape file format.
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Additionally, there are commands available that perform actions if you pass in
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these exact strings:
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.IP ALL
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erases all cookies held in memory
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.IP SESS
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erases all session cookies held in memory
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.IP FLUSH
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writes all known cookies to the file specified by \fICURLOPT_COOKIEJAR(3)\fP
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.IP RELOAD
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loads all cookies from the files specified by \fICURLOPT_COOKIEFILE(3)\fP
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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HTTP
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.SH EXAMPLE
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.nf
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/* an inline import of a cookie in Netscape format. */
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#define SEP "\\t" /* Tab separates the fields */
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int main(void)
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{
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char *my_cookie =
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"example.com" /* Hostname */
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SEP "FALSE" /* Include subdomains */
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SEP "/" /* Path */
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SEP "FALSE" /* Secure */
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SEP "0" /* Expiry in epoch time format. 0 == Session */
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SEP "foo" /* Name */
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SEP "bar"; /* Value */
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CURL *curl = curl_easy_init();
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if(curl) {
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/* my_cookie is imported immediately via CURLOPT_COOKIELIST. */
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curl_easy_setopt(curl, CURLOPT_COOKIELIST, my_cookie);
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/* The list of cookies in cookies.txt are not be imported until right
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before a transfer is performed. Cookies in the list that have the same
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hostname, path and name as in my_cookie are skipped. That is because
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libcurl has already imported my_cookie and it's considered a "live"
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cookie. A live cookie is not replaced by one read from a file.
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*/
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curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "cookies.txt"); /* import */
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/* Cookies are exported after curl_easy_cleanup is called. The server
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may have added, deleted or modified cookies by then. The cookies that
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were skipped on import are not exported.
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*/
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curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookies.txt"); /* export */
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curl_easy_perform(curl); /* cookies imported from cookies.txt */
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curl_easy_cleanup(curl); /* cookies exported to cookies.txt */
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}
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}
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.fi
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.SH "Cookie file format"
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The cookie file format and general cookie concepts in curl are described
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online here: https://curl.se/docs/http-cookies.html
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.SH AVAILABILITY
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\fBALL\fP was added in 7.14.1
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\fBSESS\fP was added in 7.15.4
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\fBFLUSH\fP was added in 7.17.1
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\fBRELOAD\fP was added in 7.39.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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.SH "SEE ALSO"
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.BR CURLINFO_COOKIELIST (3),
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.BR CURLOPT_COOKIE (3),
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.BR CURLOPT_COOKIEFILE (3),
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.BR CURLOPT_COOKIEJAR (3)
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