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3be94d84fc
Add support for `CURLOPT_CAINFO_BLOB` `CURLOPT_PROXY_CAINFO_BLOB` to the rustls TLS backend. Multiple certificates in a single PEM string are supported just like OpenSSL does with this option. This is compatible at least with rustls-ffi 0.8+ which is our new minimum version anyway. I was able to build and run this on Windows, pulling trusted certs from the system and then add them to rustls by setting `CURLOPT_CAINFO_BLOB`. Handy! Closes #8255
79 lines
3.0 KiB
Groff
79 lines
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 - 2021, 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_PROXY_CAINFO_BLOB 3 "31 March 2021" "libcurl 7.77.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_PROXY_CAINFO_BLOB \- proxy Certificate Authority (CA) bundle in PEM format
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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_PROXY_CAINFO_BLOB,
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struct curl_blob *stblob);
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.fi
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.SH DESCRIPTION
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This option is for connecting to an HTTPS proxy, not an HTTPS server.
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Pass a pointer to a curl_blob structure, which contains information (pointer
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and size) about a memory block with binary data of PEM encoded content holding
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one or more certificates to verify the HTTPS proxy with.
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If \fICURLOPT_PROXY_SSL_VERIFYPEER(3)\fP is zero and you avoid verifying the
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server's certificate, \fICURLOPT_PROXY_CAINFO_BLOB(3)\fP is not needed.
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This option overrides \fICURLOPT_PROXY_CAINFO(3)\fP.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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Used with HTTPS proxy
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.SH EXAMPLE
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.nf
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char *strpem; /* strpem must point to a PEM string */
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CURL *curl = curl_easy_init();
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if(curl) {
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struct curl_blob blob;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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/* using an HTTPS proxy */
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curl_easy_setopt(curl, CURLOPT_PROXY, "https://localhost:443");
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blob.data = strpem;
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blob.len = strlen(strpem);
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blob.flags = CURL_BLOB_COPY;
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curl_easy_setopt(curl, CURLOPT_PROXY_CAINFO_BLOB, &blob);
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ret = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.77.0.
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This option is supported by the rustls (since 7.82.0), OpenSSL, Secure
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Transport and Schannel backends.
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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 CURLOPT_PROXY_CAINFO "(3), " CURLOPT_PROXY_CAPATH "(3), "
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.BR CURLOPT_PROXY_SSL_VERIFYPEER "(3), " CURLOPT_PROXY_SSL_VERIFYHOST "(3), "
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.BR CURLOPT_CAINFO "(3), " CURLOPT_CAINFO_BLOB "(3), "
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.BR CURLOPT_CAPATH "(3), "
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.BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_SSL_VERIFYHOST "(3), "
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