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58 lines
2.5 KiB
C
58 lines
2.5 KiB
C
/* curl_util.h
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*
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*
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* Copyright (C) 2016 Toxic All Rights Reserved.
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*
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* This file is part of Toxic.
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*
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* Toxic is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Toxic is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Toxic. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef CURL_UTIL_H
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#define CURL_UTIL_H
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#include <stdint.h>
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/* List based on Mozilla's recommended configurations for modern browsers */
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#define TLS_CIPHER_SUITE_LIST "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK"
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/* Max size of an http response that we can store in Recv_Data */
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#define MAX_RECV_CURL_DATA_SIZE 32767
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/* Holds data received from curl lookup */
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struct Recv_Curl_Data {
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char data[MAX_RECV_CURL_DATA_SIZE + 1]; /* Data received from curl write data callback */
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size_t length; /* Total number of bytes written to data buffer (doesn't include null) */
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};
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/* Sets proxy info for given CURL handler.
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*
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* Returns 0 on success or if no proxy is set by the client.
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* Returns -1 if proxy info is invalid.
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* Returns an int > 0 on curl error (see: https://curl.haxx.se/libcurl/c/libcurl-errors.html)
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*/
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int set_curl_proxy(CURL *c_handle, const char *proxy_address, uint16_t port, uint8_t proxy_type);
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/* Callback function for CURL to write received data.
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*
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* This function will append data from an http request to the data buffer
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* until the request is complete or the buffer is full. Buffer will be null terminated.
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*
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* Returns size of bytes written to the data buffer.
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*/
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size_t curl_cb_write_data(void *data, size_t size, size_t nmemb, void *user_pointer);
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#endif /* CURL_UTIL_H */
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