2 * Copyright (C) 2016 Robin Gareus <robin@gareus.org>
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 //#define ARDOURCURLDEBUG
28 #include "pbd/compose.h"
30 #include "pbd/error.h"
32 #include "ardour_http.h"
35 #include "gtk2ardour-version.h"
38 #ifndef ARDOUR_CURL_TIMEOUT
39 #define ARDOUR_CURL_TIMEOUT (60)
42 #ifdef ARDOURCURLDEBUG
43 #define CCERR(msg) do { if (cc != CURLE_OK) { std::cerr << string_compose ("curl_easy_setopt(%1) failed: %2", msg, cc) << std::endl; } } while (0)
48 using namespace ArdourCurl;
50 const char* HttpGet::ca_path = NULL;
51 const char* HttpGet::ca_info = NULL;
54 HttpGet::setup_certificate_paths ()
56 /* this is only needed for Linux Bundles.
57 * (on OSX, Windows, we use system-wide ssl (darwinssl, winssl)
58 * Gnu/Linux distro will link against system-wide libcurl.
60 * but for linux-bundles we get to enjoy:
61 * https://www.happyassassin.net/2015/01/12/a-note-about-ssltls-trusted-certificate-stores-and-platforms/
63 * (we do ship curl + nss + nss-pem)
65 * Short of this mess: we could simply bundle a .crt of
66 * COMODO (ardour) and ghandi (freesound) and be done with it.
68 assert (!ca_path && !ca_info); // call once
70 if (Glib::file_test ("/etc/pki/tls/certs/ca-bundle.crt", Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
71 // Fedora / RHEL, Arch
72 ca_info = "/etc/pki/tls/certs/ca-bundle.crt";
74 else if (Glib::file_test ("/etc/ssl/certs/ca-certificates.crt", Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
75 // Debian and derivatives
76 ca_info = "/etc/ssl/certs/ca-certificates.crt";
78 else if (Glib::file_test ("/etc/pki/tls/cert.pem", Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
79 // GNU/TLS can keep extra stuff here
80 ca_info = "/etc/pki/tls/cert.pem";
82 // else NULL: use default (currently) "/etc/ssl/certs/ca-certificates.crt" if it exists
84 if (Glib::file_test ("/etc/pki/tls/certs/ca-bundle.crt", Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_DIR)) {
85 // we're on RHEL // https://bugzilla.redhat.com/show_bug.cgi?id=1053882
86 ca_path = "/nonexistent_path"; // don't try "/etc/ssl/certs" in case it's curl's default
88 else if (Glib::file_test ("/etc/ssl/certs", Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_DIR)) {
89 // Debian and derivs + OpenSuSe
90 ca_path = "/etc/ssl/certs";
92 ca_path = "/nonexistent_path"; // don't try -- just in case:
95 /* If we don't set anything defaults are used. at the time of writing we compile bundled curl on debian
96 * and it'll default to /etc/ssl/certs and /etc/ssl/certs/ca-certificates.crt
101 WriteMemoryCallback (void *ptr, size_t size, size_t nmemb, void *data) {
102 size_t realsize = size * nmemb;
103 struct HttpGet::MemStruct *mem = (struct HttpGet::MemStruct*)data;
105 mem->data = (char *)realloc (mem->data, mem->size + realsize + 1);
107 memcpy (&(mem->data[mem->size]), ptr, realsize);
108 mem->size += realsize;
109 mem->data[mem->size] = 0;
114 static size_t headerCallback (char* ptr, size_t size, size_t nmemb, void* data)
116 size_t realsize = size * nmemb;
117 #ifdef ARDOURCURLDEBUG
118 std::cerr << string_compose ("ArdourCurl HTTP-header recv %1 bytes", realsize) << std::endl;
120 struct HttpGet::HeaderInfo *nfo = (struct HttpGet::HeaderInfo*)data;
121 std::string header (static_cast<const char*>(ptr), realsize);
122 std::string::size_type index = header.find (':', 0);
123 if (index != std::string::npos) {
124 std::string k = header.substr (0, index);
125 std::string v = header.substr (index + 2);
126 k.erase(k.find_last_not_of (" \n\r\t")+1);
127 v.erase(v.find_last_not_of (" \n\r\t")+1);
129 #ifdef ARDOURCURLDEBUG
130 std::cerr << string_compose ("ArdourCurl HTTP-header '%1' = '%2'", k, v) << std::endl;
137 HttpGet::HttpGet (bool p, bool ssl)
143 _curl = curl_easy_init ();
146 std::cerr << "HttpGet::HttpGet curl_easy_init() failed." << std::endl;
152 cc = curl_easy_setopt (_curl, CURLOPT_WRITEDATA, (void *)&mem); CCERR ("CURLOPT_WRITEDATA");
153 cc = curl_easy_setopt (_curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); CCERR ("CURLOPT_WRITEFUNCTION");
154 cc = curl_easy_setopt (_curl, CURLOPT_HEADERDATA, (void *)&nfo); CCERR ("CURLOPT_HEADERDATA");
155 cc = curl_easy_setopt (_curl, CURLOPT_HEADERFUNCTION, headerCallback); CCERR ("CURLOPT_HEADERFUNCTION");
156 cc = curl_easy_setopt (_curl, CURLOPT_USERAGENT, PROGRAM_NAME VERSIONSTRING); CCERR ("CURLOPT_USERAGENT");
157 cc = curl_easy_setopt (_curl, CURLOPT_TIMEOUT, ARDOUR_CURL_TIMEOUT); CCERR ("CURLOPT_TIMEOUT");
158 cc = curl_easy_setopt (_curl, CURLOPT_NOSIGNAL, 1); CCERR ("CURLOPT_NOSIGNAL");
159 cc = curl_easy_setopt (_curl, CURLOPT_ERRORBUFFER, error_buffer); CCERR ("CURLOPT_ERRORBUFFER");
160 // cc= curl_easy_setopt (_curl, CURLOPT_FOLLOWLOCATION, 1); CCERR ("CURLOPT_FOLLOWLOCATION");
162 // by default use curl's default.
163 if (ssl && ca_info) {
164 curl_easy_setopt (_curl, CURLOPT_CAINFO, ca_info);
166 if (ssl && ca_path) {
167 curl_easy_setopt (_curl, CURLOPT_CAPATH, ca_path);
174 curl_easy_cleanup (_curl);
182 HttpGet::get (const char* url, bool with_error_logging)
184 #ifdef ARDOURCURLDEBUG
185 std::cerr << "HttpGet::get() ---- new request ---"<< std::endl;
187 _status = _result = -1;
188 if (!_curl || !url) {
189 if (with_error_logging) {
190 PBD::error << "HttpGet::get() not initialized (or NULL url)"<< endmsg;
192 #ifdef ARDOURCURLDEBUG
193 std::cerr << "HttpGet::get() not initialized (or NULL url)"<< std::endl;
198 if (strncmp ("http://", url, 7) && strncmp ("https://", url, 8)) {
199 if (with_error_logging) {
200 PBD::error << "HttpGet::get() not a http[s] URL"<< endmsg;
202 #ifdef ARDOURCURLDEBUG
203 std::cerr << "HttpGet::get() not a http[s] URL"<< std::endl;
210 } // otherwise caller is expected to have free()d or re-used it.
218 cc = curl_easy_setopt (_curl, CURLOPT_URL, url);
219 CCERR ("CURLOPT_URL");
220 _result = curl_easy_perform (_curl);
221 cc = curl_easy_getinfo (_curl, CURLINFO_RESPONSE_CODE, &_status);
222 CCERR ("CURLINFO_RESPONSE_CODE,");
225 if (with_error_logging) {
226 PBD::error << string_compose (_("HTTP request failed: (%1) %2"), _result, error_buffer) << endmsg;
228 #ifdef ARDOURCURLDEBUG
229 std::cerr << string_compose (_("HTTP request failed: (%1) %2"), _result, error_buffer) << std::endl;
233 if (_status != 200) {
234 if (with_error_logging) {
235 PBD::error << string_compose (_("HTTP request status: %1"), _status) << endmsg;
237 #ifdef ARDOURCURLDEBUG
238 std::cerr << string_compose (_("HTTP request status: %1"), _status) << std::endl;
247 HttpGet::error () const {
249 return string_compose (_("HTTP request failed: (%1) %2"), _result, error_buffer);
251 if (_status != 200) {
252 return string_compose (_("HTTP request status: %1"), _status);
258 ArdourCurl::http_get (const char* url, int* status, bool with_error_logging) {
260 char* rv = h.get (url, with_error_logging);
262 *status = h.status ();
268 ArdourCurl::http_get (const std::string& url, bool with_error_logging) {
269 return HttpGet (false).get (url, with_error_logging);