The Tor Browser: comparison toolkit/crashreporter/google-breakpad/src/common/linux/libcurl

--1:000000000000
+:db009dad747c
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#include <dlfcn.h>
+#include <iostream>
+#include <string>
+#include "common/linux/libcurl_wrapper.h"
+#include "common/using_std_string.h"
+namespace google_breakpad {
+LibcurlWrapper::LibcurlWrapper()
+: init_ok_(false),
+formpost_(NULL),
+lastptr_(NULL),
+headerlist_(NULL) {
+curl_lib_ = dlopen("libcurl.so", RTLD_NOW);
+if (!curl_lib_) {
+curl_lib_ = dlopen("libcurl.so.4", RTLD_NOW);
+}
+if (!curl_lib_) {
+curl_lib_ = dlopen("libcurl.so.3", RTLD_NOW);
+}
+if (!curl_lib_) {
+std::cout << "Could not find libcurl via dlopen";
+return;
+}
+std::cout << "LibcurlWrapper init succeeded";
+init_ok_ = true;
+return;
+}
+bool LibcurlWrapper::SetProxy(const string& proxy_host,
+const string& proxy_userpwd) {
+if (!init_ok_) {
+return false;
+}
+// Set proxy information if necessary.
+if (!proxy_host.empty()) {
+(*easy_setopt_)(curl_, CURLOPT_PROXY, proxy_host.c_str());
+} else {
+std::cout << "SetProxy called with empty proxy host.";
+return false;
+}
+if (!proxy_userpwd.empty()) {
+(*easy_setopt_)(curl_, CURLOPT_PROXYUSERPWD, proxy_userpwd.c_str());
+} else {
+std::cout << "SetProxy called with empty proxy username/password.";
+return false;
+}
+std::cout << "Set proxy host to " << proxy_host;
+return true;
+}
+bool LibcurlWrapper::AddFile(const string& upload_file_path,
+const string& basename) {
+if (!init_ok_) {
+return false;
+}
+std::cout << "Adding " << upload_file_path << " to form upload.";
+// Add form file.
+(*formadd_)(&formpost_, &lastptr_,
+CURLFORM_COPYNAME, basename.c_str(),
+CURLFORM_FILE, upload_file_path.c_str(),
+CURLFORM_END);
+return true;
+}
+// Callback to get the response data from server.
+static size_t WriteCallback(void *ptr, size_t size,
+size_t nmemb, void *userp) {
+if (!userp)
+return 0;
+string *response = reinterpret_cast<string *>(userp);
+size_t real_size = size * nmemb;
+response->append(reinterpret_cast<char *>(ptr), real_size);
+return real_size;
+}
+bool LibcurlWrapper::SendRequest(const string& url,
+const std::map<string, string>& parameters,
+string* server_response) {
+(*easy_setopt_)(curl_, CURLOPT_URL, url.c_str());
+std::map<string, string>::const_iterator iter = parameters.begin();
+for (; iter != parameters.end(); ++iter)
+(*formadd_)(&formpost_, &lastptr_,
+CURLFORM_COPYNAME, iter->first.c_str(),
+CURLFORM_COPYCONTENTS, iter->second.c_str(),
+CURLFORM_END);
+(*easy_setopt_)(curl_, CURLOPT_HTTPPOST, formpost_);
+if (server_response != NULL) {
+(*easy_setopt_)(curl_, CURLOPT_WRITEFUNCTION, WriteCallback);
+(*easy_setopt_)(curl_, CURLOPT_WRITEDATA,
+reinterpret_cast<void *>(server_response));
+}
+CURLcode err_code = CURLE_OK;
+err_code = (*easy_perform_)(curl_);
+easy_strerror_ = reinterpret_cast<const char* (*)(CURLcode)>
+(dlsym(curl_lib_, "curl_easy_strerror"));
+#ifndef NDEBUG
+if (err_code != CURLE_OK)
+fprintf(stderr, "Failed to send http request to %s, error: %s\n",
+url.c_str(),
+(*easy_strerror_)(err_code));
+#endif
+if (headerlist_ != NULL) {
+(*slist_free_all_)(headerlist_);
+}
+(*easy_cleanup_)(curl_);
+if (formpost_ != NULL) {
+(*formfree_)(formpost_);
+}
+return err_code == CURLE_OK;
+}
+bool LibcurlWrapper::Init() {
+if (!init_ok_) {
+std::cout << "Init_OK was not true in LibcurlWrapper::Init(), check earlier log messages";
+return false;
+}
+if (!SetFunctionPointers()) {
+std::cout << "Could not find function pointers";
+init_ok_ = false;
+return false;
+}
+curl_ = (*easy_init_)();
+last_curl_error_ = "No Error";
+if (!curl_) {
+dlclose(curl_lib_);
+std::cout << "Curl initialization failed";
+return false;
+}
+// Disable 100-continue header.
+char buf[] = "Expect:";
+headerlist_ = (*slist_append_)(headerlist_, buf);
+(*easy_setopt_)(curl_, CURLOPT_HTTPHEADER, headerlist_);
+return true;
+}
+#define SET_AND_CHECK_FUNCTION_POINTER(var, function_name, type) \
+var = reinterpret_cast<type>(dlsym(curl_lib_, function_name)); \
+if (!var) { \
+std::cout << "Could not find libcurl function " << function_name; \
+init_ok_ = false; \
+return false; \
+}
+bool LibcurlWrapper::SetFunctionPointers() {
+SET_AND_CHECK_FUNCTION_POINTER(easy_init_,
+"curl_easy_init",
+CURL*(*)());
+SET_AND_CHECK_FUNCTION_POINTER(easy_setopt_,
+"curl_easy_setopt",
+CURLcode(*)(CURL*, CURLoption, ...));
+SET_AND_CHECK_FUNCTION_POINTER(formadd_, "curl_formadd",
+CURLFORMcode(*)(curl_httppost**, curl_httppost**, ...));
+SET_AND_CHECK_FUNCTION_POINTER(slist_append_, "curl_slist_append",
+curl_slist*(*)(curl_slist*, const char*));
+SET_AND_CHECK_FUNCTION_POINTER(easy_perform_,
+"curl_easy_perform",
+CURLcode(*)(CURL*));
+SET_AND_CHECK_FUNCTION_POINTER(easy_cleanup_,
+"curl_easy_cleanup",
+void(*)(CURL*));
+SET_AND_CHECK_FUNCTION_POINTER(slist_free_all_,
+"curl_slist_free_all",
+void(*)(curl_slist*));
+SET_AND_CHECK_FUNCTION_POINTER(formfree_,
+"curl_formfree",
+void(*)(curl_httppost*));
+return true;
+}
+}

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comparison: toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc

toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc