diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc b/toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc new file mode 100644 index 000000000..fd4e34cd8 --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/common/linux/libcurl_wrapper.cc @@ -0,0 +1,241 @@ +// 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; +} + +LibcurlWrapper::~LibcurlWrapper() {} + +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, + int* http_status_code, + string* http_header_data, + string* http_response_data) { + (*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 (http_response_data != NULL) { + http_response_data->clear(); + (*easy_setopt_)(curl_, CURLOPT_WRITEFUNCTION, WriteCallback); + (*easy_setopt_)(curl_, CURLOPT_WRITEDATA, + reinterpret_cast<void *>(http_response_data)); + } + if (http_header_data != NULL) { + http_header_data->clear(); + (*easy_setopt_)(curl_, CURLOPT_HEADERFUNCTION, WriteCallback); + (*easy_setopt_)(curl_, CURLOPT_HEADERDATA, + reinterpret_cast<void *>(http_header_data)); + } + + CURLcode err_code = CURLE_OK; + err_code = (*easy_perform_)(curl_); + easy_strerror_ = reinterpret_cast<const char* (*)(CURLcode)> + (dlsym(curl_lib_, "curl_easy_strerror")); + + if (http_status_code != NULL) { + (*easy_getinfo_)(curl_, CURLINFO_RESPONSE_CODE, http_status_code); + } + +#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(easy_getinfo_, + "curl_easy_getinfo", + CURLcode(*)(CURL *, CURLINFO info, ...)); + + 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; +} + +} |