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

toolkit/crashreporter/google-breakpad/src/common/linux/http_upload.cc@6474c204b198 (annotated)

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

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // Copyright (c) 2006, 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 "common/linux/http_upload.h"
 #include <assert.h>
 #include <dlfcn.h>
 #include "third_party/curl/curl.h"
 namespace {
 // 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;
 }
 }  // namespace
 namespace google_breakpad {
 static const char kUserAgent[] = "Breakpad/1.0 (Linux)";
 // static
 bool HTTPUpload::SendRequest(const string &url,
                              const map<string, string> &parameters,
                              const string &upload_file,
                              const string &file_part_name,
                              const string &proxy,
                              const string &proxy_user_pwd,
                              const string &ca_certificate_file,
                              string *response_body,
                              long *response_code,
                              string *error_description) {
   if (response_code != NULL)
     *response_code = 0;
   if (!CheckParameters(parameters))
     return false;
   void *curl_lib = dlopen("libcurl.so", RTLD_NOW);
   if (!curl_lib) {
     if (error_description != NULL)
       *error_description = dlerror();
     curl_lib = dlopen("libcurl.so.4", RTLD_NOW);
   }
   if (!curl_lib) {
     // Debian gives libcurl a different name when it is built against GnuTLS
     // instead of OpenSSL.
     curl_lib = dlopen("libcurl-gnutls.so.4", RTLD_NOW);
   }
   if (!curl_lib) {
     curl_lib = dlopen("libcurl.so.3", RTLD_NOW);
   }
   if (!curl_lib) {
     return false;
   }
   CURL* (*curl_easy_init)(void);
   *(void**) (&curl_easy_init) = dlsym(curl_lib, "curl_easy_init");
   CURL *curl = (*curl_easy_init)();
   if (error_description != NULL)
     *error_description = "No Error";
   if (!curl) {
     dlclose(curl_lib);
     return false;
   }
   CURLcode err_code = CURLE_OK;
   CURLcode (*curl_easy_setopt)(CURL *, CURLoption, ...);
   *(void**) (&curl_easy_setopt) = dlsym(curl_lib, "curl_easy_setopt");
   (*curl_easy_setopt)(curl, CURLOPT_URL, url.c_str());
   (*curl_easy_setopt)(curl, CURLOPT_USERAGENT, kUserAgent);
   // Set proxy information if necessary.
   if (!proxy.empty())
     (*curl_easy_setopt)(curl, CURLOPT_PROXY, proxy.c_str());
   if (!proxy_user_pwd.empty())
     (*curl_easy_setopt)(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());
   if (!ca_certificate_file.empty())
     (*curl_easy_setopt)(curl, CURLOPT_CAINFO, ca_certificate_file.c_str());
   struct curl_httppost *formpost = NULL;
   struct curl_httppost *lastptr = NULL;
   // Add form data.
   CURLFORMcode (*curl_formadd)(struct curl_httppost **, struct curl_httppost **, ...);
   *(void**) (&curl_formadd) = dlsym(curl_lib, "curl_formadd");
   map<string, string>::const_iterator iter = parameters.begin();
   for (; iter != parameters.end(); ++iter)
     (*curl_formadd)(&formpost, &lastptr,
                  CURLFORM_COPYNAME, iter->first.c_str(),
                  CURLFORM_COPYCONTENTS, iter->second.c_str(),
                  CURLFORM_END);
   // Add form file.
   (*curl_formadd)(&formpost, &lastptr,
                CURLFORM_COPYNAME, file_part_name.c_str(),
                CURLFORM_FILE, upload_file.c_str(),
                CURLFORM_END);
   (*curl_easy_setopt)(curl, CURLOPT_HTTPPOST, formpost);
   // Disable 100-continue header.
   struct curl_slist *headerlist = NULL;
   char buf[] = "Expect:";
   struct curl_slist* (*curl_slist_append)(struct curl_slist *, const char *);
   *(void**) (&curl_slist_append) = dlsym(curl_lib, "curl_slist_append");
   headerlist = (*curl_slist_append)(headerlist, buf);
   (*curl_easy_setopt)(curl, CURLOPT_HTTPHEADER, headerlist);
   if (response_body != NULL) {
     (*curl_easy_setopt)(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
     (*curl_easy_setopt)(curl, CURLOPT_WRITEDATA,
                      reinterpret_cast<void *>(response_body));
   }
   // Fail if 400+ is returned from the web server.
   (*curl_easy_setopt)(curl, CURLOPT_FAILONERROR, 1);
   CURLcode (*curl_easy_perform)(CURL *);
   *(void**) (&curl_easy_perform) = dlsym(curl_lib, "curl_easy_perform");
   err_code = (*curl_easy_perform)(curl);
   if (response_code != NULL) {
     CURLcode (*curl_easy_getinfo)(CURL *, CURLINFO, ...);
     *(void**) (&curl_easy_getinfo) = dlsym(curl_lib, "curl_easy_getinfo");
     (*curl_easy_getinfo)(curl, CURLINFO_RESPONSE_CODE, response_code);
   }
   const char* (*curl_easy_strerror)(CURLcode);
   *(void**) (&curl_easy_strerror) = 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(),
             (*curl_easy_strerror)(err_code));
 #endif
   if (error_description != NULL)
     *error_description = (*curl_easy_strerror)(err_code);
   void (*curl_easy_cleanup)(CURL *);
   *(void**) (&curl_easy_cleanup) = dlsym(curl_lib, "curl_easy_cleanup");
   (*curl_easy_cleanup)(curl);
   if (formpost != NULL) {
     void (*curl_formfree)(struct curl_httppost *);
     *(void**) (&curl_formfree) = dlsym(curl_lib, "curl_formfree");
     (*curl_formfree)(formpost);
   }
   if (headerlist != NULL) {
     void (*curl_slist_free_all)(struct curl_slist *);
     *(void**) (&curl_slist_free_all) = dlsym(curl_lib, "curl_slist_free_all");
     (*curl_slist_free_all)(headerlist);
   }
   dlclose(curl_lib);
   return err_code == CURLE_OK;
 }
 // static
 bool HTTPUpload::CheckParameters(const map<string, string> &parameters) {
   for (map<string, string>::const_iterator pos = parameters.begin();
        pos != parameters.end(); ++pos) {
     const string &str = pos->first;
     if (str.size() == 0)
       return false;  // disallow empty parameter names
     for (unsigned int i = 0; i < str.size(); ++i) {
       int c = str[i];
       if (c < 32 || c == '"' || c > 127) {
         return false;
       }
     }
   }
   return true;
 }
 }  // namespace google_breakpad

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/linux/http_upload.cc@6474c204b198 (annotated)

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