LCOV - code coverage report
Current view: directory - toolkit/crashreporter/google-breakpad/src/common/linux - http_upload.cc (source / functions) Found Hit Coverage
Test: app.info Lines: 84 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : // Copyright (c) 2006, Google Inc.
       2                 : // All rights reserved.
       3                 : //
       4                 : // Redistribution and use in source and binary forms, with or without
       5                 : // modification, are permitted provided that the following conditions are
       6                 : // met:
       7                 : //
       8                 : //     * Redistributions of source code must retain the above copyright
       9                 : // notice, this list of conditions and the following disclaimer.
      10                 : //     * Redistributions in binary form must reproduce the above
      11                 : // copyright notice, this list of conditions and the following disclaimer
      12                 : // in the documentation and/or other materials provided with the
      13                 : // distribution.
      14                 : //     * Neither the name of Google Inc. nor the names of its
      15                 : // contributors may be used to endorse or promote products derived from
      16                 : // this software without specific prior written permission.
      17                 : //
      18                 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      19                 : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      20                 : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      21                 : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      22                 : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      23                 : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      24                 : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      25                 : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      26                 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      27                 : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      28                 : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      29                 : 
      30                 : #include "common/linux/http_upload.h"
      31                 : 
      32                 : #include <assert.h>
      33                 : #include <dlfcn.h>
      34                 : #include <curl/curl.h>
      35                 : #include <curl/easy.h>
      36                 : 
      37                 : namespace {
      38                 : 
      39                 : // Callback to get the response data from server.
      40               0 : static size_t WriteCallback(void *ptr, size_t size,
      41                 :                             size_t nmemb, void *userp) {
      42               0 :   if (!userp)
      43               0 :     return 0;
      44                 : 
      45               0 :   std::string *response = reinterpret_cast<std::string *>(userp);
      46               0 :   size_t real_size = size * nmemb;
      47               0 :   response->append(reinterpret_cast<char *>(ptr), real_size);
      48               0 :   return real_size;
      49                 : }
      50                 : 
      51                 : }  // namespace
      52                 : 
      53                 : namespace google_breakpad {
      54                 : 
      55                 : static const char kUserAgent[] = "Breakpad/1.0 (Linux)";
      56                 : 
      57                 : // static
      58               0 : bool HTTPUpload::SendRequest(const string &url,
      59                 :                              const map<string, string> &parameters,
      60                 :                              const string &upload_file,
      61                 :                              const string &file_part_name,
      62                 :                              const string &proxy,
      63                 :                              const string &proxy_user_pwd,
      64                 :                              const string &ca_certificate_file,
      65                 :                              string *response_body,
      66                 :                              string *error_description) {
      67               0 :   if (!CheckParameters(parameters))
      68               0 :     return false;
      69                 : 
      70               0 :   void *curl_lib = dlopen("libcurl.so", RTLD_NOW);
      71               0 :   if (!curl_lib) {
      72               0 :     if (error_description != NULL)
      73               0 :       *error_description = dlerror();
      74               0 :     curl_lib = dlopen("libcurl.so.4", RTLD_NOW);
      75                 :   }
      76               0 :   if (!curl_lib) {
      77                 :     // Debian gives libcurl a different name when it is built against GnuTLS
      78                 :     // instead of OpenSSL.
      79               0 :     curl_lib = dlopen("libcurl-gnutls.so.4", RTLD_NOW);
      80                 :   }
      81               0 :   if (!curl_lib) {
      82               0 :     curl_lib = dlopen("libcurl.so.3", RTLD_NOW);
      83                 :   }
      84               0 :   if (!curl_lib) {
      85               0 :     return false;
      86                 :   }
      87                 : 
      88                 :   CURL* (*curl_easy_init)(void);
      89               0 :   *(void**) (&curl_easy_init) = dlsym(curl_lib, "curl_easy_init");
      90               0 :   CURL *curl = (*curl_easy_init)();
      91               0 :   if (error_description != NULL)
      92               0 :     *error_description = "No Error";
      93                 : 
      94               0 :   if (!curl) {
      95               0 :     dlclose(curl_lib);
      96               0 :     return false;
      97                 :   }
      98                 : 
      99               0 :   CURLcode err_code = CURLE_OK;
     100                 :   CURLcode (*curl_easy_setopt)(CURL *, CURLoption, ...);
     101               0 :   *(void**) (&curl_easy_setopt) = dlsym(curl_lib, "curl_easy_setopt");
     102               0 :   (*curl_easy_setopt)(curl, CURLOPT_URL, url.c_str());
     103               0 :   (*curl_easy_setopt)(curl, CURLOPT_USERAGENT, kUserAgent);
     104                 :   // Set proxy information if necessary.
     105               0 :   if (!proxy.empty())
     106               0 :     (*curl_easy_setopt)(curl, CURLOPT_PROXY, proxy.c_str());
     107               0 :   if (!proxy_user_pwd.empty())
     108               0 :     (*curl_easy_setopt)(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());
     109                 : 
     110               0 :   if (!ca_certificate_file.empty())
     111               0 :     (*curl_easy_setopt)(curl, CURLOPT_CAINFO, ca_certificate_file.c_str());
     112                 : 
     113               0 :   struct curl_httppost *formpost = NULL;
     114               0 :   struct curl_httppost *lastptr = NULL;
     115                 :   // Add form data.
     116                 :   CURLFORMcode (*curl_formadd)(struct curl_httppost **, struct curl_httppost **, ...);
     117               0 :   *(void**) (&curl_formadd) = dlsym(curl_lib, "curl_formadd");
     118               0 :   map<string, string>::const_iterator iter = parameters.begin();
     119               0 :   for (; iter != parameters.end(); ++iter)
     120                 :     (*curl_formadd)(&formpost, &lastptr,
     121               0 :                  CURLFORM_COPYNAME, iter->first.c_str(),
     122               0 :                  CURLFORM_COPYCONTENTS, iter->second.c_str(),
     123               0 :                  CURLFORM_END);
     124                 : 
     125                 :   // Add form file.
     126                 :   (*curl_formadd)(&formpost, &lastptr,
     127                 :                CURLFORM_COPYNAME, file_part_name.c_str(),
     128                 :                CURLFORM_FILE, upload_file.c_str(),
     129               0 :                CURLFORM_END);
     130                 : 
     131               0 :   (*curl_easy_setopt)(curl, CURLOPT_HTTPPOST, formpost);
     132                 : 
     133                 :   // Disable 100-continue header.
     134               0 :   struct curl_slist *headerlist = NULL;
     135               0 :   char buf[] = "Expect:";
     136                 :   struct curl_slist* (*curl_slist_append)(struct curl_slist *, const char *);
     137               0 :   *(void**) (&curl_slist_append) = dlsym(curl_lib, "curl_slist_append");
     138               0 :   headerlist = (*curl_slist_append)(headerlist, buf);
     139               0 :   (*curl_easy_setopt)(curl, CURLOPT_HTTPHEADER, headerlist);
     140                 : 
     141               0 :   if (response_body != NULL) {
     142               0 :     (*curl_easy_setopt)(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
     143                 :     (*curl_easy_setopt)(curl, CURLOPT_WRITEDATA,
     144               0 :                      reinterpret_cast<void *>(response_body));
     145                 :   }
     146                 : 
     147                 :   CURLcode (*curl_easy_perform)(CURL *);
     148               0 :   *(void**) (&curl_easy_perform) = dlsym(curl_lib, "curl_easy_perform");
     149               0 :   err_code = (*curl_easy_perform)(curl);
     150                 :   const char* (*curl_easy_strerror)(CURLcode);
     151               0 :   *(void**) (&curl_easy_strerror) = dlsym(curl_lib, "curl_easy_strerror");
     152                 : #ifndef NDEBUG
     153               0 :   if (err_code != CURLE_OK)
     154                 :     fprintf(stderr, "Failed to send http request to %s, error: %s\n",
     155                 :             url.c_str(),
     156               0 :             (*curl_easy_strerror)(err_code));
     157                 : #endif
     158               0 :   if (error_description != NULL)
     159               0 :     *error_description = (*curl_easy_strerror)(err_code);
     160                 : 
     161                 :   void (*curl_easy_cleanup)(CURL *);
     162               0 :   *(void**) (&curl_easy_cleanup) = dlsym(curl_lib, "curl_easy_cleanup");
     163               0 :   (*curl_easy_cleanup)(curl);
     164               0 :   if (formpost != NULL) {
     165                 :     void (*curl_formfree)(struct curl_httppost *);
     166               0 :     *(void**) (&curl_formfree) = dlsym(curl_lib, "curl_formfree");
     167               0 :     (*curl_formfree)(formpost);
     168                 :   }
     169               0 :   if (headerlist != NULL) {
     170                 :     void (*curl_slist_free_all)(struct curl_slist *);
     171               0 :     *(void**) (&curl_slist_free_all) = dlsym(curl_lib, "curl_slist_free_all");
     172               0 :     (*curl_slist_free_all)(headerlist);
     173                 :   }
     174               0 :   dlclose(curl_lib);
     175               0 :   return err_code == CURLE_OK;
     176                 : }
     177                 : 
     178                 : // static
     179               0 : bool HTTPUpload::CheckParameters(const map<string, string> &parameters) {
     180               0 :   for (map<string, string>::const_iterator pos = parameters.begin();
     181               0 :        pos != parameters.end(); ++pos) {
     182               0 :     const string &str = pos->first;
     183               0 :     if (str.size() == 0)
     184               0 :       return false;  // disallow empty parameter names
     185               0 :     for (unsigned int i = 0; i < str.size(); ++i) {
     186               0 :       int c = str[i];
     187               0 :       if (c < 32 || c == '"' || c > 127) {
     188               0 :         return false;
     189                 :       }
     190                 :     }
     191                 :   }
     192               0 :   return true;
     193                 : }
     194                 : 
     195                 : }  // namespace google_breakpad

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