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// 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 <cassert>
#include <curl/curl.h>
#include <curl/easy.h>
#include <curl/types.h>
#include "common/linux/http_upload.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;
std::string *response = reinterpret_cast<std::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> ¶meters,
const string &upload_file,
const string &file_part_name,
const string &proxy,
const string &proxy_user_pwd,
string *response_body) {
if (!CheckParameters(parameters))
return false;
CURL *curl = curl_easy_init();
CURLcode err_code = CURLE_OK;
if (curl) {
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());
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
// Add form data.
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:";
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));
}
err_code = curl_easy_perform(curl);
#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 (curl != NULL)
curl_easy_cleanup(curl);
if (formpost != NULL)
curl_formfree(formpost);
if (headerlist != NULL)
curl_slist_free_all(headerlist);
return err_code == CURLE_OK;
}
return false;
}
// static
bool HTTPUpload::CheckParameters(const map<string, string> ¶meters) {
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
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