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|
/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#include <glog/logging.h>
#include "URL.h"
#include "UUID.h"
#include "uscxml/config.h"
#include <fstream>
#include <boost/lexical_cast.hpp>
#include <stdio.h> /* defines FILENAME_MAX */
#ifdef _WIN32
#include <fcntl.h>
#include <sys/types.h>
#include <io.h>
#include <direct.h>
#include <Shlobj.h>
#define getcwd _getcwd
#else
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#endif
#include <cstdlib> // mkstemp
#ifdef HAS_UNISTD_H
#include <unistd.h> // mkstemp legacy
#endif
#include <boost/algorithm/string.hpp>
namespace uscxml {
std::string URL::tmpDir() {
// try hard to find a temporary directory
const char* tmpDir = NULL;
if (tmpDir == NULL)
tmpDir = getenv("TMPDIR");
if (tmpDir == NULL)
tmpDir = getenv("TMP");
if (tmpDir == NULL)
tmpDir = getenv("TEMP");
if (tmpDir == NULL)
tmpDir = getenv("USERPROFILE");
if (tmpDir == NULL)
tmpDir = "/tmp/";
#if 0
char* tmpl = (char*)malloc(strlen(tmpDir) + 11);
char* writePtr = tmpl;
memcpy(writePtr, tmpDir, strlen(tmpDir));
writePtr += strlen(tmpDir);
memcpy(writePtr, "scxmlXXXXXX", 11);
writePtr += 11;
tmpl[writePtr - tmpl] = 0;
return tmpl;
#endif
return tmpDir;
}
std::map<std::string, std::string> URL::mimeTypes;
std::string URL::getMimeType(const std::string extension, std::string magic) {
if (mimeTypes.empty()) {
mimeTypes["txt"] = "text/plain";
mimeTypes["c"] = "text/plain";
mimeTypes["h"] = "text/plain";
mimeTypes["html"] = "text/html";
mimeTypes["htm"] = "text/htm";
mimeTypes["css"] = "text/css";
mimeTypes["bmp"] = "image/bmp";
mimeTypes["gif"] = "image/gif";
mimeTypes["jpg"] = "image/jpeg";
mimeTypes["jpeg"] = "image/jpeg";
mimeTypes["mpg"] = "video/mpeg";
mimeTypes["mov"] = "video/quicktime";
mimeTypes["png"] = "image/png";
mimeTypes["pdf"] = "application/pdf";
mimeTypes["ps"] = "application/postscript";
mimeTypes["tif"] = "image/tiff";
mimeTypes["tiff"] = "image/tiff";
}
if (mimeTypes.find(extension) != mimeTypes.end()) {
return mimeTypes[extension];
}
return "application/octet-stream";
}
std::string URL::getTmpFilename(const std::string& suffix) {
std::string tmpFilename = tmpDir();
if (tmpFilename.find_last_of(PATH_SEPERATOR) != tmpFilename.length() - 1)
tmpFilename += PATH_SEPERATOR;
tmpFilename += UUID::getUUID();
if (suffix.length() > 0) {
tmpFilename += ".";
tmpFilename += suffix;
}
return tmpFilename;
}
#if (!defined APPLE && !defined IOS)
std::string URL::getResourceDir() {
#ifdef _WIN32
TCHAR szPath[MAX_PATH];
if (SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, 0, szPath)) {
return szPath;
} else {
return getenv("APPDATA");
}
#else
struct passwd* pw = getpwuid(getuid());
std::string homedir(pw->pw_dir);
struct stat dirStat;
int err = 0;
err = stat(std::string(homedir + PATH_SEPERATOR + ".config").c_str(), &dirStat);
if (err == ENOENT) {
err = mkdir(std::string(homedir + PATH_SEPERATOR + ".config").c_str(), S_IWUSR | S_IRUSR | S_IROTH);
}
err = stat(std::string(homedir + PATH_SEPERATOR + ".config" + PATH_SEPERATOR + "uscxml").c_str(), &dirStat);
if (err != 0) {
std::cout << std::string(homedir + PATH_SEPERATOR + ".config" + PATH_SEPERATOR + "uscxml") << std::endl;
err = mkdir(std::string(homedir + PATH_SEPERATOR + ".config" + PATH_SEPERATOR + "uscxml").c_str(),
S_IWUSR | S_IRUSR | S_IROTH | S_IRGRP | S_IXUSR | S_IXOTH | S_IXGRP);
}
err = stat(std::string(homedir + PATH_SEPERATOR + ".config" + PATH_SEPERATOR + "uscxml").c_str(), &dirStat);
if (err == 0) {
return homedir + PATH_SEPERATOR + ".config" + PATH_SEPERATOR + "uscxml";
}
return "";
#endif
}
#endif
URLImpl::URLImpl(const std::string& url) : _handle(NULL), _uri(url), _isDownloaded(false), _hasFailed(false) {
std::stringstream ss(_uri.path());
std::string item;
while(std::getline(ss, item, '/')) {
if (item.length() == 0)
continue;
_pathComponents.push_back(item);
}
}
URLImpl::~URLImpl() {
if (_handle != NULL)
curl_easy_cleanup(_handle);
}
URLImpl::operator Data() const {
Data data;
data.compound["url"] = Data(asString(), Data::VERBATIM);
data.compound["host"] = Data(_uri.host(), Data::VERBATIM);
data.compound["scheme"] = Data(_uri.scheme(), Data::VERBATIM);
data.compound["path"] = Data(_uri.path(), Data::VERBATIM);
data.compound["port"] = Data(_uri.port());
data.compound["isAbsolute"] = Data(_uri.is_absolute() ? "true" : "false");
if (_statusCode.length() > 0)
data.compound["statusCode"] = Data(_statusCode, Data::VERBATIM);
if (_statusMsg.length() > 0)
data.compound["statusMsg"] = Data(_statusMsg, Data::VERBATIM);
std::vector<std::string>::const_iterator pathIter = _pathComponents.begin();
while(pathIter != _pathComponents.end()) {
data.compound["pathComponent"].array.push_back(Data(*pathIter, Data::VERBATIM));
pathIter++;
}
return data;
}
CURL* URLImpl::getCurlHandle() {
if (_handle == NULL) {
_handle = curl_easy_init();
if (_handle == NULL)
LOG(ERROR) << "curl_easy_init returned NULL, this is bad!";
}
return _handle;
}
size_t URLImpl::writeHandler(void *ptr, size_t size, size_t nmemb, void *userdata) {
URLImpl* url = (URLImpl*)userdata;
url->_rawInContent.write((char*)ptr, size * nmemb);
monIter_t monIter = url->_monitors.begin();
while(monIter != url->_monitors.end()) {
(*monIter)->contentChunkReceived(URL(url->shared_from_this()), std::string((char*)ptr, size * nmemb));
monIter++;
}
return size * nmemb;
}
size_t URLImpl::headerHandler(void *ptr, size_t size, size_t nmemb, void *userdata) {
URLImpl* url = (URLImpl*)userdata;
url->_rawInHeader.write((char*)ptr, size * nmemb);
monIter_t monIter = url->_monitors.begin();
while(monIter != url->_monitors.end()) {
(*monIter)->headerChunkReceived(URL(url->shared_from_this()), std::string((char*)ptr, size * nmemb));
monIter++;
}
return size * nmemb;
}
void URLImpl::downloadStarted() {
// LOG(INFO) << "Starting download of " << asString() << std::endl;
_rawInContent.str("");
_rawInContent.clear();
_rawInHeader.str("");
_rawInHeader.clear();
_statusMsg = "";
_statusCode = "";
monIter_t monIter = _monitors.begin();
while(monIter != _monitors.end()) {
(*monIter)->downloadStarted(URL(shared_from_this()));
monIter++;
}
}
void URLImpl::downloadCompleted() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (boost::iequals(scheme(), "http")) {
// process header fields
std::string line;
while (std::getline(_rawInHeader, line)) {
size_t colon = line.find_first_of(":");
size_t newline = line.find_first_of("\r\n");
if (newline == std::string::npos)
newline = line.size();
if (colon == std::string::npos) {
_statusMsg = line.substr(0, newline);
if (_statusMsg.length() >= 11)
_statusCode = _statusMsg.substr(9, 3);
} else {
std::string key = line.substr(0, colon);
size_t firstChar = line.find_first_not_of(": ", colon, 2);
if (firstChar == std::string::npos) {
// nothing but spaces?
_inHeaders[line.substr(0, newline)] = "";
} else {
std::string value = line.substr(firstChar, newline - firstChar);
_inHeaders[key] = value;
}
}
}
}
_hasFailed = false;
_isDownloaded = true;
_condVar.notify_all();
monIter_t monIter = _monitors.begin();
while(monIter != _monitors.end()) {
(*monIter)->downloadCompleted(URL(shared_from_this()));
monIter++;
}
}
void URLImpl::downloadFailed(CURLcode errorCode) {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
LOG(ERROR) << "Downloading " << asString() << " failed: " << curl_easy_strerror(errorCode);
_error = curl_easy_strerror(errorCode);
_hasFailed = true;
_isDownloaded = false;
_condVar.notify_all();
monIter_t monIter = _monitors.begin();
while(monIter != _monitors.end()) {
(*monIter)->downloadFailed(URL(shared_from_this()), errorCode);
monIter++;
}
}
const std::string URLImpl::getInHeaderField(const std::string& key) {
std::map<std::string, std::string> headerFields = getInHeaderFields();
if (headerFields.find(key) != headerFields.end()) {
return headerFields[key];
}
return "";
}
const std::string URLImpl::getStatusCode() {
if (!_isDownloaded)
download(true);
return _statusCode;
}
const std::string URLImpl::getStatusMessage() {
if (!_isDownloaded)
download(true);
return _statusMsg;
}
const std::map<std::string, std::string> URLImpl::getInHeaderFields() {
if (!_isDownloaded)
download(true);
return _inHeaders;
}
void URLImpl::setRequestType(const std::string& requestType) {
_requestType = requestType;
}
void URLImpl::setOutContent(const std::string& content) {
_outContent = content;
}
const std::string URLImpl::getInContent(bool forceReload) {
if (!_isDownloaded) {
download(true);
}
return _rawInContent.str();
}
const void URLImpl::download(bool blocking) {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (_isDownloaded)
return;
URL url(shared_from_this());
URLFetcher::fetchURL(url);
if (blocking) {
while(!_isDownloaded && !_hasFailed) {
_condVar.wait(_mutex); // wait for notification
}
if (_hasFailed) {
Event exception;
exception.name = "error.communication";
exception.data = URL(shared_from_this());
if (_error.length() > 0)
exception.data.compound["reason"] = Data(_error, Data::VERBATIM);
throw exception;
}
if (boost::iequals(scheme(), "http")) {
if (_statusCode.size() > 0 && boost::lexical_cast<int>(_statusCode) > 400) {
Event exception;
exception.name = "error.communication";
exception.data = URL(shared_from_this());
throw exception;
}
}
}
}
const bool URLImpl::toAbsoluteCwd() {
char currPath[FILENAME_MAX];
if (!getcwd(currPath, sizeof(currPath))) {
return false;
}
currPath[sizeof(currPath) - 1] = '\0'; /* not really required */
#ifdef _WIN32
return toAbsolute(std::string("file://" + std::string(currPath) + "/"));
#else
return toAbsolute(std::string("file://" + std::string(currPath) + "/"));
#endif
}
std::string URLImpl::getLocalFilename(const std::string& suffix) {
if (_localFile.length() > 0)
return _localFile;
if (_uri.scheme().compare("file") == 0)
return _uri.path();
// try hard to find a temporary directory
const char* tmpDir = NULL;
if (tmpDir == NULL)
tmpDir = getenv("TMPDIR");
if (tmpDir == NULL)
tmpDir = getenv("TMP");
if (tmpDir == NULL)
tmpDir = getenv("TEMP");
if (tmpDir == NULL)
tmpDir = getenv("USERPROFILE");
if (tmpDir == NULL)
tmpDir = "/tmp/";
char* tmpl = (char*)malloc(strlen(tmpDir) + 11 + suffix.length());
char* writePtr = tmpl;
memcpy(writePtr, tmpDir, strlen(tmpDir));
writePtr += strlen(tmpDir);
memcpy(writePtr, "scxmlXXXXXX", 11);
writePtr += 11;
memcpy(writePtr, suffix.c_str(), suffix.length());
writePtr += suffix.length();
tmpl[writePtr - tmpl] = 0;
#ifdef _WIN32
_mktemp_s(tmpl, strlen(tmpl) + 1);
int fd = _open(tmpl, _O_CREAT, _S_IREAD | _S_IWRITE);
#else
int fd = mkstemps(tmpl, suffix.length());
#endif
if (fd < 0) {
LOG(ERROR) << "mkstemp " << tmpl << ": " << strerror(errno) << std::endl;
return "";
}
#ifdef WIN32
_close(fd);
#else
close(fd);
#endif
return std::string(tmpl);
}
void URL::toBaseURL(URL& uri) {
uri = asBaseURL(uri);
}
URL URL::asBaseURL(const URL& uri) {
std::string uriStr = uri.asString();
std::string baseUriStr = uriStr.substr(0, uriStr.find_last_of("/\\") + 1);
#ifdef _WIN32
if (baseUriStr.find("file://") == 0) {
baseUriStr = baseUriStr.substr(7);
}
#endif
return URL(baseUriStr);
}
const bool URLImpl::toAbsolute(const std::string& baseUrl) {
if (_uri.is_absolute())
return true;
std::string uriStr = _uri.as_string();
#ifdef _WIN32
if (baseUrl.find("file://") == 0) {
_uri = Arabica::io::URI("file:///" + baseUrl.substr(7), _uri.as_string());
} else {
_uri = Arabica::io::URI(baseUrl, _uri.as_string());
}
#else
_uri = Arabica::io::URI(baseUrl, _uri.as_string());
#endif
if (!_uri.is_absolute())
return false;
return true;
}
boost::shared_ptr<URLImpl> URLImpl::toLocalFile(const std::string& content, const std::string& suffix) {
boost::shared_ptr<URLImpl> urlImpl = boost::shared_ptr<URLImpl>(new URLImpl());
urlImpl->_localFile = urlImpl->getLocalFilename(suffix);
#ifdef _WIN32
urlImpl->_uri = std::string("file://") + urlImpl->_localFile;
#else
urlImpl->_uri = std::string("file://") + urlImpl->_localFile;
#endif
std::ofstream file(urlImpl->_localFile.c_str(), std::ios_base::out);
if(file.is_open()) {
file << content;
file.close();
} else {
return boost::shared_ptr<URLImpl>();
}
return urlImpl;
}
const std::string URLImpl::asLocalFile(const std::string& suffix, bool reload) {
// this is already a local file
if (_uri.scheme().compare("file") == 0)
return _uri.path();
if (_localFile.length() > 0 && !reload)
return _localFile;
if (_localFile.length() > 0)
remove(_localFile.c_str());
_localFile = getLocalFilename(suffix);
std::ofstream file(_localFile.c_str(), std::ios_base::out);
if(file.is_open()) {
file << URL(this->shared_from_this());
file.close();
} else {
_localFile = "";
}
return _localFile;
}
std::ostream & operator<<(std::ostream & stream, const URL& url) {
URL nonConstUrl = url; // this is a hack
stream << nonConstUrl.getInContent();
return stream;
}
URLFetcher::URLFetcher() {
_isStarted = false;
_multiHandle = curl_multi_init();
start();
}
URLFetcher::~URLFetcher() {
stop();
curl_multi_cleanup(_multiHandle);
}
void URLFetcher::fetchURL(URL& url) {
URLFetcher* instance = getInstance();
tthread::lock_guard<tthread::recursive_mutex> lock(instance->_mutex);
CURL* handle = url._impl->getCurlHandle();
assert(handle != NULL);
if (handle == NULL)
return;
if (instance->_handlesToURLs.find(handle) == instance->_handlesToURLs.end()) {
CURLcode curlError;
(curlError = curl_easy_setopt(handle, CURLOPT_URL, url.asString().c_str())) == CURLE_OK ||
LOG(ERROR) << "Cannot set url to " << url.asString() << ": " << curl_easy_strerror(curlError);
// (curlError = curl_easy_setopt(handle, CURLOPT_NOSIGNAL, 1)) == CURLE_OK ||
// LOG(ERROR) << "Cannot set curl to ignore signals: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_WRITEDATA, url._impl.get())) == CURLE_OK ||
LOG(ERROR) << "Cannot register this as write userdata: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, URLImpl::writeHandler)) == CURLE_OK ||
LOG(ERROR) << "Cannot set write callback: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_HEADERFUNCTION, URLImpl::headerHandler)) == CURLE_OK ||
LOG(ERROR) << "Cannot request header from curl: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_HEADERDATA, url._impl.get())) == CURLE_OK ||
LOG(ERROR) << "Cannot register this as header userdata: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_SSL_VERIFYPEER, false)) == CURLE_OK ||
LOG(ERROR) << "Cannot forfeit peer verification: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_USERAGENT, "curl/7.31.0")) == CURLE_OK ||
LOG(ERROR) << "Cannot set our user agent string: " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, true)) == CURLE_OK ||
LOG(ERROR) << "Cannot enable follow redirects: " << curl_easy_strerror(curlError);
if (boost::iequals(url._impl->_requestType, "post")) {
(curlError = curl_easy_setopt(handle, CURLOPT_POST, 1)) == CURLE_OK ||
LOG(ERROR) << "Cannot set request type to post for " << url.asString() << ": " << curl_easy_strerror(curlError);
(curlError = curl_easy_setopt(handle, CURLOPT_COPYPOSTFIELDS, url._impl->_outContent.c_str())) == CURLE_OK ||
LOG(ERROR) << "Cannot set post data " << url.asString() << ": " << curl_easy_strerror(curlError);
struct curl_slist* headers = NULL;
std::map<std::string, std::string>::iterator paramIter = url._impl->_outHeader.begin();
while(paramIter != url._impl->_outHeader.end()) {
char* key = curl_easy_escape(handle, paramIter->first.c_str(), paramIter->first.length());
char* value = curl_easy_escape(handle, paramIter->second.c_str(), paramIter->second.length());
char* header = (char*)malloc(paramIter->first.size() + strlen(value) + 3);
sprintf(header,"%s: %s", paramIter->first.c_str(), value);
headers = curl_slist_append(headers, header);
curl_free(key);
curl_free(value);
paramIter++;
}
(curlError = curl_easy_setopt(handle, CURLOPT_HTTPHEADER, headers)) == CURLE_OK ||
LOG(ERROR) << "Cannot headers for " << url.asString() << ": " << curl_easy_strerror(curlError);
//curl_slist_free_all(headers);
} else if (boost::iequals(url._impl->_requestType, "get")) {
(curlError = curl_easy_setopt(handle, CURLOPT_HTTPGET, 1)) == CURLE_OK ||
LOG(ERROR) << "Cannot set request type to get for " << url.asString() << ": " << curl_easy_strerror(curlError);
}
url.downloadStarted();
instance->_handlesToURLs[handle] = url;
assert(instance->_handlesToURLs.size() > 0);
curl_multi_add_handle(instance->_multiHandle, handle);
instance->_condVar.notify_all();
}
}
void URLFetcher::breakURL(URL& url) {
URLFetcher* instance = getInstance();
CURL* handle = url._impl->getCurlHandle();
tthread::lock_guard<tthread::recursive_mutex> lock(instance->_mutex);
if (instance->_handlesToURLs.find(handle) != instance->_handlesToURLs.end()) {
url.downloadFailed(CURLE_OK);
curl_multi_remove_handle(instance->_multiHandle, handle);
instance->_handlesToURLs.erase(handle);
}
}
void URLFetcher::start() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (!_isStarted) {
_isStarted = true;
_thread = new tthread::thread(URLFetcher::run, this);
}
}
void URLFetcher::stop() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (_isStarted) {
_isStarted = false;
_thread->join();
delete _thread;
}
}
void URLFetcher::run(void* instance) {
URLFetcher* fetcher = (URLFetcher*)instance;
while(fetcher->_isStarted) {
fetcher->perform();
}
LOG(ERROR) << "URLFetcher thread stopped!";
}
void URLFetcher::perform() {
CURLMsg *msg; /* for picking up messages with the transfer status */
int msgsLeft; /* how many messages are left */
int stillRunning;
CURLMcode err;
{
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (_handlesToURLs.empty()) {
_condVar.wait(_mutex);
}
err = curl_multi_perform(_multiHandle, &stillRunning);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_perform: " << curl_multi_strerror(err);
}
}
do {
struct timeval timeout;
int rc; /* select() return code */
fd_set fdread, fdwrite, fdexcep;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
int maxfd = -1;
long curlTimeOut = -1;
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
{
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
err = curl_multi_timeout(_multiHandle, &curlTimeOut);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_timeout: " << curl_multi_strerror(err);
}
}
if(curlTimeOut >= 0) {
timeout.tv_sec = curlTimeOut / 1000;
if(timeout.tv_sec > 1) {
timeout.tv_sec = 1;
} else {
timeout.tv_usec = (curlTimeOut % 1000) * 1000;
}
}
/* get file descriptors from the transfers */
{
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
err = curl_multi_fdset(_multiHandle, &fdread, &fdwrite, &fdexcep, &maxfd);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_fdset: " << curl_multi_strerror(err);
}
}
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
switch(rc) {
case -1:
/* select error */
break;
case 0: /* timeout */
default: { /* action */
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
err = curl_multi_perform(_multiHandle, &stillRunning);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_perform: " << curl_multi_strerror(err);
}
break;
}
}
{
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
while ((msg = curl_multi_info_read(_multiHandle, &msgsLeft))) {
if (msg->msg == CURLMSG_DONE) {
switch (msg->data.result) {
case CURLM_OK:
_handlesToURLs[msg->easy_handle].downloadCompleted();
err = curl_multi_remove_handle(_multiHandle, msg->easy_handle);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_remove_handle: " << curl_multi_strerror(err);
}
_handlesToURLs.erase(msg->easy_handle);
break;
case CURLM_BAD_HANDLE:
case CURLM_BAD_EASY_HANDLE:
case CURLE_FILE_COULDNT_READ_FILE:
case CURLM_OUT_OF_MEMORY:
case CURLM_INTERNAL_ERROR:
case CURLM_BAD_SOCKET:
case CURLM_UNKNOWN_OPTION:
case CURLM_LAST:
_handlesToURLs[msg->easy_handle].downloadFailed(msg->data.result);
err = curl_multi_remove_handle(_multiHandle, msg->easy_handle);
if (err != CURLM_OK) {
LOG(WARNING) << "curl_multi_remove_handle: " << curl_multi_strerror(err);
}
_handlesToURLs.erase(msg->easy_handle);
break;
default:
LOG(ERROR) << "Unhandled curl status";
}
} else {
LOG(ERROR) << "Curl reports info on unfinished download?!";
}
}
}
} while(stillRunning && _isStarted);
}
URLFetcher* URLFetcher::_instance = NULL;
URLFetcher* URLFetcher::getInstance() {
if (_instance == NULL) {
_instance = new URLFetcher();
}
return _instance;
}
}
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