void HttpClient::onRequest(Http::Client& client)
{
try
{
Pt::Http::MessageProgress progress = client.endSend();
if( ! progress.finished() )
{
client.beginSend(false);
return;
}
while( ! advanceMessage() )
{
if(client.request().buffer().size() > 8192)
{
client.beginSend(false);
return;
}
}
finishMessage();
client.beginReceive();
}
catch(const System::IOError&) // HttpError is also an IOError
{
// setError() makes finishResult() call onError() where we throw
setError();
finishResult();
}
}
virtual void getIdentity(const OAuthAccessToken& token)
{
Http::Client *client = new Http::Client(this);
client->setTimeout(15);
client->setMaximumResponseSize(10*1024);
client->done().connect
(boost::bind(&FacebookProcess::handleMe, this, _1, _2));
client->get("https://graph.facebook.com/me?fields=name,id,email&access_token=" + token.value());
#ifndef WT_TARGET_JAVA
WApplication::instance()->deferRendering();
#endif
}
std::size_t HttpClientImpl::onReplyBody(http::Client& client)
{
std::size_t count = 0;
char ch;
std::istream& is = client.in();
while (is.rdbuf()->in_avail() && is.get(ch))
{
++count;
if (_scanner.advance(ch))
{
log_debug("scanner finished");
try
{
_scanner.finalizeReply();
}
catch (const RemoteException& e)
{
_proc->setFault(e.rc(), e.text());
}
catch (const std::exception&)
{
log_warn("exception occured in finalizeReply");
_exceptionPending = true;
_proc->onFinished();
}
break;
}
}
log_debug("no more data - " << count << " bytes consumed");
return count;
}
void HttpClient::onReply(Http::Client& client)
{
try
{
Http::MessageProgress progress = client.endReceive();
if( progress.header() )
{
//_impl->verifyHeader( client.reply() );
beginResult( client.reply().body() );
}
if( progress.body() )
{
// reads until error or XML was consumed
parseResult();
// discard remaining data
client.reply().discard();
}
if( ! progress.finished() )
{
client.beginReceive();
return;
}
}
catch(const System::IOError&) // HttpError is also an IOError
{
// finished signal will call onError()
setError();
finishResult();
return;
}
// send finished signal
finishResult();
}
// This call retrieves information about LinkedIn user: basic profile info and email address (as defined by the scope member variable):
virtual void getIdentity(const OAuthAccessToken& token)
{
// Create Http REST client object:
Http::Client *client = new Http::Client(this);
client->setTimeout(15);
client->setMaximumResponseSize(10*1024);
// Tell how to handle the response:
client->done().connect(boost::bind(&LinkedInProcess::handleMe, this, _1, _2));
// Initialize request headers:
std::vector<Http::Message::Header> headers;
headers.push_back(Http::Message::Header("Authorization",
"Bearer " + token.value()));
const char *UserInfoUrl = "https://api.linkedin.com/v1/people/~:(id,num-connections,first-name,last-name,headline,location,email-address,positions,public-profile-url)?format=json";
client->get(UserInfoUrl, headers);
#ifndef WT_TARGET_JAVA
WApplication::instance()->deferRendering();
#endif
}
void request(Settings settings, http::Headers headers, std::string body,
http::RequestCallback &&callback) {
http_client.request(
settings, headers,
body, [=](Error error, http::Response &&response) {
YAML::Node rr;
rr["request"]["headers"] =
std::map<std::string, std::string>(headers);
rr["request"]["body"] = body;
rr["request"]["url"] = settings.at("url");
rr["request"]["http_version"] = settings.at("http_version");
rr["request"]["method"] = settings.at("method");
// XXX we should probably update the OONI data format to remove
// this.
rr["method"] = settings.at("method");
if (error == 0) {
rr["response"]["headers"] =
std::map<std::string, std::string>(response.headers);
rr["response"]["body"] = response.body;
rr["response"]["response_line"] = response.response_line;
rr["response"]["code"] = response.status_code;
} else {
rr["failure"] = "unknown_failure measurement_kit_error";
rr["error_code"] = (int)error;
}
entry["requests"].push_back(rr);
entry["agent"] = "agent";
entry["socksproxy"] = "";
callback(error, std::move(response));
}, &logger);
};
size_t HTTPFileLoader::ReadAt(s64 absolutePos, size_t bytes, void *data) {
s64 absoluteEnd = std::min(absolutePos + (s64)bytes, filesize_);
if (absolutePos >= filesize_ || bytes == 0) {
// Read outside of the file or no read at all, just fail immediately.
return 0;
}
Connect();
char requestHeaders[4096];
// Note that the Range header is *inclusive*.
snprintf(requestHeaders, sizeof(requestHeaders),
"Range: bytes=%lld-%lld\r\n", absolutePos, absoluteEnd - 1);
int err = client_.SendRequest("GET", url_.Resource().c_str(), requestHeaders, nullptr);
if (err < 0) {
Disconnect();
return 0;
}
Buffer readbuf;
std::vector<std::string> responseHeaders;
int code = client_.ReadResponseHeaders(&readbuf, responseHeaders);
if (code != 206) {
ERROR_LOG(LOADER, "HTTP server did not respond with range, received code=%03d", code);
Disconnect();
return 0;
}
// TODO: Expire cache via ETag, etc.
// We don't support multipart/byteranges responses.
bool supportedResponse = false;
for (std::string header : responseHeaders) {
if (startsWithNoCase(header, "Content-Range:")) {
// TODO: More correctness. Whitespace can be missing or different.
s64 first = -1, last = -1, total = -1;
std::string lowerHeader = header;
std::transform(lowerHeader.begin(), lowerHeader.end(), lowerHeader.begin(), tolower);
if (sscanf(lowerHeader.c_str(), "content-range: bytes %lld-%lld/%lld", &first, &last, &total) >= 2) {
if (first == absolutePos && last == absoluteEnd - 1) {
supportedResponse = true;
} else {
ERROR_LOG(LOADER, "Unexpected HTTP range: got %lld-%lld, wanted %lld-%lld.", first, last, absolutePos, absoluteEnd - 1);
}
} else {
ERROR_LOG(LOADER, "Unexpected HTTP range response: %s", header.c_str());
}
}
}
// TODO: Would be nice to read directly.
Buffer output;
int res = client_.ReadResponseEntity(&readbuf, responseHeaders, &output);
if (res != 0) {
ERROR_LOG(LOADER, "Unable to read HTTP response entity: %d", res);
// Let's take anything we got anyway. Not worse than returning nothing?
}
// TODO: Keepalive instead.
Disconnect();
if (!supportedResponse) {
ERROR_LOG(LOADER, "HTTP server did not respond with the range we wanted.");
return 0;
}
size_t readBytes = output.size();
output.Take(readBytes, (char *)data);
filepos_ = absolutePos + readBytes;
return readBytes;
}
void HttpClientImpl::onReplyHeader(http::Client& client)
{
verifyHeader(client.header());
}
