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/* Copyright (C) 2019 Mr Goldberg
This file is part of the Goldberg Emulator
The Goldberg Emulator is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
The Goldberg Emulator 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. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the Goldberg Emulator; if not, see
<http://www.gnu.org/licenses/>. */
#include "steam_http.h"
Steam_HTTP::Steam_HTTP(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks)
{
this->settings = settings;
this->network = network;
this->callback_results = callback_results;
this->callbacks = callbacks;
}
Steam_Http_Request *Steam_HTTP::get_request(HTTPRequestHandle hRequest)
{
auto conn = std::find_if(requests.begin(), requests.end(), [&hRequest](struct Steam_Http_Request const& conn) { return conn.handle == hRequest;});
if (conn == requests.end()) return NULL;
return &(*conn);
}
// Initializes a new HTTP request, returning a handle to use in further operations on it. Requires
// the method (GET or POST) and the absolute URL for the request. Both http and https are supported,
// so this string must start with http:// or https:// and should look like http://store.steampowered.com/app/250/
// or such.
HTTPRequestHandle Steam_HTTP::CreateHTTPRequest( EHTTPMethod eHTTPRequestMethod, const char *pchAbsoluteURL )
{
PRINT_DEBUG("CreateHTTPRequest %i %s\n", eHTTPRequestMethod, pchAbsoluteURL);
static HTTPRequestHandle h;
++h;
struct Steam_Http_Request request;
request.handle = h;
request.context_value = 0;
requests.push_back(request);
return request.handle;
}
// Set a context value for the request, which will be returned in the HTTPRequestCompleted_t callback after
// sending the request. This is just so the caller can easily keep track of which callbacks go with which request data.
bool Steam_HTTP::SetHTTPRequestContextValue( HTTPRequestHandle hRequest, uint64 ulContextValue )
{
PRINT_DEBUG("SetHTTPRequestContextValue\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
request->context_value = ulContextValue;
return true;
}
// Set a timeout in seconds for the HTTP request, must be called prior to sending the request. Default
// timeout is 60 seconds if you don't call this. Returns false if the handle is invalid, or the request
// has already been sent.
bool Steam_HTTP::SetHTTPRequestNetworkActivityTimeout( HTTPRequestHandle hRequest, uint32 unTimeoutSeconds )
{
PRINT_DEBUG("SetHTTPRequestNetworkActivityTimeout\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Set a request header value for the request, must be called prior to sending the request. Will
// return false if the handle is invalid or the request is already sent.
bool Steam_HTTP::SetHTTPRequestHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, const char *pchHeaderValue )
{
PRINT_DEBUG("SetHTTPRequestHeaderValue\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Set a GET or POST parameter value on the request, which is set will depend on the EHTTPMethod specified
// when creating the request. Must be called prior to sending the request. Will return false if the
// handle is invalid or the request is already sent.
bool Steam_HTTP::SetHTTPRequestGetOrPostParameter( HTTPRequestHandle hRequest, const char *pchParamName, const char *pchParamValue )
{
PRINT_DEBUG("SetHTTPRequestGetOrPostParameter\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Sends the HTTP request, will return false on a bad handle, otherwise use SteamCallHandle to wait on
// asynchronous response via callback.
//
// Note: If the user is in offline mode in Steam, then this will add a only-if-cached cache-control
// header and only do a local cache lookup rather than sending any actual remote request.
bool Steam_HTTP::SendHTTPRequest( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle )
{
PRINT_DEBUG("SendHTTPRequest\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
struct HTTPRequestCompleted_t data;
data.m_hRequest = request->handle;
data.m_ulContextValue = request->context_value;
data.m_bRequestSuccessful = false;
data.m_eStatusCode = k_EHTTPStatusCode404NotFound;
data.m_unBodySize = request->response.size();
if (pCallHandle) {
*pCallHandle = callback_results->addCallResult(data.k_iCallback, &data, sizeof(data), 0.1);
}
return true;
}
// Sends the HTTP request, will return false on a bad handle, otherwise use SteamCallHandle to wait on
// asynchronous response via callback for completion, and listen for HTTPRequestHeadersReceived_t and
// HTTPRequestDataReceived_t callbacks while streaming.
bool Steam_HTTP::SendHTTPRequestAndStreamResponse( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle )
{
PRINT_DEBUG("SendHTTPRequestAndStreamResponse\n");
return false;
}
// Defers a request you have sent, the actual HTTP client code may have many requests queued, and this will move
// the specified request to the tail of the queue. Returns false on invalid handle, or if the request is not yet sent.
bool Steam_HTTP::DeferHTTPRequest( HTTPRequestHandle hRequest )
{
PRINT_DEBUG("DeferHTTPRequest\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Prioritizes a request you have sent, the actual HTTP client code may have many requests queued, and this will move
// the specified request to the head of the queue. Returns false on invalid handle, or if the request is not yet sent.
bool Steam_HTTP::PrioritizeHTTPRequest( HTTPRequestHandle hRequest )
{
PRINT_DEBUG("PrioritizeHTTPRequest\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Checks if a response header is present in a HTTP response given a handle from HTTPRequestCompleted_t, also
// returns the size of the header value if present so the caller and allocate a correctly sized buffer for
// GetHTTPResponseHeaderValue.
bool Steam_HTTP::GetHTTPResponseHeaderSize( HTTPRequestHandle hRequest, const char *pchHeaderName, uint32 *unResponseHeaderSize )
{
PRINT_DEBUG("GetHTTPResponseHeaderSize\n");
return false;
}
// Gets header values from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
// header is not present or if your buffer is too small to contain it's value. You should first call
// BGetHTTPResponseHeaderSize to check for the presence of the header and to find out the size buffer needed.
bool Steam_HTTP::GetHTTPResponseHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, uint8 *pHeaderValueBuffer, uint32 unBufferSize )
{
PRINT_DEBUG("GetHTTPResponseHeaderValue\n");
return false;
}
// Gets the size of the body data from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
// handle is invalid.
bool Steam_HTTP::GetHTTPResponseBodySize( HTTPRequestHandle hRequest, uint32 *unBodySize )
{
PRINT_DEBUG("GetHTTPResponseBodySize\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
if (unBodySize) *unBodySize = request->response.size();
return true;
}
// Gets the body data from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
// handle is invalid or is to a streaming response, or if the provided buffer is not the correct size. Use BGetHTTPResponseBodySize first to find out
// the correct buffer size to use.
bool Steam_HTTP::GetHTTPResponseBodyData( HTTPRequestHandle hRequest, uint8 *pBodyDataBuffer, uint32 unBufferSize )
{
PRINT_DEBUG("GetHTTPResponseBodyData\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
if (unBufferSize < request->response.size()) {
return false;
}
if (pBodyDataBuffer) memcpy(pBodyDataBuffer, request->response.data(), request->response.size());
return true;
}
// Gets the body data from a streaming HTTP response given a handle from HTTPRequestDataReceived_t. Will return false if the
// handle is invalid or is to a non-streaming response (meaning it wasn't sent with SendHTTPRequestAndStreamResponse), or if the buffer size and offset
// do not match the size and offset sent in HTTPRequestDataReceived_t.
bool Steam_HTTP::GetHTTPStreamingResponseBodyData( HTTPRequestHandle hRequest, uint32 cOffset, uint8 *pBodyDataBuffer, uint32 unBufferSize )
{
PRINT_DEBUG("GetHTTPStreamingResponseBodyData\n");
return false;
}
// Releases an HTTP response handle, should always be called to free resources after receiving a HTTPRequestCompleted_t
// callback and finishing using the response.
bool Steam_HTTP::ReleaseHTTPRequest( HTTPRequestHandle hRequest )
{
PRINT_DEBUG("ReleaseHTTPRequest\n");
auto c = std::begin(requests);
while (c != std::end(requests)) {
if (c->handle == hRequest) {
c = requests.erase(c);
return true;
}
}
return false;
}
// Gets progress on downloading the body for the request. This will be zero unless a response header has already been
// received which included a content-length field. For responses that contain no content-length it will report
// zero for the duration of the request as the size is unknown until the connection closes.
bool Steam_HTTP::GetHTTPDownloadProgressPct( HTTPRequestHandle hRequest, float *pflPercentOut )
{
PRINT_DEBUG("GetHTTPDownloadProgressPct\n");
return false;
}
// Sets the body for an HTTP Post request. Will fail and return false on a GET request, and will fail if POST params
// have already been set for the request. Setting this raw body makes it the only contents for the post, the pchContentType
// parameter will set the content-type header for the request so the server may know how to interpret the body.
bool Steam_HTTP::SetHTTPRequestRawPostBody( HTTPRequestHandle hRequest, const char *pchContentType, uint8 *pubBody, uint32 unBodyLen )
{
PRINT_DEBUG("SetHTTPRequestRawPostBody\n");
return false;
}
// Creates a cookie container handle which you must later free with ReleaseCookieContainer(). If bAllowResponsesToModify=true
// than any response to your requests using this cookie container may add new cookies which may be transmitted with
// future requests. If bAllowResponsesToModify=false than only cookies you explicitly set will be sent. This API is just for
// during process lifetime, after steam restarts no cookies are persisted and you have no way to access the cookie container across
// repeat executions of your process.
HTTPCookieContainerHandle Steam_HTTP::CreateCookieContainer( bool bAllowResponsesToModify )
{
PRINT_DEBUG("CreateCookieContainer\n");
return false;
}
// Release a cookie container you are finished using, freeing it's memory
bool Steam_HTTP::ReleaseCookieContainer( HTTPCookieContainerHandle hCookieContainer )
{
PRINT_DEBUG("ReleaseCookieContainer\n");
return false;
}
// Adds a cookie to the specified cookie container that will be used with future requests.
bool Steam_HTTP::SetCookie( HTTPCookieContainerHandle hCookieContainer, const char *pchHost, const char *pchUrl, const char *pchCookie )
{
PRINT_DEBUG("SetCookie\n");
return false;
}
// Set the cookie container to use for a HTTP request
bool Steam_HTTP::SetHTTPRequestCookieContainer( HTTPRequestHandle hRequest, HTTPCookieContainerHandle hCookieContainer )
{
PRINT_DEBUG("SetHTTPRequestCookieContainer\n");
return false;
}
// Set the extra user agent info for a request, this doesn't clobber the normal user agent, it just adds the extra info on the end
bool Steam_HTTP::SetHTTPRequestUserAgentInfo( HTTPRequestHandle hRequest, const char *pchUserAgentInfo )
{
PRINT_DEBUG("SetHTTPRequestUserAgentInfo\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Set that https request should require verified SSL certificate via machines certificate trust store
bool Steam_HTTP::SetHTTPRequestRequiresVerifiedCertificate( HTTPRequestHandle hRequest, bool bRequireVerifiedCertificate )
{
PRINT_DEBUG("SetHTTPRequestRequiresVerifiedCertificate\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Set an absolute timeout on the HTTP request, this is just a total time timeout different than the network activity timeout
// which can bump everytime we get more data
bool Steam_HTTP::SetHTTPRequestAbsoluteTimeoutMS( HTTPRequestHandle hRequest, uint32 unMilliseconds )
{
PRINT_DEBUG("SetHTTPRequestAbsoluteTimeoutMS\n");
Steam_Http_Request *request = get_request(hRequest);
if (!request) {
return false;
}
return true;
}
// Check if the reason the request failed was because we timed it out (rather than some harder failure)
bool Steam_HTTP::GetHTTPRequestWasTimedOut( HTTPRequestHandle hRequest, bool *pbWasTimedOut )
{
PRINT_DEBUG("GetHTTPRequestWasTimedOut\n");
return false;
}