mirror of
https://gitlab.com/Mr_Goldberg/goldberg_emulator.git
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155 lines
9.5 KiB
C++
155 lines
9.5 KiB
C++
/* Copyright (C) 2019 Mr Goldberg
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This file is part of the Goldberg Emulator
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The Goldberg Emulator is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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The Goldberg Emulator is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the Goldberg Emulator; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "base.h"
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struct Steam_Http_Request {
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HTTPRequestHandle handle;
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uint64 context_value;
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std::string response;
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};
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class Steam_HTTP :
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public ISteamHTTP001,
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public ISteamHTTP002,
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public ISteamHTTP
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{
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class Settings *settings;
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class Networking *network;
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class SteamCallResults *callback_results;
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class SteamCallBacks *callbacks;
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std::vector<Steam_Http_Request> requests;
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Steam_Http_Request *get_request(HTTPRequestHandle hRequest);
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public:
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Steam_HTTP(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks);
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// Initializes a new HTTP request, returning a handle to use in further operations on it. Requires
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// the method (GET or POST) and the absolute URL for the request. Both http and https are supported,
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// so this string must start with http:// or https:// and should look like http://store.steampowered.com/app/250/
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// or such.
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HTTPRequestHandle CreateHTTPRequest( EHTTPMethod eHTTPRequestMethod, const char *pchAbsoluteURL );
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// Set a context value for the request, which will be returned in the HTTPRequestCompleted_t callback after
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// sending the request. This is just so the caller can easily keep track of which callbacks go with which request data.
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bool SetHTTPRequestContextValue( HTTPRequestHandle hRequest, uint64 ulContextValue );
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// Set a timeout in seconds for the HTTP request, must be called prior to sending the request. Default
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// timeout is 60 seconds if you don't call this. Returns false if the handle is invalid, or the request
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// has already been sent.
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bool SetHTTPRequestNetworkActivityTimeout( HTTPRequestHandle hRequest, uint32 unTimeoutSeconds );
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// Set a request header value for the request, must be called prior to sending the request. Will
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// return false if the handle is invalid or the request is already sent.
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bool SetHTTPRequestHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, const char *pchHeaderValue );
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// Set a GET or POST parameter value on the request, which is set will depend on the EHTTPMethod specified
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// when creating the request. Must be called prior to sending the request. Will return false if the
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// handle is invalid or the request is already sent.
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bool SetHTTPRequestGetOrPostParameter( HTTPRequestHandle hRequest, const char *pchParamName, const char *pchParamValue );
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// Sends the HTTP request, will return false on a bad handle, otherwise use SteamCallHandle to wait on
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// asynchronous response via callback.
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//
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// Note: If the user is in offline mode in Steam, then this will add a only-if-cached cache-control
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// header and only do a local cache lookup rather than sending any actual remote request.
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bool SendHTTPRequest( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle );
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// Sends the HTTP request, will return false on a bad handle, otherwise use SteamCallHandle to wait on
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// asynchronous response via callback for completion, and listen for HTTPRequestHeadersReceived_t and
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// HTTPRequestDataReceived_t callbacks while streaming.
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bool SendHTTPRequestAndStreamResponse( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle );
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// Defers a request you have sent, the actual HTTP client code may have many requests queued, and this will move
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// the specified request to the tail of the queue. Returns false on invalid handle, or if the request is not yet sent.
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bool DeferHTTPRequest( HTTPRequestHandle hRequest );
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// Prioritizes a request you have sent, the actual HTTP client code may have many requests queued, and this will move
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// the specified request to the head of the queue. Returns false on invalid handle, or if the request is not yet sent.
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bool PrioritizeHTTPRequest( HTTPRequestHandle hRequest );
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// Checks if a response header is present in a HTTP response given a handle from HTTPRequestCompleted_t, also
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// returns the size of the header value if present so the caller and allocate a correctly sized buffer for
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// GetHTTPResponseHeaderValue.
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bool GetHTTPResponseHeaderSize( HTTPRequestHandle hRequest, const char *pchHeaderName, uint32 *unResponseHeaderSize );
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// Gets header values from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
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// header is not present or if your buffer is too small to contain it's value. You should first call
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// BGetHTTPResponseHeaderSize to check for the presence of the header and to find out the size buffer needed.
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bool GetHTTPResponseHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, uint8 *pHeaderValueBuffer, uint32 unBufferSize );
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// Gets the size of the body data from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
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// handle is invalid.
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bool GetHTTPResponseBodySize( HTTPRequestHandle hRequest, uint32 *unBodySize );
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// Gets the body data from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the
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// 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
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// the correct buffer size to use.
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bool GetHTTPResponseBodyData( HTTPRequestHandle hRequest, uint8 *pBodyDataBuffer, uint32 unBufferSize );
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// Gets the body data from a streaming HTTP response given a handle from HTTPRequestDataReceived_t. Will return false if the
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// handle is invalid or is to a non-streaming response (meaning it wasn't sent with SendHTTPRequestAndStreamResponse), or if the buffer size and offset
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// do not match the size and offset sent in HTTPRequestDataReceived_t.
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bool GetHTTPStreamingResponseBodyData( HTTPRequestHandle hRequest, uint32 cOffset, uint8 *pBodyDataBuffer, uint32 unBufferSize );
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// Releases an HTTP response handle, should always be called to free resources after receiving a HTTPRequestCompleted_t
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// callback and finishing using the response.
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bool ReleaseHTTPRequest( HTTPRequestHandle hRequest );
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// Gets progress on downloading the body for the request. This will be zero unless a response header has already been
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// received which included a content-length field. For responses that contain no content-length it will report
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// zero for the duration of the request as the size is unknown until the connection closes.
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bool GetHTTPDownloadProgressPct( HTTPRequestHandle hRequest, float *pflPercentOut );
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// Sets the body for an HTTP Post request. Will fail and return false on a GET request, and will fail if POST params
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// have already been set for the request. Setting this raw body makes it the only contents for the post, the pchContentType
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// parameter will set the content-type header for the request so the server may know how to interpret the body.
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bool SetHTTPRequestRawPostBody( HTTPRequestHandle hRequest, const char *pchContentType, uint8 *pubBody, uint32 unBodyLen );
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// Creates a cookie container handle which you must later free with ReleaseCookieContainer(). If bAllowResponsesToModify=true
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// than any response to your requests using this cookie container may add new cookies which may be transmitted with
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// future requests. If bAllowResponsesToModify=false than only cookies you explicitly set will be sent. This API is just for
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// during process lifetime, after steam restarts no cookies are persisted and you have no way to access the cookie container across
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// repeat executions of your process.
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HTTPCookieContainerHandle CreateCookieContainer( bool bAllowResponsesToModify );
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// Release a cookie container you are finished using, freeing it's memory
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bool ReleaseCookieContainer( HTTPCookieContainerHandle hCookieContainer );
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// Adds a cookie to the specified cookie container that will be used with future requests.
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bool SetCookie( HTTPCookieContainerHandle hCookieContainer, const char *pchHost, const char *pchUrl, const char *pchCookie );
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// Set the cookie container to use for a HTTP request
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bool SetHTTPRequestCookieContainer( HTTPRequestHandle hRequest, HTTPCookieContainerHandle hCookieContainer );
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// 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
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bool SetHTTPRequestUserAgentInfo( HTTPRequestHandle hRequest, const char *pchUserAgentInfo );
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// Set that https request should require verified SSL certificate via machines certificate trust store
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bool SetHTTPRequestRequiresVerifiedCertificate( HTTPRequestHandle hRequest, bool bRequireVerifiedCertificate );
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// Set an absolute timeout on the HTTP request, this is just a total time timeout different than the network activity timeout
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// which can bump everytime we get more data
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bool SetHTTPRequestAbsoluteTimeoutMS( HTTPRequestHandle hRequest, uint32 unMilliseconds );
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// Check if the reason the request failed was because we timed it out (rather than some harder failure)
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bool GetHTTPRequestWasTimedOut( HTTPRequestHandle hRequest, bool *pbWasTimedOut );
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};
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