Support old steam http interfaces.

WHen overlay is shown, you have at least 1 friend connected and you resize the game window smaller to the friend list position, it crashes because ImGui::ListBoxHeader returns false when its clipped and ImGui::ListBoxFooter shouldn't be called.

dll/steam_client.cpp

@@ -812,11 +812,25 @@ ISteamHTTP *Steam_Client::GetISteamHTTP( HSteamUser hSteamuser, HSteamPipe hStea
 {
     PRINT_DEBUG("GetISteamHTTP %s\n", pchVersion);
     if (!steam_pipes.count(hSteamPipe) || !hSteamuser) return NULL;
+    Steam_HTTP *steam_http_temp;
+
     if (steam_pipes[hSteamPipe] == Steam_Pipe::SERVER) {
-        return steam_gameserver_http;
+        steam_http_temp = steam_gameserver_http;
+    } else {
+        steam_http_temp = steam_http;
     }
 
-    return steam_http;
+    if (strcmp(pchVersion, "STEAMHTTP_INTERFACE_VERSION001") == 0) {
+        return (ISteamHTTP *)(void *)(ISteamHTTP001 *)steam_http_temp;
+    } else if (strcmp(pchVersion, "STEAMHTTP_INTERFACE_VERSION002") == 0) {
+        return (ISteamHTTP *)(void *)(ISteamHTTP002 *)steam_http_temp;
+    } else if (strcmp(pchVersion, STEAMHTTP_INTERFACE_VERSION) == 0) {
+        return (ISteamHTTP *)(void *)(ISteamHTTP *)steam_http_temp;
+    } else {
+        return (ISteamHTTP *)(void *)(ISteamHTTP *)steam_http_temp;
+    }
+
+    return steam_http_temp;
 }
 
 // Deprecated - the ISteamUnifiedMessages interface is no longer intended for public consumption.

dll/steam_http.h

@@ -25,7 +25,10 @@ struct Steam_Http_Request {
 	std::string response;
 };
 
-class Steam_HTTP : public ISteamHTTP
+class Steam_HTTP :
+public ISteamHTTP001,
+public ISteamHTTP002,
+public ISteamHTTP
 {
     class Settings *settings;
     class Networking *network;

overlay_experimental/steam_overlay.cpp

@@ -657,7 +657,8 @@ void Steam_Overlay::OverlayProc()
             std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
             if (!friends.empty())
             {
-                ImGui::ListBoxHeader("##label", friends.size());
+                if (ImGui::ListBoxHeader("##label", friends.size()))
+                {
                     std::for_each(friends.begin(), friends.end(), [this](std::pair<Friend const, friend_window_state> &i)
                     {
                         ImGui::PushID(i.second.id-base_friend_window_id+base_friend_item_id);
@@ -675,6 +676,7 @@ void Steam_Overlay::OverlayProc()
                     ImGui::ListBoxFooter();
                 }
             }
+        }
         ImGui::End();
 
         ImGui::PopFont();

sdk_includes/isteamhttp001.h

@@ -0,0 +1,85 @@
+
+#ifndef ISTEAMHTTP001_H
+#define ISTEAMHTTP001_H
+#ifdef STEAM_WIN32
+#pragma once
+#endif
+
+class ISteamHTTP001
+{
+public:
+
+	// 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.  Only http requests (ie, not https) are
+	// currently supported, so this string must start with http:// or https:// and should look like http://store.steampowered.com/app/250/ 
+	// or such.
+	virtual HTTPRequestHandle CreateHTTPRequest( EHTTPMethod eHTTPRequestMethod, const char *pchAbsoluteURL ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestContextValue( HTTPRequestHandle hRequest, uint64 ulContextValue ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestNetworkActivityTimeout( HTTPRequestHandle hRequest, uint32 unTimeoutSeconds ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, const char *pchHeaderValue ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestGetOrPostParameter( HTTPRequestHandle hRequest, const char *pchParamName, const char *pchParamValue ) = 0;
+
+	// Sends the HTTP request, will return false on a bad handle, otherwise use SteamCallHandle to wait on
+	// asyncronous 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.
+	virtual bool SendHTTPRequest( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle ) = 0;
+
+	// 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.
+	virtual bool DeferHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool PrioritizeHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseHeaderSize( HTTPRequestHandle hRequest, const char *pchHeaderName, uint32 *unResponseHeaderSize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, uint8 *pHeaderValueBuffer, uint32 unBufferSize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseBodySize( HTTPRequestHandle hRequest, uint32 *unBodySize ) = 0;
+
+	// Gets the body data from a HTTP response given a handle from HTTPRequestCompleted_t, will return false if the 
+	// handle is invalid or if the provided buffer is not the correct size.  Use BGetHTTPResponseBodySize first to find out
+	// the correct buffer size to use.
+	virtual bool GetHTTPResponseBodyData( HTTPRequestHandle hRequest, uint8 *pBodyDataBuffer, uint32 unBufferSize ) = 0;
+
+	// Releases an HTTP response handle, should always be called to free resources after receiving a HTTPRequestCompleted_t
+	// callback and finishing using the response.
+	virtual bool ReleaseHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool GetHTTPDownloadProgressPct( HTTPRequestHandle hRequest, float *pflPercentOut ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestRawPostBody( HTTPRequestHandle hRequest, const char *pchContentType, uint8 *pubBody, uint32 unBodyLen ) = 0;
+};
+
+#endif // ISTEAMHTTP001_H

sdk_includes/isteamhttp002.h

@@ -0,0 +1,124 @@
+
+#ifndef ISTEAMHTTP002_H
+#define ISTEAMHTTP002_H
+#ifdef STEAM_WIN32
+#pragma once
+#endif
+
+class ISteamHTTP002
+{
+public:
+
+	// 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.
+	virtual HTTPRequestHandle CreateHTTPRequest( EHTTPMethod eHTTPRequestMethod, const char *pchAbsoluteURL ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestContextValue( HTTPRequestHandle hRequest, uint64 ulContextValue ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestNetworkActivityTimeout( HTTPRequestHandle hRequest, uint32 unTimeoutSeconds ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, const char *pchHeaderValue ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestGetOrPostParameter( HTTPRequestHandle hRequest, const char *pchParamName, const char *pchParamValue ) = 0;
+
+	// 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.
+	virtual bool SendHTTPRequest( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle ) = 0;
+
+	// 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.
+	virtual bool SendHTTPRequestAndStreamResponse( HTTPRequestHandle hRequest, SteamAPICall_t *pCallHandle ) = 0;
+
+	// 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.
+	virtual bool DeferHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool PrioritizeHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseHeaderSize( HTTPRequestHandle hRequest, const char *pchHeaderName, uint32 *unResponseHeaderSize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseHeaderValue( HTTPRequestHandle hRequest, const char *pchHeaderName, uint8 *pHeaderValueBuffer, uint32 unBufferSize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseBodySize( HTTPRequestHandle hRequest, uint32 *unBodySize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPResponseBodyData( HTTPRequestHandle hRequest, uint8 *pBodyDataBuffer, uint32 unBufferSize ) = 0;
+
+	// 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.
+	virtual bool GetHTTPStreamingResponseBodyData( HTTPRequestHandle hRequest, uint32 cOffset, uint8 *pBodyDataBuffer, uint32 unBufferSize ) = 0;
+
+	// Releases an HTTP response handle, should always be called to free resources after receiving a HTTPRequestCompleted_t
+	// callback and finishing using the response.
+	virtual bool ReleaseHTTPRequest( HTTPRequestHandle hRequest ) = 0;
+
+	// 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.
+	virtual bool GetHTTPDownloadProgressPct( HTTPRequestHandle hRequest, float *pflPercentOut ) = 0;
+
+	// 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.
+	virtual bool SetHTTPRequestRawPostBody( HTTPRequestHandle hRequest, const char *pchContentType, uint8 *pubBody, uint32 unBodyLen ) = 0;
+
+	// 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.
+	virtual HTTPCookieContainerHandle CreateCookieContainer( bool bAllowResponsesToModify ) = 0;
+
+	// Release a cookie container you are finished using, freeing it's memory
+	virtual bool ReleaseCookieContainer( HTTPCookieContainerHandle hCookieContainer ) = 0;
+
+	// Adds a cookie to the specified cookie container that will be used with future requests.
+	virtual bool SetCookie( HTTPCookieContainerHandle hCookieContainer, const char *pchHost, const char *pchUrl, const char *pchCookie ) = 0;
+
+	// Set the cookie container to use for a HTTP request
+	virtual bool SetHTTPRequestCookieContainer( HTTPRequestHandle hRequest, HTTPCookieContainerHandle hCookieContainer ) = 0;
+
+	// 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
+	virtual bool SetHTTPRequestUserAgentInfo( HTTPRequestHandle hRequest, const char *pchUserAgentInfo ) = 0;
+
+	// Set that https request should require verified SSL certificate via machines certificate trust store
+	virtual bool SetHTTPRequestRequiresVerifiedCertificate( HTTPRequestHandle hRequest, bool bRequireVerifiedCertificate ) = 0;
+
+	// 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
+	virtual bool SetHTTPRequestAbsoluteTimeoutMS( HTTPRequestHandle hRequest, uint32 unMilliseconds ) = 0;
+
+	// Check if the reason the request failed was because we timed it out (rather than some harder failure)
+	virtual bool GetHTTPRequestWasTimedOut( HTTPRequestHandle hRequest, bool *pbWasTimedOut ) = 0;
+};
+
+#endif // ISTEAMHTTP002_H

sdk_includes/steam_api.h

@@ -128,6 +128,8 @@
 #include "isteammusic.h"
 #include "isteammusicremote.h"
 #include "isteamhttp.h"
+#include "isteamhttp001.h"
+#include "isteamhttp002.h"
 #include "isteamcontroller.h"
 #include "isteamcontroller001.h"
 #include "isteamcontroller003.h"