Re-insert backed out SLE checkin so we can fix it

6 files changed, 85 insertions, 102 deletions

diff --git a/indra/llmessage/llcurl.cpp b/indra/llmessage/llcurl.cpp
index 024e17a777..91e11b8c0d 100644
--- a/indra/llmessage/llcurl.cpp
+++ b/indra/llmessage/llcurl.cpp
@@ -89,10 +89,6 @@ S32 gCurlMultiCount = 0;
 std::vector<LLMutex*> LLCurl::sSSLMutex;
 std::string LLCurl::sCAPath;
 std::string LLCurl::sCAFile;
-// Verify SSL certificates by default (matches libcurl default). The ability
-// to alter this flag is only to allow us to suppress verification if it's
-// broken for some reason.
-bool LLCurl::sSSLVerify = true;
 
 //static
 void LLCurl::setCAPath(const std::string& path)
@@ -107,18 +103,6 @@ void LLCurl::setCAFile(const std::string& file)
 }
 
 //static
-void LLCurl::setSSLVerify(bool verify)
-{
-	sSSLVerify = verify;
-}
-
-//static
-bool LLCurl::getSSLVerify()
-{
-	return sSSLVerify;
-}
-
-//static
 std::string LLCurl::getVersionString()
 {
 	return std::string(curl_version());
@@ -481,8 +465,7 @@ void LLCurl::Easy::prepRequest(const std::string& url,
 	setErrorBuffer();
 	setCA();
 
-	setopt(CURLOPT_SSL_VERIFYPEER, LLCurl::getSSLVerify());
-	setopt(CURLOPT_SSL_VERIFYHOST, LLCurl::getSSLVerify()? 2 : 0);
+	setopt(CURLOPT_SSL_VERIFYPEER, true);
 	setopt(CURLOPT_TIMEOUT, CURL_REQUEST_TIMEOUT);
 
 	setoptString(CURLOPT_URL, url);
@@ -912,6 +895,15 @@ void LLCurlEasyRequest::setReadCallback(curl_read_callback callback, void* userd
 	}
 }
 
+void LLCurlEasyRequest::setSSLCtxCallback(curl_ssl_ctx_callback callback, void* userdata)
+{
+	if (mEasy)
+	{
+		mEasy->setopt(CURLOPT_SSL_CTX_FUNCTION, (void*)callback);
+		mEasy->setopt(CURLOPT_SSL_CTX_DATA, userdata);
+	}
+}
+
 void LLCurlEasyRequest::slist_append(const char* str)
 {
 	if (mEasy)
@@ -1061,3 +1053,4 @@ void LLCurl::cleanupClass()
 #endif
 	curl_global_cleanup();
 }
+
diff --git a/indra/llmessage/llcurl.h b/indra/llmessage/llcurl.h
index caf02cccd9..b6a637ae5b 100644
--- a/indra/llmessage/llcurl.h
+++ b/indra/llmessage/llcurl.h
@@ -158,16 +158,6 @@ public:
 	static const std::string& getCAPath() { return sCAPath; }
 
 	/**
-	 * @ brief Set flag controlling whether to verify HTTPS certs.
-	 */
-	static void setSSLVerify(bool verify);
-
-	/**
-	 * @ brief Get flag controlling whether to verify HTTPS certs.
-	 */
-	static bool getSSLVerify();
-
-	/**
 	 * @ brief Initialize LLCurl class
 	 */
 	static void initClass();
@@ -192,7 +182,6 @@ public:
 private:
 	static std::string sCAPath;
 	static std::string sCAFile;
-	static bool sSSLVerify;
 };
 
 namespace boost
@@ -240,6 +229,7 @@ public:
 	void setHeaderCallback(curl_header_callback callback, void* userdata);
 	void setWriteCallback(curl_write_callback callback, void* userdata);
 	void setReadCallback(curl_read_callback callback, void* userdata);
+	void setSSLCtxCallback(curl_ssl_ctx_callback callback, void* userdata);
 	void slist_append(const char* str);
 	void sendRequest(const std::string& url);
 	void requestComplete();
diff --git a/indra/llmessage/llhttpclient.cpp b/indra/llmessage/llhttpclient.cpp
index dd56e18caf..345b76d1a1 100644
--- a/indra/llmessage/llhttpclient.cpp
+++ b/indra/llmessage/llhttpclient.cpp
@@ -31,7 +31,7 @@
  */
 
 #include "linden_common.h"
-
+#include <openssl/x509_vfy.h>
 #include "llhttpclient.h"
 
 #include "llassetstorage.h"
@@ -46,7 +46,10 @@
 #include "message.h"
 #include <curl/curl.h>
 
+
 const F32 HTTP_REQUEST_EXPIRY_SECS = 60.0f;
+LLURLRequest::SSLCertVerifyCallback LLHTTPClient::mCertVerifyCallback = NULL;
+
 ////////////////////////////////////////////////////////////////////////////
 
 // Responder class moved to LLCurl
@@ -206,13 +209,19 @@ namespace
 	LLPumpIO* theClientPump = NULL;
 }
 
+void LLHTTPClient::setCertVerifyCallback(LLURLRequest::SSLCertVerifyCallback callback)
+{
+	LLHTTPClient::mCertVerifyCallback = callback;
+}
+
 static void request(
 	const std::string& url,
 	LLURLRequest::ERequestAction method,
 	Injector* body_injector,
 	LLCurl::ResponderPtr responder,
 	const F32 timeout = HTTP_REQUEST_EXPIRY_SECS,
-	const LLSD& headers = LLSD())
+	const LLSD& headers = LLSD()
+    )
 {
 	if (!LLHTTPClient::hasPump())
 	{
@@ -222,7 +231,7 @@ static void request(
 	LLPumpIO::chain_t chain;
 
 	LLURLRequest* req = new LLURLRequest(method, url);
-	req->checkRootCertificate(LLCurl::getSSLVerify());
+	req->setSSLVerifyCallback(LLHTTPClient::getCertVerifyCallback(), (void *)req);
 
 	
 	lldebugs << LLURLRequest::actionAsVerb(method) << " " << url << " "
@@ -417,7 +426,6 @@ static LLSD blocking_request(
 	std::string body_str;
 	
 	// other request method checks root cert first, we skip?
-	//req->checkRootCertificate(true);
 	
 	// * Set curl handle options
 	curl_easy_setopt(curlp, CURLOPT_NOSIGNAL, 1);	// don't use SIGALRM for timeouts
diff --git a/indra/llmessage/llhttpclient.h b/indra/llmessage/llhttpclient.h
index 3d0646e5fe..8afbc9e0fc 100644
--- a/indra/llmessage/llhttpclient.h
+++ b/indra/llmessage/llhttpclient.h
@@ -40,7 +40,8 @@
 #include <string>
 
 #include <boost/intrusive_ptr.hpp>
-
+#include <openssl/x509_vfy.h>
+#include "llurlrequest.h"
 #include "llassettype.h"
 #include "llcurl.h"
 #include "lliopipe.h"
@@ -61,6 +62,7 @@ public:
 	typedef LLCurl::Responder Responder;
 	typedef LLCurl::ResponderPtr ResponderPtr;
 
+	
 	/** @name non-blocking API */
 	//@{
 	static void head(
@@ -155,7 +157,12 @@ public:
 	static void setPump(LLPumpIO& pump);
 		///< must be called before any of the above calls are made
 	static bool hasPump();
-		///< for testing
+
+	static void setCertVerifyCallback(LLURLRequest::SSLCertVerifyCallback callback);
+	static  LLURLRequest::SSLCertVerifyCallback getCertVerifyCallback() { return mCertVerifyCallback; }
+
+protected:
+	static LLURLRequest::SSLCertVerifyCallback mCertVerifyCallback;
 };
 
 #endif // LL_LLHTTPCLIENT_H
diff --git a/indra/llmessage/llurlrequest.cpp b/indra/llmessage/llurlrequest.cpp
index 4e7ceff984..1e76d10828 100644
--- a/indra/llmessage/llurlrequest.cpp
+++ b/indra/llmessage/llurlrequest.cpp
@@ -36,7 +36,8 @@
 #include "llurlrequest.h"
 
 #include <algorithm>
-
+#include <openssl/x509_vfy.h>
+#include <openssl/ssl.h>
 #include "llcurl.h"
 #include "llioutil.h"
 #include "llmemtype.h"
@@ -56,6 +57,8 @@ const std::string CONTEXT_TRANSFERED_BYTES("transfered_bytes");
 
 static size_t headerCallback(void* data, size_t size, size_t nmemb, void* user);
 
+
+
 /**
  * class LLURLRequestDetail
  */
@@ -72,6 +75,7 @@ public:
 	U32 mBodyLimit;
 	S32 mByteAccumulator;
 	bool mIsBodyLimitSet;
+	LLURLRequest::SSLCertVerifyCallback mSSLVerifyCallback;
 };
 
 LLURLRequestDetail::LLURLRequestDetail() :
@@ -80,7 +84,8 @@ LLURLRequestDetail::LLURLRequestDetail() :
 	mLastRead(NULL),
 	mBodyLimit(0),
 	mByteAccumulator(0),
-	mIsBodyLimitSet(false)
+	mIsBodyLimitSet(false),
+    mSSLVerifyCallback(NULL)
 {
 	LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST);
 	mCurlRequest = new LLCurlEasyRequest();
@@ -94,6 +99,36 @@ LLURLRequestDetail::~LLURLRequestDetail()
 	mLastRead = NULL;
 }
 
+void LLURLRequest::setSSLVerifyCallback(SSLCertVerifyCallback callback, void *param)
+{
+	mDetail->mSSLVerifyCallback = callback;
+	mDetail->mCurlRequest->setSSLCtxCallback(LLURLRequest::_sslCtxCallback, (void *)this);
+	mDetail->mCurlRequest->setopt(CURLOPT_SSL_VERIFYPEER, true);
+	mDetail->mCurlRequest->setopt(CURLOPT_SSL_VERIFYHOST, 2);	
+}
+
+
+// _sslCtxFunction
+// Callback function called when an SSL Context is created via CURL
+// used to configure the context for custom cert validation
+
+CURLcode LLURLRequest::_sslCtxCallback(CURL * curl, void *sslctx, void *param)
+{	
+	LLURLRequest *req = (LLURLRequest *)param;
+	if(req == NULL || req->mDetail->mSSLVerifyCallback == NULL)
+	{
+		SSL_CTX_set_cert_verify_callback((SSL_CTX *)sslctx, NULL, NULL);
+		return CURLE_OK;
+	}
+	SSL_CTX * ctx = (SSL_CTX *) sslctx;
+	// disable any default verification for server certs
+	SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, NULL);
+	// set the verification callback.
+	SSL_CTX_set_cert_verify_callback(ctx, req->mDetail->mSSLVerifyCallback, (void *)req);
+	// the calls are void
+	return CURLE_OK;
+	
+}
 
 /**
  * class LLURLRequest
@@ -148,6 +183,11 @@ void LLURLRequest::setURL(const std::string& url)
 	mDetail->mURL = url;
 }
 
+std::string LLURLRequest::getURL() const
+{
+	return mDetail->mURL;
+}
+
 void LLURLRequest::addHeader(const char* header)
 {
 	LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST);
@@ -160,13 +200,6 @@ void LLURLRequest::setBodyLimit(U32 size)
 	mDetail->mIsBodyLimitSet = true;
 }
 
-void LLURLRequest::checkRootCertificate(bool check)
-{
-	mDetail->mCurlRequest->setopt(CURLOPT_SSL_VERIFYPEER, (check? TRUE : FALSE));
-	mDetail->mCurlRequest->setopt(CURLOPT_SSL_VERIFYHOST, (check? 2 : 0));
-	mDetail->mCurlRequest->setoptString(CURLOPT_ENCODING, "");
-}
-
 void LLURLRequest::setCallback(LLURLRequestComplete* callback)
 {
 	LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST);
diff --git a/indra/llmessage/llurlrequest.h b/indra/llmessage/llurlrequest.h
index cb3c466440..69fd22e592 100644
--- a/indra/llmessage/llurlrequest.h
+++ b/indra/llmessage/llurlrequest.h
@@ -44,6 +44,8 @@
 #include "lliopipe.h"
 #include "llchainio.h"
 #include "llerror.h"
+#include <openssl/x509_vfy.h>
+#include "llcurl.h"
 
 
 extern const std::string CONTEXT_REQUEST;
@@ -72,6 +74,8 @@ class LLURLRequest : public LLIOPipe
 {
 	LOG_CLASS(LLURLRequest);
 public:
+
+	typedef int (* SSLCertVerifyCallback)(X509_STORE_CTX *ctx, void *param);
 	/** 
 	 * @brief This enumeration is for specifying the type of request.
 	 */
@@ -125,7 +129,7 @@ public:
 	 * 
 	 */
 	void setURL(const std::string& url);
-
+	std::string getURL() const;
 	/** 
 	 * @brief Add a header to the http post.
 	 *
@@ -143,8 +147,9 @@ public:
 	 * Set whether request will check that remote server
 	 * certificates are signed by a known root CA when using HTTPS.
 	 */
-	void checkRootCertificate(bool check);
+	void setSSLVerifyCallback(SSLCertVerifyCallback callback, void * param);
 
+	
 	/**
 	 * @brief Return at most size bytes of body.
 	 *
@@ -189,6 +194,7 @@ public:
 	 * @brief Give this pipe a chance to handle a generated error
 	 */
 	virtual EStatus handleError(EStatus status, LLPumpIO* pump);
+
 	
 protected:
 	/** 
@@ -217,6 +223,8 @@ protected:
 	 S32 mRequestTransferedBytes;
 	 S32 mResponseTransferedBytes;
 
+	static CURLcode _sslCtxCallback(CURL * curl, void *sslctx, void *param);
+	
 private:
 	/** 
 	 * @brief Initialize the object. Called during construction.
@@ -364,62 +372,6 @@ protected:
 };
 
 
-/** 
- * @class LLURLRequestClientFactory
- * @brief Template class to build url request based client chains 
- *
- * This class eases construction of a basic sd rpc client. Here is an
- * example of it's use:
- * <code>
- *  class LLUsefulService : public LLService { ... }<br>
- *  LLService::registerCreator(<br>
- *    "useful",<br>
- *    LLService::creator_t(new LLURLRequestClientFactory<LLUsefulService>))<br>
- * </code>
- *
- * This class should work, but I never got around to using/testing it.
- *
- */
-#if 0
-template<class Client>
-class LLURLRequestClientFactory : public LLChainIOFactory
-{
-public:
-	LLURLRequestClientFactory(LLURLRequest::ERequestAction action) {}
-	LLURLRequestClientFactory(
-		LLURLRequest::ERequestAction action,
-		const std::string& fixed_url) :
-		mAction(action),
-		mURL(fixed_url)
-	{
-	}
-	virtual bool build(LLPumpIO::chain_t& chain, LLSD context) const
-	{
-		lldebugs << "LLURLRequestClientFactory::build" << llendl;
-		LLIOPipe::ptr_t service(new Client);
-		chain.push_back(service);
-		LLURLRequest* http(new LLURLRequest(mAction));
-		LLIOPipe::ptr_t http_pipe(http);
-		// *FIX: how do we know the content type?
-		//http->addHeader("Content-Type: text/llsd");
-		if(mURL.empty())
-		{
-			chain.push_back(LLIOPipe::ptr_t(new LLContextURLExtractor(http)));
-		}
-		else
-		{
-			http->setURL(mURL);
-		}
-		chain.push_back(http_pipe);
-		chain.push_back(service);
-		return true;
-	}
-
-protected:
-	LLURLRequest::ERequestAction mAction;
-	std::string mURL;
-};
-#endif
 
 /**
  * External constants