removed all Accept-* headers but Accept-Encoding

libi2pd/HTTP.cpp

@@ -293,11 +293,11 @@ namespace http {
 			}	
 	}	
 	
-	void HTTPReq::RemoveHeader (const std::string& name)
+	void HTTPReq::RemoveHeader (const std::string& name, const std::string& exempt)
 	{
 		for (auto it = headers.begin (); it != headers.end ();)
 		{
-			if (!it->first.compare(0, name.length (), name))	
+			if (!it->first.compare(0, name.length (), name) && it->first != exempt)	
 				it = headers.erase (it);
 			else
 				it++;

libi2pd/HTTP.h

@@ -16,14 +16,17 @@
 #include <string>
 #include <vector>
 
-namespace i2p {
+namespace i2p 
-namespace http {
+{
+namespace http 
+{
   const char CRLF[] = "\r\n";         /**< HTTP line terminator */
   const char HTTP_EOH[] = "\r\n\r\n"; /**< HTTP end-of-headers mark */
   extern const std::vector<std::string> HTTP_METHODS;  /**< list of valid HTTP methods */
   extern const std::vector<std::string> HTTP_VERSIONS; /**< list of valid HTTP versions */
 
-  struct URL {
+  struct URL 
+  {
     std::string schema;
     std::string user;
     std::string pass;
@@ -90,7 +93,8 @@ namespace http {
 
 	void AddHeader (const std::string& name, const std::string& value);
 	void UpdateHeader (const std::string& name, const std::string& value);  
-	void RemoveHeader (const std::string& name);
+	void RemoveHeader (const std::string& name, const std::string& exempt); // remove all headers starting with name, but exempt
+	void RemoveHeader (const std::string& name) { RemoveHeader (name, ""); };
 	std::string GetHeader (const std::string& name) const;  
   };
 

libi2pd_client/HTTPProxy.cpp

@@ -203,10 +203,10 @@ namespace proxy {
 		req.RemoveHeader ("Referer");
 		req.RemoveHeader("Via");
 		req.RemoveHeader("Forwarded");	
-		req.RemoveHeader("Accept-Language"); // TODO: should exclude all Accept-*, but Accept-Encoding
+		req.RemoveHeader("Accept-", "Accept-Encoding"); // Accept-*, but Accept-Encoding
 		/* drop proxy-disclosing headers */
 		req.RemoveHeader("X-Forwarded");
-		req.RemoveHeader("Proxy-");		
+		req.RemoveHeader("Proxy-");	// Proxy-*	
 		/* replace headers */
 		req.UpdateHeader("User-Agent", "MYOB/6.66 (AN/ON)");
 		/* add headers */