Merge #14006: Add const modifier to HTTPRequest methods

18c49eb887 http: Add const modifier to HTTPRequest methods (João Barbosa)

Pull request description:

Tree-SHA512: 233617425ff3abc7419817a95337056c190640197c6c4d8b1a0810967d960c0968d02967e16ffbc1af1a2b3117fdc98722bf05e270504d59548e6838fa7f5ffb

src/httpserver.cpp

@@ -536,7 +536,7 @@ HTTPRequest::~HTTPRequest()
     // evhttpd cleans up the request, as long as a reply was sent.
 }
 
-std::pair<bool, std::string> HTTPRequest::GetHeader(const std::string& hdr)
+std::pair<bool, std::string> HTTPRequest::GetHeader(const std::string& hdr) const
 {
     const struct evkeyvalq* headers = evhttp_request_get_input_headers(req);
     assert(headers);
@@ -606,7 +606,7 @@ void HTTPRequest::WriteReply(int nStatus, const std::string& strReply)
     req = nullptr; // transferred back to main thread
 }
 
-CService HTTPRequest::GetPeer()
+CService HTTPRequest::GetPeer() const
 {
     evhttp_connection* con = evhttp_request_get_connection(req);
     CService peer;
@@ -620,12 +620,12 @@ CService HTTPRequest::GetPeer()
     return peer;
 }
 
-std::string HTTPRequest::GetURI()
+std::string HTTPRequest::GetURI() const
 {
     return evhttp_request_get_uri(req);
 }
 
-HTTPRequest::RequestMethod HTTPRequest::GetRequestMethod()
+HTTPRequest::RequestMethod HTTPRequest::GetRequestMethod() const
 {
     switch (evhttp_request_get_command(req)) {
     case EVHTTP_REQ_GET:

src/httpserver.h

@@ -74,21 +74,21 @@ public:
 
     /** Get requested URI.
      */
-    std::string GetURI();
+    std::string GetURI() const;
 
     /** Get CService (address:ip) for the origin of the http request.
      */
-    CService GetPeer();
+    CService GetPeer() const;
 
     /** Get request method.
      */
-    RequestMethod GetRequestMethod();
+    RequestMethod GetRequestMethod() const;
 
     /**
      * Get the request header specified by hdr, or an empty string.
      * Return a pair (isPresent,string).
      */
-    std::pair<bool, std::string> GetHeader(const std::string& hdr);
+    std::pair<bool, std::string> GetHeader(const std::string& hdr) const;
 
     /**
      * Read request body.