match headers using equalsIgnoreCase (#2474)

Should fix: #2131

Author: me-no-dev

libraries/ESP8266WebServer/src/ESP8266WebServer.cpp

@@ -42,6 +42,8 @@ ESP8266WebServer::ESP8266WebServer(IPAddress addr, int port)
 : _server(addr, port)
 , _currentMethod(HTTP_ANY)
 , _currentVersion(0)
+, _currentStatus(HC_NONE)
+, _statusChange(0)
 , _currentHandler(0)
 , _firstHandler(0)
 , _lastHandler(0)
@@ -58,6 +60,8 @@ ESP8266WebServer::ESP8266WebServer(int port)
 : _server(port)
 , _currentMethod(HTTP_ANY)
 , _currentVersion(0)
+, _currentStatus(HC_NONE)
+, _statusChange(0)
 , _currentHandler(0)
 , _firstHandler(0)
 , _lastHandler(0)
@@ -393,7 +397,7 @@ bool ESP8266WebServer::hasArg(String  name) {
 
 String ESP8266WebServer::header(String name) {
   for (int i = 0; i < _headerKeysCount; ++i) {
-    if (_currentHeaders[i].key == name)
+    if (_currentHeaders[i].key.equalsIgnoreCase(name))
       return _currentHeaders[i].value;
   }
   return String();
@@ -428,7 +432,7 @@ int ESP8266WebServer::headers() {
 
 bool ESP8266WebServer::hasHeader(String name) {
   for (int i = 0; i < _headerKeysCount; ++i) {
-    if ((_currentHeaders[i].key == name) &&  (_currentHeaders[i].value.length() > 0))
+    if ((_currentHeaders[i].key.equalsIgnoreCase(name)) &&  (_currentHeaders[i].value.length() > 0))
       return true;
   }
   return false;

libraries/ESP8266WebServer/src/Parsing.cpp

@@ -158,7 +158,7 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
       DEBUG_OUTPUT.println(headerValue);
       #endif
 
-      if (headerName == "Content-Type"){
+      if (headerName.equalsIgnoreCase("Content-Type")){
         if (headerValue.startsWith("text/plain")){
           isForm = false;
         } else if (headerValue.startsWith("application/x-www-form-urlencoded")){
@@ -168,9 +168,9 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
           boundaryStr = headerValue.substring(headerValue.indexOf('=')+1);
           isForm = true;
         }
-      } else if (headerName == "Content-Length"){
+      } else if (headerName.equalsIgnoreCase("Content-Length")){
         contentLength = headerValue.toInt();
-      } else if (headerName == "Host"){
+      } else if (headerName.equalsIgnoreCase("Host")){
         _hostHeader = headerValue;
       }
     }
@@ -237,7 +237,7 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
 	  DEBUG_OUTPUT.println(headerValue);
 	  #endif
 
-	  if (headerName == "Host"){
+	  if (headerName.equalsIgnoreCase("Host")){
         _hostHeader = headerValue;
       }
     }
@@ -257,7 +257,7 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
 
 bool ESP8266WebServer::_collectHeader(const char* headerName, const char* headerValue) {
   for (int i = 0; i < _headerKeysCount; i++) {
-    if (_currentHeaders[i].key==headerName) {
+    if (_currentHeaders[i].key.equalsIgnoreCase(headerName)) {
             _currentHeaders[i].value=headerValue;
             return true;
         }
@@ -389,7 +389,7 @@ bool ESP8266WebServer::_parseForm(WiFiClient& client, String boundary, uint32_t
 
       line = client.readStringUntil('\r');
       client.readStringUntil('\n');
-      if (line.startsWith("Content-Disposition")){
+      if (line.length() > 19 && line.substring(0, 19).equalsIgnoreCase("Content-Disposition")){
         int nameStart = line.indexOf('=');
         if (nameStart != -1){
           argName = line.substring(nameStart+2);
@@ -414,7 +414,7 @@ bool ESP8266WebServer::_parseForm(WiFiClient& client, String boundary, uint32_t
           argType = "text/plain";
           line = client.readStringUntil('\r');
           client.readStringUntil('\n');
-          if (line.startsWith("Content-Type")){
+          if (line.length() > 12 && line.substring(0, 12).equalsIgnoreCase("Content-Type")){
             argType = line.substring(line.indexOf(':')+2);
             //skip next line
             client.readStringUntil('\r');