openvidu-server: mandatory alphanumeric recording names

openvidu-server/src/main/java/io/openvidu/server/rest/SessionRestController.java

@@ -144,7 +144,7 @@ public class SessionRestController {
 				if (customSessionId != null && !customSessionId.isEmpty()) {
 					if (!sessionManager.formatChecker.isValidCustomSessionId(customSessionId)) {
 						return this.generateErrorResponse(
-								"Parameter \"customSessionId\" is wrong. Must be an alphanumeric string",
+								"Parameter 'customSessionId' is wrong. Must be an alphanumeric string [a-zA-Z0-9_-]",
 								"/api/sessions", HttpStatus.BAD_REQUEST);
 					}
 					builder = builder.customSessionId(customSessionId);
@@ -485,28 +485,36 @@ public class SessionRestController {
 					HttpStatus.BAD_REQUEST);
 		}
 
+		if (name != null && !name.isEmpty()) {
+			if (!sessionManager.formatChecker.isValidRecordingName(name)) {
+				return this.generateErrorResponse(
+						"Parameter 'name' is wrong. Must be an alphanumeric string [a-zA-Z0-9_-]", "/api/sessions",
+						HttpStatus.BAD_REQUEST);
+			}
+		}
+
 		OutputMode finalOutputMode = OutputMode.COMPOSED;
 		RecordingLayout recordingLayout = null;
 		if (outputModeString != null && !outputModeString.isEmpty()) {
 			try {
 				finalOutputMode = OutputMode.valueOf(outputModeString);
 			} catch (Exception e) {
-				return this.generateErrorResponse("Type error in some parameter", "/api/recordings/start",
+				return this.generateErrorResponse("Type error in parameter 'outputMode'", "/api/recordings/start",
 						HttpStatus.BAD_REQUEST);
 			}
 		}
 		if (RecordingUtils.IS_COMPOSED(finalOutputMode)) {
 			if (resolution != null && !sessionManager.formatChecker.isAcceptableRecordingResolution(resolution)) {
 				return this.generateErrorResponse(
-						"Wrong \"resolution\" parameter. Acceptable values from 100 to 1999 for both width and height",
+						"Wrong 'resolution' parameter. Acceptable values from 100 to 1999 for both width and height",
 						"/api/recordings/start", HttpStatus.UNPROCESSABLE_ENTITY);
 			}
 			if (recordingLayoutString != null && !recordingLayoutString.isEmpty()) {
 				try {
 					recordingLayout = RecordingLayout.valueOf(recordingLayoutString);
 				} catch (Exception e) {
-					return this.generateErrorResponse("Type error in some parameter", "/api/recordings/start",
+					return this.generateErrorResponse("Type error in parameter 'recordingLayout'",
-							HttpStatus.BAD_REQUEST);
+							"/api/recordings/start", HttpStatus.BAD_REQUEST);
 				}
 			}
 		}

openvidu-server/src/main/java/io/openvidu/server/utils/FormatChecker.java

@@ -30,8 +30,15 @@ public class FormatChecker {
 	}
 
 	public boolean isValidCustomSessionId(String customSessionId) {
-		// Alphanumeric string
+		return isValidAlphanumeric(customSessionId);
-		return customSessionId.matches("[a-zA-Z0-9_-]+");
+	}
+
+	public boolean isValidRecordingName(String recodingName) {
+		return isValidAlphanumeric(recodingName);
+	}
+
+	private boolean isValidAlphanumeric(String str) {
+		return str.matches("[a-zA-Z0-9_-]+");
 	}
 
 }