added regex for publish name

public/assets/js/claimPublish.js

@@ -86,11 +86,21 @@ function dragend_handler(ev) {
 /* configure the submit button */
 document.getElementById('publish-submit').addEventListener('click', function(event){
 	event.preventDefault();
+	var name = document.getElementById('publish-name').value;
+	var invalidCharacters = /[^\w,-]/.exec(name);
+	// validate 'name'
+	if (invalidCharacters) {
+		alert(invalidCharacters + ' is not allowed. A-Z, a-z, 0-9, "_" and "-" only.');
+		return;
+	} else if (name.length < 1) {
+		alert("You must enter a name for your claim");
+		return;
+	}
 	// make sure a file was selected
 	if (stagedFiles) {
 		// make sure only 1 file was selected
 		if (stagedFiles.length > 1) {
-			alert("Only one file allowed at a time");
+			alert("Only one file is allowed at a time");
 			return;
 		}
 		// make sure the content type is acceptable
@@ -105,6 +115,8 @@ document.getElementById('publish-submit').addEventListener('click', function(eve
 				alert("Only .png, .jpeg, .gif, and .mp4 files are currently supported");
 				break;
 		}
+	} else {
+		alert("Please select a file");
 	}
 })
 

views/partials/publish.handlebars

@@ -10,7 +10,7 @@
 	<div class="col-right">
 		<textarea id="direct-link-holder" hidden="true">No URL yet</textarea>
 		<div id="publish-active-area">
-			<input type="text" id="publish-name" placeholder="Your claim name" class="form-control">
+			<input type="text" id="publish-name" pattern="[\w,-]" placeholder="Your claim name" class="form-control">
 			<p>
 			<label for="publish-license">License:</label>
 			<br/>