Implement image uploads

global.js

@@ -645,6 +645,32 @@ function oauthPost(endpoint, data, callback)
 	xmlhttp.send(data.toString());
 }
 
+// Make an object storage HTTP PUT request
+function objPut(url, data, progress, callback)
+{
+	var xmlhttp = new XMLHttpRequest();
+	xmlhttp.upload.addEventListener("progress", progress);
+	xmlhttp.open("PUT", url, true);
+	xmlhttp.setRequestHeader("Content-Type", "application/octet-stream");
+
+	xmlhttp.onreadystatechange = function()
+	{
+		if (xmlhttp.readyState != 4)
+			return;
+
+		if (xmlhttp.status >= 400) {
+			console.log("Error " + xmlhttp.status);
+			console.log("PUT " + url);
+			alert("An error occurred during file upload!");
+			return;
+		}
+
+		callback();
+	};
+
+	xmlhttp.send(data);
+}
+
 // Parse URL parameters
 function parseParams()
 {
@@ -766,4 +792,4 @@ function translateKernel(slug, element)
 	apiGet("/linode/kernels/" + slug, callback, null);
 }
 
-export { settings, elements, regionNames, apiDelete, apiGet, apiPost, apiPut, md5, migrateETA, oauthPost, oauthScopes, parseParams, setupHeader, eventTitles, timeString, translateKernel };
+export { settings, elements, regionNames, apiDelete, apiGet, apiPost, apiPut, md5, migrateETA, oauthPost, oauthScopes, objPut, parseParams, setupHeader, eventTitles, timeString, translateKernel };