1 files changed, 112 insertions, 0 deletions
diff --git a/web/src/js/utils.js b/web/src/js/utils.js
new file mode 100644
index 00000000..40575692
--- /dev/null
+++ b/web/src/js/utils.js
@@ -0,0 +1,112 @@
+var $ = require("jquery");
+var _ = require("lodash");
+var actions = require("./actions.js");
+
+window.$ = $;
+window._ = _;
+window.React = require("react");
+
+var Key = {
+    UP: 38,
+    DOWN: 40,
+    PAGE_UP: 33,
+    PAGE_DOWN: 34,
+    HOME: 36,
+    END: 35,
+    LEFT: 37,
+    RIGHT: 39,
+    ENTER: 13,
+    ESC: 27,
+    TAB: 9,
+    SPACE: 32,
+    BACKSPACE: 8,
+    SHIFT: 16
+};
+// Add A-Z
+for (var i = 65; i <= 90; i++) {
+    Key[String.fromCharCode(i)] = i;
+}
+
+
+var formatSize = function (bytes) {
+    if (bytes === 0)
+        return "0";
+    var prefix = ["b", "kb", "mb", "gb", "tb"];
+    for (var i = 0; i < prefix.length; i++) {
+        if (Math.pow(1024, i + 1) > bytes) {
+            break;
+        }
+    }
+    var precision;
+    if (bytes % Math.pow(1024, i) === 0)
+        precision = 0;
+    else
+        precision = 1;
+    return (bytes / Math.pow(1024, i)).toFixed(precision) + prefix[i];
+};
+
+
+var formatTimeDelta = function (milliseconds) {
+    var time = milliseconds;
+    var prefix = ["ms", "s", "min", "h"];
+    var div = [1000, 60, 60];
+    var i = 0;
+    while (Math.abs(time) >= div[i] && i < div.length) {
+        time = time / div[i];
+        i++;
+    }
+    return Math.round(time) + prefix[i];
+};
+
+
+var formatTimeStamp = function (seconds) {
+    var ts = (new Date(seconds * 1000)).toISOString();
+    return ts.replace("T", " ").replace("Z", "");
+};
+
+// At some places, we need to sort strings alphabetically descending,
+// but we can only provide a key function.
+// This beauty "reverses" a JS string.
+var end = String.fromCharCode(0xffff);
+function reverseString(s) {
+    return String.fromCharCode.apply(String,
+            _.map(s.split(""), function (c) {
+                return 0xffff - c.charCodeAt(0);
+            })
+        ) + end;
+}
+
+function getCookie(name) {
+    var r = document.cookie.match(new RegExp("\\b" + name + "=([^;]*)\\b"));
+    return r ? r[1] : undefined;
+}
+var xsrf = $.param({_xsrf: getCookie("_xsrf")});
+
+//Tornado XSRF Protection.
+$.ajaxPrefilter(function (options) {
+    if (["post", "put", "delete"].indexOf(options.type.toLowerCase()) >= 0 && options.url[0] === "/") {
+        if(options.url.indexOf("?") === -1){
+            options.url += "?" + xsrf;
+        } else {
+            options.url += "&" + xsrf;
+        }
+    }
+});
+// Log AJAX Errors
+$(document).ajaxError(function (event, jqXHR, ajaxSettings, thrownError) {
+    if (thrownError === "abort") {
+        return;
+    }
+    var message = jqXHR.responseText;
+    console.error(thrownError, message, arguments);
+    actions.EventLogActions.add_event(thrownError + ": " + message);
+    alert(message);
+});
+
+module.exports = {
+    formatSize: formatSize,
+    formatTimeDelta: formatTimeDelta,
+    formatTimeStamp: formatTimeStamp,
+    reverseString: reverseString,
+    Key: Key,
+};
+\ No newline at end of file