Chrome: Move Debug Logs From GitHub Gists to debuglogs.org

In anticipation of GitHub’s deprecation of anonymous gists, we are moving our
debug logs to https://debuglogs.org.

- [x] Publish debug logs to debuglogs.org:
  - ~~Using jQuery v2.1.1-pre results in S3 error about invalid form data
    indicating our jQuery version (added in 2014) doesn’t serialize
    `FormData` correctly.~~
  - [x] Using vanilla XHR ~~results in CORS error indicating our S3 bucket
    doesn’t CORS headers but upload succeeds nonetheless.~~
- [x] Add CORS headers to https://debuglogs.org
- [x] Add CORS headers to S3 bucket (incl. `POST` requests):
      https://s3.amazonaws.com/signal-debug-logs

**Sample log:** https://debuglogs.org/76bf1d7fd9b88ad061d91f79914230e45dc123bc8d169e073f10adb5c1999d4e

background.html

@@ -698,7 +698,7 @@ sudo apt update && sudo apt install signal-desktop
         </div>
         <div class='nav'>
           <div>
-            <a class='link debug-log'>{{ debugLogButton }}</a>
+            <a class='link submit-debug-log'>{{ debugLogButton }}</a>
           </div>
         </div>
       </div>
@@ -717,7 +717,7 @@ sudo apt update && sudo apt install signal-desktop
         </div>
         <div class='nav'>
           <div>
-            <a class='link debug-log'>{{ debugLogButton }}</a>
+            <a class='link submit-debug-log'>{{ debugLogButton }}</a>
           </div>
         </div>
       </div>

js/debugLog.js

@@ -42,6 +42,7 @@
 
     var MAX_MESSAGES = 2000;
     var PHONE_REGEX = /\+\d{7,12}(\d{3})/g;
+    var DEBUGLOGS_BASE_URL = 'https://debuglogs.org';
     var log = new DebugLog();
     if (window.console) {
         console._log = console.log;
@@ -60,13 +61,51 @@
             if (log === undefined) {
                 log = console.get();
             }
-            return new Promise(function(resolve) {
-                $.post('https://api.github.com/gists', textsecure.utils.jsonThing({
-                    "files": { "debugLog.txt": { "content": log } }
-                })).then(function(response) {
-                    console._log('Posted debug log to ', response.html_url);
-                    resolve(response.html_url);
-                }).fail(resolve);
+
+            return new Promise(function(resolve, reject) {
+                $.get(DEBUGLOGS_BASE_URL).then(function (signedForm) {
+                    var url = signedForm.url;
+                    var fields = signedForm.fields;
+
+                    var formData = new FormData();
+
+                    // NOTE: Service expects `key` to come first:
+                    formData.append('key', fields.key);
+                    formData.append('Content-Type', 'text/plain');
+                    for (var key in fields) {
+                        if (key === 'key') {
+                            continue;
+                        }
+                        var value = fields[key];
+                        formData.append(key, value);
+                    }
+
+                    var contentBlob = new Blob([log], { type: 'text/plain' });
+                    formData.append('file', contentBlob);
+
+                    var publishedLogURL = DEBUGLOGS_BASE_URL + '/' + fields.key;
+
+                    var request = new XMLHttpRequest();
+                    request.open('POST', url);
+                    request.onreadystatechange = function (event) {
+                        if (request.readyState !== XMLHttpRequest.DONE) {
+                            return;
+                        }
+
+                        if (request.status !== 204) {
+                            return reject(
+                                new Error('Failed to publish debug log. Status: ' +
+                                    request.statusText + ' (' + request.status + ')'
+                                )
+                            );
+                        }
+
+                        return resolve(publishedLogURL);
+                    };
+                    request.send(formData);
+                }).fail(function () {
+                    reject(new Error('Failed to publish logs'));
+                });
             });
         };
 

js/views/migration_view.js

@@ -145,7 +145,7 @@
       'click .start': 'onClickStart',
       'click .installed': 'onClickInstalled',
       'click .choose': 'onClickChoose',
-      'click .debug-log': 'onClickDebugLog',
+      'click .submit-debug-log': 'onClickDebugLog',
       'click .cancel': 'onClickCancel',
     },
     initialize: function() {