Issue 5880 - Basic issue reporter implementation

issue-reporter.js

Index: issue-reporter.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/issue-reporter.js
@@ -0,0 +1,442 @@
+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-present eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+"use strict";
+
+window.ext = {};
+
+let reportData = new DOMParser().parseFromString("<report></report>", "text/xml");
+
+let pages = {
+  "typeSelectorPage": [initTypeSelector, leaveTypeSelector],
+  "commentPage": [initCommentPage, leaveCommentPage],
+  "sendPage": [initSendPage, leaveSendPage]
+};
+
+document.addEventListener("DOMContentLoaded", () =>
+{
+  document.getElementById("cancel").addEventListener("click", () =>
+  {
+    window.close();
+  });
+
+  document.getElementById("continue").addEventListener("click", () =>
+  {
+    if (!document.getElementById("continue").disabled)
+      pages[getCurrentPage()][1]();
+  });
+
+  document.addEventListener("keydown", event =>
+  {
+    let blacklistedElements = new Set(["textarea", "button", "a"])
+
+    if (event.key == "Enter" && !blacklistedElements.has(event.target.localName))
+      document.getElementById("continue").click();
+    else if (event.key == "Escape")
+      document.getElementById("cancel").click();
+  });
+
+  browser.runtime.sendMessage({
+    type: "app.get",
+    what: "doclink",
+    link: "reporter_privacy"
+  }).then(url =>
+  {
+    document.getElementById("privacyPolicy").href = url;
+  });
+
+  initDataCollector();
+});
+
+function getCurrentPage()
+{
+  return document.querySelector(".page:not([hidden])").id;
+}
+
+function setCurrentPage(pageId)
+{
+  if (!pages.hasOwnProperty(pageId))
+    return;
+
+  let previousPage = document.querySelector(".page:not([hidden])");
+  if (previousPage)
+    previousPage.hidden = true;
+
+  document.getElementById(pageId).hidden = false;
+  pages[pageId][0]();
+}
+
+function censorURL(url)
+{
+  return url.replace(/([?;&\/#][^?;&\/#]+?=)[^?;&\/#]+/g, "$1*");
+}
+
+function encodeHTML(str)
+{
+  return str.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;");
+}
+
+function serializeReportData()
+{
+  let result = new XMLSerializer().serializeToString(reportData);
+
+  // Insert line breaks before each new tag
+  result = result.replace(/(<[^\/]([^"<>]*|"[^"]*")*>)/g, "\n$1");
+  result = result.replace(/^\n+/, "");
+  return result;
+}
+
+function retrieveAddonInfo()
+{
+  let element = reportData.createElement("adblock-plus");
+  return browser.runtime.sendMessage({
+    type: "app.get",
+    what: "addonVersion"
+  }).then(addonVersion =>
+  {
+    element.setAttribute("version", addonVersion);
+    return browser.runtime.sendMessage({
+      type: "app.get",
+      what: "localeInfo"
+    });
+  }).then(({locale}) =>
+  {
+    element.setAttribute("locale", locale);
+    reportData.documentElement.appendChild(element);
+  });
+}
+
+function retrieveApplicationInfo()
+{
+  let element = reportData.createElement("application");
+  return browser.runtime.sendMessage({
+    type: "app.get",
+    what: "application"
+  }).then(application =>
+  {
+    element.setAttribute("name", application);
+    return browser.runtime.sendMessage({
+      type: "app.get",
+      what: "applicationVersion"
+    });
+  }).then(applicationVersion =>
+  {
+    element.setAttribute("version", applicationVersion);
+    element.setAttribute("userAgent", navigator.userAgent);
+    reportData.documentElement.appendChild(element);
+  });
+}
+
+function retrievePlatformInfo()
+{
+  let element = reportData.createElement("platform");
+  return browser.runtime.sendMessage({
+    type: "app.get",
+    what: "platform"
+  }).then(platform =>
+  {
+    element.setAttribute("name", platform);
+    return browser.runtime.sendMessage({
+      type: "app.get",
+      what: "platformVersion"
+    });
+  }).then(platformVersion =>
+  {
+    element.setAttribute("version", platformVersion);
+    reportData.documentElement.appendChild(element);
+  });
+}
+
+function retrieveTabURL(tabId)
+{
+  return browser.tabs.get(tabId).then(tab =>
+  {
+    let element = reportData.createElement("window");
+    if (tab.url)
+      element.setAttribute("url", censorURL(tab.url));
+    reportData.documentElement.appendChild(element);
+  });
+}
+
+function retrieveSubscriptions()
+{
+  return browser.runtime.sendMessage({
+    type: "subscriptions.get",
+    ignoreDisabled: true,
+    downloadable: true
+  }).then(subscriptions =>
+  {
+    let element = reportData.createElement("subscriptions");
+    for (let subscription of subscriptions)
+    {
+      if (!/^(http|https|ftp):/.test(subscription.url))
+        continue;
+
+      let now = Math.round(Date.now() / 1000);
+      let subscriptionElement = reportData.createElement("subscription");
+      subscriptionElement.setAttribute("id", subscription.url);
+      if (subscription.lastDownload)
+        subscriptionElement.setAttribute("lastDownloadAttempt", subscription.lastDownload - now);
+      subscriptionElement.setAttribute("downloadStatus", subscription.downloadStatus);
+      element.appendChild(subscriptionElement);
+    }
+    reportData.documentElement.appendChild(element);
+  });
+}
+
+function initDataCollector()
+{
+  Promise.resolve().then(() =>
+  {
+    let tabId = parseInt(location.search.replace(/^\?/, ""), 10) || 0;
+    let handlers = [
+      retrieveAddonInfo(),
+      retrieveApplicationInfo(),
+      retrievePlatformInfo(),
+      retrieveTabURL(tabId),
+      retrieveSubscriptions()
+    ];
+    return Promise.all(handlers);
+  }).then(() =>
+  {
+    setCurrentPage("typeSelectorPage");
+  }).catch(e =>
+  {
+    if (!e.name && e.message)
+      e = e.message;
+    alert(e);
+    window.close();
+  });
+}
+
+function initTypeSelector()
+{
+  document.getElementById("typeFalsePositive").focus();
+
+
+  for (let checkbox of document.querySelectorAll("input[name='type']"))
+  {
+    checkbox.addEventListener("click", () =>
+    {
+      if (document.querySelector("input[name='type']:checked"))
+        document.getElementById("continue").disabled = false;
+    });
+  }
+}
+
+function leaveTypeSelector()
+{
+  let checkbox = document.querySelector("input[name='type']:checked");
+  reportData.documentElement.setAttribute("type", checkbox.value);
+  setCurrentPage("commentPage");
+}
+
+function initCommentPage()
+{
+  let continueButton = document.getElementById("continue");
+  continueButton.disabled = true;
+  continueButton.textContent = browser.i18n.getMessage("issueReporter_sendButton_label");
+
+  let emailElement = reportData.createElement("email");
+  let emailField = document.getElementById("email");
+  let anonymousSubmissionField = document.getElementById("anonymousSubmission");
+  let validateEmail = () =>
+  {
+    document.getElementById("anonymousSubmissionWarning").setAttribute("data-invisible", !anonymousSubmissionField.checked);
+    if (anonymousSubmissionField.checked)
+    {
+      emailField.value = "";
+      emailField.disabled = true;
+      continueButton.disabled = false;
+      if (emailElement.parentNode)
+        emailElement.parentNode.removeChild(emailElement);
+    }
+    else
+    {
+      emailField.disabled = false;
+
+      let value = emailField.value.trim();
+      emailElement.textContent = value;
+      reportData.documentElement.appendChild(emailElement);
+      continueButton.disabled = value == "" || !emailField.validity.valid;
+    }
+  };
+  emailField.addEventListener("input", validateEmail);
+  anonymousSubmissionField.addEventListener("click", validateEmail);
+
+  let commentElement = reportData.createElement("comment");
+  document.getElementById("comment").addEventListener("input", event =>
+  {
+    if (commentElement.parentNode)
+      commentElement.parentNode.removeChild(commentElement);
+
+    let value = event.target.value.trim();
+    commentElement.textContent = value.substr(0, 1000);
+    if (value)
+      reportData.documentElement.appendChild(commentElement);
+    document.getElementById("commentLengthWarning").setAttribute("data-invisible", value.length <= 1000);
+  });
+
+  document.getElementById("showData").addEventListener("click", event =>
+  {
+    event.preventDefault();
+
+    // window.open() won't open data: URIs in Chrome
+    browser.tabs.getCurrent().then(tab =>
+    {
+      browser.tabs.create({
+        url: "data:text/xml;charset=utf-8," + encodeURIComponent(serializeReportData()),
+        openerTabId: tab.id
+      });
+    })
+  });
+
+  emailField.focus();
+}
+
+function leaveCommentPage()
+{
+  setCurrentPage("sendPage");
+}
+
+function initSendPage()
+{
+  document.getElementById("cancel").hidden = true;
+
+  let continueButton = document.getElementById("continue");
+  continueButton.textContent = browser.i18n.getMessage("issueReporter_doneButton_label");
+  continueButton.disabled = true;
+
+  let uuid = new Uint16Array(8);
+  window.crypto.getRandomValues(uuid);
+  uuid[3] = uuid[3] & 0x0FFF | 0x4000;  // version 4
+  uuid[4] = uuid[4] & 0x3FFF | 0x8000;  // variant 1
+
+  let uuidString = "";
+  for (let i = 0; i < uuid.length; i++)
+  {
+    let component = uuid[i].toString(16);
+    while (component.length < 4)
+      component = "0" + component;
+    uuidString += component;
+    if (i >= 1 && i<= 4)
+      uuidString += "-";
+  }
+
+  let params = new URLSearchParams({
+    version: 1,
+    guid: uuidString,
+    lang: reportData.getElementsByTagName("adblock-plus")[0].getAttribute("locale")
+  });
+  let url = "https://reports.adblockplus.org/submitReport?" + params;
+
+  let reportSent = event =>
+  {
+    let success = false;
+    let errorMessage = browser.i18n.getMessage("filters_subscription_lastDownload_connectionError");
+    try
+    {
+      success = request.status == 200;
+      if (request.status != 0)
+        errorMessage = request.status + " " + request.statusText;
+    }
+    catch (e)
+    {
+      // Getting request status might throw if no connection was established
+    }
+
+    let result;
+    try
+    {
+      result = request.responseText;
+    }
+    catch (e)
+    {
+      result = "";
+    }
+
+    if (!success)
+    {
+      let errorElement = document.getElementById("error");
+      let template = browser.i18n.getMessage("issueReporter_errorMessage").replace(/[\r\n\s]+/g, " ");
+
+      let [, beforeLink, linkText, afterLink] = /(.*)\[link\](.*)\[\/link\](.*)/.exec(template) || [null, "", template, ""];
+      beforeLink = beforeLink.replace(/\?1\?/g, errorMessage);
+      afterLink = afterLink.replace(/\?1\?/g, errorMessage);
+
+      while (errorElement.firstChild)
+        errorElement.removeChild(errorElement.firstChild);
+
+      let link = document.createElement("a");
+      link.textContent = linkText;
+      browser.runtime.sendMessage({
+        type: "app.get",
+        what: "doclink",
+        link: "reporter_connect_issue"
+      }).then(url =>
+      {
+        link.href = url;
+      });
+
+
+      errorElement.appendChild(document.createTextNode(beforeLink));
+      errorElement.appendChild(link);
+      errorElement.appendChild(document.createTextNode(afterLink));
+
+      errorElement.hidden = false;
+    }
+
+    result = result.replace(/%CONFIRMATION%/g, encodeHTML(browser.i18n.getMessage("issueReporter_confirmationMessage")));
+    result = result.replace(/%KNOWNISSUE%/g, encodeHTML(browser.i18n.getMessage("issueReporter_knownIssueMessage")));
+    result = result.replace(/(<html)\b/, '$1 dir="' + encodeHTML(window.getComputedStyle(document.documentElement, "").direction + '"'));
+
+    document.getElementById("sendReportMessage").hidden = true;
+    document.getElementById("sendingProgressContainer").hidden = true;
+
+    let resultFrame = document.getElementById("result");
+    resultFrame.setAttribute("src", "data:text/html;charset=utf-8," + encodeURIComponent(result));
+    resultFrame.hidden = false;
+
+    document.getElementById("continue").disabled = false;
+  };
+
+  let request = new XMLHttpRequest();
+  request.open("POST", url);
+  request.setRequestHeader("Content-Type", "text/xml");
+  request.setRequestHeader("X-Adblock-Plus", "1");
+  request.addEventListener("load", reportSent);
+  request.addEventListener("error", reportSent);
+  request.upload.addEventListener("progress", event =>
+  {
+    if (!event.lengthComputable)
+      return;
+
+    let progress = Math.round(event.loaded / event.total * 100);
+    if (event.loaded > 0)
+    {
+      let progress = document.getElementById("sendingProgress");
+      progress.max = event.total;
+      progress.value = event.loaded;
+    }
+  });
+  request.send(serializeReportData());
+}
+
+function leaveSendPage()
+{
+  window.close();
+}