summaryrefslogtreecommitdiffstats
path: root/browser/components/ion/content/ion.js
blob: ec075d37136ccb11c4bdaf6385635be42f965534 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/**
 * Control panel for the Ion project, formerly known as Pioneer.
 * This lives in `about:ion` and provides a UI for users to un/enroll in the
 * overall program, and to un/enroll from individual studies.
 *
 * NOTE - prefs and Telemetry both still mention Pioneer for backwards-compatibility,
 *        this may change in the future.
 */

const { AddonManager } = ChromeUtils.importESModule(
  "resource://gre/modules/AddonManager.sys.mjs"
);

const { RemoteSettings } = ChromeUtils.importESModule(
  "resource://services-settings/remote-settings.sys.mjs"
);

const { TelemetryController } = ChromeUtils.importESModule(
  "resource://gre/modules/TelemetryController.sys.mjs"
);

let parserUtils = Cc["@mozilla.org/parserutils;1"].getService(
  Ci.nsIParserUtils
);

const PREF_ION_ID = "toolkit.telemetry.pioneerId";
const PREF_ION_NEW_STUDIES_AVAILABLE =
  "toolkit.telemetry.pioneer-new-studies-available";
const PREF_ION_COMPLETED_STUDIES =
  "toolkit.telemetry.pioneer-completed-studies";

/**
 * Remote Settings keys for general content, and available studies.
 */
const CONTENT_COLLECTION_KEY = "pioneer-content-v2";
const STUDY_ADDON_COLLECTION_KEY = "pioneer-study-addons-v2";

const STUDY_LEAVE_REASONS = {
  USER_ABANDONED: "user-abandoned",
  STUDY_ENDED: "study-ended",
};

const PREF_TEST_CACHED_CONTENT = "toolkit.pioneer.testCachedContent";
const PREF_TEST_CACHED_ADDONS = "toolkit.pioneer.testCachedAddons";
const PREF_TEST_ADDONS = "toolkit.pioneer.testAddons";

/**
 * Use the in-tree HTML Sanitizer to ensure that HTML from remote-settings is safe to use.
 * Note that RS does use content-signing, we're doing this extra step as an in-depth security measure.
 *
 * @param {string} htmlString - unsanitized HTML (content-signed by remote-settings)
 * @returns {DocumentFragment} - sanitized DocumentFragment
 */
function sanitizeHtml(htmlString) {
  const content = document.createElement("div");
  const contentFragment = parserUtils.parseFragment(
    htmlString,
    Ci.nsIParserUtils.SanitizerDropForms |
      Ci.nsIParserUtils.SanitizerAllowStyle |
      Ci.nsIParserUtils.SanitizerLogRemovals,
    false,
    Services.io.newURI("about:ion"),
    content
  );

  return contentFragment;
}

function showEnrollmentStatus() {
  const ionId = Services.prefs.getStringPref(PREF_ION_ID, null);

  const enrollmentButton = document.getElementById("enrollment-button");

  document.l10n.setAttributes(
    enrollmentButton,
    `ion-${ionId ? "un" : ""}enrollment-button`
  );
  enrollmentButton.classList.toggle("primary", !ionId);

  // collapse content above the fold if enrolled, otherwise open it.
  for (const section of ["details", "data"]) {
    const details = document.getElementById(section);
    if (ionId) {
      details.removeAttribute("open");
    } else {
      details.setAttribute("open", true);
    }
  }
}

function toggleContentBasedOnLocale() {
  const requestedLocale = Services.locale.requestedLocale;
  if (requestedLocale !== "en-US") {
    const localeNotificationBar = document.getElementById(
      "locale-notification"
    );
    localeNotificationBar.style.display = "block";

    const reportContent = document.getElementById("report-content");
    reportContent.style.display = "none";
  }
}

async function toggleEnrolled(studyAddonId, cachedAddons) {
  let addon;
  let install;

  const cachedAddon = cachedAddons.find(a => a.addon_id == studyAddonId);

  if (Cu.isInAutomation) {
    install = {
      install: async () => {
        let testAddons = Services.prefs.getStringPref(PREF_TEST_ADDONS, "[]");
        testAddons = JSON.parse(testAddons);

        testAddons.push(studyAddonId);
        Services.prefs.setStringPref(
          PREF_TEST_ADDONS,
          JSON.stringify(testAddons)
        );
      },
    };

    let testAddons = Services.prefs.getStringPref(PREF_TEST_ADDONS, "[]");
    testAddons = JSON.parse(testAddons);

    for (const testAddon of testAddons) {
      if (testAddon == studyAddonId) {
        addon = {};
        addon.uninstall = () => {
          Services.prefs.setStringPref(
            PREF_TEST_ADDONS,
            JSON.stringify(testAddons.filter(a => a.id != testAddon.id))
          );
        };
      }
    }
  } else {
    addon = await AddonManager.getAddonByID(studyAddonId);
    install = await AddonManager.getInstallForURL(cachedAddon.sourceURI.spec);
  }

  const completedStudies = Services.prefs.getStringPref(
    PREF_ION_COMPLETED_STUDIES,
    "{}"
  );

  const study = document.querySelector(`.card[id="${cachedAddon.addon_id}"`);
  const joinBtn = study.querySelector(".join-button");

  if (addon) {
    joinBtn.disabled = true;
    await addon.uninstall();
    await sendDeletionPing(studyAddonId);

    document.l10n.setAttributes(joinBtn, "ion-join-study");
    joinBtn.disabled = false;

    // Record that the user abandoned this study, since it may not be re-join-able.
    if (completedStudies) {
      const studies = JSON.parse(completedStudies);
      studies[studyAddonId] = STUDY_LEAVE_REASONS.USER_ABANDONED;
      Services.prefs.setStringPref(
        PREF_ION_COMPLETED_STUDIES,
        JSON.stringify(studies)
      );
    }
  } else {
    // Check if this study is re-join-able before enrollment.
    const studies = JSON.parse(completedStudies);
    if (studyAddonId in studies) {
      if (
        "canRejoin" in cachedAddons[studyAddonId] &&
        cachedAddons[studyAddonId].canRejoin === false
      ) {
        console.error(
          `Cannot rejoin ended study ${studyAddonId}, reason: ${studies[studyAddonId]}`
        );
        return;
      }
    }
    joinBtn.disabled = true;
    await install.install();
    document.l10n.setAttributes(joinBtn, "ion-leave-study");
    joinBtn.disabled = false;

    // Send an enrollment ping for this study. Note that this could be sent again
    // if we are re-joining.
    await sendEnrollmentPing(studyAddonId);
  }

  await updateStudy(cachedAddon.addon_id);
}

async function showAvailableStudies(cachedAddons) {
  const ionId = Services.prefs.getStringPref(PREF_ION_ID, null);
  const defaultAddons = cachedAddons.filter(a => a.isDefault);
  if (ionId) {
    for (const defaultAddon of defaultAddons) {
      let addon;
      let install;
      if (Cu.isInAutomation) {
        install = {
          install: async () => {
            if (
              defaultAddon.addon_id == "ion-v2-bad-default-example@mozilla.org"
            ) {
              throw new Error("Bad test default add-on");
            }
          },
        };
      } else {
        addon = await AddonManager.getAddonByID(defaultAddon.addon_id);
        install = await AddonManager.getInstallForURL(
          defaultAddon.sourceURI.spec
        );
      }

      if (!addon) {
        // Any default add-ons are required, try to reinstall.
        await install.install();
      }
    }
  }

  const studyAddons = cachedAddons.filter(a => !a.isDefault);
  for (const cachedAddon of studyAddons) {
    if (!cachedAddon) {
      console.error(
        `about:ion - Study addon ID not found in cache: ${studyAddonId}`
      );
      return;
    }

    const studyAddonId = cachedAddon.addon_id;

    const study = document.createElement("div");
    study.setAttribute("id", studyAddonId);
    study.setAttribute("class", "card card-no-hover");

    if (cachedAddon.icons && 32 in cachedAddon.icons) {
      const iconName = document.createElement("img");
      iconName.setAttribute("class", "card-icon");
      iconName.setAttribute("src", cachedAddon.icons[32]);
      study.appendChild(iconName);
    }

    const studyBody = document.createElement("div");
    studyBody.classList.add("card-body");
    study.appendChild(studyBody);

    const studyName = document.createElement("h3");
    studyName.setAttribute("class", "card-name");
    studyName.textContent = cachedAddon.name;
    studyBody.appendChild(studyName);

    const studyAuthor = document.createElement("span");
    studyAuthor.setAttribute("class", "card-author");
    studyAuthor.textContent = cachedAddon.authors.name;
    studyBody.appendChild(studyAuthor);

    const actions = document.createElement("div");
    actions.classList.add("card-actions");
    study.appendChild(actions);

    const joinBtn = document.createElement("button");
    joinBtn.setAttribute("id", `${studyAddonId}-join-button`);
    joinBtn.classList.add("primary");
    joinBtn.classList.add("join-button");
    document.l10n.setAttributes(joinBtn, "ion-join-study");

    joinBtn.addEventListener("click", async () => {
      let addon;
      if (Cu.isInAutomation) {
        const testAddons = Services.prefs.getStringPref(PREF_TEST_ADDONS, "[]");
        for (const testAddon of JSON.parse(testAddons)) {
          if (testAddon == studyAddonId) {
            addon = {};
            addon.uninstall = () => {
              Services.prefs.setStringPref(PREF_TEST_ADDONS, "[]");
            };
          }
        }
      } else {
        addon = await AddonManager.getAddonByID(studyAddonId);
      }
      let joinOrLeave = addon ? "leave" : "join";
      let dialog = document.getElementById(
        `${joinOrLeave}-study-consent-dialog`
      );
      dialog.setAttribute("addon-id", cachedAddon.addon_id);
      const consentText = dialog.querySelector(
        `[id=${joinOrLeave}-study-consent]`
      );

      // Clears out any existing children with a single #text node
      consentText.textContent = "";

      const contentFragment = sanitizeHtml(
        cachedAddon[`${joinOrLeave}StudyConsent`]
      );
      consentText.appendChild(contentFragment);

      dialog.showModal();
      dialog.scrollTop = 0;

      const openEvent = new Event("open");
      dialog.dispatchEvent(openEvent);
    });
    actions.appendChild(joinBtn);

    const studyDesc = document.createElement("div");
    studyDesc.setAttribute("class", "card-description");

    const contentFragment = sanitizeHtml(cachedAddon.description);
    studyDesc.appendChild(contentFragment);

    study.appendChild(studyDesc);

    const studyDataCollected = document.createElement("div");
    studyDataCollected.setAttribute("class", "card-data-collected");
    study.appendChild(studyDataCollected);

    const dataCollectionDetailsHeader = document.createElement("p");
    dataCollectionDetailsHeader.textContent = "This study will collect:";
    studyDataCollected.appendChild(dataCollectionDetailsHeader);

    const dataCollectionDetails = document.createElement("ul");
    for (const dataCollectionDetail of cachedAddon.dataCollectionDetails) {
      const detailsBullet = document.createElement("li");
      detailsBullet.textContent = dataCollectionDetail;
      dataCollectionDetails.append(detailsBullet);
    }
    studyDataCollected.appendChild(dataCollectionDetails);

    const availableStudies = document.getElementById("available-studies");
    availableStudies.appendChild(study);

    await updateStudy(studyAddonId);
  }

  const availableStudies = document.getElementById("header-available-studies");
  document.l10n.setAttributes(availableStudies, "ion-current-studies");
}

async function updateStudy(studyAddonId) {
  let addon;
  if (Cu.isInAutomation) {
    const testAddons = Services.prefs.getStringPref(PREF_TEST_ADDONS, "[]");
    for (const testAddon of JSON.parse(testAddons)) {
      if (testAddon == studyAddonId) {
        addon = {
          uninstall() {},
        };
      }
    }
  } else {
    addon = await AddonManager.getAddonByID(studyAddonId);
  }

  const study = document.querySelector(`.card[id="${studyAddonId}"`);

  const joinBtn = study.querySelector(".join-button");

  const ionId = Services.prefs.getStringPref(PREF_ION_ID, null);

  const completedStudies = Services.prefs.getStringPref(
    PREF_ION_COMPLETED_STUDIES,
    "{}"
  );

  const studies = JSON.parse(completedStudies);
  if (studyAddonId in studies) {
    study.style.opacity = 0.5;
    joinBtn.disabled = true;
    document.l10n.setAttributes(joinBtn, "ion-ended-study");
    return;
  }

  if (ionId) {
    study.style.opacity = 1;
    joinBtn.disabled = false;

    if (addon) {
      document.l10n.setAttributes(joinBtn, "ion-leave-study");
    } else {
      document.l10n.setAttributes(joinBtn, "ion-join-study");
    }
  } else {
    document.l10n.setAttributes(joinBtn, "ion-study-prompt");
    study.style.opacity = 0.5;
    joinBtn.disabled = true;
  }
}

// equivalent to what we use for Telemetry IDs
// https://searchfox.org/mozilla-central/rev/9193635dca8cfdcb68f114306194ffc860456044/toolkit/components/telemetry/app/TelemetryUtils.jsm#222
function generateUUID() {
  let str = Services.uuid.generateUUID().toString();
  return str.substring(1, str.length - 1);
}

async function setup(cachedAddons) {
  document
    .getElementById("enrollment-button")
    .addEventListener("click", async () => {
      const ionId = Services.prefs.getStringPref(PREF_ION_ID, null);

      if (ionId) {
        let dialog = document.getElementById("leave-ion-consent-dialog");
        dialog.showModal();
        dialog.scrollTop = 0;
      } else {
        let dialog = document.getElementById("join-ion-consent-dialog");
        dialog.showModal();
        dialog.scrollTop = 0;
      }
    });

  document
    .getElementById("join-ion-cancel-dialog-button")
    .addEventListener("click", () =>
      document.getElementById("join-ion-consent-dialog").close()
    );
  document
    .getElementById("leave-ion-cancel-dialog-button")
    .addEventListener("click", () =>
      document.getElementById("leave-ion-consent-dialog").close()
    );
  document
    .getElementById("join-study-cancel-dialog-button")
    .addEventListener("click", () =>
      document.getElementById("join-study-consent-dialog").close()
    );
  document
    .getElementById("leave-study-cancel-dialog-button")
    .addEventListener("click", () =>
      document.getElementById("leave-study-consent-dialog").close()
    );

  document
    .getElementById("join-ion-accept-dialog-button")
    .addEventListener("click", async event => {
      const ionId = Services.prefs.getStringPref(PREF_ION_ID, null);

      if (!ionId) {
        let uuid = generateUUID();
        Services.prefs.setStringPref(PREF_ION_ID, uuid);
        for (const cachedAddon of cachedAddons) {
          if (cachedAddon.isDefault) {
            let install;
            if (Cu.isInAutomation) {
              install = {
                install: async () => {
                  if (
                    cachedAddon.addon_id ==
                    "ion-v2-bad-default-example@mozilla.org"
                  ) {
                    throw new Error("Bad test default add-on");
                  }
                },
              };
            } else {
              install = await AddonManager.getInstallForURL(
                cachedAddon.sourceURI.spec
              );
            }

            try {
              await install.install();
            } catch (ex) {
              // No need to throw here, we'll try again before letting users enroll in any studies.
              console.error(
                `Could not install default add-on ${cachedAddon.addon_id}`
              );
              const availableStudies =
                document.getElementById("available-studies");
              document.l10n.setAttributes(
                availableStudies,
                "ion-no-current-studies"
              );
            }
          }
          const study = document.getElementById(cachedAddon.addon_id);
          if (study) {
            await updateStudy(cachedAddon.addon_id);
          }
        }
        document.querySelector("dialog").close();
      }
      // A this point we should have a valid ion id, so we should be able to send
      // the enrollment ping.
      await sendEnrollmentPing();

      showEnrollmentStatus();
    });

  document
    .getElementById("leave-ion-accept-dialog-button")
    .addEventListener("click", async event => {
      const completedStudies = Services.prefs.getStringPref(
        PREF_ION_COMPLETED_STUDIES,
        "{}"
      );
      const studies = JSON.parse(completedStudies);

      // Send a deletion ping for all completed studies the user has been a part of.
      for (const studyAddonId in studies) {
        await sendDeletionPing(studyAddonId);
      }

      Services.prefs.clearUserPref(PREF_ION_COMPLETED_STUDIES);

      for (const cachedAddon of cachedAddons) {
        // Record any studies that have been marked as concluded on the server, in case they re-enroll.
        if ("studyEnded" in cachedAddon && cachedAddon.studyEnded === true) {
          studies[cachedAddon.addon_id] = STUDY_LEAVE_REASONS.STUDY_ENDED;

          Services.prefs.setStringPref(
            PREF_ION_COMPLETED_STUDIES,
            JSON.stringify(studies)
          );
        }

        let addon;
        if (Cu.isInAutomation) {
          addon = {};
          addon.id = cachedAddon.addon_id;
          addon.uninstall = () => {
            let testAddons = Services.prefs.getStringPref(
              PREF_TEST_ADDONS,
              "[]"
            );
            testAddons = JSON.parse(testAddons);

            Services.prefs.setStringPref(
              PREF_TEST_ADDONS,
              JSON.stringify(
                testAddons.filter(a => a.id != cachedAddon.addon_id)
              )
            );
          };
        } else {
          addon = await AddonManager.getAddonByID(cachedAddon.addon_id);
        }
        if (addon) {
          await sendDeletionPing(addon.id);
          await addon.uninstall();
        }
      }

      Services.prefs.clearUserPref(PREF_ION_ID);
      for (const cachedAddon of cachedAddons) {
        const study = document.getElementById(cachedAddon.addon_id);
        if (study) {
          await updateStudy(cachedAddon.addon_id);
        }
      }

      document.getElementById("leave-ion-consent-dialog").close();
      showEnrollmentStatus();
    });

  document
    .getElementById("join-study-accept-dialog-button")
    .addEventListener("click", async event => {
      const dialog = document.getElementById("join-study-consent-dialog");
      const studyAddonId = dialog.getAttribute("addon-id");
      toggleEnrolled(studyAddonId, cachedAddons).then(dialog.close());
    });

  document
    .getElementById("leave-study-accept-dialog-button")
    .addEventListener("click", async event => {
      const dialog = document.getElementById("leave-study-consent-dialog");
      const studyAddonId = dialog.getAttribute("addon-id");
      await toggleEnrolled(studyAddonId, cachedAddons).then(dialog.close());
    });

  const onAddonEvent = async addon => {
    for (const cachedAddon of cachedAddons) {
      if (cachedAddon.addon_id == addon.id) {
        await updateStudy(addon.id);
      }
    }
  };

  const addonsListener = {
    onEnabled: onAddonEvent,
    onDisabled: onAddonEvent,
    onInstalled: onAddonEvent,
    onUninstalled: onAddonEvent,
  };
  AddonManager.addAddonListener(addonsListener);

  window.addEventListener("unload", event => {
    AddonManager.removeAddonListener(addonsListener);
  });
}

function removeBadge() {
  Services.prefs.setBoolPref(PREF_ION_NEW_STUDIES_AVAILABLE, false);

  for (let win of Services.wm.getEnumerator("navigator:browser")) {
    const badge = win.document
      .getElementById("ion-button")
      .querySelector(".toolbarbutton-badge");
    badge.classList.remove("feature-callout");
  }
}

// Updates Ion HTML page contents from RemoteSettings.
function updateContents(contents) {
  for (const section of [
    "title",
    "summary",
    "details",
    "data",
    "joinIonConsent",
    "leaveIonConsent",
  ]) {
    if (contents && section in contents) {
      // Generate a corresponding dom-id style ID for a camel-case domId style JS attribute.
      // Dynamically set the tag type based on which section is getting updated.
      const domId = section
        .split(/(?=[A-Z])/)
        .join("-")
        .toLowerCase();
      // Clears out any existing children with a single #text node.
      document.getElementById(domId).textContent = "";

      const contentFragment = sanitizeHtml(contents[section]);
      document.getElementById(domId).appendChild(contentFragment);
    }
  }
}

document.addEventListener("DOMContentLoaded", async domEvent => {
  toggleContentBasedOnLocale();

  showEnrollmentStatus();

  document.addEventListener("focus", removeBadge);
  removeBadge();

  const privacyPolicyLinks = document.querySelectorAll(
    ".privacy-policy,.privacy-notice"
  );
  for (const privacyPolicyLink of privacyPolicyLinks) {
    const privacyPolicyFormattedLink = Services.urlFormatter.formatURL(
      privacyPolicyLink.href
    );
    privacyPolicyLink.href = privacyPolicyFormattedLink;
  }

  let cachedContent;
  let cachedAddons;
  if (Cu.isInAutomation) {
    let testCachedAddons = Services.prefs.getStringPref(
      PREF_TEST_CACHED_ADDONS,
      null
    );
    if (testCachedAddons) {
      cachedAddons = JSON.parse(testCachedAddons);
    }

    let testCachedContent = Services.prefs.getStringPref(
      PREF_TEST_CACHED_CONTENT,
      null
    );
    if (testCachedContent) {
      cachedContent = JSON.parse(testCachedContent);
    }
  } else {
    cachedContent = await RemoteSettings(CONTENT_COLLECTION_KEY).get();
    cachedAddons = await RemoteSettings(STUDY_ADDON_COLLECTION_KEY).get();
  }

  // Replace existing contents immediately on page load.
  for (const contents of cachedContent) {
    updateContents(contents);
  }

  for (const cachedAddon of cachedAddons) {
    // Record any studies that have been marked as concluded on the server.
    if ("studyEnded" in cachedAddon && cachedAddon.studyEnded === true) {
      const completedStudies = Services.prefs.getStringPref(
        PREF_ION_COMPLETED_STUDIES,
        "{}"
      );
      const studies = JSON.parse(completedStudies);
      studies[cachedAddon.addon_id] = STUDY_LEAVE_REASONS.STUDY_ENDED;

      Services.prefs.setStringPref(
        PREF_ION_COMPLETED_STUDIES,
        JSON.stringify(studies)
      );
    }
  }

  await setup(cachedAddons);

  try {
    await showAvailableStudies(cachedAddons);
  } catch (ex) {
    // No need to throw here, we'll try again before letting users enroll in any studies.
    console.error(`Could not show available studies`, ex);
  }
});

async function sendDeletionPing(studyAddonId) {
  const type = "pioneer-study";

  const options = {
    studyName: studyAddonId,
    addPioneerId: true,
    useEncryption: true,
    // NOTE - while we're not actually sending useful data in this payload, the current Pioneer v2 Telemetry
    // pipeline requires that pings are shaped this way so they are routed to the correct environment.
    //
    // At the moment, the public key used here isn't important but we do need to use *something*.
    encryptionKeyId: "discarded",
    publicKey: {
      crv: "P-256",
      kty: "EC",
      x: "XLkI3NaY3-AF2nRMspC63BT1u0Y3moXYSfss7VuQ0mk",
      y: "SB0KnIW-pqk85OIEYZenoNkEyOOp5GeWQhS1KeRtEUE",
    },
    schemaName: "deletion-request",
    schemaVersion: 1,
    // The schema namespace needs to be the study addon id, as we
    // want to route the ping to the specific study table.
    schemaNamespace: studyAddonId,
  };

  const payload = {
    encryptedData: "",
  };

  await TelemetryController.submitExternalPing(type, payload, options);
}

/**
 * Sends a Pioneer enrollment ping.
 *
 * The `creationDate` provided by the telemetry APIs will be used as the timestamp for
 * considering the user enrolled in pioneer and/or the study.
 *
 * @param [studyAddonid=undefined] - optional study id. It's sent in the ping, if present,
 * to signal that user enroled in the study.
 */
async function sendEnrollmentPing(studyAddonId) {
  let options = {
    studyName: "pioneer-meta",
    addPioneerId: true,
    useEncryption: true,
    // NOTE - while we're not actually sending useful data in this payload, the current Pioneer v2 Telemetry
    // pipeline requires that pings are shaped this way so they are routed to the correct environment.
    //
    // At the moment, the public key used here isn't important but we do need to use *something*.
    encryptionKeyId: "discarded",
    publicKey: {
      crv: "P-256",
      kty: "EC",
      x: "XLkI3NaY3-AF2nRMspC63BT1u0Y3moXYSfss7VuQ0mk",
      y: "SB0KnIW-pqk85OIEYZenoNkEyOOp5GeWQhS1KeRtEUE",
    },
    schemaName: "pioneer-enrollment",
    schemaVersion: 1,
    // Note that the schema namespace directly informs how data is segregated after ingestion.
    // If this is an enrollment ping for the pioneer program (in contrast to the enrollment to
    // a specific study), use a meta namespace.
    schemaNamespace: "pioneer-meta",
  };

  // If we were provided with a study id, then this is an enrollment to a study.
  // Send the id alongside with the data and change the schema namespace to simplify
  // the work on the ingestion pipeline.
  if (typeof studyAddonId != "undefined") {
    options.studyName = studyAddonId;
    // The schema namespace needs to be the study addon id, as we
    // want to route the ping to the specific study table.
    options.schemaNamespace = studyAddonId;
  }

  await TelemetryController.submitExternalPing("pioneer-study", {}, options);
}