Comet

Comet is a AI focus web browser created and maintained by Perplexity.

Artemis supports parsing the list of artifacts below:

• History
• Downloads
• Cookies
• Autofill
• Bookmarks
• Login Data
• Extensions
• Preferences
• Detect Incidental Party State (DIPS)
• Local Storage
• Browser sessions
• Favicons
• Shortcuts
• Retrospect - A powerful capability that timelines all artifacts. It is based on Hindsight

You have to use the artemis api in order to collect Comet data.
Since Comet is based on Chromium, many of the Comet artifacts will be identical to Chromium

Other parsers:

• Any program that read a SQLITE database

References:

• History
• Schema

Sample API Script

import { Comet } from "./artemis-api/mod";
import { PlatformType } from "./artemis-api/src/system/systeminfo";

function main() {
    const client = new Comet(PlatformType.Darwin);
    console.log(JSON.stringify(client.cookies()));
}

main();

Output Structure

Dependent on browser artifact user wants to parse.

/**
 * An interface representing the Chromium SQLITE tables: `urls` and `visits`
 */
export interface ChromiumHistory {
  /**Row ID value */
  id: number;
  /**Page URL */
  url: string;
  /**Page title */
  title: string;
  /**Page visit count */
  visit_count: number;
  /**Typed count value */
  typed_count: number;
  /**Last visit time*/
  last_visit_time: string;
  /**Hidden value */
  hidden: number;
  /**Visits ID value */
  visits_id: number;
  /**From visit value */
  from_visit: number;
  /**Transition value */
  transition: number;
  /**Segment ID value */
  segment_id: number;
  /**Visit duration value */
  visit_duration: number;
  /**Opener visit value */
  opener_visit: number;
  unfold: Url | undefined;
  /**Path to the HISTORY sqlite file */
  db_path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "URL Visited";
  artifact: "URL History";
  data_type: string;
  browser: BrowserType;
}

/**
 * An interface representing the Chromium SQLITE tables: `downloads` and  `downloads_url_chains`
 */
export interface ChromiumDownloads {
  /**Row ID */
  id: number;
  /**GUID for download */
  guid: string;
  /**Path to download */
  current_path: string;
  /**Target path to download */
  target_path: string;
  /**Download start time */
  start_time: string;
  /**Bytes downloaded */
  received_bytes: number;
  /**Total bytes downloaded */
  total_bytes: number;
  /**State value */
  state: number;
  /**Danger type value */
  danger_type: number;
  /**Interrupt reason value */
  interrupt_reason: number;
  /**Raw byte hash value */
  hash: number[];
  /**Download end time */
  end_time: string;
  /**Opened value */
  opened: number;
  /**Last access time */
  last_access_time: string;
  /**Transient value */
  transient: number;
  /**Referer URL */
  referrer: string;
  /**Download source URL */
  site_url: string;
  /**Tab URL */
  tab_url: string;
  /**Tab referrer URL */
  tab_referrer_url: string;
  /**HTTP method used */
  http_method: string;
  /**By ext ID value */
  by_ext_id: string;
  /**By ext name value */
  by_ext_name: string;
  /**Etag value */
  etag: string;
  /**Last modified time */
  last_modified: string;
  /**MIME type value */
  mime_type: string;
  /**Original mime type value */
  original_mime_type: string;
  /**Downloads URL chain ID value */
  downloads_url_chain_id: number;
  /**Chain index value */
  chain_index: number;
  /**URL for download */
  url: string;
  /**Path to the HISTORY sqlite file */
  db_path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "File Download Start";
  artifact: "File Download";
  data_type: string;
  browser: BrowserType;
}

export interface ChromiumCookies {
  creation: string;
  host_key: string;
  top_frame_site_key: string;
  name: string;
  value: string;
  /**This value is currently Base64 encoded */
  encrypted_value: string;
  path: string;
  expires: string;
  is_secure: boolean;
  is_httponly: boolean;
  last_access: string;
  has_expires: boolean;
  is_persistent: boolean;
  priority: number;
  samesite: number;
  source_scheme: number;
  source_port: number;
  is_same_party: number;
  last_update: string;
  db_path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "Cookie Expires";
  artifact: "Website Cookie";
  data_type: string;
  browser: BrowserType;
}

export interface ChromiumAutofill {
  name?: string;
  value?: string;
  value_lower?: string;
  date_created: string;
  date_last_used: string;
  /**Default is 1 */
  count: number;
  db_path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "Autofill Created";
  artifact: "Website Autofill";
  data_type: string;
  browser: BrowserType;
}

export interface ChromiumBookmarks {
  date_added: string;
  date_last_used: string;
  guid: string;
  id: number;
  name: string;
  type: string;
  url: string;
  meta_info: Record<string, string>;
  bookmark_type: BookmarkType;
  path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "Bookmark Added";
  artifact: "Browser Bookmark";
  data_type: string;
  browser: BrowserType;
}

export enum BookmarkType {
  Bar = "Bookmark Bar",
  Sync = "Synced",
  Other = "Other",
  Unknown = "Unknown",
}

export interface ChromiumLogins {
  origin_url: string;
  action_url?: string;
  username_element?: string;
  username_value?: string;
  password_element?: string;
  password_value?: string;
  submit_element?: string;
  signon_realm: string;
  date_created: string;
  blacklisted_by_user: number;
  scheme: number;
  password_type?: number;
  times_used?: number;
  form_data?: string;
  display_name?: string;
  icon_url?: string;
  federation_url?: string;
  skip_zero_click?: number;
  generation_upload_status?: number;
  possible_username_pairs?: string;
  id: number;
  date_last_used: string;
  moving_blocked_for?: string;
  date_password_modified: string;
  sender_email?: string;
  sender_name?: string;
  date_received?: string;
  sharing_notification_display: number;
  keychain_identifier?: string;
  sender_profile_image_url?: string;
  db_path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "Last Login";
  artifact: "Website Login";
  data_type: string;
  browser: BrowserType;
}

/**
 * Detect Incidental Party State (DIPS) collects metrics on websites
 */
export interface ChromiumDips {
  site: string;
  first_site_storage?: string | null;
  last_site_storage?: string | null;
  first_user_interaction?: string | null;
  last_user_interaction?: string | null;
  first_stateful_bounce?: string | null;
  last_stateful_bounce?: string | null;
  first_bounce?: string | null;
  last_bounce?: string | null;
  first_web_authn_assertion: string | null;
  last_web_authn_assertion: string | null;
  /**Path to DIPS database */
  path: string;
  /**Browser version */
  version: string;
  message: string;
  datetime: string;
  timestamp_desc: "First Interaction";
  artifact: "Browser DIPS";
  data_type: string;
  browser: BrowserType;
}

export interface ChromiumProfiles {
  full_path: string;
  version: string;
  browser: BrowserType;
}

export enum ChromiumCookieType {
  Unknown = "Unknown",
  Http = "HTTP",
  Script = "Script",
  Other = "Other",
}

/**
 * Object representing a Local Storage LevelDb entry.  
 * This object is Timesketch compatible.  It does **not** need to be timelined
 */
export interface ChromiumLocalStorage extends LevelDbEntry {
  version: string;
  message: string;
  datetime: string;
  browser: BrowserType;
  timestamp_desc: "Local Storage Entry Write" | "Local Storage Write Ahead Log";
  artifact: "Level Database";
  data_type: "applications:leveldb:entry";
}

export interface ChromiumSession {
  version: string;
  message: string;
  datetime: string;
  browser: BrowserType;
  timestamp_desc: "Last Active";
  artifact: "Browser Session";
  data_type: string;
  session_id: string;
  last_active: string;
  url: string;
  title: string;
  session_type: SessionType;
  path: string;
}

export enum SessionType {
  Session = "Session",
  Tab = "Tab",
}