Fetch Chrome extensions.
Chrome extensions are installed into the user’s home directory. We search for manifest.json files in a known path within each system user’s home directory. We then parse the manifest file as JSON.
Many extensions use locale packs to resolve strings like name and description. In this case we detect the default locale and load those locale files. We then resolve the extension’s name and description from there.
name: Linux.Applications.Chrome.Extensions
description: |
Fetch Chrome extensions.
Chrome extensions are installed into the user's home directory. We
search for manifest.json files in a known path within each system
user's home directory. We then parse the manifest file as JSON.
Many extensions use locale packs to resolve strings like name and
description. In this case we detect the default locale and load
those locale files. We then resolve the extension's name and
description from there.
parameters:
- name: extensionGlobs
default: /.config/google-chrome/*/Extensions/*/*/manifest.json
sources:
- precondition: |
SELECT OS From info() where OS = 'linux'
query: |
/* For each user on the system, search for extension manifests
in their home directory. */
LET extension_manifests = SELECT * from foreach(
row={
SELECT Uid, User, Homedir from Artifact.Linux.Sys.Users()
},
query={
SELECT OSPath, Mtime, Ctime, User, Uid
FROM glob(
globs=extensionGlobs,
root=Homedir)
})
/* If the Manifest declares a default_locale then we
load and parse the messages file. In this case the
messages are actually stored in the locale file
instead of the main manifest.json file.
*/
LET maybe_read_locale_file =
SELECT * from if(
condition={
select * from scope() where Manifest.default_locale
},
then={
SELECT Manifest,
Uid, User,
Filename as LocaleFilename,
ManifestFilename,
parse_json(data=Data) AS LocaleManifest
FROM read_file(
-- Munge the filename to get the messages.json path.
filenames=regex_replace(
source=ManifestFilename,
replace="/_locales/" + Manifest.default_locale +
"/messages.json",
re="/manifest.json$"))
},
else={
-- Just fill in empty Locale results.
SELECT Manifest,
Uid, User,
"" AS LocaleFilename,
"" AS ManifestFilename,
"" AS LocaleManifest
FROM scope()
})
LET parse_json_files = SELECT * from foreach(
row={
SELECT Filename as ManifestFilename,
Uid, User,
parse_json(data=Data) as Manifest
FROM read_file(filenames=OSPath)
},
query=maybe_read_locale_file)
LET parsed_manifest_files = SELECT * from foreach(
row=extension_manifests,
query=parse_json_files)
SELECT Uid, User,
/* If the manifest name contains __MSG_ then the real
name is stored in the locale manifest. This condition
resolves the Name column either to the main manifest or
the locale manifest.
*/
if(condition="__MSG_" in Manifest.name,
then=get(item=LocaleManifest,
member=regex_replace(
source=Manifest.name,
replace="$1",
re="(?:__MSG_(.+)__)")).message,
else=Manifest.name) as Name,
if(condition="__MSG_" in Manifest.description,
then=get(item=LocaleManifest,
member=regex_replace(
source=Manifest.description,
replace="$1",
re="(?:__MSG_(.+)__)")).message,
else=Manifest.description) as Description,
/* Get the Identifier and Version from the manifest filename */
regex_replace(
source=ManifestFilename,
replace="$1",
re="(?:.+Extensions/([^/]+)/([^/]+)/manifest.json)$") AS Identifier,
regex_replace(
source=ManifestFilename,
replace="$2",
re="(?:.+Extensions/([^/]+)/([^/]+)/manifest.json)$") AS Version,
Manifest.author as Author,
Manifest.background.persistent AS Persistent,
regex_replace(
source=ManifestFilename,
replace="$1",
re="(.+Extensions/.+/)manifest.json$") AS Path,
Manifest.oauth2.scopes as Scopes,
Manifest.permissions as Permissions,
Manifest.key as Key
FROM parsed_manifest_files