fdroid-misc-scripts

miscellaneous scripts to analyse f-droid app data

→ Overview of apps published with Reproducible Builds

→ Graphs of apps verified by the Verification Server

Setup

$ git clone https://github.com/obfusk/fdroid-misc-scripts.git
$ cd fdroid-misc-scripts
$ git clone https://gitlab.com/fdroid/fdroiddata.git
$ git clone https://gitlab.com/fdroid/f-droid.org-transparency-log.git

Dependencies

detect-blocks-fdroiddata.sh, detect-blocks.sh, and detect-signflinger.sh require apksigtool, download-index.sh uses it when available; create-graphs.py requires matplotlib (e.g. apt install python3-matplotlib).

Scripts

Index & metadata

download-index.sh

Downloads F-Droid's index-v1.jar & extracts index-v1.json from it.

$ ./scripts/download-index.sh

update-index-and-metadata-apps.sh

Creates/updates apps/index-apps, apps/metadata-apps, etc.

$ ./scripts/update-index-and-metadata-apps.sh
getting apps from index-v1.json...
listing apps from metadata...
diffing...
$ ls -1 apps/
index-apps
index-apps-not-in-metadata
metadata-apps
metadata-apps-archived-and-disabled
metadata-apps-not-archived-or-disabled
metadata-apps-not-in-index

apps-status.py

Reads a list of appids from stdin and parses the metadata YAML for each app to show its status: disabled, archived, all builds disabled, or version=NAME code=CODE for the latest (non-disabled) build.

$ ./scripts/apps-status.py < apps/metadata-apps-not-in-index
some.app.id                                                   version=4.2 code=42
some.other.app.id                                             all builds disabled
[...]

detect-permissions.py

Lists apps in the index that use the specified permission(s).

$ ./scripts/detect-permissions.py REQUEST_INSTALL_PACKAGES
some.app.id: android.permission.REQUEST_INSTALL_PACKAGES
[...]

update-stats.sh

Update stats/YYYY-MM-DD-apps.

NB: this doesn't modify fdroiddata, but it does check out the first commit on the specified date (and then master).

$ ./scripts/update-stats.sh 2022-11-01
$ ./scripts/update-stats.sh 2022-12-01

update-diffs.sh

Update stats/YYYY-MM-DD-{adds,rems} & reproducible/YYYY-MM-DD-{bins,sigs}-{adds,rems}.

$ ./scripts/update-diffs.sh

Reproducible Builds: Overview

update-rb.sh

Creates reproducible/YYYY-MM-DD-{bins,sigs}: an overview of the apps using Binaries/signatures on that date.

NB: this doesn't modify fdroiddata, but it does check out the first commit on the specified date (and then master).

$ ./scripts/update-rb.sh 2022-11-01
$ ./scripts/update-rb.sh 2022-12-01

$ cd reproducible
$ head 2022-12-01-bins
androdns.android.leetdreams.ch.androdns
ch.admin.bag.covidcertificate.verifier
ch.admin.bag.covidcertificate.wallet
com.dhaval.bookland
com.github.bmx666.appcachecleaner [signflinger]
com.markuspage.android.certtools [missing]
com.mishiranu.dashchan
com.rafapps.earthviewformuzei [signflinger]
com.zionhuang.music
de.corona.tracing
$ head 2022-12-01-sigs
de.schildbach.wallet
de.schildbach.wallet_test
dev.obfusk.jiten
dev.obfusk.jiten_webview
dev.obfusk.sokobang
org.schabi.newpipe [no longer RB]
org.torproject.torservices

create-graphs.py

Create graphs/{bins,sigs,rb}.png graphs from the reproducible/YYYY-MM-DD-{bins,sigs} files and graphs/adds.png from the stats/YYYY-MM-DD-{adds,rems} & reproducible/YYYY-MM-DD-{bins,sigs}-{adds,rems} files.

$ ./scripts/create-graphs.py

update-rb-signflinger.sh

Updates reproducible/signflinger using detect-virtual-entry.sh.

$ ./scripts/update-rb-signflinger.sh

NB: reproducible/{disabled,missing,no-longer-rb} are updated manually.

Reproducible Builds: Binaries

download-binaries.sh

Downloads APKs for apps using Binaries: into binaries/.

$ ./scripts/download-binaries.sh
==> fdroiddata/metadata/some.app.id.yml
version=4.2 code=42
[...]

==> fdroiddata/metadata/some.other.app.id.yml
all versions disabled
[...]

compare-binaries.sh

Compares upstream and F-Droid APKs in binaries/ (when both are available).

$ cd binaries
$ ../scripts/compare-binaries.sh cmp
some.app.id_42                                                          OK
some.other.app.id_37                                                    skipped
[...]

detect-blocks.sh

Lists APKs in binaries/ that contain blocks of other types than APKSignatureSchemeBlock or VerityPaddingBlock in their APK Signing Block.

$ cd binaries
$ ../scripts/detect-blocks.sh
some.app.id_42_fdroid.apk: DependencyInfoBlock
[...]

detect-signflinger.sh

Lists APKs in binaries/ that are signed by Signflinger according to their manifest, which is extracted using apksigtool.

$ cd binaries
$ ../scripts/detect-signflinger.sh
some.app.id_42_fdroid.apk
some.app.id_42_upstream.apk
[...]

NB: most -- but not all! -- of these APKs will start with a zipflinger virtual entry (see next script).

detect-virtual-entry.sh

Lists APKs in binaries/ whose first 28 bytes indicate they start with a zipflinger virtual entry.

$ cd binaries
$ ../scripts/detect-virtual-entry.sh
some.app.id_42_fdroid.apk
some.app.id_42_upstream.apk
[...]

Reproducible Builds: Signatures in fdroiddata

detect-blocks-fdroiddata.sh

Lists fdroiddata/metadata/*/signatures/*/APKSigningBlock that contain blocks of other types than APKSignatureSchemeBlock or VerityPaddingBlock.

$ ./scripts/detect-blocks-fdroiddata.sh
fdroiddata/metadata/some.app.id/signatures/42/APKSigningBlock: DependencyInfoBlock
[...]

Reproducible Builds: Verification Server

download-verified.py

FIXME: work in progress.

$ ./scripts/download-verified.py

update-index-apks.sh

FIXME: work in progress.

$ ./scripts/update-index-apks.sh 2023-01-