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Add Cashtab to the assetlinks.json #1112

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Merged
Klakurka merged 1 commit into from
Feb 24, 2026
Merged

Add Cashtab to the assetlinks.json #1112

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12 changes: 12 additions & 0 deletions public/.well-known/assetlinks.json
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Original file line number Diff line number Diff line change
Expand Up @@ -10,5 +10,17 @@
"2C:D2:B8:58:40:00:21:E7:D2:1C:40:A7:CC:74:89:7C:5F:6C:68:71:21:9E:E5:31:83:C8:0B:33:D3:8B:87:48"
]
}
},
{
"relation": ["delegate_permission/common.handle_all_urls"],
"target": {
"namespace": "android_app",
"package_name": "com.cashtab.app",
"sha256_cert_fingerprints": [
"FA:C6:17:45:DC:09:03:78:6F:B9:ED:E6:2A:96:2B:39:9F:73:48:F0:BB:6F:89:9B:83:32:66:75:91:03:3B:9C",
"02:71:C6:C3:30:1F:FC:F1:E7:5E:F5:92:8D:03:A3:7C:6C:FE:33:CE:6D:22:B9:4C:8F:FF:E7:65:BE:84:04:A1",
"18:43:19:21:31:B6:EA:C3:DF:29:40:86:EA:96:6E:DE:21:D1:BE:F2:FD:B1:9C:C4:44:43:5F:94:22:D8:0F:22"
]
Comment on lines +14 to +23
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@coderabbitai coderabbitai bot Feb 24, 2026

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⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

🏁 Script executed:

cat public/.well-known/assetlinks.json

Repository: PayButton/paybutton-server

Length of output: 1273

🏁 Script executed:

find . -type f \( -name "README*" -o -name "*.md" \) | head -20

Repository: PayButton/paybutton-server

Length of output: 173

🏁 Script executed:

cat README.md

Repository: PayButton/paybutton-server

Length of output: 10201

🏁 Script executed:

git log --oneline public/.well-known/assetlinks.json | head -20

Repository: PayButton/paybutton-server

Length of output: 112

🏁 Script executed:

git show 0174388 --stat

Repository: PayButton/paybutton-server

Length of output: 22681

🏁 Script executed:

git show 0174388:public/.well-known/assetlinks.json

Repository: PayButton/paybutton-server

Length of output: 1273

🏁 Script executed:

rg -i "cashtab\|marlin" --type md --type json --type ts --type tsx -A 2 -B 2 | head -100

Repository: PayButton/paybutton-server

Length of output: 97

🏁 Script executed:

rg -i "cashtab\|marlin" -A 2 -B 2 | head -100

Repository: PayButton/paybutton-server

Length of output: 52

🏁 Script executed:

git log --all --oneline | grep -i "cashtab\|marlin\|assetlinks"

Repository: PayButton/paybutton-server

Length of output: 189

🏁 Script executed:

git show af2d13c --stat

Repository: PayButton/paybutton-server

Length of output: 339

🏁 Script executed:

git show af2d13c:public/.well-known/assetlinks.json

Repository: PayButton/paybutton-server

Length of output: 366

🏁 Script executed:

git show 0a91e41:public/.well-known/assetlinks.json

Repository: PayButton/paybutton-server

Length of output: 675

🏁 Script executed:

git log --all --format="%H %s" | grep -i "cashtab\|marlin"

Repository: PayButton/paybutton-server

Length of output: 145

🏁 Script executed:

git show 0a91e41 --stat

Repository: PayButton/paybutton-server

Length of output: 417

🏁 Script executed:

git show 0a91e41

Repository: PayButton/paybutton-server

Length of output: 1129

🏁 Script executed:

git log --all --oneline -- public/.well-known/assetlinks.json

Repository: PayButton/paybutton-server

Length of output: 223

Confirm whether Cashtab and Marlin Wallet intentionally share the signing certificate.

The fingerprint FA:C6:17:45:DC:09:03:78:6F:B9:ED:E6:2A:96:2B:39:9F:73:48:F0:BB:6F:89:9B:83:32:66:75:91:03:3B:9C is present in both app entries. This could be correct if they use a shared signing key, but if Cashtab has different release certificates, this will break app-link verification or grant the wrong app URL handling permissions. Please verify Cashtab's actual signing cert(s) and confirm whether the shared key is intentional.

🤖 Prompt for AI Agents 
Verify each finding against the current code and only fix it if needed.

In `@public/.well-known/assetlinks.json` around lines 14 - 23, The assetlinks.json
entry for package_name "com.cashtab.app" currently includes the
sha256_cert_fingerprint
"FA:C6:17:45:DC:09:03:78:6F:B9:ED:E6:2A:96:2B:39:9F:73:48:F0:BB:6F:89:9B:83:32:66:75:91:03:3B:9C"
which also appears in the Marlin Wallet entry; confirm whether Cashtab and
Marlin intentionally share the signing key, and if not, replace that fingerprint
in the "target" block for com.cashtab.app with the correct Cashtab release
SHA-256 fingerprint(s) (or remove any stale fingerprints), then re-generate and
redeploy public/.well-known/assetlinks.json so app-link verification uses the
correct certificate(s).

}
}
]