Initial Firefox Agent Bridge: allowlisted bookmarks RPC for local scripts.

This commit is contained in:
alexveley
2026-09-22 06:24:31 -04:00
commit 6dcf068365
11 changed files with 690 additions and 0 deletions
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#!/usr/bin/env python3
"""Minimal client for Firefox Agent Bridge. Stdlib only."""
from __future__ import annotations
import argparse
import json
import os
import sys
import urllib.error
import urllib.request
from pathlib import Path
from typing import Any
DEFAULT_BASE = os.environ.get("FAB_URL", "http://127.0.0.1:17634")
TOKEN_PATH = Path(os.environ.get("LOCALAPPDATA", str(Path.home()))) / "firefox-agent-bridge" / "token"
def token() -> str:
env = os.environ.get("FAB_TOKEN")
if env:
return env.strip()
if TOKEN_PATH.exists():
return TOKEN_PATH.read_text(encoding="utf-8").strip()
raise SystemExit(f"no token: set FAB_TOKEN or create {TOKEN_PATH}")
def call(method: str, args: list[Any] | None = None, base: str = DEFAULT_BASE) -> Any:
payload = json.dumps({"method": method, "args": args or []}).encode("utf-8")
req = urllib.request.Request(
base.rstrip("/") + "/v1/call",
data=payload,
method="POST",
headers={
"Authorization": f"Bearer {token()}",
"Content-Type": "application/json",
},
)
try:
with urllib.request.urlopen(req, timeout=20) as resp:
body = json.loads(resp.read().decode("utf-8"))
except urllib.error.URLError as exc:
raise SystemExit(
f"bridge unreachable at {base} ({exc}). "
"Firefox must be open with the extension loaded."
) from exc
if not body.get("ok"):
raise SystemExit(body.get("error") or body)
return body.get("result")
def main() -> int:
parser = argparse.ArgumentParser(description="Call Firefox Agent Bridge")
parser.add_argument("method", help="e.g. bookmarks.search or meta.methods")
parser.add_argument("args_json", nargs="?", default="[]", help="JSON array of arguments")
parser.add_argument("--url", default=DEFAULT_BASE)
ns = parser.parse_args()
args = json.loads(ns.args_json)
if not isinstance(args, list):
raise SystemExit("args_json must be a JSON array")
print(json.dumps(call(ns.method, args, base=ns.url), indent=2))
return 0
if __name__ == "__main__":
raise SystemExit(main())
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# Register the native messaging host for the current Windows user.
# Does not load the Firefox extension — see README / AGENTS.md.
$ErrorActionPreference = "Stop"
$Root = Split-Path -Parent $PSScriptRoot
$HostDir = Join-Path $Root "host"
$CmdPath = Join-Path $HostDir "firefox-agent-bridge-host.cmd"
$ManifestPath = Join-Path $HostDir "com.easygoingaming.firefox_agent_bridge.json"
$StateDir = Join-Path $env:LOCALAPPDATA "firefox-agent-bridge"
$TokenPath = Join-Path $StateDir "token"
$HostName = "com.easygoingaming.firefox_agent_bridge"
$ExtensionId = "firefox-agent-bridge@easygoingaming.com"
if (-not (Test-Path $CmdPath)) {
throw "host launcher missing: $CmdPath"
}
New-Item -ItemType Directory -Force -Path $StateDir | Out-Null
if (-not (Test-Path $TokenPath) -or -not (Get-Content -Raw $TokenPath).Trim()) {
$bytes = New-Object byte[] 32
[System.Security.Cryptography.RandomNumberGenerator]::Create().GetBytes($bytes)
$token = -join ($bytes | ForEach-Object { $_.ToString("x2") })
[System.IO.File]::WriteAllText($TokenPath, $token)
Write-Host "wrote $TokenPath"
} else {
Write-Host "kept existing token at $TokenPath"
}
$manifest = @{
name = $HostName
description = "Firefox Agent Bridge native host"
path = $CmdPath
type = "stdio"
allowed_extensions = @($ExtensionId)
} | ConvertTo-Json -Compress
[System.IO.File]::WriteAllText($ManifestPath, $manifest)
Write-Host "wrote $ManifestPath"
$regPath = "HKCU:\Software\Mozilla\NativeMessagingHosts\$HostName"
New-Item -Path $regPath -Force | Out-Null
Set-ItemProperty -Path $regPath -Name "(default)" -Value $ManifestPath
Write-Host "registered $regPath"
Write-Host ""
Write-Host "Next: in Firefox open about:debugging#/runtime/this-firefox"
Write-Host "Load Temporary Add-on and pick extension\manifest.json"
Write-Host "Token is read from $TokenPath (Authorization: Bearer ...)"