Add cookies.txt authentication support

twitter_cli/auth.py

@@ -2,7 +2,8 @@
 
 Supports:
 1. Environment variables: TWITTER_AUTH_TOKEN + TWITTER_CT0
-2. Auto-extract from browser via browser-cookie3
+2. Cookie file: TWITTER_COOKIE_FILE or config auth.cookieFile (Netscape cookies.txt)
+3. Auto-extract from browser via browser-cookie3
    Extracts ALL Twitter cookies for full browser-like fingerprint.
    Prefers in-process extraction (required on macOS for Keychain access),
    falls back to subprocess if in-process fails (e.g. SQLite lock).
@@ -16,6 +17,7 @@ import logging
 import os
 import subprocess
 import sys
+from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple
 
 from .constants import BEARER_TOKEN, get_user_agent
@@ -97,6 +99,67 @@ def load_from_env() -> Optional[Dict[str, str]]:
     return None
 
 
+def _parse_cookie_file(cookie_file: Path) -> Optional[Dict[str, str]]:
+    """Load Twitter cookies from a Netscape cookies.txt file."""
+    try:
+        raw = cookie_file.read_text(encoding="utf-8")
+    except OSError as exc:
+        logger.debug("Failed to read cookie file %s: %s", cookie_file, exc)
+        return None
+
+    all_cookies: Dict[str, str] = {}
+    auth_token = ""
+    ct0 = ""
+
+    for line in raw.splitlines():
+        stripped = line.strip()
+        if not stripped or stripped.startswith("#"):
+            continue
+        parts = line.split("\t")
+        if len(parts) != 7:
+            continue
+
+        domain = parts[0].removeprefix("#HttpOnly_")
+        name = parts[5]
+        value = parts[6]
+        if not _is_twitter_domain(domain) or not name:
+            continue
+
+        all_cookies[name] = value
+        if name == "auth_token":
+            auth_token = value
+        elif name == "ct0":
+            ct0 = value
+
+    if not auth_token or not ct0:
+        logger.debug(
+            "Cookie file %s did not contain usable Twitter auth cookies (auth_token=%s, ct0=%s)",
+            cookie_file,
+            bool(auth_token),
+            bool(ct0),
+        )
+        return None
+
+    cookies = {"auth_token": auth_token, "ct0": ct0}
+    if all_cookies:
+        cookies["cookie_string"] = "; ".join(f"{key}={value}" for key, value in all_cookies.items())
+    return cookies
+
+
+
+def load_from_cookie_file(cookie_file: Optional[str]) -> Optional[Dict[str, str]]:
+    """Load cookies from a configured cookies.txt file path."""
+    if not cookie_file:
+        return None
+
+    path = Path(cookie_file).expanduser()
+    if not path.exists():
+        logger.debug("Cookie file does not exist: %s", path)
+        return None
+    return _parse_cookie_file(path)
+
+
+
 def verify_cookies(auth_token: str, ct0: str, cookie_string: Optional[str] = None) -> Dict[str, Any]:
     """Verify cookies by calling a Twitter API endpoint.
 
@@ -586,8 +649,8 @@ def extract_from_browser() -> Tuple[Optional[Dict[str, str]], List[str]]:
     return cookies, all_diagnostics
 
 
-def get_cookies() -> Dict[str, str]:
-    """Get Twitter cookies. Priority: env vars -> browser extraction.
+def get_cookies(config: Optional[Dict[str, Any]] = None) -> Dict[str, str]:
+    """Get Twitter cookies. Priority: env vars -> cookie file -> browser extraction.
 
     Raises RuntimeError if no cookies found.
     """
@@ -599,7 +662,17 @@ def get_cookies() -> Dict[str, str]:
     if cookies:
         logger.info("Loaded cookies from environment variables")
 
-    # 2. Try browser extraction (auto-detect)
+    # 2. Try cookie file from env/config
+    if not cookies:
+        auth_config = (config or {}).get("auth", {})
+        cookie_file = os.environ.get("TWITTER_COOKIE_FILE", "")
+        if not cookie_file and isinstance(auth_config, dict):
+            cookie_file = str(auth_config.get("cookieFile", "") or "")
+        cookies = load_from_cookie_file(cookie_file)
+        if cookies:
+            logger.info("Loaded cookies from cookie file %s", cookie_file)
+
+    # 3. Try browser extraction (auto-detect)
     if not cookies:
         logger.debug("Attempting browser cookie extraction")
         cookies, diagnostics = extract_from_browser()
@@ -614,7 +687,8 @@ def get_cookies() -> Dict[str, str]:
             lines.extend("  " + line for line in hint.splitlines())
             lines.append("")
         lines.append("Option 1: Set TWITTER_AUTH_TOKEN and TWITTER_CT0 environment variables")
-        lines.append("Option 2: Make sure you are logged into x.com in your browser (Arc/Chrome/Edge/Firefox/Brave)")
+        lines.append("Option 2: Set TWITTER_COOKIE_FILE or config auth.cookieFile to a Netscape cookies.txt export")
+        lines.append("Option 3: Make sure you are logged into x.com in your browser (Arc/Chrome/Edge/Firefox/Brave)")
         lines.append("")
         lines.append("Run 'twitter -v <command>' for debug diagnostics.")
         raise AuthenticationError("\n".join(lines))