notebook

2026-06-11 21:49:04 +02:00
parent 8e760d3adf
commit 8ef7d1cfd1
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+================================================================================
+ Nazev:   mailstore_folder_v1.0.py
+ Verze:   1.0
+ Datum:   2026-06-11
+ Autor:   Vladimir Buzalka (asistovano Claude)
+ Popis:   Vypise obsah jedne MailStore slozky jako seznam zprav
+          (datum | od | predmet) pres davkovy IMAP FETCH hlavicek.
+          Predstupen ingestu - overuje davkove cteni hlavicek.
+
+          Argument = plna cesta slozky (fullName z mapy), napr.:
+            "vladimir.buzalka@buzalka.cz/Exchange vladimir.buzalka/Sent Items"
+
+ Zdroj:   MailStore IMAP server, port 143, STARTTLS, auth Prosty text (LOGIN).
+          IMAP FETCH BODY.PEEK[HEADER.FIELDS (...)] = hlavicky bez oznaceni
+          jako precteno. Davkove jednim prikazem, ne po jedne zprave.
+
+ Spusteni:
+   python mailstore_folder_v1.0.py "...slozka..."            # poslednich 50
+   python mailstore_folder_v1.0.py "...slozka..." --limit 200
+   python mailstore_folder_v1.0.py "...slozka..." --all       # vse (pozor velke slozky)
+   python mailstore_folder_v1.0.py "...slozka..." --oldest    # od nejstarsich
+================================================================================
+"""
+
+from __future__ import annotations
+
+import argparse
+import email
+import imaplib
+import re
+import ssl
+import sys
+from email.header import decode_header
+from email.utils import parsedate_to_datetime
+
+# --- konfigurace ------------------------------------------------------------
+HOST = "192.168.1.53"
+PORT = 143
+USER = "admin"
+PASS = "*$N(B)vMUym!%"
+
+DEFAULT_LIMIT = 50
+
+
+# --- helpery ----------------------------------------------------------------
+
+def connect() -> imaplib.IMAP4:
+    ctx = ssl.create_default_context()
+    ctx.check_hostname = False
+    ctx.verify_mode = ssl.CERT_NONE
+    M = imaplib.IMAP4(HOST, PORT)
+    M.starttls(ssl_context=ctx)
+    M.login(USER, PASS)
+    return M
+
+
+def encode_mutf7(s: str) -> str:
+    """Nazev IMAP slozky -> modified UTF-7 (RFC 3501) kvuli diakritice
+    (MailStore neumi UTF8=ACCEPT). Vysledek je cisty ASCII."""
+    import base64 as _b64
+    res = []
+    i, n = 0, len(s)
+    while i < n:
+        ch = s[i]; o = ord(ch)
+        if 0x20 <= o <= 0x7e:
+            res.append("&-" if ch == "&" else ch); i += 1
+        else:
+            j = i
+            while j < n and not (0x20 <= ord(s[j]) <= 0x7e):
+                j += 1
+            enc = _b64.b64encode(s[i:j].encode("utf-16-be")).decode("ascii").rstrip("=").replace("/", ",")
+            res.append("&" + enc + "-"); i = j
+    return "".join(res)
+
+
+def dec(s: str | None) -> str:
+    """Dekoduje MIME-encoded hlavicku (=?utf-8?...?=) na citelny text."""
+    if not s:
+        return ""
+    out = []
+    for txt, enc in decode_header(s):
+        if isinstance(txt, bytes):
+            out.append(txt.decode(enc or "utf-8", errors="replace"))
+        else:
+            out.append(txt)
+    return "".join(out).replace("\r", " ").replace("\n", " ").strip()
+
+
+def fmt_date(raw: str | None) -> str:
+    if not raw:
+        return "?"
+    try:
+        dt = parsedate_to_datetime(raw)
+        return dt.strftime("%Y-%m-%d %H:%M")
+    except Exception:
+        return (raw or "")[:16]
+
+
+def short(s: str, n: int) -> str:
+    s = s or ""
+    return s if len(s) <= n else s[: n - 1] + "…"
+
+
+# IMAP FETCH header bloky prijdou jako tuple (b'N (BODY[...] {len}', b'<headers>')
+_NUM_RX = re.compile(rb"^(\d+)\s")
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description="Vypis obsahu MailStore slozky")
+    ap.add_argument("folder", help="Plna cesta slozky (fullName z mapy)")
+    ap.add_argument("--limit", type=int, default=DEFAULT_LIMIT,
+                    help=f"Pocet zprav (default {DEFAULT_LIMIT})")
+    ap.add_argument("--all", action="store_true", help="Vsechny zpravy (ignoruje --limit)")
+    ap.add_argument("--oldest", action="store_true",
+                    help="Od nejstarsich (default: od nejnovejsich)")
+    args = ap.parse_args()
+
+    M = connect()
+    typ, data = M.select(f'"{encode_mutf7(args.folder)}"', readonly=True)
+    if typ != "OK":
+        print(f"Slozku nelze otevrit: {data}", file=sys.stderr)
+        return 1
+    total = int(data[0]) if data and data[0] else 0
+    print(f"Slozka: {args.folder}")
+    print(f"Zprav celkem: {total:,}")
+    if total == 0:
+        M.logout()
+        return 0
+
+    # urci rozsah porad. cisel (1 = nejstarsi, total = nejnovejsi)
+    if args.all:
+        lo, hi = 1, total
+    else:
+        n = min(args.limit, total)
+        lo, hi = (1, n) if args.oldest else (total - n + 1, total)
+    rng = f"{lo}:{hi}"
+    shown = hi - lo + 1
+    order = "nejstarsi" if args.oldest else "nejnovejsi"
+    print(f"Zobrazuji {shown} zprav ({order} prvni), rozsah #{rng}")
+    print("=" * 100)
+
+    # davkovy FETCH hlavicek
+    typ, msgs = M.fetch(rng, "(BODY.PEEK[HEADER.FIELDS (DATE FROM SUBJECT)])")
+    rows = []
+    for item in msgs:
+        if not isinstance(item, tuple):
+            continue
+        meta, hdr_bytes = item[0], item[1]
+        m = _NUM_RX.match(meta or b"")
+        seqno = int(m.group(1)) if m else 0
+        hdr = email.message_from_bytes(hdr_bytes)
+        rows.append((seqno, fmt_date(hdr.get("Date")),
+                     dec(hdr.get("From")), dec(hdr.get("Subject"))))
+
+    rows.sort(key=lambda r: r[0], reverse=not args.oldest)
+
+    print(f"{'#':>6}  {'Datum':<16}  {'Od':<32}  Predmet")
+    print("-" * 100)
+    for seqno, d, frm, subj in rows:
+        print(f"{seqno:>6}  {d:<16}  {short(frm, 32):<32}  {short(subj, 40)}")
+
+    M.logout()
+    print("=" * 100)
+    print(f"Vypsano {len(rows)} zprav.")
+    return 0
+
+
+if __name__ == "__main__":
+    try:
+        sys.exit(main())
+    except KeyboardInterrupt:
+        print("\nPreruseno", file=sys.stderr)
+        sys.exit(1)