[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_105":106,"_107":108},"routes/embed.x.$handle.$name.$",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":-5},"handle","Thokolosh","name","gmx-cleanup","path","imap.ts","project",{"_22":45,"_11":12,"_33":46,"_47":-5,"_48":42,"_49":50,"_51":50,"_52":53,"_54":-5,"_55":56,"_57":-5,"_58":42,"_59":-5,"_60":-5,"_61":36,"_62":63,"_64":65,"_66":67,"_68":69,"_70":-5,"_71":72,"_73":72,"_74":75,"_76":75,"_77":75,"_78":72,"_79":72,"_80":81,"_82":83,"_84":85,"_86":42},"file",{"_22":23,"_11":14,"_24":25,"_26":-5,"_27":28,"_29":30,"_31":32,"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":-5,"_13":44},"permalink","https://www.val.town/x/Thokolosh/gmx-cleanup/code/imap.ts","extension","id","8765ad9e-2368-4424-b5fc-6fa238f13bed","fileId","90b95386-afac-11f1-b2d3-1607ee4eb77e","parentId","branchId","a8174eb8-3f68-480a-ae30-c80f280d9c3f","branchVersion",2,"latest",true,"createdAt",["D",1789329112241],"version",0,"fileType","script","content","// Minimal IMAP client over Deno.connectTls — enough for scanning, moving and expunging.\nexport type Resp = { line: string; literals: string[] };\n\nexport class Imap {\n private conn!: Deno.TlsConn;\n private buf = new Uint8Array(0);\n private tag = 0;\n private dec = new TextDecoder(\"latin1\");\n private enc = new TextEncoder();\n\n async connect(host = \"imap.gmx.net\", port = 993) {\n this.conn = await Deno.connectTls({ hostname: host, port });\n const greet = await this.readResponse();\n if (!greet.line.startsWith(\"* OK\")) throw new Error(\"bad greeting: \" + greet.line);\n }\n\n private async fill() {\n const chunk = new Uint8Array(65536);\n const n = await this.conn.read(chunk);\n if (n === null) throw new Error(\"connection closed\");\n const nb = new Uint8Array(this.buf.length + n);\n nb.set(this.buf); nb.set(chunk.subarray(0, n), this.buf.length);\n this.buf = nb;\n }\n\n private async readLine(): Promise {\n for (;;) {\n const idx = indexOfCRLF(this.buf);\n if (idx >= 0) {\n const line = this.dec.decode(this.buf.subarray(0, idx));\n this.buf = this.buf.subarray(idx + 2);\n return line;\n }\n await this.fill();\n }\n }\n\n private async readBytes(n: number): Promise {\n while (this.buf.length < n) await this.fill();\n const s = this.dec.decode(this.buf.subarray(0, n));\n this.buf = this.buf.subarray(n);\n return s;\n }\n\n // Reads one full response (handles {N} literals), returns text with literals replaced by placeholders.\n async readResponse(): Promise {\n let line = \"\";\n const literals: string[] = [];\n for (;;) {\n const part = await this.readLine();\n line += part;\n const m = /\\{(\\d+)\\}$/.exec(part);\n if (!m) break;\n literals.push(await this.readBytes(parseInt(m[1])));\n line += ``;\n }\n return { line, literals };\n }\n\n async cmd(command: string): Promise<{ untagged: Resp[]; tagged: string }> {\n const t = \"A\" + (++this.tag).toString().padStart(4, \"0\");\n await this.conn.write(this.enc.encode(`${t} ${command}\\r\\n`));\n const untagged: Resp[] = [];\n for (;;) {\n const r = await this.readResponse();\n if (r.line.startsWith(t + \" \")) {\n if (!r.line.startsWith(t + \" OK\")) throw new Error(`${command.split(\" \")[0]} failed: ${r.line}`);\n return { untagged, tagged: r.line };\n }\n untagged.push(r);\n }\n }\n\n async login(user: string, pass: string) {\n const q = (s: string) => '\"' + s.replace(/([\"\\\\])/g, \"\\\\$1\") + '\"';\n await this.cmd(`LOGIN ${q(user)} ${q(pass)}`);\n }\n\n async listFolders(): Promise<{ name: string; flags: string[] }[]> {\n const { untagged } = await this.cmd('LIST \"\" \"*\" RETURN (SPECIAL-USE)');\n const out: { name: string; flags: string[] }[] = [];\n for (const r of untagged) {\n const m = /^\\* LIST \$([^)]*)\$ (?:\"[^\"]*\"|NIL) (?:\"((?:[^\"\\\\]|\\\\.)*)\"|(\\S+))$/.exec(r.line);\n if (m) out.push({ name: m[2] !== undefined ? m[2].replace(/\\\\(.)/g, \"$1\") : m[3], flags: m[1].split(\" \").filter(Boolean) });\n }\n return out;\n }\n\n async select(folder: string): Promise {\n const { untagged } = await this.cmd(`SELECT \"${folder}\"`);\n for (const r of untagged) { const m = /^\\* (\\d+) EXISTS/.exec(r.line); if (m) return parseInt(m[1]); }\n return 0;\n }\n\n async uidSearchAll(): Promise {\n const { untagged } = await this.cmd(\"UID SEARCH ALL\");\n const ids: number[] = [];\n for (const r of untagged) if (r.line.startsWith(\"* SEARCH\")) ids.push(...r.line.slice(8).trim().split(/\\s+/).filter(Boolean).map(Number));\n return ids;\n }\n\n // Fetch selected headers + size for a UID set string like \"1:500\" or \"1,5,9\".\n async fetchHeaders(uidSet: string): Promise> {\n const { untagged } = await this.cmd(\n `UID FETCH ${uidSet} (UID RFC822.SIZE BODY.PEEK[HEADER.FIELDS (FROM SUBJECT DATE LIST-UNSUBSCRIBE LIST-ID PRECEDENCE X-MAILER AUTO-SUBMITTED)])`,\n );\n const out = new Map();\n for (const r of untagged) {\n if (!/ FETCH \\(/.test(r.line)) continue;\n const uid = /UID (\\d+)/.exec(r.line); const size = /RFC822\\.SIZE (\\d+)/.exec(r.line);\n if (uid) out.set(parseInt(uid[1]), { hdr: r.literals[0] ?? \"\", size: size ? parseInt(size[1]) : 0 });\n }\n return out;\n }\n\n async uidMove(uidSet: string, dest: string) { await this.cmd(`UID MOVE ${uidSet} \"${dest}\"`); }\n async uidDelete(uidSet: string) { await this.cmd(`UID STORE ${uidSet} +FLAGS.SILENT (\\\\Deleted)`); }\n async expunge() { await this.cmd(\"EXPUNGE\"); }\n async logout() { try { await this.cmd(\"LOGOUT\"); } catch { /* ignore */ } this.conn.close(); }\n}\n\nfunction indexOfCRLF(b: Uint8Array): number {\n for (let i = 0; i + 1 < b.length; i++) if (b[i] === 13 && b[i + 1] === 10) return i;\n return -1;\n}\n\nexport function parseHeaders(raw: string): Record {\n const h: Record = {};\n const unfolded = raw.replace(/\\r\\n[ \\t]+/g, \" \");\n for (const line of unfolded.split(\"\\r\\n\")) {\n const i = line.indexOf(\":\"); if (i < 0) continue;\n const k = line.slice(0, i).trim().toLowerCase();\n h[k] = decodeMime(line.slice(i + 1).trim());\n }\n return h;\n}\n\n// Decode RFC 2047 encoded words (=?charset?B|Q?...?=) — good enough for sender names/subjects.\nexport function decodeMime(s: string): string {\n return s.replace(/\\?=\\s+=\\?/g, \"?==?\").replace(/=\\?([^?]+)\\?([BbQq])\\?([^?]*)\\?=/g, (_m, cs, enc, txt) => {\n try {\n let bytes: Uint8Array;\n if (enc.toUpperCase() === \"B\") bytes = Uint8Array.from(atob(txt), (c) => c.charCodeAt(0));\n else bytes = Uint8Array.from(txt.replace(/_/g, \" \").replace(/=([0-9A-Fa-f]{2})/g, (_x: string, hx: string) => String.fromCharCode(parseInt(hx, 16))), (c: string) => c.charCodeAt(0));\n return new TextDecoder(cs.toLowerCase() === \"utf8\" ? 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