Add max_length settings to export zip

server/export_zip.ts

@@ -1,7 +1,7 @@
 import { Uint8ArrayReader, ZipWriter } from "zipjs/index.js";
 import { EhDb, PMeta } from "../db.ts";
 import { ExportZipConfig } from "../tasks/export_zip.ts";
-import { addZero, configureZipJs } from "../utils.ts";
+import { addZero, configureZipJs, limitFilename } from "../utils.ts";
 
 export function get_export_zip_response(
     gid: number,
@@ -47,12 +47,13 @@ export function get_export_zip_response(
     let closed = false;
     const signalc = new AbortController();
     const signal = signalc.signal;
+    const maxLength = cfg.max_length || 0;
     const download_task = async (p: PMeta) => {
         const f = db.get_files(p.token);
         if (f.length) {
             const r = await Deno.readFile(f[0].path, { signal });
             await zip_writer.add(
-                `${addZero(p.index, l)}_${p.name}`,
+                limitFilename(`${addZero(p.index, l)}_${p.name}`, maxLength),
                 new Uint8ArrayReader(r),
                 { signal },
             );

server/parse_form.ts

@@ -12,3 +12,14 @@ export async function parse_bool<T extends boolean | null>(
         return n !== 0;
     }
 }
+
+export async function parse_int<T extends number | null>(
+    value: FormDataEntryValue | null,
+    def: T,
+): Promise<number | T> {
+    if (value === null) return def;
+    const v = typeof value === "string" ? value : await value.text();
+    const n = parseInt(v);
+    if (isNaN(n)) return def;
+    return n;
+}

server/parse_form_test.ts

@@ -1,5 +1,5 @@
 import { assertEquals } from "std/testing/asserts.ts";
-import { parse_bool } from "./parse_form.ts";
+import { parse_bool, parse_int } from "./parse_form.ts";
 
 Deno.test("parse_bool_test", async () => {
     const f = new FormData();
@@ -15,3 +15,15 @@ Deno.test("parse_bool_test", async () => {
     f.append("e", "tRUE", "a.png");
     assertEquals(await parse_bool(f.get("e"), null), true);
 });
+
+Deno.test("parse_int_test", async () => {
+    const f = new FormData();
+    f.append("a", "d");
+    assertEquals(await parse_int(f.get("a"), null), null);
+    assertEquals(await parse_int(f.get("a"), 1), 1);
+    f.append("c", "1");
+    assertEquals(await parse_int(f.get("c"), null), 1);
+    assertEquals(await parse_int(f.get("c"), 2), 1);
+    f.append("d", "-1");
+    assertEquals(await parse_int(f.get("d"), null), -1);
+});