fix: mail-parser-wasm missing message/rfc822 attachments (#897)

* fix: mail-parser-wasm treat message/rfc822 attachments as regular attachments

Previously, message/rfc822 attachments (e.g. .eml files) were
recursively parsed for sub-attachments instead of being returned
directly, causing them to be silently dropped. Now all attachments
are returned regardless of type.

Bump version to 0.2.2. Add .gitignore for worker build artifacts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: add missing entries to worker .gitignore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: bump mail-parser-wasm to 0.2.2 in frontend

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

frontend/package.json

@@ -31,7 +31,7 @@
     "axios": "^1.13.6",
     "dompurify": "^3.3.3",
     "jszip": "^3.10.1",
-    "mail-parser-wasm": "^0.2.1",
+    "mail-parser-wasm": "^0.2.2",
     "naive-ui": "^2.44.1",
     "postal-mime": "^2.7.3",
     "vooks": "^0.2.12",

frontend/pnpm-lock.yaml

@@ -36,8 +36,8 @@ importers:
         specifier: ^3.10.1
         version: 3.10.1
       mail-parser-wasm:
-        specifier: ^0.2.1
-        version: 0.2.1
+        specifier: ^0.2.2
+        version: 0.2.2
       naive-ui:
         specifier: ^2.44.1
         version: 2.44.1(vue@3.5.30(typescript@5.4.5))
@@ -2355,8 +2355,8 @@ packages:
   magic-string@0.30.21:
     resolution: {integrity: sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==}
 
-  mail-parser-wasm@0.2.1:
-    resolution: {integrity: sha512-ba1s8Ah9UI0AhEGCzf61h0wYOE4Wg/iceRZ7GCFrEldJjf3AAIDFdZVK853nwxIVE/bLnr0dJzrR7RxB9aGSlA==}
+  mail-parser-wasm@0.2.2:
+    resolution: {integrity: sha512-Am8xdpbDFkMBMOLW5ncTgIMT4ikCG7v42S02oXkUHwSvF00xn/LvWsWCnp2BY9Jlmy30Dq7cT3V3R8gTbr005w==}
 
   math-intrinsics@1.1.0:
     resolution: {integrity: sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==}
@@ -5570,7 +5570,7 @@ snapshots:
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.5
 
-  mail-parser-wasm@0.2.1: {}
+  mail-parser-wasm@0.2.2: {}
 
   math-intrinsics@1.1.0: {}
 

mail-parser-wasm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mail-parser-wasm"
-version = "0.2.1"
+version = "0.2.2"
 edition = "2021"
 description = "A simple mail parser for wasm"
 license = "MIT"

mail-parser-wasm/src/lib.rs

@@ -101,38 +101,29 @@ impl MessageResult {
 pub fn parse_attachment(message: &mail_parser::Message) -> Vec<AttachmentResult> {
     let mut attachments: Vec<AttachmentResult> = Vec::new();
     for attachment in message.attachments() {
-        if !attachment.is_message() {
-            attachments.push(AttachmentResult {
-                content_id: attachment
-                    .content_id()
-                    .map(|id| id.to_owned())
-                    .unwrap_or(String::new()),
-                content_type: attachment
-                    .content_type()
-                    .map(|ct| {
-                        let c_type = ct.c_type.clone().into_owned();
-                        let c_subtype = ct.c_subtype.clone();
-                        if c_subtype.is_none() {
-                            return c_type;
-                        } else {
-                            return format!("{}/{}", c_type, c_subtype.unwrap());
-                        }
-                    })
-                    .unwrap_or(String::new()),
-                filename: attachment
-                    .attachment_name()
-                    .map(|name| name.to_owned())
-                    .unwrap_or(String::new()),
-                content: attachment.contents().to_vec(),
-            });
-        } else {
-            attachments.append(
-                &mut attachment
-                    .message()
-                    .map(|msg| parse_attachment(msg))
-                    .unwrap_or(Vec::new()),
-            );
-        }
+        attachments.push(AttachmentResult {
+            content_id: attachment
+                .content_id()
+                .map(|id| id.to_owned())
+                .unwrap_or(String::new()),
+            content_type: attachment
+                .content_type()
+                .map(|ct| {
+                    let c_type = ct.c_type.clone().into_owned();
+                    let c_subtype = ct.c_subtype.clone();
+                    if c_subtype.is_none() {
+                        return c_type;
+                    } else {
+                        return format!("{}/{}", c_type, c_subtype.unwrap());
+                    }
+                })
+                .unwrap_or(String::new()),
+            filename: attachment
+                .attachment_name()
+                .map(|name| name.to_owned())
+                .unwrap_or(String::new()),
+            content: attachment.contents().to_vec(),
+        });
     }
     attachments
 }

mail-parser-wasm/worker/.gitignore

@@ -0,0 +1,5 @@
+mail_parser_wasm_bg.wasm
+mail_parser_wasm_bg.wasm.d.ts
+mail_parser_wasm.js
+mail_parser_wasm.d.ts
+README.md

mail-parser-wasm/worker/package.json

@@ -7,7 +7,7 @@
     "url": "https://github.com/dreamhunter2333/cloudflare_temp_email",
     "directory": "mail-parser-wasm"
   },
-  "version": "0.2.1",
+  "version": "0.2.2",
   "license": "MIT",
   "files": [
     "mail_parser_wasm_bg.wasm",