feat: replace backslashes in _processFile

lib/box/index.ts

@@ -160,8 +160,10 @@ class Box extends EventEmitter {
       if (!params) return count;
 
       const file = new File({
+        // source is used for filesystem path, keep backslashes on Windows
         source: join(base, path),
-        path,
+        // path is used for URL path, replace backslashes on Windows
+        path: escapeBackslash(path),
         params,
         type
       });

lib/models/post_asset.ts

@@ -1,5 +1,5 @@
 import warehouse from 'warehouse';
-import { join } from 'path';
+import { join, posix } from 'path';
 import type Hexo from '../hexo';
 
 export = (ctx: Hexo) => {
@@ -19,7 +19,8 @@ export = (ctx: Hexo) => {
     // PostAsset.path is file path relative to `public_dir`
     // no need to urlescape, #1562
     // strip /\.html?$/ extensions on permalink, #2134
-    return join(post.path.replace(/\.html?$/, ''), this.slug);
+    // Replace backslashes on Windows using posix.join
+    return posix.join(post.path.replace(/\.html?$/, ''), this.slug);
   });
 
   PostAsset.virtual('source').get(function() {

lib/plugins/tag/asset_link.ts

@@ -28,7 +28,7 @@ export = (ctx: Hexo) => {
     const attrTitle = escapeHTML(title);
     if (escape === 'true') title = attrTitle;
 
-    const link = url_for.call(ctx, asset.path.replace(/\\/g, '/'));
+    const link = url_for.call(ctx, asset.path);
 
     return `<a href="${link}" title="${attrTitle}">${title}</a>`;
   };

lib/plugins/tag/asset_path.ts

@@ -17,7 +17,7 @@ export = (ctx: Hexo) => {
     const asset = PostAsset.findOne({post: this._id, slug});
     if (!asset) return;
 
-    const path = url_for.call(ctx, asset.path.replace(/\\/g, '/'));
+    const path = url_for.call(ctx, asset.path);
 
     return path;
   };