Update sharing domain

links/migrations/0040_site_settings.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.2.11 on 2026-03-21 10:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('links', '0039_file_upload'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SiteSettings',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('public_sharing_domain', models.CharField(blank=True, default='', help_text='Domain (with protocol) used for public sharing links, e.g. https://go.example.com. Leave blank to use the same domain as the app.', max_length=255, verbose_name='Public Sharing Domain')),
+            ],
+            options={
+                'verbose_name': 'Site Settings',
+            },
+        ),
+    ]

links/models.py

@@ -387,9 +387,16 @@ class FileUpload(models.Model):
 
     @property
     def public_url(self):
-        import re
-        safe_name = re.sub(r'[^\w.\-]', '-', self.name)
-        return f'/public/files/{self.pk}-{safe_name}'
+        import re as _re
+        safe_name = _re.sub(r'[^\w.\-]', '-', self.name)
+        path = f'/public/files/{self.pk}-{safe_name}'
+        if not self.is_public:
+            return path
+        try:
+            domain = SiteSettings.get().public_sharing_domain.rstrip('/')
+        except Exception:
+            domain = ''
+        return f'{domain}{path}' if domain else path
 
     def formatted_size(self):
         if self.size < 1024:
@@ -399,3 +406,35 @@ class FileUpload(models.Model):
         elif self.size < 1024 * 1024 * 1024:
             return f"{self.size / (1024 * 1024):.1f} MB"
         return f"{self.size / (1024 * 1024 * 1024):.2f} GB"
+
+
+class SiteSettings(models.Model):
+    """
+    Singleton model for app-wide configuration.
+    Always use SiteSettings.get() to retrieve the instance.
+    """
+    public_sharing_domain = models.CharField(
+        _('Public Sharing Domain'),
+        max_length=255,
+        blank=True,
+        default='',
+        help_text=_(
+            'Domain (with protocol) used for public sharing links, e.g. https://go.example.com. '
+            'Leave blank to use the same domain as the app.'
+        ),
+    )
+
+    class Meta:
+        verbose_name = _('Site Settings')
+
+    def __str__(self):
+        return 'Site Settings'
+
+    @classmethod
+    def get(cls):
+        obj, _ = cls.objects.get_or_create(pk=1)
+        return obj
+
+    def save(self, *args, **kwargs):
+        self.pk = 1
+        super().save(*args, **kwargs)

links/templates/links/settings.html

@@ -0,0 +1,56 @@
+{% extends 'base.html' %}
+{% load i18n %}
+{% load static %}
+
+{% block extra_css %}
+<link href="{% static 'css/dist/styles.css' %}" rel="stylesheet">
+{% endblock %}
+
+{% block content %}
+<div class="max-w-2xl mx-auto">
+    <h1 class="text-2xl font-bold text-gray-800 mb-6">{% trans "Settings" %}</h1>
+
+    <form method="post">
+        {% csrf_token %}
+
+        <!-- Public Sharing Domain -->
+        <div class="bg-white rounded-lg shadow p-6 mb-6">
+            <h2 class="text-lg font-semibold text-gray-700 mb-1">{% trans "Public Sharing Domain" %}</h2>
+            <p class="text-sm text-gray-500 mb-4">
+                {% trans "Domain (with protocol) used for public file sharing links. Leave blank to use the same domain as the app." %}
+                <br>
+                <span class="font-mono text-xs text-gray-400">{% trans "Example:" %} https://go.example.com</span>
+            </p>
+            <input
+                type="url"
+                name="public_sharing_domain"
+                id="public_sharing_domain"
+                value="{{ site_settings.public_sharing_domain }}"
+                placeholder="https://go.example.com"
+                class="w-full border border-gray-300 rounded-md px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+            >
+            {% if site_settings.public_sharing_domain %}
+            <p class="mt-2 text-xs text-green-600">
+                {% trans "Active. Public links will use:" %}
+                <span class="font-mono">{{ site_settings.public_sharing_domain }}/public/files/…</span>
+            </p>
+            {% else %}
+            <p class="mt-2 text-xs text-gray-400">
+                {% trans "Not set. Public links will use the app's own domain." %}
+            </p>
+            {% endif %}
+        </div>
+
+        <div class="flex justify-end">
+            <button
+                type="submit"
+                style="background:#1d4ed8;color:#fff;padding:.5rem 1.5rem;border-radius:.375rem;font-size:.875rem;font-weight:500;cursor:pointer;"
+                onmouseover="this.style.background='#1e40af'"
+                onmouseout="this.style.background='#1d4ed8'"
+            >
+                {% trans "Save Settings" %}
+            </button>
+        </div>
+    </form>
+</div>
+{% endblock %}

links/urls.py

@@ -21,6 +21,7 @@ urlpatterns = [
     path('ui/tools/', views.ToolsView.as_view(), name='tools'),
     path('tools/export-database/', views.export_database, name='export_database'),
     path('ui/help/', views.HelpView.as_view(), name='help'),
+    path('ui/settings/', views.SiteSettingsView.as_view(), name='site-settings'),
 
     # Pages
     path('ui/pages/', page_views.PageListView.as_view(), name='page-list'),

links/views.py

@@ -4,7 +4,7 @@ from django.views import View  # Add this import
 from django.urls import reverse_lazy, reverse  # Add 'reverse' here
 from django.db.models import F, Count, Q, Case, When, Value, IntegerField
 from django.db.models.functions import TruncDate
-from .models import Link, ClickLog, LinkChangeLog, Page, Post
+from .models import Link, ClickLog, LinkChangeLog, Page, Post, SiteSettings
 from .forms import LinkForm, PageForm
 import json
 from django.core.serializers.json import DjangoJSONEncoder
@@ -533,6 +533,21 @@ def export_database(request):
 class HelpView(TemplateView):
     template_name = 'links/help.html'
 
+
+class SiteSettingsView(View):
+    template_name = 'links/settings.html'
+
+    def get(self, request):
+        site_settings = SiteSettings.get()
+        return render(request, self.template_name, {'site_settings': site_settings})
+
+    def post(self, request):
+        site_settings = SiteSettings.get()
+        site_settings.public_sharing_domain = request.POST.get('public_sharing_domain', '').strip()
+        site_settings.save()
+        messages.success(request, _('Settings saved.'))
+        return redirect('site-settings')
+
 @require_http_methods(["POST"])
 def generate_tts(request, post_id):
     """Generate TTS audio for a post"""

templates/base.html

@@ -177,6 +177,15 @@
                                 {% trans "Help" %}
                             </div>
                         </a>
+
+                        <a href="{% url 'site-settings' %}" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100">
+                            <div class="flex items-center">
+                                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6V4m0 2a2 2 0 100 4m0-4a2 2 0 110 4m-6 8a2 2 0 100-4m0 4a2 2 0 110-4m0 4v2m0-6V4m6 6v10m6-2a2 2 0 100-4m0 4a2 2 0 110-4m0 4v2m0-6V4"/>
+                                </svg>
+                                {% trans "Settings" %}
+                            </div>
+                        </a>
                     </div>
                 </div>
                 <!-- 语言选择器 -->