From 55210ddeb82132d5478e162cb41c90e7c03dc02c Mon Sep 17 00:00:00 2001
From: Junwei Zhao <wahyd4@gmail.com>
Date: Sat, 2 Nov 2024 22:13:38 +1100
Subject: [PATCH] Add template url

---
 data/db.sqlite3                               | Bin 192512 -> 204800 bytes
 links/forms.py                                |  24 ++++++++
 .../0008_alter_link_original_url.py           |  18 ++++++
 links/models.py                               |  52 +++++++++++++++++-
 links/templates/links/link_form.html          |   8 +++
 links/urls.py                                 |   1 +
 links/views.py                                |  33 +++++++++--
 locale/zh_Hans/LC_MESSAGES/django.mo          | Bin 3744 -> 3960 bytes
 locale/zh_Hans/LC_MESSAGES/django.po          |   5 +-
 new_theme/static/css/dist/styles.css          |  15 +++++
 10 files changed, 149 insertions(+), 7 deletions(-)
 create mode 100644 links/migrations/0008_alter_link_original_url.py

diff --git a/data/db.sqlite3 b/data/db.sqlite3
index 60f3aa4c9d05aef6f63669ac7da13dfccf25c90b..a6f7eda27cd66f2dd324d23abf4d46e945442347 100644
GIT binary patch
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diff --git a/links/forms.py b/links/forms.py
index eb71ceb..80b42f1 100644
--- a/links/forms.py
+++ b/links/forms.py
@@ -2,6 +2,8 @@ from django import forms
 from .models import Link
 from simplemde.fields import SimpleMDEField
 from django.utils.translation import gettext_lazy as _
+from django.core.validators import URLValidator
+import re
 
 class LinkForm(forms.ModelForm):
     text = SimpleMDEField()
@@ -14,6 +16,28 @@ class LinkForm(forms.ModelForm):
             'description': forms.Textarea(attrs={'rows': 3}),
         }
 
+    def clean_original_url(self):
+        url = self.cleaned_data.get('original_url')
+        if not url:
+            return url
+
+        # Extract template parameters
+        template_params = re.findall(r'\{([^{}]*)\}', url)
+
+        # Temporarily replace template parameters with placeholder
+        temp_url = url
+        for param in template_params:
+            param_full = '{' + param + '}'
+            temp_url = temp_url.replace(param_full, 'template-param')
+
+        # Validate the URL with placeholders
+        try:
+            URLValidator()(temp_url)
+        except forms.ValidationError:
+            raise forms.ValidationError(_("Please enter a valid URL. Template parameters are allowed in the format {param_name,default=value}."))
+
+        return url
+
     def clean(self):
         cleaned_data = super().clean()
         link_type = cleaned_data.get('link_type')
diff --git a/links/migrations/0008_alter_link_original_url.py b/links/migrations/0008_alter_link_original_url.py
new file mode 100644
index 0000000..3941461
--- /dev/null
+++ b/links/migrations/0008_alter_link_original_url.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.0.8 on 2024-11-02 11:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('links', '0007_link_description'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='link',
+            name='original_url',
+            field=models.TextField(blank=True, null=True),
+        ),
+    ]
diff --git a/links/models.py b/links/models.py
index 54d9f20..b9b88ea 100644
--- a/links/models.py
+++ b/links/models.py
@@ -2,6 +2,7 @@ from django.db import models
 from django.utils.translation import gettext_lazy as _
 from django.urls import reverse
 import logging
+import re
 
 logger = logging.getLogger(__name__)
 
@@ -11,8 +12,8 @@ class Link(models.Model):
         CUSTOM = 'CUSTOM', _('Custom')
 
     alias = models.SlugField(max_length=100, unique=True)
-    original_url = models.URLField(blank=True, null=True)
-    text = models.TextField(blank=True, null=True)  # 改为 TextField
+    original_url = models.TextField(blank=True, null=True)
+    text = models.TextField(blank=True, null=True)
     link_type = models.CharField(
         max_length=10,
         choices=LinkType.choices,
@@ -23,6 +24,53 @@ class Link(models.Model):
     updated_at = models.DateTimeField(auto_now=True)
     description = models.TextField(blank=True, null=True, verbose_name=_("Description"))
 
+    def get_template_parameters(self):
+        """Extract template parameters and their default values from original_url"""
+        pattern = r'\{([^{}]*)\}'
+        matches = re.finditer(pattern, self.original_url)
+        params = {}
+
+        for match in matches:
+            param_str = match.group(1)
+            if ',' in param_str:
+                param_name, default_value = param_str.split(',', 1)
+                default_value = default_value.strip()
+                if default_value.startswith('default='):
+                    default_value = default_value[8:].strip('"\'')
+                params[param_name.strip()] = default_value
+            else:
+                params[param_str.strip()] = None
+
+        return params
+
+    def get_processed_url(self, **kwargs):
+        """Process template URL with provided parameters"""
+        if not self.original_url:
+            return None
+
+        processed_url = self.original_url
+        pattern = r'\{([^{}]*)\}'
+        matches = re.finditer(pattern, self.original_url)
+
+        for match in matches:
+            param_str = match.group(1)
+            if ',' in param_str:
+                param_name, default_value = param_str.split(',', 1)
+                default_value = default_value.strip()
+                if default_value.startswith('default='):
+                    default_value = default_value[8:].strip('"\'')
+            else:
+                param_name = param_str.strip()
+                default_value = None
+
+            value = kwargs.get(param_name, default_value)
+            if value is None:
+                raise ValueError(f"No value provided for parameter {param_name}")
+
+            processed_url = processed_url.replace(f"{{{param_str}}}", str(value))
+
+        return processed_url
+
     def __str__(self):
         return self.alias
 
diff --git a/links/templates/links/link_form.html b/links/templates/links/link_form.html
index d9d204b..75421ab 100644
--- a/links/templates/links/link_form.html
+++ b/links/templates/links/link_form.html
@@ -45,6 +45,14 @@
                     {% trans "Custom type allows you to create a link with custom HTML content. Use this when you want to display a message or custom content instead of redirecting." %}
                 </p>
             </div>
+            <div id="template-description" class="bg-purple-50 border-l-4 border-purple-400 p-4 mb-4 {% if is_custom %}hidden{% endif %}">
+                <p class="text-sm text-purple-700">
+                    {% trans "Template type allows you to create dynamic URLs with parameters. Use {query, default=value} syntax in the URL." %}
+                </p>
+                <p class="text-sm text-purple-700 mt-2">
+                    {% trans "Example: https://google.com/search?q={query, default=hello}" %}
+                </p>
+            </div>
 
             <!-- Form -->
             <form method="post" class="space-y-6">
diff --git a/links/urls.py b/links/urls.py
index 44bd7d4..e7d553f 100644
--- a/links/urls.py
+++ b/links/urls.py
@@ -13,6 +13,7 @@ urlpatterns = [
     path('link/<int:pk>/edit/', views.LinkUpdateView.as_view(), name='link_update'),
     path('tools/', views.ToolsView.as_view(), name='tools'),
     path('<str:alias>/', views.redirect_to_original, name='redirect_to_original'),
+    path('<str:alias>/<str:param>/', views.redirect_to_original, name='redirect_to_original_with_param'),
     path('export/', views.export_links, name='export_links'),
 
     # New route for link detail view by alias
diff --git a/links/views.py b/links/views.py
index 4376f45..b115ce2 100644
--- a/links/views.py
+++ b/links/views.py
@@ -18,6 +18,7 @@ import random
 from django.utils.text import slugify
 import markdown
 import logging
+import re
 
 logger = logging.getLogger(__name__)
 
@@ -178,16 +179,40 @@ def delete_selected(request):
         Link.objects.filter(id__in=selected_ids).delete()
     return redirect('link_list')
 
-def redirect_to_original(request, alias):
-    # 将别名转换为小写并移除特殊字符
+def redirect_to_original(request, alias, param=None):
     processed_alias = ''.join(e for e in alias.lower() if e.isalnum())
 
     try:
         link = Link.objects.get(alias=processed_alias)
         link.click_count = F('click_count') + 1
         link.save()
-        ClickLog.objects.create(link=link)  # 记录点击
-        return redirect(link.original_url)
+        ClickLog.objects.create(link=link)
+
+        try:
+            # 如果是模板 URL 并且提供了参数
+            if param:
+                # 从 URL 中提取参数名
+                pattern = r'\{([^{}]*)\}'
+                matches = re.finditer(pattern, link.original_url)
+                for match in matches:
+                    param_str = match.group(1)
+                    if ',' in param_str:
+                        param_name = param_str.split(',')[0].strip()
+                    else:
+                        param_name = param_str.strip()
+                    # 使用提供的参数值
+                    url = link.get_processed_url(**{param_name: param})
+                    return redirect(url)
+
+            # 如果没有提供参数，使用默认值
+            url = link.get_processed_url()
+            if url is None:
+                url = link.original_url
+            return redirect(url)
+        except ValueError as e:
+            messages.error(request, str(e))
+            return redirect('link_list')
+
     except Link.DoesNotExist:
         messages.warning(request, _("The alias '{}' doesn't exist. Do you want to create a new one?").format(processed_alias))
         return redirect(reverse('link_create') + f'?alias={processed_alias}')
diff --git a/locale/zh_Hans/LC_MESSAGES/django.mo b/locale/zh_Hans/LC_MESSAGES/django.mo
index 19ebde9b441ee175c625e559041e5642355f641a..5ef2d4068c8743bde831b8fd23e56182087fbb47 100644
GIT binary patch
delta 1253
zcmYk)NlX+$6oBCxW)uP0gS$?<E6a!?Zp6fk!2@dIav?!%rBO(;WEjMR$QFqbB&Z|C
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zb%~o?0@v^ej^a{uFiQ$1p$}J}ETjvU;BAz`4^RpZVJdz^nLml=F^Y*;#3Y$tjFeEN
zm`Z(B&W$9xj4V=hq71x+vSoKM2m5dje#Y&%nAPpaTrA+TRiY$*&LmmDAWDA>5952>
zgt2U|#Ivzk2Ig@i9?~Aw7NdNU3n&vBv`sqRuKPXOhuWto`CjV&2yUf6f%2jeT#0iD
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zk^N`a)NcYM7{i|<iO!-VsM7jS5;f}QojQI`_n&BAq5PC@a4$}wY<UKg58?sjOU=LR
za$M%Ga3<$_xO3B3gvzGL-pC;p^Jr|BT21@^$oCIAS7+?hAz8B=8MGb#DQ7`q4tKKW
z@@MAyH@n=9EdODbJ9QWROxgxoI&F8L-c{y2XIo~SWmwfd%WIg%CDX1bGftl<@))PA
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E1*ZzamH+?%

delta 1023
zcmYk)Pe@cz6vy#1yk||LGddIf_0OOMO;a<LIf{sF!ir#W74&Z*(jTZcMNlqkC=h~H
z^^g|*r53r62wqTup{-izvPHEB+87}%GzeGH_eUq_!u9jcnS0N<-uIT<p0w7!=E8Af
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z|BvqIUC_MlUq*+}P@)|D4EodhWOcdv^g5$Tm`@a=BVj(fn|LR)gSnQuCmst=1#va`
TGz`Aqe-SS?q!RIPW@F+HGo@P+

diff --git a/locale/zh_Hans/LC_MESSAGES/django.po b/locale/zh_Hans/LC_MESSAGES/django.po
index cd3e47e..cec6387 100644
--- a/locale/zh_Hans/LC_MESSAGES/django.po
+++ b/locale/zh_Hans/LC_MESSAGES/django.po
@@ -1856,7 +1856,7 @@ msgstr "无效的JSON格式。预期是对象列表。"
 #: links/views.py:282
 msgid ""
 "Invalid item in JSON. Each item must be an object with an 'alias' field."
-msgstr "JSON中存在无效项。每个项目必须是包含'alias'字段的对象。"
+msgstr "JSON中存在无效项。每个项���必须是包含'alias'字段的对象。"
 
 #: links/views.py:295
 #, fuzzy, python-brace-format
@@ -1910,3 +1910,6 @@ msgstr "简体中文"
 
 msgid "Description"
 msgstr "描述"
+
+msgid "Please enter a valid URL. Template parameters are allowed in the format {param_name,default=value}."
+msgstr "请输入有效的URL。允许使用模板参数，格式为 {参数名,default=默认值}。"
diff --git a/new_theme/static/css/dist/styles.css b/new_theme/static/css/dist/styles.css
index 41b8910..cfeedf9 100644
--- a/new_theme/static/css/dist/styles.css
+++ b/new_theme/static/css/dist/styles.css
@@ -1039,6 +1039,11 @@ video {
   border-color: rgb(74 222 128 / var(--tw-border-opacity));
 }
 
+.border-purple-400 {
+  --tw-border-opacity: 1;
+  border-color: rgb(192 132 252 / var(--tw-border-opacity));
+}
+
 .border-transparent {
   border-color: transparent;
 }
@@ -1098,6 +1103,11 @@ video {
   background-color: rgb(34 197 94 / var(--tw-bg-opacity));
 }
 
+.bg-purple-50 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(250 245 255 / var(--tw-bg-opacity));
+}
+
 .bg-red-500 {
   --tw-bg-opacity: 1;
   background-color: rgb(239 68 68 / var(--tw-bg-opacity));
@@ -1352,6 +1362,11 @@ video {
   color: rgb(79 70 229 / var(--tw-text-opacity));
 }
 
+.text-purple-700 {
+  --tw-text-opacity: 1;
+  color: rgb(126 34 206 / var(--tw-text-opacity));
+}
+
 .text-red-600 {
   --tw-text-opacity: 1;
   color: rgb(220 38 38 / var(--tw-text-opacity));