Proxito: remove old implementation (#10660)

Mostly removing old code, there is only one small custom addition

https://github.com/readthedocs/readthedocs.org/blob/6595bdac198b482e1279c0e3b1925198f6baa631/readthedocs/proxito/views/serve.py#L144-L146

Django doesn't capture the first slash, previously we were getting the path from request.path_info, that includes the slash! When a request is done to `/` the path is set to "" (empty), our code relies on that being `/`.

- Closes #10408
- Closes #8399

### How to deploy this change

- Deploy everything as usual, but don't run the `projects 0105` migration!!!
- After deploy is done, run the `projects 0105`  migration

readthedocs/api/v2/serializers.py

@@ -30,7 +30,6 @@ class Meta:
             "documentation_type",
             "users",
             "canonical_url",
-            "urlconf",
             "custom_prefix",
         )
 

readthedocs/core/resolver.py

@@ -64,7 +64,6 @@ def base_resolve_path(
         project_relationship=None,
         subdomain=None,
         cname=None,
-        urlconf=None,
         custom_prefix=None,
     ):
         """
@@ -97,38 +96,6 @@ def base_resolve_path(
         else:
             path = unsafe_join_url_path(path, "{language}/{version}/{filename}")
 
-        # TODO: remove this when all projects have migrated to path prefixes.
-        # Allow users to override their own URLConf
-        # If a custom prefix is given, we don't use the custom URLConf,
-        # since they are not compatible with each other.
-        # We also don't check if the project has the new proxito implementation
-        # enabled, this is so we can start generating links with the new
-        # custom prefixes without starting to serve docs with it (this helps to ease
-        # the migration from urlconf to custom prefixes).
-        if urlconf and not custom_prefix:
-            path = urlconf
-            path = path.replace(
-                "$version",
-                "{version}",
-            )
-            path = path.replace(
-                '$language',
-                '{language}',
-            )
-            path = path.replace(
-                '$filename',
-                '{filename}',
-            )
-            path = path.replace(
-                "$subproject",
-                "{subproject}",
-            )
-            if "$" in path:
-                log.warning(
-                    "Unconverted variable in a resolver URLConf.",
-                    path=path,
-                )
-
         subproject_alias = project_relationship.alias if project_relationship else ""
         return path.format(
             project=project_slug,
@@ -147,7 +114,6 @@ def resolve_path(
             single_version=None,
             subdomain=None,
             cname=None,
-            urlconf=None,
     ):
         """Resolve a URL with a subset of fields defined."""
         version_slug = version_slug or project.get_default_version()
@@ -181,7 +147,6 @@ def resolve_path(
             project_relationship=project_relationship,
             cname=cname,
             subdomain=subdomain,
-            urlconf=urlconf or project.urlconf,
             custom_prefix=custom_prefix,
         )
 

readthedocs/core/unresolver.py

@@ -214,6 +214,8 @@ def unresolve_path(self, unresolved_domain, path, append_indexhtml=True):
         :param append_indexhtml: If `True` directories will be normalized
          to end with ``/index.html``.
         """
+        # Make sure we always have a leading slash.
+        path = self._normalize_filename(path)
         # We don't call unparse() on the path,
         # since it could be parsed as a full URL if it starts with a protocol.
         parsed_url = ParseResult(

readthedocs/projects/fixtures/test_data.json

@@ -17,7 +17,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -70,7 +69,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -123,7 +121,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -176,7 +173,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -229,7 +225,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -282,7 +277,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -335,7 +329,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -388,7 +381,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -441,7 +433,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -494,7 +485,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -547,7 +537,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -600,7 +589,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -653,7 +641,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -706,7 +693,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -757,7 +743,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -808,7 +793,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,
@@ -859,7 +843,6 @@
         "default_branch": null,
         "requirements_file": null,
         "documentation_type": "sphinx",
-        "urlconf": null,
         "external_builds_enabled": false,
         "external_builds_privacy_level": "public",
         "cdn_enabled": false,

readthedocs/projects/migrations/0105_remove_project_urlconf.py

@@ -0,0 +1,20 @@
+# Generated by Django 4.2.4 on 2023-08-23 20:35
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("projects", "0104_alter_httpheader_value"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="historicalproject",
+            name="urlconf",
+        ),
+        migrations.RemoveField(
+            model_name="project",
+            name="urlconf",
+        ),
+    ]