server/info: expose a few config variables

API.md

@@ -1376,7 +1376,15 @@ data.
         "featuredPost": <featured-post>,
         "featuringTime": <time>,
         "featuringUser": <user>,
-        "serverTime": <server-time>
+        "serverTime": <server-time>,
+        "config": {
+            "userNameRegex": <user-name-regex>,
+            "passwordRegex": <password-regex>,
+            "tagNameRegex": <tag-name-regex>,
+            "tagCategoryNameRegex": <tag-category-name-regex>,
+            "defaultUserRank": <default-rank>,
+            "privileges": <privileges>
+        }
     }
     ```
 
@@ -1384,7 +1392,10 @@ data.
 
     Retrieves simple statistics. `<featured-post>` is null if there is no
     featured post yet. `<server-time>` is pretty much the same as the `Date`
-    HTTP field, only formatted in a manner consistent with other dates.
+    HTTP field, only formatted in a manner consistent with other dates. Values
+    in `config` key are taken directly from the server config, with the
+    exception of privilege array keys being converted to lower camel case to
+    match the API convention.
 
 
 

server/szurubooru/api/info_api.py

@@ -2,7 +2,7 @@ import datetime
 import os
 from szurubooru import config
 from szurubooru.api.base_api import BaseApi
-from szurubooru.func import posts, users
+from szurubooru.func import posts, users, util
 
 class InfoApi(BaseApi):
     def __init__(self):
@@ -21,6 +21,15 @@ class InfoApi(BaseApi):
             'featuringUser': users.serialize_user(post_feature.user, ctx.user) \
                 if post_feature else None,
             'serverTime': datetime.datetime.now(),
+            'config': {
+                'userNameRegex': config.config['user_name_regex'],
+                'passwordRegex': config.config['password_regex'],
+                'tagNameRegex': config.config['tag_name_regex'],
+                'tagCategoryNameRegex': config.config['tag_category_name_regex'],
+                'defaultUserRank': config.config['default_rank'],
+                'privileges': util.snake_case_to_lower_camel_case_keys(
+                    config.config['privileges']),
+            },
         }
 
     def _get_disk_usage(self):

server/szurubooru/func/util.py

@@ -6,6 +6,16 @@ import tempfile
 from contextlib import contextmanager
 from szurubooru import errors
 
+def snake_case_to_lower_camel_case(text):
+    components = text.split('_')
+    return components[0] + ''.join(word[0].upper() + word[1:] for word in components[1:])
+
+def snake_case_to_lower_camel_case_keys(source):
+    target = {}
+    for key, value in source.items():
+        target[snake_case_to_lower_camel_case(key)] = value
+    return target
+
 def get_serialization_options(ctx):
     return ctx.get_param_as_list('fields', required=False, default=None)
 

server/szurubooru/tests/api/test_info.py

@@ -5,8 +5,32 @@ def test_info_api(
         tmpdir, config_injector, context_factory, post_factory, fake_datetime):
     directory = tmpdir.mkdir('data')
     directory.join('test.txt').write('abc')
-    config_injector({'data_dir': str(directory)})
+    config_injector({
+        'data_dir': str(directory),
+        'user_name_regex': '1',
+        'password_regex': '2',
+        'tag_name_regex': '3',
+        'tag_category_name_regex': '4',
+        'default_rank': '5',
+        'privileges': {
+            'test_key1': 'test_value1',
+            'test_key2': 'test_value2',
+        },
+    })
     db.session.add_all([post_factory(), post_factory()])
+
+    expected_config_key = {
+        'userNameRegex': '1',
+        'passwordRegex': '2',
+        'tagNameRegex': '3',
+        'tagCategoryNameRegex': '4',
+        'defaultUserRank': '5',
+        'privileges': {
+            'testKey1': 'test_value1',
+            'testKey2': 'test_value2',
+        },
+    }
+
     info_api = api.InfoApi()
     with fake_datetime('2016-01-01 13:00'):
         assert info_api.get(context_factory()) == {
@@ -16,6 +40,7 @@ def test_info_api(
             'featuringTime': None,
             'featuringUser': None,
             'serverTime': datetime(2016, 1, 1, 13, 0),
+            'config': expected_config_key,
         }
     directory.join('test2.txt').write('abc')
     with fake_datetime('2016-01-01 13:59'):
@@ -26,6 +51,7 @@ def test_info_api(
             'featuringTime': None,
             'featuringUser': None,
             'serverTime': datetime(2016, 1, 1, 13, 59),
+            'config': expected_config_key,
         }
     with fake_datetime('2016-01-01 14:01'):
         assert info_api.get(context_factory()) == {
@@ -35,4 +61,5 @@ def test_info_api(
             'featuringTime': None,
             'featuringUser': None,
             'serverTime': datetime(2016, 1, 1, 14, 1),
+            'config': expected_config_key,
         }