ai_v/venv/Lib/site-packages/jinja2/utils.py
24024 af7c11d7f9 feat(api): 实现图像生成及后台同步功能
- 新增图像生成接口,支持试用、积分和自定义API Key模式
- 实现生成图片结果异步上传至MinIO存储,带重试机制
- 优化积分预扣除和异常退还逻辑,保障用户积分准确
- 添加获取生成历史记录接口,支持时间范围和分页
- 提供本地字典配置接口,支持模型、比例、提示模板和尺寸
- 实现图片批量上传接口,支持S3兼容对象存储

feat(admin): 增加管理员角色管理与权限分配接口

- 实现角色列表查询、角色创建、更新及删除功能
- 增加权限列表查询接口
- 实现用户角色分配接口,便于统一管理用户权限
- 增加系统字典增删查改接口,支持分类过滤和排序
- 权限控制全面覆盖管理接口,保证安全访问

feat(auth): 完善用户登录注册及权限相关接口与页面

- 实现手机号验证码发送及校验功能,保障注册安全
- 支持手机号注册、登录及退出接口,集成日志记录
- 增加修改密码功能,验证原密码后更新
- 提供动态导航菜单接口,基于权限展示不同菜单
- 实现管理界面路由及日志、角色、字典管理页面访问权限控制
- 添加系统日志查询接口,支持关键词和等级筛选

feat(app): 初始化Flask应用并配置蓝图与数据库

- 创建应用程序工厂,加载配置,初始化数据库和Redis客户端
- 注册认证、API及管理员蓝图,整合路由
- 根路由渲染主页模板
- 应用上下文中自动创建数据库表,保证运行环境准备完毕

feat(database): 提供数据库创建与迁移支持脚本

- 新增数据库创建脚本,支持自动检测是否已存在
- 添加数据库表初始化脚本,支持创建和删除所有表
- 实现RBAC权限初始化,包含基础权限和角色创建
- 新增字段手动修复脚本,添加用户API Key和积分字段
- 强制迁移脚本支持清理连接和修复表结构,初始化默认数据及角色分配

feat(config): 新增系统配置参数

- 配置数据库、Redis、Session和MinIO相关参数
- 添加AI接口地址及试用Key配置
- 集成阿里云短信服务配置及开发模式相关参数

feat(extensions): 初始化数据库、Redis和MinIO客户端

- 创建全局SQLAlchemy数据库实例和Redis客户端
- 配置基于boto3的MinIO兼容S3客户端

chore(logs): 添加示例系统日志文件

- 记录用户请求、验证码发送成功与失败的日志信息
2026-01-12 00:53:31 +08:00

767 lines
24 KiB
Python

import enum
import json
import os
import re
import typing as t
from collections import abc
from collections import deque
from random import choice
from random import randrange
from threading import Lock
from types import CodeType
from urllib.parse import quote_from_bytes
import markupsafe
if t.TYPE_CHECKING:
import typing_extensions as te
F = t.TypeVar("F", bound=t.Callable[..., t.Any])
class _MissingType:
def __repr__(self) -> str:
return "missing"
def __reduce__(self) -> str:
return "missing"
missing: t.Any = _MissingType()
"""Special singleton representing missing values for the runtime."""
internal_code: t.MutableSet[CodeType] = set()
concat = "".join
def pass_context(f: F) -> F:
"""Pass the :class:`~jinja2.runtime.Context` as the first argument
to the decorated function when called while rendering a template.
Can be used on functions, filters, and tests.
If only ``Context.eval_context`` is needed, use
:func:`pass_eval_context`. If only ``Context.environment`` is
needed, use :func:`pass_environment`.
.. versionadded:: 3.0.0
Replaces ``contextfunction`` and ``contextfilter``.
"""
f.jinja_pass_arg = _PassArg.context # type: ignore
return f
def pass_eval_context(f: F) -> F:
"""Pass the :class:`~jinja2.nodes.EvalContext` as the first argument
to the decorated function when called while rendering a template.
See :ref:`eval-context`.
Can be used on functions, filters, and tests.
If only ``EvalContext.environment`` is needed, use
:func:`pass_environment`.
.. versionadded:: 3.0.0
Replaces ``evalcontextfunction`` and ``evalcontextfilter``.
"""
f.jinja_pass_arg = _PassArg.eval_context # type: ignore
return f
def pass_environment(f: F) -> F:
"""Pass the :class:`~jinja2.Environment` as the first argument to
the decorated function when called while rendering a template.
Can be used on functions, filters, and tests.
.. versionadded:: 3.0.0
Replaces ``environmentfunction`` and ``environmentfilter``.
"""
f.jinja_pass_arg = _PassArg.environment # type: ignore
return f
class _PassArg(enum.Enum):
context = enum.auto()
eval_context = enum.auto()
environment = enum.auto()
@classmethod
def from_obj(cls, obj: F) -> t.Optional["_PassArg"]:
if hasattr(obj, "jinja_pass_arg"):
return obj.jinja_pass_arg # type: ignore
return None
def internalcode(f: F) -> F:
"""Marks the function as internally used"""
internal_code.add(f.__code__)
return f
def is_undefined(obj: t.Any) -> bool:
"""Check if the object passed is undefined. This does nothing more than
performing an instance check against :class:`Undefined` but looks nicer.
This can be used for custom filters or tests that want to react to
undefined variables. For example a custom default filter can look like
this::
def default(var, default=''):
if is_undefined(var):
return default
return var
"""
from .runtime import Undefined
return isinstance(obj, Undefined)
def consume(iterable: t.Iterable[t.Any]) -> None:
"""Consumes an iterable without doing anything with it."""
for _ in iterable:
pass
def clear_caches() -> None:
"""Jinja keeps internal caches for environments and lexers. These are
used so that Jinja doesn't have to recreate environments and lexers all
the time. Normally you don't have to care about that but if you are
measuring memory consumption you may want to clean the caches.
"""
from .environment import get_spontaneous_environment
from .lexer import _lexer_cache
get_spontaneous_environment.cache_clear()
_lexer_cache.clear()
def import_string(import_name: str, silent: bool = False) -> t.Any:
"""Imports an object based on a string. This is useful if you want to
use import paths as endpoints or something similar. An import path can
be specified either in dotted notation (``xml.sax.saxutils.escape``)
or with a colon as object delimiter (``xml.sax.saxutils:escape``).
If the `silent` is True the return value will be `None` if the import
fails.
:return: imported object
"""
try:
if ":" in import_name:
module, obj = import_name.split(":", 1)
elif "." in import_name:
module, _, obj = import_name.rpartition(".")
else:
return __import__(import_name)
return getattr(__import__(module, None, None, [obj]), obj)
except (ImportError, AttributeError):
if not silent:
raise
def open_if_exists(filename: str, mode: str = "rb") -> t.Optional[t.IO[t.Any]]:
"""Returns a file descriptor for the filename if that file exists,
otherwise ``None``.
"""
if not os.path.isfile(filename):
return None
return open(filename, mode)
def object_type_repr(obj: t.Any) -> str:
"""Returns the name of the object's type. For some recognized
singletons the name of the object is returned instead. (For
example for `None` and `Ellipsis`).
"""
if obj is None:
return "None"
elif obj is Ellipsis:
return "Ellipsis"
cls = type(obj)
if cls.__module__ == "builtins":
return f"{cls.__name__} object"
return f"{cls.__module__}.{cls.__name__} object"
def pformat(obj: t.Any) -> str:
"""Format an object using :func:`pprint.pformat`."""
from pprint import pformat
return pformat(obj)
_http_re = re.compile(
r"""
^
(
(https?://|www\.) # scheme or www
(([\w%-]+\.)+)? # subdomain
(
[a-z]{2,63} # basic tld
|
xn--[\w%]{2,59} # idna tld
)
|
([\w%-]{2,63}\.)+ # basic domain
(com|net|int|edu|gov|org|info|mil) # basic tld
|
(https?://) # scheme
(
(([\d]{1,3})(\.[\d]{1,3}){3}) # IPv4
|
(\[([\da-f]{0,4}:){2}([\da-f]{0,4}:?){1,6}]) # IPv6
)
)
(?::[\d]{1,5})? # port
(?:[/?#]\S*)? # path, query, and fragment
$
""",
re.IGNORECASE | re.VERBOSE,
)
_email_re = re.compile(r"^\S+@\w[\w.-]*\.\w+$")
def urlize(
text: str,
trim_url_limit: t.Optional[int] = None,
rel: t.Optional[str] = None,
target: t.Optional[str] = None,
extra_schemes: t.Optional[t.Iterable[str]] = None,
) -> str:
"""Convert URLs in text into clickable links.
This may not recognize links in some situations. Usually, a more
comprehensive formatter, such as a Markdown library, is a better
choice.
Works on ``http://``, ``https://``, ``www.``, ``mailto:``, and email
addresses. Links with trailing punctuation (periods, commas, closing
parentheses) and leading punctuation (opening parentheses) are
recognized excluding the punctuation. Email addresses that include
header fields are not recognized (for example,
``mailto:address@example.com?cc=copy@example.com``).
:param text: Original text containing URLs to link.
:param trim_url_limit: Shorten displayed URL values to this length.
:param target: Add the ``target`` attribute to links.
:param rel: Add the ``rel`` attribute to links.
:param extra_schemes: Recognize URLs that start with these schemes
in addition to the default behavior.
.. versionchanged:: 3.0
The ``extra_schemes`` parameter was added.
.. versionchanged:: 3.0
Generate ``https://`` links for URLs without a scheme.
.. versionchanged:: 3.0
The parsing rules were updated. Recognize email addresses with
or without the ``mailto:`` scheme. Validate IP addresses. Ignore
parentheses and brackets in more cases.
"""
if trim_url_limit is not None:
def trim_url(x: str) -> str:
if len(x) > trim_url_limit:
return f"{x[:trim_url_limit]}..."
return x
else:
def trim_url(x: str) -> str:
return x
words = re.split(r"(\s+)", str(markupsafe.escape(text)))
rel_attr = f' rel="{markupsafe.escape(rel)}"' if rel else ""
target_attr = f' target="{markupsafe.escape(target)}"' if target else ""
for i, word in enumerate(words):
head, middle, tail = "", word, ""
match = re.match(r"^([(<]|&lt;)+", middle)
if match:
head = match.group()
middle = middle[match.end() :]
# Unlike lead, which is anchored to the start of the string,
# need to check that the string ends with any of the characters
# before trying to match all of them, to avoid backtracking.
if middle.endswith((")", ">", ".", ",", "\n", "&gt;")):
match = re.search(r"([)>.,\n]|&gt;)+$", middle)
if match:
tail = match.group()
middle = middle[: match.start()]
# Prefer balancing parentheses in URLs instead of ignoring a
# trailing character.
for start_char, end_char in ("(", ")"), ("<", ">"), ("&lt;", "&gt;"):
start_count = middle.count(start_char)
if start_count <= middle.count(end_char):
# Balanced, or lighter on the left
continue
# Move as many as possible from the tail to balance
for _ in range(min(start_count, tail.count(end_char))):
end_index = tail.index(end_char) + len(end_char)
# Move anything in the tail before the end char too
middle += tail[:end_index]
tail = tail[end_index:]
if _http_re.match(middle):
if middle.startswith("https://") or middle.startswith("http://"):
middle = (
f'<a href="{middle}"{rel_attr}{target_attr}>{trim_url(middle)}</a>'
)
else:
middle = (
f'<a href="https://{middle}"{rel_attr}{target_attr}>'
f"{trim_url(middle)}</a>"
)
elif middle.startswith("mailto:") and _email_re.match(middle[7:]):
middle = f'<a href="{middle}">{middle[7:]}</a>'
elif (
"@" in middle
and not middle.startswith("www.")
# ignore values like `@a@b`
and not middle.startswith("@")
and ":" not in middle
and _email_re.match(middle)
):
middle = f'<a href="mailto:{middle}">{middle}</a>'
elif extra_schemes is not None:
for scheme in extra_schemes:
if middle != scheme and middle.startswith(scheme):
middle = f'<a href="{middle}"{rel_attr}{target_attr}>{middle}</a>'
words[i] = f"{head}{middle}{tail}"
return "".join(words)
def generate_lorem_ipsum(
n: int = 5, html: bool = True, min: int = 20, max: int = 100
) -> str:
"""Generate some lorem ipsum for the template."""
from .constants import LOREM_IPSUM_WORDS
words = LOREM_IPSUM_WORDS.split()
result = []
for _ in range(n):
next_capitalized = True
last_comma = last_fullstop = 0
word = None
last = None
p = []
# each paragraph contains out of 20 to 100 words.
for idx, _ in enumerate(range(randrange(min, max))):
while True:
word = choice(words)
if word != last:
last = word
break
if next_capitalized:
word = word.capitalize()
next_capitalized = False
# add commas
if idx - randrange(3, 8) > last_comma:
last_comma = idx
last_fullstop += 2
word += ","
# add end of sentences
if idx - randrange(10, 20) > last_fullstop:
last_comma = last_fullstop = idx
word += "."
next_capitalized = True
p.append(word)
# ensure that the paragraph ends with a dot.
p_str = " ".join(p)
if p_str.endswith(","):
p_str = p_str[:-1] + "."
elif not p_str.endswith("."):
p_str += "."
result.append(p_str)
if not html:
return "\n\n".join(result)
return markupsafe.Markup(
"\n".join(f"<p>{markupsafe.escape(x)}</p>" for x in result)
)
def url_quote(obj: t.Any, charset: str = "utf-8", for_qs: bool = False) -> str:
"""Quote a string for use in a URL using the given charset.
:param obj: String or bytes to quote. Other types are converted to
string then encoded to bytes using the given charset.
:param charset: Encode text to bytes using this charset.
:param for_qs: Quote "/" and use "+" for spaces.
"""
if not isinstance(obj, bytes):
if not isinstance(obj, str):
obj = str(obj)
obj = obj.encode(charset)
safe = b"" if for_qs else b"/"
rv = quote_from_bytes(obj, safe)
if for_qs:
rv = rv.replace("%20", "+")
return rv
@abc.MutableMapping.register
class LRUCache:
"""A simple LRU Cache implementation."""
# this is fast for small capacities (something below 1000) but doesn't
# scale. But as long as it's only used as storage for templates this
# won't do any harm.
def __init__(self, capacity: int) -> None:
self.capacity = capacity
self._mapping: t.Dict[t.Any, t.Any] = {}
self._queue: te.Deque[t.Any] = deque()
self._postinit()
def _postinit(self) -> None:
# alias all queue methods for faster lookup
self._popleft = self._queue.popleft
self._pop = self._queue.pop
self._remove = self._queue.remove
self._wlock = Lock()
self._append = self._queue.append
def __getstate__(self) -> t.Mapping[str, t.Any]:
return {
"capacity": self.capacity,
"_mapping": self._mapping,
"_queue": self._queue,
}
def __setstate__(self, d: t.Mapping[str, t.Any]) -> None:
self.__dict__.update(d)
self._postinit()
def __getnewargs__(self) -> t.Tuple[t.Any, ...]:
return (self.capacity,)
def copy(self) -> "te.Self":
"""Return a shallow copy of the instance."""
rv = self.__class__(self.capacity)
rv._mapping.update(self._mapping)
rv._queue.extend(self._queue)
return rv
def get(self, key: t.Any, default: t.Any = None) -> t.Any:
"""Return an item from the cache dict or `default`"""
try:
return self[key]
except KeyError:
return default
def setdefault(self, key: t.Any, default: t.Any = None) -> t.Any:
"""Set `default` if the key is not in the cache otherwise
leave unchanged. Return the value of this key.
"""
try:
return self[key]
except KeyError:
self[key] = default
return default
def clear(self) -> None:
"""Clear the cache."""
with self._wlock:
self._mapping.clear()
self._queue.clear()
def __contains__(self, key: t.Any) -> bool:
"""Check if a key exists in this cache."""
return key in self._mapping
def __len__(self) -> int:
"""Return the current size of the cache."""
return len(self._mapping)
def __repr__(self) -> str:
return f"<{type(self).__name__} {self._mapping!r}>"
def __getitem__(self, key: t.Any) -> t.Any:
"""Get an item from the cache. Moves the item up so that it has the
highest priority then.
Raise a `KeyError` if it does not exist.
"""
with self._wlock:
rv = self._mapping[key]
if self._queue[-1] != key:
try:
self._remove(key)
except ValueError:
# if something removed the key from the container
# when we read, ignore the ValueError that we would
# get otherwise.
pass
self._append(key)
return rv
def __setitem__(self, key: t.Any, value: t.Any) -> None:
"""Sets the value for an item. Moves the item up so that it
has the highest priority then.
"""
with self._wlock:
if key in self._mapping:
self._remove(key)
elif len(self._mapping) == self.capacity:
del self._mapping[self._popleft()]
self._append(key)
self._mapping[key] = value
def __delitem__(self, key: t.Any) -> None:
"""Remove an item from the cache dict.
Raise a `KeyError` if it does not exist.
"""
with self._wlock:
del self._mapping[key]
try:
self._remove(key)
except ValueError:
pass
def items(self) -> t.Iterable[t.Tuple[t.Any, t.Any]]:
"""Return a list of items."""
result = [(key, self._mapping[key]) for key in list(self._queue)]
result.reverse()
return result
def values(self) -> t.Iterable[t.Any]:
"""Return a list of all values."""
return [x[1] for x in self.items()]
def keys(self) -> t.Iterable[t.Any]:
"""Return a list of all keys ordered by most recent usage."""
return list(self)
def __iter__(self) -> t.Iterator[t.Any]:
return reversed(tuple(self._queue))
def __reversed__(self) -> t.Iterator[t.Any]:
"""Iterate over the keys in the cache dict, oldest items
coming first.
"""
return iter(tuple(self._queue))
__copy__ = copy
def select_autoescape(
enabled_extensions: t.Collection[str] = ("html", "htm", "xml"),
disabled_extensions: t.Collection[str] = (),
default_for_string: bool = True,
default: bool = False,
) -> t.Callable[[t.Optional[str]], bool]:
"""Intelligently sets the initial value of autoescaping based on the
filename of the template. This is the recommended way to configure
autoescaping if you do not want to write a custom function yourself.
If you want to enable it for all templates created from strings or
for all templates with `.html` and `.xml` extensions::
from jinja2 import Environment, select_autoescape
env = Environment(autoescape=select_autoescape(
enabled_extensions=('html', 'xml'),
default_for_string=True,
))
Example configuration to turn it on at all times except if the template
ends with `.txt`::
from jinja2 import Environment, select_autoescape
env = Environment(autoescape=select_autoescape(
disabled_extensions=('txt',),
default_for_string=True,
default=True,
))
The `enabled_extensions` is an iterable of all the extensions that
autoescaping should be enabled for. Likewise `disabled_extensions` is
a list of all templates it should be disabled for. If a template is
loaded from a string then the default from `default_for_string` is used.
If nothing matches then the initial value of autoescaping is set to the
value of `default`.
For security reasons this function operates case insensitive.
.. versionadded:: 2.9
"""
enabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in enabled_extensions)
disabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in disabled_extensions)
def autoescape(template_name: t.Optional[str]) -> bool:
if template_name is None:
return default_for_string
template_name = template_name.lower()
if template_name.endswith(enabled_patterns):
return True
if template_name.endswith(disabled_patterns):
return False
return default
return autoescape
def htmlsafe_json_dumps(
obj: t.Any, dumps: t.Optional[t.Callable[..., str]] = None, **kwargs: t.Any
) -> markupsafe.Markup:
"""Serialize an object to a string of JSON with :func:`json.dumps`,
then replace HTML-unsafe characters with Unicode escapes and mark
the result safe with :class:`~markupsafe.Markup`.
This is available in templates as the ``|tojson`` filter.
The following characters are escaped: ``<``, ``>``, ``&``, ``'``.
The returned string is safe to render in HTML documents and
``<script>`` tags. The exception is in HTML attributes that are
double quoted; either use single quotes or the ``|forceescape``
filter.
:param obj: The object to serialize to JSON.
:param dumps: The ``dumps`` function to use. Defaults to
``env.policies["json.dumps_function"]``, which defaults to
:func:`json.dumps`.
:param kwargs: Extra arguments to pass to ``dumps``. Merged onto
``env.policies["json.dumps_kwargs"]``.
.. versionchanged:: 3.0
The ``dumper`` parameter is renamed to ``dumps``.
.. versionadded:: 2.9
"""
if dumps is None:
dumps = json.dumps
return markupsafe.Markup(
dumps(obj, **kwargs)
.replace("<", "\\u003c")
.replace(">", "\\u003e")
.replace("&", "\\u0026")
.replace("'", "\\u0027")
)
class Cycler:
"""Cycle through values by yield them one at a time, then restarting
once the end is reached. Available as ``cycler`` in templates.
Similar to ``loop.cycle``, but can be used outside loops or across
multiple loops. For example, render a list of folders and files in a
list, alternating giving them "odd" and "even" classes.
.. code-block:: html+jinja
{% set row_class = cycler("odd", "even") %}
<ul class="browser">
{% for folder in folders %}
<li class="folder {{ row_class.next() }}">{{ folder }}
{% endfor %}
{% for file in files %}
<li class="file {{ row_class.next() }}">{{ file }}
{% endfor %}
</ul>
:param items: Each positional argument will be yielded in the order
given for each cycle.
.. versionadded:: 2.1
"""
def __init__(self, *items: t.Any) -> None:
if not items:
raise RuntimeError("at least one item has to be provided")
self.items = items
self.pos = 0
def reset(self) -> None:
"""Resets the current item to the first item."""
self.pos = 0
@property
def current(self) -> t.Any:
"""Return the current item. Equivalent to the item that will be
returned next time :meth:`next` is called.
"""
return self.items[self.pos]
def next(self) -> t.Any:
"""Return the current item, then advance :attr:`current` to the
next item.
"""
rv = self.current
self.pos = (self.pos + 1) % len(self.items)
return rv
__next__ = next
class Joiner:
"""A joining helper for templates."""
def __init__(self, sep: str = ", ") -> None:
self.sep = sep
self.used = False
def __call__(self) -> str:
if not self.used:
self.used = True
return ""
return self.sep
class Namespace:
"""A namespace object that can hold arbitrary attributes. It may be
initialized from a dictionary or with keyword arguments."""
def __init__(*args: t.Any, **kwargs: t.Any) -> None: # noqa: B902
self, args = args[0], args[1:]
self.__attrs = dict(*args, **kwargs)
def __getattribute__(self, name: str) -> t.Any:
# __class__ is needed for the awaitable check in async mode
if name in {"_Namespace__attrs", "__class__"}:
return object.__getattribute__(self, name)
try:
return self.__attrs[name]
except KeyError:
raise AttributeError(name) from None
def __setitem__(self, name: str, value: t.Any) -> None:
self.__attrs[name] = value
def __repr__(self) -> str:
return f"<Namespace {self.__attrs!r}>"