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# -*- coding: utf-8 -*-
"""
Nginx组件实现 - Python版本
包含Http、Server、Location、Upstream等具体组件
"""
import re
from typing import List, Optional, Dict, Union
from dataclasses import dataclass, field
# 导入基础类
from .nginx_base import Directive, Block, IDirective, IBlock, _Trans, trans_
@dataclass
class Http(IDirective, IBlock, _Trans):
"""Http块组件"""
servers: List["Server"] = field(default_factory=list)
directives: List[IDirective] = field(default_factory=list)
comment: List[str] = field(default_factory=list)
inline_comment: List[str] = field(default_factory=list)
_parent: Optional['IDirective'] = field(default=None, repr=False, compare=False)
line: int = 0
def get_parameters(self) -> List[str]:
return []
def get_block(self) -> Optional['IBlock']:
return self
def get_name(self) -> str:
return "http"
def get_comment(self) -> List[str]:
return self.comment
def set_comment(self, comment: List[str]):
return self.comment
def get_line(self) -> int:
return self.line
def set_parent(self, parent: Optional['IDirective']):
self._parent = parent
def get_parent(self) -> Optional['IDirective']:
return self._parent
def set_inline_comment(self, comment: str):
self.inline_comment.append(comment)
def get_inline_comment(self) -> List[str]:
return self.inline_comment
def get_directives(self) -> List[IDirective]:
return self.directives
def get_code_block(self) -> str:
return ""
def find_directives(self, directive_name: str, include: bool = False, sub_block: bool = False) -> List[IDirective]:
if directive_name == "server":
return self.servers
return super().find_directives(directive_name, include, sub_block)
@classmethod
def from_directive(cls, directive: Union[IDirective, Directive]) -> 'Http':
if directive.__class__ is cls:
return trans_(directive, cls)
if directive.get_block() is None:
raise ValueError("http 块为空")
servers = []
_directives = []
for directive in directive.get_block().get_directives():
if directive.__class__ is Server:
servers.append(directive)
if directive.get_name() == "include":
if getattr(directive, 'configs', []) and callable(getattr(directive, 'find_directives', None)):
servers.extend(getattr(directive, 'find_directives')("server", include=True, sub_block=False))
_directives.append(directive)
return cls(
servers=servers,
line=directive.get_line(),
directives=_directives,
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
)
@dataclass
class Server(Directive, _Trans):
"""Server块组件"""
@classmethod
def from_directive(cls, directive: Union[IDirective, Directive]) -> 'Server':
if directive.__class__ is cls:
return trans_(directive, cls)
if directive.get_block() is None:
raise ValueError("Server块组件需要有块内容")
return cls(
name="server",
parameters=[],
line=directive.get_line(),
block=directive.get_block(),
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
)
def top_find_directives(self, directive_name: str) -> List[IDirective]:
"""在 server 的顶块中查找"""
directives = self.get_block().get_directives()
return [directive for directive in directives if directive.get_name() == directive_name]
# 只在server块内部查询，不会返回子块中的指令如：location 块内信息，
# param 将顺序依次匹配
def top_find_directives_with_param(self, directive_name: str, *params: Union[str, re.Pattern]):
directives = self.get_block().get_directives()
res = []
params_match = lambda x, y: x == y if not isinstance(x, re.Pattern) else re.match(x, y)
for d in directives:
if d.get_name() == directive_name:
if len(params) == 0:
res.append(d)
else:
d_params = d.get_parameters()
min_len = min(len(params), len(d_params))
if all([params_match(params[i], d_params[i]) for i in range(min_len)]):
res.append(d)
return res
@dataclass
class Location(Directive, _Trans):
"""Location块组件"""
modifier: str = ""
match: str = ""
def get_name(self) -> str:
return "location"
def top_find_directives(self, directive_name: str) -> List[IDirective]:
"""在 server 的顶块中查找"""
directives = self.get_block().get_directives()
return [directive for directive in directives if directive.get_name() == directive_name]
# 只在server块内部查询，不会返回子块中的指令如：location 块内信息，
# param 将顺序依次匹配
def top_find_directives_with_param(self, directive_name: str, *params: str):
directives = self.get_block().get_directives()
res = []
for d in directives:
if d.get_name() == directive_name:
if len(params) == 0:
res.append(d)
else:
d_params = d.get_parameters()
min_len = min(len(params), len(d_params))
if all([d_params[i] == params[i] for i in range(min_len)]):
res.append(d)
return res
def top_find_directives_like_param(self, directive_name: str, param: str):
directives = self.get_block().get_directives()
res = []
for d in directives:
if d.get_name() == directive_name:
if not param:
res.append(d)
else:
d_params = d.get_parameters()
for d_param in d_params:
if param in d_param:
res.append(d)
return res
@classmethod
def from_directive(cls, directive: Union[IDirective, Directive]) -> 'Location':
if directive.__class__ is cls:
return trans_(directive, cls)
param = directive.get_parameters()
match, modifier = "", ""
if len(param) == 1:
match = param[0]
elif len(param) == 2:
modifier, match = param
else:
raise ValueError("location指令必须有1-2个参数")
return cls(
name="location",
parameters=param,
line=directive.get_line(),
block=directive.get_block(),
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
modifier=modifier,
match=match,
)
@dataclass
class Upstream(IDirective, IBlock, _Trans):
"""Upstream块组件"""
upstream_name: str = ""
servers: List['UpstreamServer'] = field(default_factory=list)
directives: List[IDirective] = field(default_factory=list)
comment: List[str] = field(default_factory=list)
inline_comment: List[str] = field(default_factory=list)
_parent: Optional['IDirective'] = field(default=None, repr=False, compare=False)
line: int = 0
def get_name(self) -> str:
return "upstream"
def get_parameters(self) -> List[str]:
return [self.upstream_name]
def get_block(self) -> Optional['IBlock']:
return self
def get_comment(self) -> List[str]:
return self.comment
def set_comment(self, comment: List[str]):
self.comment = comment
def get_line(self) -> int:
return self.line
def set_parent(self, parent: Optional['IDirective']):
self._parent = parent
def get_parent(self) -> Optional['IDirective']:
return self._parent
def get_inline_comment(self) -> List[str]:
return self.inline_comment
def set_inline_comment(self, comment: str):
self.inline_comment.append(comment)
def get_directives(self) -> List[IDirective]:
res: List[IDirective] = self.servers.copy()
for sub_dir in self.directives:
res.append(sub_dir)
return res
def get_code_block(self) -> str:
return ""
def find_directives(self, directive_name: str, include: bool = False, sub_block: bool = False) -> List[IDirective]:
return super().find_directives(directive_name, include, sub_block)
@classmethod
def from_directive(cls, directive: Union[IDirective, Directive]) -> 'Upstream':
if type(directive) is cls:
return trans_(directive, cls)
parameters = directive.get_parameters()
if len(parameters) != 1:
raise ValueError("upstream指令参数数量错误")
name = parameters[0]
if directive.get_block() is None:
raise ValueError("upstream指令缺少块")
res = cls(
line=directive.get_line(),
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
upstream_name=name,
)
servers = []
directives = []
for sun_dir in directive.get_block().get_directives():
if sun_dir.get_name() == "server":
ups = UpstreamServer.from_directive(sun_dir)
ups.set_parent(res)
servers.append(ups)
else:
directives.append(sun_dir)
res.servers = servers
res.directives = directives
return res
@dataclass
class UpstreamServer(IDirective, _Trans):
"""Upstream Server组件"""
address: str = ""
flags: List[str] = field(default_factory=list)
comment: List[str] = field(default_factory=list)
inline_comment: List[str] = field(default_factory=list)
parameters: Dict[str, str] = field(default_factory=dict)
_parent: Optional['IDirective'] = field(default=None, repr=False, compare=False)
line: int = 0
def get_name(self) -> str:
return "server"
def get_parameters(self) -> List[str]:
return self.to_directive().parameters
def get_block(self) -> Optional['IBlock']:
return None
def get_comment(self) -> List[str]:
return self.comment
def set_comment(self, comment: List[str]):
self.comment = comment
def get_line(self) -> int:
return self.line
def set_parent(self, parent: Optional['IDirective']):
self._parent = parent
def get_parent(self) -> Optional['IDirective']:
return self._parent
def get_inline_comment(self) -> List[str]:
return self.inline_comment
def set_inline_comment(self, comment: str):
self.inline_comment.append(comment)
@classmethod
def from_directive(cls, directive: Union[Directive, IDirective]) -> 'UpstreamServer':
if cls is directive.__class__:
return trans_(directive, cls)
dpt = directive.get_parameters()
if len(dpt) < 1:
raise ValueError("upstream 中的server命令至少有一个参数且为地址信息")
parameters, flags = {}, []
if len(dpt) > 1:
parameters = dict(p.split("=")[:2] for p in dpt[1:] if "=" in p)
flags = [p for p in dpt[1:] if "=" not in p]
address = dpt[0]
return cls(
parameters=parameters,
line=directive.get_line(),
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
flags=flags,
address=address,
)
def to_directive(self) -> Directive:
parameters = [self.address]
for k, v in self.parameters.items():
parameters.append(f"{k}={v}")
for flag in self.flags:
parameters.append(flag)
return Directive(
name="server",
parameters=parameters,
line=self.get_line(),
block=None,
comment=self.get_comment(),
inline_comment=self.get_inline_comment(),
_parent=self.get_parent(),
)
def get_server_address(self) -> str:
"""获取服务器地址"""
return self.address
@dataclass
class LuaBlock(IDirective, IBlock, _Trans):
"""Lua代码块组件"""
directives: List[IDirective] = field(default_factory=list)
name: str = ""
comment: List[str] = field(default_factory=list)
inline_comment: List[str] = field(default_factory=list)
lua_code: str = ""
_parent: Optional['IDirective'] = field(default=None, repr=False, compare=False)
line: int = 0
parameters: List[str] = field(default_factory=list)
def get_name(self) -> str:
return self.name
def get_parameters(self) -> List[str]:
return self.parameters
def get_block(self) -> Optional['IBlock']:
return self
def get_comment(self) -> List[str]:
return self.comment
def set_comment(self, comment: List[str]):
self.comment = comment
def get_line(self) -> int:
return self.line
def set_parent(self, parent: Optional['IDirective']):
self._parent = parent
def get_parent(self) -> Optional['IDirective']:
return self._parent
def get_inline_comment(self) -> List[str]:
return self.inline_comment
def set_inline_comment(self, comment: str):
self.inline_comment.append(comment)
def get_directives(self) -> List[IDirective]:
return self.directives
def get_code_block(self) -> str:
return self.lua_code
def find_directives(self, directive_name: str, include: bool = False, sub_block: bool = False) -> List[IDirective]:
return []
@classmethod
def from_directive(cls, directive: Union[IDirective, Directive]) -> 'LuaBlock':
if directive.__class__ is LuaBlock:
return trans_(directive, cls)
if directive.get_block() is None:
raise ValueError("Directive does not have a block")
return cls(
line=directive.get_line(),
comment=directive.get_comment(),
inline_comment=directive.get_inline_comment(),
name=directive.get_name(),
parameters=directive.get_parameters(),
lua_code=directive.get_block().get_code_block(),
)
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