Commit | Line | Data |
---|---|---|
1864be32 | 1 | import inspect, math |
2a5a8ce7 | 2 | from . import req, dispatch, session, form, resp, proto |
b409a338 FT |
3 | |
4 | def wsgiwrap(callable): | |
5 | def wrapper(env, startreq): | |
7450e2fc | 6 | return dispatch.handleenv(env, startreq, callable) |
0f18b774 | 7 | wrapper.__wrapped__ = callable |
b409a338 | 8 | return wrapper |
d9979128 | 9 | |
c2fc67dc FT |
10 | def stringwrap(charset): |
11 | def dec(callable): | |
12 | def wrapper(*args, **kwargs): | |
13 | bk = callable(*args, **kwargs) | |
14 | for string in bk: | |
15 | yield string.encode(charset) | |
16 | return wrapper | |
17 | return dec | |
18 | ||
bbdebbab | 19 | def formparams(callable): |
f639ac81 | 20 | spec = inspect.getargspec(callable) |
bbdebbab FT |
21 | def wrapper(req): |
22 | data = form.formdata(req) | |
bbdebbab FT |
23 | args = dict(data.items()) |
24 | args["req"] = req | |
25 | if not spec.keywords: | |
26 | for arg in list(args): | |
27 | if arg not in spec.args: | |
28 | del args[arg] | |
babf3e21 | 29 | for i in range(len(spec.args) - (len(spec.defaults) if spec.defaults else 0)): |
5a071401 FT |
30 | if spec.args[i] not in args: |
31 | raise resp.httperror(400, "Missing parameter", ("The query parameter `", resp.h.code(spec.args[i]), "' is required but not supplied.")) | |
bbdebbab | 32 | return callable(**args) |
0f18b774 | 33 | wrapper.__wrapped__ = callable |
bbdebbab FT |
34 | return wrapper |
35 | ||
612eb9f5 FT |
36 | class funplex(object): |
37 | def __init__(self, *funs, **nfuns): | |
38 | self.dir = {} | |
39 | self.dir.update(((self.unwrap(fun).__name__, fun) for fun in funs)) | |
40 | self.dir.update(nfuns) | |
41 | ||
42 | @staticmethod | |
24e514f0 FT |
43 | def unwrap(fun): |
44 | while hasattr(fun, "__wrapped__"): | |
45 | fun = fun.__wrapped__ | |
46 | return fun | |
612eb9f5 FT |
47 | |
48 | def __call__(self, req): | |
525d7938 FT |
49 | if req.pathinfo == "": |
50 | raise resp.redirect(req.uriname + "/") | |
51 | if req.pathinfo[:1] != "/": | |
52 | raise resp.notfound() | |
53 | p = req.pathinfo[1:] | |
54 | if p == "": | |
55 | p = "__index__" | |
56 | bi = 1 | |
57 | else: | |
58 | p = p.partition("/")[0] | |
59 | bi = len(p) + 1 | |
612eb9f5 FT |
60 | if p in self.dir: |
61 | return self.dir[p](req.shift(bi)) | |
525d7938 | 62 | raise resp.notfound() |
612eb9f5 FT |
63 | |
64 | def add(self, fun): | |
65 | self.dir[self.unwrap(fun).__name__] = fun | |
66 | return fun | |
67 | ||
68 | def name(self, name): | |
69 | def dec(fun): | |
70 | self.dir[name] = fun | |
71 | return fun | |
72 | return dec | |
525d7938 | 73 | |
9bc70dab | 74 | def persession(data=None): |
d9979128 FT |
75 | def dec(callable): |
76 | def wrapper(req): | |
77 | sess = session.get(req) | |
78 | if callable not in sess: | |
79 | if data is None: | |
80 | sess[callable] = callable() | |
81 | else: | |
82 | if data not in sess: | |
83 | sess[data] = data() | |
84 | sess[callable] = callable(data) | |
85 | return sess[callable].handle(req) | |
0f18b774 | 86 | wrapper.__wrapped__ = callable |
d9979128 FT |
87 | return wrapper |
88 | return dec | |
d1f70c6c | 89 | |
77dd732a FT |
90 | class preiter(object): |
91 | __slots__ = ["bk", "bki", "_next"] | |
92 | end = object() | |
93 | def __init__(self, real): | |
94 | self.bk = real | |
95 | self.bki = iter(real) | |
96 | self._next = None | |
a7a09080 | 97 | self.__next__() |
77dd732a FT |
98 | |
99 | def __iter__(self): | |
100 | return self | |
101 | ||
a7a09080 | 102 | def __next__(self): |
77dd732a FT |
103 | if self._next is self.end: |
104 | raise StopIteration() | |
105 | ret = self._next | |
106 | try: | |
107 | self._next = next(self.bki) | |
108 | except StopIteration: | |
109 | self._next = self.end | |
110 | return ret | |
111 | ||
112 | def close(self): | |
113 | if hasattr(self.bk, "close"): | |
114 | self.bk.close() | |
115 | ||
116 | def pregen(callable): | |
117 | def wrapper(*args, **kwargs): | |
118 | return preiter(callable(*args, **kwargs)) | |
0f18b774 | 119 | wrapper.__wrapped__ = callable |
77dd732a FT |
120 | return wrapper |
121 | ||
d1f70c6c FT |
122 | class sessiondata(object): |
123 | @classmethod | |
9bc70dab | 124 | def get(cls, req, create=True): |
d1f70c6c FT |
125 | sess = cls.sessdb().get(req) |
126 | with sess.lock: | |
127 | try: | |
128 | return sess[cls] | |
129 | except KeyError: | |
8f911ff6 FT |
130 | if not create: |
131 | return None | |
5b35322c | 132 | ret = cls(req, sess) |
d1f70c6c FT |
133 | sess[cls] = ret |
134 | return ret | |
135 | ||
136 | @classmethod | |
137 | def sessdb(cls): | |
1f61bf31 | 138 | return session.default.val |
d1f70c6c | 139 | |
f13b8f5a FT |
140 | class autodirty(sessiondata): |
141 | @classmethod | |
142 | def get(cls, req): | |
d13a1a57 | 143 | ret = super().get(req) |
f13b8f5a FT |
144 | if "_is_dirty" not in ret.__dict__: |
145 | ret.__dict__["_is_dirty"] = False | |
617b21df | 146 | return ret |
f13b8f5a | 147 | |
d1f70c6c | 148 | def sessfrozen(self): |
f13b8f5a | 149 | self.__dict__["_is_dirty"] = False |
d1f70c6c FT |
150 | |
151 | def sessdirty(self): | |
f13b8f5a | 152 | return self._is_dirty |
d1f70c6c FT |
153 | |
154 | def __setattr__(self, name, value): | |
a4ad119b | 155 | super().__setattr__(name, value) |
f13b8f5a FT |
156 | if "_is_dirty" in self.__dict__: |
157 | self.__dict__["_is_dirty"] = True | |
d1f70c6c FT |
158 | |
159 | def __delattr__(self, name): | |
d13a1a57 | 160 | super().__delattr__(name, value) |
f13b8f5a FT |
161 | if "_is_dirty" in self.__dict__: |
162 | self.__dict__["_is_dirty"] = True | |
3b9bc700 FT |
163 | |
164 | class manudirty(object): | |
165 | def __init__(self, *args, **kwargs): | |
d13a1a57 | 166 | super().__init__(*args, **kwargs) |
3b9bc700 FT |
167 | self.__dirty = False |
168 | ||
169 | def sessfrozen(self): | |
170 | self.__dirty = False | |
171 | ||
172 | def sessdirty(self): | |
173 | return self.__dirty | |
174 | ||
175 | def dirty(self): | |
176 | self.__dirty = True | |
df5f7868 FT |
177 | |
178 | class specslot(object): | |
179 | __slots__ = ["nm", "idx", "dirty"] | |
180 | unbound = object() | |
181 | ||
182 | def __init__(self, nm, idx, dirty): | |
183 | self.nm = nm | |
184 | self.idx = idx | |
185 | self.dirty = dirty | |
186 | ||
187 | @staticmethod | |
188 | def slist(ins): | |
189 | # Avoid calling __getattribute__ | |
190 | return specdirty.__sslots__.__get__(ins, type(ins)) | |
191 | ||
192 | def __get__(self, ins, cls): | |
193 | val = self.slist(ins)[self.idx] | |
194 | if val is specslot.unbound: | |
195 | raise AttributeError("specslot %r is unbound" % self.nm) | |
196 | return val | |
197 | ||
198 | def __set__(self, ins, val): | |
199 | self.slist(ins)[self.idx] = val | |
200 | if self.dirty: | |
201 | ins.dirty() | |
202 | ||
203 | def __delete__(self, ins): | |
204 | self.slist(ins)[self.idx] = specslot.unbound | |
205 | ins.dirty() | |
206 | ||
207 | class specclass(type): | |
208 | def __init__(self, name, bases, tdict): | |
f605aaf2 | 209 | super().__init__(name, bases, tdict) |
df5f7868 FT |
210 | sslots = set() |
211 | dslots = set() | |
212 | for cls in self.__mro__: | |
213 | css = cls.__dict__.get("__saveslots__", ()) | |
214 | sslots.update(css) | |
215 | dslots.update(cls.__dict__.get("__dirtyslots__", css)) | |
216 | self.__sslots_l__ = list(sslots) | |
217 | self.__sslots_a__ = list(sslots | dslots) | |
218 | for i, slot in enumerate(self.__sslots_a__): | |
219 | setattr(self, slot, specslot(slot, i, slot in dslots)) | |
220 | ||
f605aaf2 | 221 | class specdirty(sessiondata, metaclass=specclass): |
df5f7868 FT |
222 | __slots__ = ["session", "__sslots__", "_is_dirty"] |
223 | ||
224 | def __specinit__(self): | |
225 | pass | |
226 | ||
227 | @staticmethod | |
228 | def __new__(cls, req, sess): | |
f605aaf2 | 229 | self = super().__new__(cls) |
df5f7868 FT |
230 | self.session = sess |
231 | self.__sslots__ = [specslot.unbound] * len(cls.__sslots_a__) | |
232 | self.__specinit__() | |
233 | self._is_dirty = False | |
234 | return self | |
235 | ||
236 | def __getnewargs__(self): | |
237 | return (None, self.session) | |
238 | ||
239 | def dirty(self): | |
240 | self._is_dirty = True | |
241 | ||
242 | def sessfrozen(self): | |
243 | self._is_dirty = False | |
244 | ||
245 | def sessdirty(self): | |
246 | return self._is_dirty | |
247 | ||
248 | def __getstate__(self): | |
249 | ret = {} | |
250 | for nm, val in zip(type(self).__sslots_a__, specslot.slist(self)): | |
251 | if val is specslot.unbound: | |
252 | ret[nm] = False, None | |
253 | else: | |
254 | ret[nm] = True, val | |
255 | return ret | |
256 | ||
257 | def __setstate__(self, st): | |
258 | ss = specslot.slist(self) | |
259 | for i, nm in enumerate(type(self).__sslots_a__): | |
260 | bound, val = st.pop(nm, (False, None)) | |
df5f7868 FT |
261 | if not bound: |
262 | ss[i] = specslot.unbound | |
263 | else: | |
264 | ss[i] = val | |
1864be32 FT |
265 | |
266 | def datecheck(req, mtime): | |
267 | if "If-Modified-Since" in req.ihead: | |
268 | rtime = proto.phttpdate(req.ihead["If-Modified-Since"]) | |
269 | if rtime >= math.floor(mtime): | |
270 | raise resp.unmodified() | |
271 | req.ohead["Last-Modified"] = proto.httpdate(mtime) |