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1 | // |
2 | // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com) | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | // | |
7 | // Official repository: https://github.com/boostorg/beast | |
8 | // | |
9 | ||
10 | #ifndef BOOST_BEAST_HTTP_IMPL_VERB_IPP | |
11 | #define BOOST_BEAST_HTTP_IMPL_VERB_IPP | |
12 | ||
13 | #include <boost/beast/core/detail/config.hpp> | |
14 | #include <boost/throw_exception.hpp> | |
15 | #include <stdexcept> | |
16 | ||
17 | namespace boost { | |
18 | namespace beast { | |
19 | namespace http { | |
20 | ||
21 | namespace detail { | |
22 | ||
23 | template<class = void> | |
24 | inline | |
25 | string_view | |
26 | verb_to_string(verb v) | |
27 | { | |
28 | switch(v) | |
29 | { | |
30 | case verb::delete_: return "DELETE"; | |
31 | case verb::get: return "GET"; | |
32 | case verb::head: return "HEAD"; | |
33 | case verb::post: return "POST"; | |
34 | case verb::put: return "PUT"; | |
35 | case verb::connect: return "CONNECT"; | |
36 | case verb::options: return "OPTIONS"; | |
37 | case verb::trace: return "TRACE"; | |
38 | ||
39 | case verb::copy: return "COPY"; | |
40 | case verb::lock: return "LOCK"; | |
41 | case verb::mkcol: return "MKCOL"; | |
42 | case verb::move: return "MOVE"; | |
43 | case verb::propfind: return "PROPFIND"; | |
44 | case verb::proppatch: return "PROPPATCH"; | |
45 | case verb::search: return "SEARCH"; | |
46 | case verb::unlock: return "UNLOCK"; | |
47 | case verb::bind: return "BIND"; | |
48 | case verb::rebind: return "REBIND"; | |
49 | case verb::unbind: return "UNBIND"; | |
50 | case verb::acl: return "ACL"; | |
51 | ||
52 | case verb::report: return "REPORT"; | |
53 | case verb::mkactivity: return "MKACTIVITY"; | |
54 | case verb::checkout: return "CHECKOUT"; | |
55 | case verb::merge: return "MERGE"; | |
56 | ||
57 | case verb::msearch: return "M-SEARCH"; | |
58 | case verb::notify: return "NOTIFY"; | |
59 | case verb::subscribe: return "SUBSCRIBE"; | |
60 | case verb::unsubscribe: return "UNSUBSCRIBE"; | |
61 | ||
62 | case verb::patch: return "PATCH"; | |
63 | case verb::purge: return "PURGE"; | |
64 | ||
65 | case verb::mkcalendar: return "MKCALENDAR"; | |
66 | ||
67 | case verb::link: return "LINK"; | |
68 | case verb::unlink: return "UNLINK"; | |
69 | ||
70 | case verb::unknown: | |
71 | return "<unknown>"; | |
72 | } | |
73 | ||
74 | BOOST_THROW_EXCEPTION(std::invalid_argument{"unknown verb"}); | |
11fdf7f2 TL |
75 | |
76 | // Help some compilers which don't know the next line is | |
77 | // unreachable, otherwise spurious warnings are generated. | |
78 | return "<unknown>"; | |
b32b8144 FG |
79 | } |
80 | ||
81 | template<class = void> | |
82 | verb | |
83 | string_to_verb(string_view v) | |
84 | { | |
85 | /* | |
86 | ACL | |
87 | BIND | |
88 | CHECKOUT | |
89 | CONNECT | |
90 | COPY | |
91 | DELETE | |
92 | GET | |
93 | HEAD | |
94 | LINK | |
95 | LOCK | |
96 | M-SEARCH | |
97 | MERGE | |
98 | MKACTIVITY | |
99 | MKCALENDAR | |
100 | MKCOL | |
101 | MOVE | |
102 | NOTIFY | |
103 | OPTIONS | |
104 | PATCH | |
105 | POST | |
106 | PROPFIND | |
107 | PROPPATCH | |
108 | PURGE | |
109 | PUT | |
110 | REBIND | |
111 | REPORT | |
112 | SEARCH | |
113 | SUBSCRIBE | |
114 | TRACE | |
115 | UNBIND | |
116 | UNLINK | |
117 | UNLOCK | |
118 | UNSUBSCRIBE | |
119 | */ | |
120 | if(v.size() < 3) | |
121 | return verb::unknown; | |
122 | // s must be null terminated | |
123 | auto const eq = | |
124 | [](string_view sv, char const* s) | |
125 | { | |
126 | auto p = sv.data(); | |
127 | for(;;) | |
128 | { | |
129 | if(*s != *p) | |
130 | return false; | |
131 | ++s; | |
132 | ++p; | |
133 | if(! *s) | |
134 | return p == sv.end(); | |
135 | } | |
136 | }; | |
137 | auto c = v[0]; | |
138 | v.remove_prefix(1); | |
139 | switch(c) | |
140 | { | |
141 | case 'A': | |
142 | if(v == "CL") | |
143 | return verb::acl; | |
144 | break; | |
145 | ||
146 | case 'B': | |
147 | if(v == "IND") | |
148 | return verb::bind; | |
149 | break; | |
150 | ||
151 | case 'C': | |
152 | c = v[0]; | |
153 | v.remove_prefix(1); | |
154 | switch(c) | |
155 | { | |
156 | case 'H': | |
157 | if(eq(v, "ECKOUT")) | |
158 | return verb::checkout; | |
159 | break; | |
160 | ||
161 | case 'O': | |
162 | if(eq(v, "NNECT")) | |
163 | return verb::connect; | |
164 | if(eq(v, "PY")) | |
165 | return verb::copy; | |
11fdf7f2 | 166 | BOOST_FALLTHROUGH; |
b32b8144 FG |
167 | |
168 | default: | |
169 | break; | |
170 | } | |
171 | break; | |
172 | ||
173 | case 'D': | |
174 | if(eq(v, "ELETE")) | |
175 | return verb::delete_; | |
176 | break; | |
177 | ||
178 | case 'G': | |
179 | if(eq(v, "ET")) | |
180 | return verb::get; | |
181 | break; | |
182 | ||
183 | case 'H': | |
184 | if(eq(v, "EAD")) | |
185 | return verb::head; | |
186 | break; | |
187 | ||
188 | case 'L': | |
189 | if(eq(v, "INK")) | |
190 | return verb::link; | |
191 | if(eq(v, "OCK")) | |
192 | return verb::lock; | |
193 | break; | |
194 | ||
195 | case 'M': | |
196 | c = v[0]; | |
197 | v.remove_prefix(1); | |
198 | switch(c) | |
199 | { | |
200 | case '-': | |
201 | if(eq(v, "SEARCH")) | |
202 | return verb::msearch; | |
203 | break; | |
204 | ||
205 | case 'E': | |
206 | if(eq(v, "RGE")) | |
207 | return verb::merge; | |
208 | break; | |
209 | ||
210 | case 'K': | |
211 | if(eq(v, "ACTIVITY")) | |
212 | return verb::mkactivity; | |
213 | if(v[0] == 'C') | |
214 | { | |
215 | v.remove_prefix(1); | |
216 | if(eq(v, "ALENDAR")) | |
217 | return verb::mkcalendar; | |
218 | if(eq(v, "OL")) | |
219 | return verb::mkcol; | |
220 | break; | |
221 | } | |
222 | break; | |
223 | ||
224 | case 'O': | |
225 | if(eq(v, "VE")) | |
226 | return verb::move; | |
11fdf7f2 | 227 | BOOST_FALLTHROUGH; |
b32b8144 FG |
228 | |
229 | default: | |
230 | break; | |
231 | } | |
232 | break; | |
233 | ||
234 | case 'N': | |
235 | if(eq(v, "OTIFY")) | |
236 | return verb::notify; | |
237 | break; | |
238 | ||
239 | case 'O': | |
240 | if(eq(v, "PTIONS")) | |
241 | return verb::options; | |
242 | break; | |
243 | ||
244 | case 'P': | |
245 | c = v[0]; | |
246 | v.remove_prefix(1); | |
247 | switch(c) | |
248 | { | |
249 | case 'A': | |
250 | if(eq(v, "TCH")) | |
251 | return verb::patch; | |
252 | break; | |
253 | ||
254 | case 'O': | |
255 | if(eq(v, "ST")) | |
256 | return verb::post; | |
257 | break; | |
258 | ||
259 | case 'R': | |
260 | if(eq(v, "OPFIND")) | |
261 | return verb::propfind; | |
262 | if(eq(v, "OPPATCH")) | |
263 | return verb::proppatch; | |
264 | break; | |
265 | ||
266 | case 'U': | |
267 | if(eq(v, "RGE")) | |
268 | return verb::purge; | |
269 | if(eq(v, "T")) | |
270 | return verb::put; | |
11fdf7f2 | 271 | BOOST_FALLTHROUGH; |
b32b8144 FG |
272 | |
273 | default: | |
274 | break; | |
275 | } | |
276 | break; | |
277 | ||
278 | case 'R': | |
279 | if(v[0] != 'E') | |
280 | break; | |
281 | v.remove_prefix(1); | |
282 | if(eq(v, "BIND")) | |
283 | return verb::rebind; | |
284 | if(eq(v, "PORT")) | |
285 | return verb::report; | |
286 | break; | |
287 | ||
288 | case 'S': | |
289 | if(eq(v, "EARCH")) | |
290 | return verb::search; | |
291 | if(eq(v, "UBSCRIBE")) | |
292 | return verb::subscribe; | |
293 | break; | |
294 | ||
295 | case 'T': | |
296 | if(eq(v, "RACE")) | |
297 | return verb::trace; | |
298 | break; | |
299 | ||
300 | case 'U': | |
301 | if(v[0] != 'N') | |
302 | break; | |
303 | v.remove_prefix(1); | |
304 | if(eq(v, "BIND")) | |
305 | return verb::unbind; | |
306 | if(eq(v, "LINK")) | |
307 | return verb::unlink; | |
308 | if(eq(v, "LOCK")) | |
309 | return verb::unlock; | |
310 | if(eq(v, "SUBSCRIBE")) | |
311 | return verb::unsubscribe; | |
312 | break; | |
313 | ||
314 | default: | |
315 | break; | |
316 | } | |
317 | ||
318 | return verb::unknown; | |
319 | } | |
320 | ||
321 | } // detail | |
322 | ||
323 | inline | |
324 | string_view | |
325 | to_string(verb v) | |
326 | { | |
327 | return detail::verb_to_string(v); | |
328 | } | |
329 | ||
330 | inline | |
331 | verb | |
332 | string_to_verb(string_view s) | |
333 | { | |
334 | return detail::string_to_verb(s); | |
335 | } | |
336 | ||
337 | } // http | |
338 | } // beast | |
339 | } // boost | |
340 | ||
341 | #endif |