HTML Diff http/server/request

src/examples/cpp03/http/server/request_parser.cpp		src/examples/cpp11/http/server/request_parser.cpp
⋮		⋮
1	//	1	//
2	//·request_parser.cpp	2	//·request_parser.cpp
3	//·~~~~~~~~~~~~~~~~~~	3	//·~~~~~~~~~~~~~~~~~~
4	//	4	//
5	//·Copyright·(c)·2003-2021·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com)	5	//·Copyright·(c)·2003-2021·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com)
6	//	6	//
7	//·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying	7	//·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying
8	//·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt)	8	//·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt)
9	//	9	//
10		10
11	#include·"request_parser.hpp"	11	#include·"request_parser.hpp"
12	#include·"request.hpp"	12	#include·"request.hpp"
13		13
14	namespace·http·{	14	namespace·http·{
15	namespace·server·{	15	namespace·server·{
16		16
17	request_parser::request_parser()	17	request_parser::request_parser()
18	··:·state_(method_start)	18	··:·state_(method_start)
19	{	19	{
20	}	20	}
21		21
22	void·request_parser::reset()	22	void·request_parser::reset()
23	{	23	{
24	··state_·=·method_start;	24	··state_·=·method_start;
25	}	25	}
26		26
27	boost::tribool·request_parser::consume(request&·req,·char·input)	27	request_parser::result_type·request_parser::consume(request&·req,·char·input)
28	{	28	{
29	··switch·(state_)	29	··switch·(state_)
30	··{	30	··{
31	··case·method_start:	31	··case·method_start:
32	····if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))	32	····if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))
33	····{	33	····{
34	······return·false;	34	······return·bad;
35	····}	35	····}
36	····else	36	····else
37	····{	37	····{
38	······state_·=·method;	38	······state_·=·method;
39	······req.method.push_back(input);	39	······req.method.push_back(input);
40	······return·boost::indeterminate;	40	······return·indeterminate;
41	····}	41	····}
42	··case·method:	42	··case·method:
43	····if·(input·==·'·')	43	····if·(input·==·'·')
44	····{	44	····{
45	······state_·=·uri;	45	······state_·=·uri;
46	······return·boost::indeterminate;	46	······return·indeterminate;
47	····}	47	····}
48	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))	48	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))
49	····{	49	····{
50	······return·false;	50	······return·bad;
51	····}	51	····}
52	····else	52	····else
53	····{	53	····{
54	······req.method.push_back(input);	54	······req.method.push_back(input);
55	······return·boost::indeterminate;	55	······return·indeterminate;
56	····}	56	····}
57	··case·uri:	57	··case·uri:
58	····if·(input·==·'·')	58	····if·(input·==·'·')
59	····{	59	····{
60	······state_·=·http_version_h;	60	······state_·=·http_version_h;
61	······return·boost::indeterminate;	61	······return·indeterminate;
62	····}	62	····}
63	····else·if·(is_ctl(input))	63	····else·if·(is_ctl(input))
64	····{	64	····{
65	······return·false;	65	······return·bad;
66	····}	66	····}
67	····else	67	····else
68	····{	68	····{
69	······req.uri.push_back(input);	69	······req.uri.push_back(input);
70	······return·boost::indeterminate;	70	······return·indeterminate;
71	····}	71	····}
72	··case·http_version_h:	72	··case·http_version_h:
73	····if·(input·==·'H')	73	····if·(input·==·'H')
74	····{	74	····{
75	······state_·=·http_version_t_1;	75	······state_·=·http_version_t_1;
76	······return·boost::indeterminate;	76	······return·indeterminate;
77	····}	77	····}
78	····else	78	····else
79	····{	79	····{
80	······return·false;	80	······return·bad;
81	····}	81	····}
82	··case·http_version_t_1:	82	··case·http_version_t_1:
83	····if·(input·==·'T')	83	····if·(input·==·'T')
84	····{	84	····{
85	······state_·=·http_version_t_2;	85	······state_·=·http_version_t_2;
86	······return·boost::indeterminate;	86	······return·indeterminate;
87	····}	87	····}
88	····else	88	····else
89	····{	89	····{
90	······return·false;	90	······return·bad;
91	····}	91	····}
92	··case·http_version_t_2:	92	··case·http_version_t_2:
93	····if·(input·==·'T')	93	····if·(input·==·'T')
94	····{	94	····{
95	······state_·=·http_version_p;	95	······state_·=·http_version_p;
96	······return·boost::indeterminate;	96	······return·indeterminate;
97	····}	97	····}
98	····else	98	····else
99	····{	99	····{
100	······return·false;	100	······return·bad;
101	····}	101	····}
102	··case·http_version_p:	102	··case·http_version_p:
103	····if·(input·==·'P')	103	····if·(input·==·'P')
104	····{	104	····{
105	······state_·=·http_version_slash;	105	······state_·=·http_version_slash;
106	······return·boost::indeterminate;	106	······return·indeterminate;
107	····}	107	····}
108	····else	108	····else
109	····{	109	····{
110	······return·false;	110	······return·bad;
111	····}	111	····}
112	··case·http_version_slash:	112	··case·http_version_slash:
113	····if·(input·==·'/')	113	····if·(input·==·'/')
114	····{	114	····{
115	······req.http_version_major·=·0;	115	······req.http_version_major·=·0;
116	······req.http_version_minor·=·0;	116	······req.http_version_minor·=·0;
117	······state_·=·http_version_major_start;	117	······state_·=·http_version_major_start;
118	······return·boost::indeterminate;	118	······return·indeterminate;
119	····}	119	····}
120	····else	120	····else
121	····{	121	····{
122	······return·false;	122	······return·bad;
123	····}	123	····}
124	··case·http_version_major_start:	124	··case·http_version_major_start:
125	····if·(is_digit(input))	125	····if·(is_digit(input))
126	····{	126	····{
127	······req.http_version_major·=·req.http_version_major·*·10·+·input·-·'0';	127	······req.http_version_major·=·req.http_version_major·*·10·+·input·-·'0';
128	······state_·=·http_version_major;	128	······state_·=·http_version_major;
129	······return·boost::indeterminate;	129	······return·indeterminate;
130	····}	130	····}
131	····else	131	····else
132	····{	132	····{
133	······return·false;	133	······return·bad;
134	····}	134	····}
135	··case·http_version_major:	135	··case·http_version_major:
136	····if·(input·==·'.')	136	····if·(input·==·'.')
137	····{	137	····{
138	······state_·=·http_version_minor_start;	138	······state_·=·http_version_minor_start;
139	······return·boost::indeterminate;	139	······return·indeterminate;
140	····}	140	····}
141	····else·if·(is_digit(input))	141	····else·if·(is_digit(input))
142	····{	142	····{
143	······req.http_version_major·=·req.http_version_major·*·10·+·input·-·'0';	143	······req.http_version_major·=·req.http_version_major·*·10·+·input·-·'0';
144	······return·boost::indeterminate;	144	······return·indeterminate;
145	····}	145	····}
146	····else	146	····else
147	····{	147	····{
148	······return·false;	148	······return·bad;
149	····}	149	····}
150	··case·http_version_minor_start:	150	··case·http_version_minor_start:
151	····if·(is_digit(input))	151	····if·(is_digit(input))
152	····{	152	····{
153	······req.http_version_minor·=·req.http_version_minor·*·10·+·input·-·'0';	153	······req.http_version_minor·=·req.http_version_minor·*·10·+·input·-·'0';
154	······state_·=·http_version_minor;	154	······state_·=·http_version_minor;
155	······return·boost::indeterminate;	155	······return·indeterminate;
156	····}	156	····}
157	····else	157	····else
158	····{	158	····{
159	······return·false;	159	······return·bad;
160	····}	160	····}
161	··case·http_version_minor:	161	··case·http_version_minor:
162	····if·(input·==·'\r')	162	····if·(input·==·'\r')
163	····{	163	····{
164	······state_·=·expecting_newline_1;	164	······state_·=·expecting_newline_1;
165	······return·boost::indeterminate;	165	······return·indeterminate;
166	····}	166	····}
167	····else·if·(is_digit(input))	167	····else·if·(is_digit(input))
168	····{	168	····{
169	······req.http_version_minor·=·req.http_version_minor·*·10·+·input·-·'0';	169	······req.http_version_minor·=·req.http_version_minor·*·10·+·input·-·'0';
170	······return·boost::indeterminate;	170	······return·indeterminate;
171	····}	171	····}
172	····else	172	····else
173	····{	173	····{
174	······return·false;	174	······return·bad;
175	····}	175	····}
176	··case·expecting_newline_1:	176	··case·expecting_newline_1:
177	····if·(input·==·'\n')	177	····if·(input·==·'\n')
178	····{	178	····{
179	······state_·=·header_line_start;	179	······state_·=·header_line_start;
180	······return·boost::indeterminate;	180	······return·indeterminate;
181	····}	181	····}
182	····else	182	····else
183	····{	183	····{
184	······return·false;	184	······return·bad;
185	····}	185	····}
186	··case·header_line_start:	186	··case·header_line_start:
187	····if·(input·==·'\r')	187	····if·(input·==·'\r')
188	····{	188	····{
189	······state_·=·expecting_newline_3;	189	······state_·=·expecting_newline_3;
190	······return·boost::indeterminate;	190	······return·indeterminate;
191	····}	191	····}
192	····else·if·(!req.headers.empty()·&&·(input·==·'·'·\|\|·input·==·'\t'))	192	····else·if·(!req.headers.empty()·&&·(input·==·'·'·\|\|·input·==·'\t'))
193	····{	193	····{
194	······state_·=·header_lws;	194	······state_·=·header_lws;
195	······return·boost::indeterminate;	195	······return·indeterminate;
196	····}	196	····}
197	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))	197	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))
198	····{	198	····{
199	······return·false;	199	······return·bad;
200	····}	200	····}
201	····else	201	····else
202	····{	202	····{
203	······req.headers.push_back(header());	203	······req.headers.push_back(header());
204	······req.headers.back().name.push_back(input);	204	······req.headers.back().name.push_back(input);
205	······state_·=·header_name;	205	······state_·=·header_name;
206	······return·boost::indeterminate;	206	······return·indeterminate;
207	····}	207	····}
208	··case·header_lws:	208	··case·header_lws:
209	····if·(input·==·'\r')	209	····if·(input·==·'\r')
210	····{	210	····{
211	······state_·=·expecting_newline_2;	211	······state_·=·expecting_newline_2;
212	······return·boost::indeterminate;	212	······return·indeterminate;
213	····}	213	····}
214	····else·if·(input·==·'·'·\|\|·input·==·'\t')	214	····else·if·(input·==·'·'·\|\|·input·==·'\t')
215	····{	215	····{
216	······return·boost::indeterminate;	216	······return·indeterminate;
217	····}	217	····}
218	····else·if·(is_ctl(input))	218	····else·if·(is_ctl(input))
219	····{	219	····{
220	······return·false;	220	······return·bad;
221	····}	221	····}
222	····else	222	····else
223	····{	223	····{
224	······state_·=·header_value;	224	······state_·=·header_value;
225	······req.headers.back().value.push_back(input);	225	······req.headers.back().value.push_back(input);
226	······return·boost::indeterminate;	226	······return·indeterminate;
227	····}	227	····}
228	··case·header_name:	228	··case·header_name:
229	····if·(input·==·':')	229	····if·(input·==·':')
230	····{	230	····{
231	······state_·=·space_before_header_value;	231	······state_·=·space_before_header_value;
232	······return·boost::indeterminate;	232	······return·indeterminate;
233	····}	233	····}
234	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))	234	····else·if·(!is_char(input)·\|\|·is_ctl(input)·\|\|·is_tspecial(input))
235	····{	235	····{
236	······return·false;	236	······return·bad;
237	····}	237	····}
238	····else	238	····else
239	····{	239	····{
240	······req.headers.back().name.push_back(input);	240	······req.headers.back().name.push_back(input);
241	······return·boost::indeterminate;	241	······return·indeterminate;
242	····}	242	····}
243	··case·space_before_header_value:	243	··case·space_before_header_value:
244	····if·(input·==·'·')	244	····if·(input·==·'·')
245	····{	245	····{
246	······state_·=·header_value;	246	······state_·=·header_value;
247	······return·boost::indeterminate;	247	······return·indeterminate;
248	····}	248	····}
249	····else	249	····else
250	····{	250	····{
251	······return·false;	251	······return·bad;
252	····}	252	····}
253	··case·header_value:	253	··case·header_value:
254	····if·(input·==·'\r')	254	····if·(input·==·'\r')
255	····{	255	····{
256	······state_·=·expecting_newline_2;	256	······state_·=·expecting_newline_2;
257	······return·boost::indeterminate;	257	······return·indeterminate;
258	····}	258	····}
259	····else·if·(is_ctl(input))	259	····else·if·(is_ctl(input))
260	····{	260	····{
261	······return·false;	261	······return·bad;
262	····}	262	····}
263	····else	263	····else
264	····{	264	····{
265	······req.headers.back().value.push_back(input);	265	······req.headers.back().value.push_back(input);
266	······return·boost::indeterminate;	266	······return·indeterminate;
267	····}	267	····}
268	··case·expecting_newline_2:	268	··case·expecting_newline_2:
269	····if·(input·==·'\n')	269	····if·(input·==·'\n')
270	····{	270	····{
271	······state_·=·header_line_start;	271	······state_·=·header_line_start;
272	······return·boost::indeterminate;	272	······return·indeterminate;
273	····}	273	····}
274	····else	274	····else
275	····{	275	····{
276	······return·false;	276	······return·bad;
277	····}	277	····}
278	··case·expecting_newline_3:	278	··case·expecting_newline_3:
279	····return·(input·==·'\n');	279	····return·(input·==·'\n')·?·good·:·bad;
280	··default:	280	··default:
281	····return·false;	281	····return·bad;
282	··}	282	··}
283	}	283	}
284		284
285	bool·request_parser::is_char(int·c)	285	bool·request_parser::is_char(int·c)
286	{	286	{
287	··return·c·>=·0·&&·c·<=·127;	287	··return·c·>=·0·&&·c·<=·127;
288	}	288	}
289		289
290	bool·request_parser::is_ctl(int·c)	290	bool·request_parser::is_ctl(int·c)
291	{	291	{
292	··return·(c·>=·0·&&·c·<=·31)·\|\|·(c·==·127);	292	··return·(c·>=·0·&&·c·<=·31)·\|\|·(c·==·127);
293	}	293	}
294		294
295	bool·request_parser::is_tspecial(int·c)	295	bool·request_parser::is_tspecial(int·c)
296	{	296	{
297	··switch·(c)	297	··switch·(c)
298	··{	298	··{
299	··case·'(':·case·')':·case·'<':·case·'>':·case·'@':	299	··case·'(':·case·')':·case·'<':·case·'>':·case·'@':
300	··case·',':·case·';':·case·':':·case·'\\':·case·'"':	300	··case·',':·case·';':·case·':':·case·'\\':·case·'"':
301	··case·'/':·case·'[':·case·']':·case·'?':·case·'=':	301	··case·'/':·case·'[':·case·']':·case·'?':·case·'=':
302	··case·'{':·case·'}':·case·'·':·case·'\t':	302	··case·'{':·case·'}':·case·'·':·case·'\t':
303	····return·true;	303	····return·true;
304	··default:	304	··default:
305	····return·false;	305	····return·false;
306	··}	306	··}
307	}	307	}
308		308
309	bool·request_parser::is_digit(int·c)	309	bool·request_parser::is_digit(int·c)
310	{	310	{
311	··return·c·>=·'0'·&&·c·<=·'9';	311	··return·c·>=·'0'·&&·c·<=·'9';
312	}	312	}
313		313
314	}·//·namespace·server	314	}·//·namespace·server
315	}·//·namespace·http	315	}·//·namespace·http