Mercurial > hg > nginx
annotate src/imap/ngx_imap_parse.c @ 529:e5d7d0334fdb release-0.1.39
nginx-0.1.39-RELEASE import
*) The changes in the ngx_http_charset_module: the "default_charset"
directive was canceled; the "charset" directive sets the response
charset; the "source_charset" directive sets the source charset only.
*) Bugfix: the backend "WWW-Authenticate" header line did not
transferred while the 401 response code redirecting.
*) Bugfix: the ngx_http_proxy_module and ngx_http_fastcgi_module may
close a connection before anything was transferred to a client; the
bug had appeared in 0.1.38.
*) Workaround: the Linux glibc crypt_r() initialization bug.
*) Bugfix: the ngx_http_ssi_module did not support the relative URI in
the "include virtual" command.
*) Bugfix: if the backend response had the "Location" header line and
nginx should not rewrite this line, then the 500 code response body
was transferred; the bug had appeared in 0.1.29.
*) Bugfix: some directives of the ngx_http_proxy_module and
ngx_http_fastcgi_module were not inherited from the server to the
location level; the bug had appeared in 0.1.29.
*) Bugfix: the ngx_http_ssl_module did not support the certificate
chain.
*) Bugfix: the ngx_http_autoindex_module did not show correctly the
long file names; the bug had appeared in 0.1.38.
*) Bugfixes in IMAP/POP3 proxy in interaction with a backend at the
login state.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 14 Jul 2005 12:51:53 +0000 |
| parents | 7fa11e5c6e96 |
| children | 511a89da35ad |
| rev | line source |
|---|---|
|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
1 |
|
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
2 /* |
|
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
4 */ |
|
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
5 |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
6 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 #include <ngx_config.h> |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #include <ngx_core.h> |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #include <ngx_event.h> |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 #include <ngx_imap.h> |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 |
| 527 | 13 ngx_int_t ngx_imap_parse_command(ngx_imap_session_t *s) |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
14 { |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
15 u_char ch, *p, *c; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
16 ngx_str_t *arg; |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
17 enum { |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
18 sw_start = 0, |
| 527 | 19 sw_spaces_before_command, |
| 20 sw_command, | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
21 sw_spaces_before_argument, |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
22 sw_argument, |
| 527 | 23 sw_literal, |
| 24 sw_start_literal_argument, | |
| 25 sw_literal_argument, | |
| 26 sw_end_literal_argument, | |
| 27 sw_almost_done | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
28 } state; |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
29 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
30 state = s->state; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
31 |
| 527 | 32 for (p = s->buffer->pos; p < s->buffer->last; p++) { |
| 33 ch = *p; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
34 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
35 switch (state) { |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
36 |
| 527 | 37 /* IMAP tag */ |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
38 case sw_start: |
| 527 | 39 switch (ch) { |
| 40 case ' ': | |
| 41 s->tag.len = p - s->buffer->start + 1; | |
| 42 s->tag.data = s->buffer->start; | |
| 43 state = sw_spaces_before_command; | |
| 44 break; | |
| 45 case CR: | |
| 46 s->state = sw_start; | |
| 47 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
| 48 case LF: | |
| 49 s->state = sw_start; | |
| 50 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
| 51 } | |
| 52 break; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
53 |
| 527 | 54 case sw_spaces_before_command: |
| 55 switch (ch) { | |
| 56 case ' ': | |
| 57 break; | |
| 58 case CR: | |
| 59 s->state = sw_start; | |
| 60 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
| 61 case LF: | |
| 62 s->state = sw_start; | |
| 63 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
| 64 default: | |
| 65 s->cmd_start = p; | |
| 66 state = sw_command; | |
| 67 break; | |
| 68 } | |
| 69 break; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
70 |
| 527 | 71 case sw_command: |
| 72 if (ch == ' ' || ch == CR || ch == LF) { | |
| 73 | |
| 74 c = s->cmd_start; | |
| 75 | |
| 76 switch (p - c) { | |
| 77 | |
| 78 case 4: | |
| 79 if ((c[0] == 'N' || c[0] == 'n') | |
| 80 && (c[1] == 'O'|| c[1] == 'o') | |
| 81 && (c[2] == 'O'|| c[2] == 'o') | |
| 82 && (c[3] == 'P'|| c[3] == 'p')) | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
83 { |
| 527 | 84 s->command = NGX_IMAP_NOOP; |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
85 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
86 } else { |
| 527 | 87 goto invalid; |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
88 } |
| 527 | 89 break; |
| 90 | |
| 91 case 5: | |
| 92 if ((c[0] == 'L'|| c[0] == 'l') | |
| 93 && (c[1] == 'O'|| c[1] == 'o') | |
| 94 && (c[2] == 'G'|| c[2] == 'g') | |
| 95 && (c[3] == 'I'|| c[3] == 'i') | |
| 96 && (c[4] == 'N'|| c[4] == 'n')) | |
| 97 { | |
| 98 s->command = NGX_IMAP_LOGIN; | |
| 99 | |
| 100 } else { | |
| 101 goto invalid; | |
| 102 } | |
| 103 break; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
104 |
| 527 | 105 case 6: |
| 106 if ((c[0] == 'L'|| c[0] == 'l') | |
| 107 && (c[1] == 'O'|| c[1] == 'o') | |
| 108 && (c[2] == 'G'|| c[2] == 'g') | |
| 109 && (c[3] == 'O'|| c[3] == 'o') | |
| 110 && (c[4] == 'U'|| c[4] == 'u') | |
| 111 && (c[5] == 'T'|| c[5] == 't')) | |
| 112 { | |
| 113 s->command = NGX_IMAP_LOGOUT; | |
| 114 | |
| 115 } else { | |
| 116 goto invalid; | |
| 117 } | |
| 118 break; | |
| 119 | |
| 120 case 10: | |
| 121 if ((c[0] == 'C'|| c[0] == 'c') | |
| 122 && (c[1] == 'A'|| c[1] == 'a') | |
| 123 && (c[2] == 'P'|| c[2] == 'p') | |
| 124 && (c[3] == 'A'|| c[3] == 'a') | |
| 125 && (c[4] == 'B'|| c[4] == 'b') | |
| 126 && (c[5] == 'I'|| c[5] == 'i') | |
| 127 && (c[6] == 'L'|| c[6] == 'l') | |
| 128 && (c[7] == 'I'|| c[7] == 'i') | |
| 129 && (c[8] == 'T'|| c[8] == 't') | |
| 130 && (c[9] == 'Y'|| c[9] == 'y')) | |
| 131 { | |
| 132 s->command = NGX_IMAP_CAPABILITY; | |
| 133 | |
| 134 } else { | |
| 135 goto invalid; | |
| 136 } | |
| 137 break; | |
| 138 | |
| 139 default: | |
| 140 goto invalid; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 } |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
143 switch (ch) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
144 case ' ': |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
145 state = sw_spaces_before_argument; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
146 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
147 case CR: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
148 state = sw_almost_done; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
149 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
150 case LF: |
| 527 | 151 goto done; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
152 } |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
153 break; |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
154 } |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
155 |
| 527 | 156 if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { |
| 157 goto invalid; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 } |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
159 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
160 break; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
161 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
162 case sw_spaces_before_argument: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
163 switch (ch) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
164 case ' ': |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
165 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
166 case CR: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
167 state = sw_almost_done; |
| 527 | 168 s->arg_end = p; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
169 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
170 case LF: |
| 527 | 171 s->arg_end = p; |
| 172 goto done; | |
| 173 case '"': | |
| 174 if (s->args.nelts <= 2) { | |
| 175 s->quoted = 1; | |
| 176 s->arg_start = p + 1; | |
| 177 state = sw_argument; | |
| 178 break; | |
| 179 } | |
| 180 goto invalid; | |
| 181 case '{': | |
| 182 if (s->args.nelts <= 2) { | |
| 183 state = sw_literal; | |
| 184 break; | |
| 185 } | |
| 186 goto invalid; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
187 default: |
| 527 | 188 if (s->args.nelts <= 2) { |
| 189 s->arg_start = p; | |
| 190 state = sw_argument; | |
| 191 break; | |
| 192 } | |
| 193 goto invalid; | |
| 194 } | |
| 195 break; | |
| 196 | |
| 197 case sw_argument: | |
| 198 switch (ch) { | |
| 199 case '"': | |
| 200 if (!s->quoted) { | |
| 201 break; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
202 } |
| 527 | 203 s->quoted = 0; |
| 204 /* fall through */ | |
| 205 case ' ': | |
| 206 case CR: | |
| 207 case LF: | |
| 208 arg = ngx_array_push(&s->args); | |
| 209 if (arg == NULL) { | |
| 210 return NGX_ERROR; | |
| 211 } | |
| 212 arg->len = p - s->arg_start; | |
| 213 arg->data = s->arg_start; | |
| 214 s->arg_start = NULL; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
215 |
| 527 | 216 switch (ch) { |
| 217 case '"': | |
| 218 case ' ': | |
| 219 state = sw_spaces_before_argument; | |
| 220 break; | |
| 221 case CR: | |
| 222 state = sw_almost_done; | |
| 223 break; | |
| 224 case LF: | |
| 225 goto done; | |
| 226 } | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
227 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
228 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
229 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
230 |
| 527 | 231 case sw_literal: |
| 232 if (ch >= '0' && ch <= '9') { | |
| 233 s->literal_len = s->literal_len * 10 + (ch - '0'); | |
| 234 break; | |
| 235 } | |
| 236 if (ch == '}') { | |
| 237 state = sw_start_literal_argument; | |
| 238 break; | |
| 239 } | |
| 240 goto invalid; | |
| 241 | |
| 242 case sw_start_literal_argument: | |
| 243 switch (ch) { | |
| 244 case CR: | |
| 245 break; | |
| 246 case LF: | |
| 247 s->buffer->pos = p + 1; | |
| 248 s->arg_start = p + 1; | |
| 249 s->state = sw_literal_argument; | |
| 250 return NGX_IMAP_NEXT; | |
| 251 } | |
| 252 goto invalid; | |
| 253 | |
| 254 case sw_literal_argument: | |
| 529 | 255 if (s->literal_len && --s->literal_len) { |
| 527 | 256 break; |
| 257 } | |
| 258 | |
| 259 arg = ngx_array_push(&s->args); | |
| 260 if (arg == NULL) { | |
| 261 return NGX_ERROR; | |
| 262 } | |
| 263 arg->len = p + 1 - s->arg_start; | |
| 264 arg->data = s->arg_start; | |
| 265 s->arg_start = NULL; | |
| 266 state = sw_end_literal_argument; | |
| 267 | |
| 268 break; | |
| 269 | |
| 270 case sw_end_literal_argument: | |
| 271 switch (ch) { | |
| 272 case '{': | |
| 273 if (s->args.nelts <= 2) { | |
| 274 state = sw_literal; | |
| 275 break; | |
| 276 } | |
| 277 goto invalid; | |
| 278 case CR: | |
| 279 state = sw_almost_done; | |
| 280 break; | |
| 281 case LF: | |
| 282 goto done; | |
| 283 default: | |
| 529 | 284 state = sw_spaces_before_argument; |
| 285 break; | |
| 527 | 286 } |
| 287 break; | |
| 288 | |
| 289 case sw_almost_done: | |
| 290 switch (ch) { | |
| 291 case LF: | |
| 292 goto done; | |
| 293 default: | |
| 294 goto invalid; | |
| 295 } | |
| 296 } | |
| 297 } | |
| 298 | |
| 299 s->buffer->pos = p; | |
| 300 s->state = state; | |
| 301 | |
| 302 return NGX_AGAIN; | |
| 303 | |
| 304 done: | |
| 305 | |
| 306 s->buffer->pos = p + 1; | |
| 307 | |
| 308 if (s->arg_start) { | |
| 309 arg = ngx_array_push(&s->args); | |
| 310 if (arg == NULL) { | |
| 311 return NGX_ERROR; | |
| 312 } | |
| 313 arg->len = s->arg_end - s->arg_start; | |
| 314 arg->data = s->arg_start; | |
| 315 s->arg_start = NULL; | |
| 316 s->cmd_start = NULL; | |
| 317 s->quoted = 0; | |
| 318 s->literal_len = 0; | |
| 319 } | |
| 320 | |
| 321 s->state = sw_start; | |
| 322 | |
| 323 return NGX_OK; | |
| 324 | |
| 325 invalid: | |
| 326 | |
| 327 s->state = sw_start; | |
| 328 s->quoted = 0; | |
| 329 s->literal_len = 0; | |
| 330 | |
| 331 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
| 332 } | |
| 333 | |
| 334 | |
| 335 ngx_int_t ngx_pop3_parse_command(ngx_imap_session_t *s) | |
| 336 { | |
| 337 u_char ch, *p, *c, c0, c1, c2, c3; | |
| 338 ngx_str_t *arg; | |
| 339 enum { | |
| 340 sw_start = 0, | |
| 341 sw_spaces_before_argument, | |
| 342 sw_argument, | |
| 343 sw_almost_done | |
| 344 } state; | |
| 345 | |
| 346 state = s->state; | |
| 347 | |
| 348 for (p = s->buffer->pos; p < s->buffer->last; p++) { | |
| 349 ch = *p; | |
| 350 | |
| 351 switch (state) { | |
| 352 | |
| 353 /* POP3 command */ | |
| 354 case sw_start: | |
| 355 if (ch == ' ' || ch == CR || ch == LF) { | |
| 356 c = s->buffer->start; | |
| 357 | |
| 358 if (p - c == 4) { | |
| 359 | |
| 360 c0 = ngx_toupper(c[0]); | |
| 361 c1 = ngx_toupper(c[1]); | |
| 362 c2 = ngx_toupper(c[2]); | |
| 363 c3 = ngx_toupper(c[3]); | |
| 364 | |
| 365 if (c0 == 'U' && c1 == 'S' && c2 == 'E' && c3 == 'R') | |
| 366 { | |
| 367 s->command = NGX_POP3_USER; | |
| 368 | |
| 369 } else if (c0 == 'P' && c1 == 'A' && c2 == 'S' && c3 == 'S') | |
| 370 { | |
| 371 s->command = NGX_POP3_PASS; | |
| 372 | |
| 373 } else if (c0 == 'Q' && c1 == 'U' && c2 == 'I' && c3 == 'T') | |
| 374 { | |
| 375 s->command = NGX_POP3_QUIT; | |
| 376 | |
| 377 } else if (c0 == 'C' && c1 == 'A' && c2 == 'P' && c3 == 'A') | |
| 378 { | |
| 379 s->command = NGX_POP3_CAPA; | |
| 380 | |
| 381 } else if (c0 == 'N' && c1 == 'O' && c2 == 'O' && c3 == 'P') | |
| 382 { | |
| 383 s->command = NGX_POP3_NOOP; | |
| 384 | |
| 385 } else { | |
| 386 goto invalid; | |
| 387 } | |
| 388 | |
| 389 } else { | |
| 390 goto invalid; | |
| 391 } | |
| 392 | |
| 393 switch (ch) { | |
| 394 case ' ': | |
| 395 state = sw_spaces_before_argument; | |
| 396 break; | |
| 397 case CR: | |
| 398 state = sw_almost_done; | |
| 399 break; | |
| 400 case LF: | |
| 401 goto done; | |
| 402 } | |
| 403 break; | |
| 404 } | |
| 405 | |
| 406 if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { | |
| 407 goto invalid; | |
| 408 } | |
| 409 | |
| 410 break; | |
| 411 | |
| 412 case sw_spaces_before_argument: | |
| 413 switch (ch) { | |
| 414 case ' ': | |
| 415 break; | |
| 416 case CR: | |
| 417 state = sw_almost_done; | |
| 418 s->arg_end = p; | |
| 419 break; | |
| 420 case LF: | |
| 421 s->arg_end = p; | |
| 422 goto done; | |
| 423 default: | |
| 424 if (s->args.nelts <= 2) { | |
| 425 state = sw_argument; | |
| 426 s->arg_start = p; | |
| 427 break; | |
| 428 } | |
| 429 goto invalid; | |
| 430 } | |
| 431 break; | |
| 432 | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
433 case sw_argument: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
434 switch (ch) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
435 case ' ': |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
436 case CR: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
437 case LF: |
| 501 | 438 arg = ngx_array_push(&s->args); |
| 439 if (arg == NULL) { | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
440 return NGX_ERROR; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
441 } |
| 527 | 442 arg->len = p - s->arg_start; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
443 arg->data = s->arg_start; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
444 s->arg_start = NULL; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
445 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
446 switch (ch) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
447 case ' ': |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
448 state = sw_spaces_before_argument; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
449 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
450 case CR: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
451 state = sw_almost_done; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
452 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
453 case LF: |
| 527 | 454 goto done; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
455 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
456 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
457 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
458 default: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
459 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
460 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
461 break; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
462 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
463 case sw_almost_done: |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
464 switch (ch) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
465 case LF: |
| 527 | 466 goto done; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
467 default: |
| 527 | 468 goto invalid; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
469 } |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
470 } |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
471 } |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
472 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
473 s->buffer->pos = p; |
| 527 | 474 s->state = state; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
475 |
| 527 | 476 return NGX_AGAIN; |
| 477 | |
| 478 done: | |
| 479 | |
| 480 s->buffer->pos = p + 1; | |
| 481 | |
| 482 if (s->arg_start) { | |
| 483 arg = ngx_array_push(&s->args); | |
| 484 if (arg == NULL) { | |
| 485 return NGX_ERROR; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
486 } |
| 527 | 487 arg->len = s->arg_end - s->arg_start; |
| 488 arg->data = s->arg_start; | |
| 489 s->arg_start = NULL; | |
| 490 } | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
491 |
| 527 | 492 s->state = sw_start; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
417
diff
changeset
|
493 |
| 527 | 494 return NGX_OK; |
| 495 | |
| 496 invalid: | |
| 497 | |
| 498 s->state = sw_start; | |
| 499 | |
| 500 return NGX_IMAP_PARSE_INVALID_COMMAND; | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
501 } |