Line data Source code
1 : /*
2 : +--------------------------------------------------------------------+
3 : | PECL :: http |
4 : +--------------------------------------------------------------------+
5 : | Redistribution and use in source and binary forms, with or without |
6 : | modification, are permitted provided that the conditions mentioned |
7 : | in the accompanying LICENSE file are met. |
8 : +--------------------------------------------------------------------+
9 : | Copyright (c) 2004-2014, Michael Wallner <mike@php.net> |
10 : +--------------------------------------------------------------------+
11 : */
12 :
13 : #include "php_http_api.h"
14 :
15 136 : php_http_info_t *php_http_info_init(php_http_info_t *i TSRMLS_DC)
16 : {
17 136 : if (!i) {
18 0 : i = emalloc(sizeof(*i));
19 : }
20 :
21 136 : memset(i, 0, sizeof(*i));
22 :
23 136 : return i;
24 : }
25 :
26 280 : void php_http_info_dtor(php_http_info_t *i)
27 : {
28 280 : switch (i->type) {
29 : case PHP_HTTP_REQUEST:
30 61 : PTR_SET(PHP_HTTP_INFO(i).request.method, NULL);
31 61 : PTR_SET(PHP_HTTP_INFO(i).request.url, NULL);
32 61 : break;
33 :
34 : case PHP_HTTP_RESPONSE:
35 164 : PTR_SET(PHP_HTTP_INFO(i).response.status, NULL);
36 164 : break;
37 :
38 : default:
39 55 : break;
40 : }
41 280 : }
42 :
43 0 : void php_http_info_free(php_http_info_t **i)
44 : {
45 0 : if (*i) {
46 0 : php_http_info_dtor(*i);
47 0 : efree(*i);
48 0 : *i = NULL;
49 : }
50 0 : }
51 :
52 537 : php_http_info_t *php_http_info_parse(php_http_info_t *info, const char *pre_header TSRMLS_DC)
53 : {
54 : const char *end, *http;
55 537 : zend_bool free_info = !info;
56 :
57 : /* sane parameter */
58 537 : if ((!pre_header) || (!*pre_header)) {
59 0 : return NULL;
60 : }
61 :
62 : /* where's the end of the line */
63 537 : if (!(end = php_http_locate_eol(pre_header, NULL))) {
64 37 : end = pre_header + strlen(pre_header);
65 : }
66 :
67 : /* there must be HTTP/1.x in the line */
68 537 : if (!(http = php_http_locate_str(pre_header, end - pre_header, "HTTP/", lenof("HTTP/")))) {
69 401 : return NULL;
70 : }
71 :
72 136 : info = php_http_info_init(info TSRMLS_CC);
73 :
74 : /* and nothing than SPACE or NUL after HTTP/X.x */
75 136 : if (!php_http_version_parse(&info->http.version, http TSRMLS_CC)
76 136 : || (http[lenof("HTTP/X.x")] && (!PHP_HTTP_IS_CTYPE(space, http[lenof("HTTP/X.x")])))) {
77 5 : if (free_info) {
78 0 : php_http_info_free(&info);
79 : }
80 5 : return NULL;
81 : }
82 :
83 : #if 0
84 : {
85 : char *line = estrndup(pre_header, end - pre_header);
86 : fprintf(stderr, "http_parse_info('%s')\n", line);
87 : efree(line);
88 : }
89 : #endif
90 :
91 : /* is response */
92 131 : if (pre_header == http) {
93 88 : const char *status = NULL, *code = http + sizeof("HTTP/X.x");
94 :
95 88 : info->type = PHP_HTTP_RESPONSE;
96 88 : while (' ' == *code) ++code;
97 88 : if (code && end > code) {
98 : /* rfc7230#3.1.2 The status-code element is a 3-digit integer code */
99 87 : PHP_HTTP_INFO(info).response.code = 100*(*code++ - '0');
100 87 : PHP_HTTP_INFO(info).response.code += 10*(*code++ - '0');
101 87 : PHP_HTTP_INFO(info).response.code += *code++ - '0';
102 87 : if (PHP_HTTP_INFO(info).response.code < 100 || PHP_HTTP_INFO(info).response.code > 599) {
103 1 : if (free_info) {
104 0 : php_http_info_free(&info);
105 : }
106 1 : return NULL;
107 : }
108 86 : status = code;
109 : } else {
110 1 : PHP_HTTP_INFO(info).response.code = 0;
111 : }
112 87 : if (status && end > status) {
113 73 : while (' ' == *status) ++status;
114 73 : PHP_HTTP_INFO(info).response.status = estrndup(status, end - status);
115 : } else {
116 14 : PHP_HTTP_INFO(info).response.status = NULL;
117 : }
118 :
119 87 : return info;
120 : }
121 :
122 : /* is request */
123 43 : else if (*(http - 1) == ' ' && (!http[lenof("HTTP/X.x")] || http[lenof("HTTP/X.x")] == '\r' || http[lenof("HTTP/X.x")] == '\n')) {
124 42 : const char *url = strchr(pre_header, ' ');
125 :
126 42 : info->type = PHP_HTTP_REQUEST;
127 82 : if (url && http > url) {
128 42 : size_t url_len = url - pre_header;
129 :
130 42 : PHP_HTTP_INFO(info).request.method = estrndup(pre_header, url_len);
131 :
132 42 : while (' ' == *url) ++url;
133 42 : while (' ' == *(http-1)) --http;
134 :
135 42 : if (http > url) {
136 : /* CONNECT presents an authority only */
137 40 : if (strcasecmp(PHP_HTTP_INFO(info).request.method, "CONNECT")) {
138 39 : PHP_HTTP_INFO(info).request.url = php_http_url_parse(url, http - url, ~0 TSRMLS_CC);
139 : } else {
140 1 : PHP_HTTP_INFO(info).request.url = php_http_url_parse_authority(url, http - url, ~0 TSRMLS_CC);
141 : }
142 : } else {
143 2 : PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
144 2 : return NULL;
145 : }
146 : } else {
147 0 : PHP_HTTP_INFO(info).request.method = NULL;
148 0 : PHP_HTTP_INFO(info).request.url = NULL;
149 : }
150 :
151 40 : return info;
152 : }
153 :
154 : /* some darn header containing HTTP/X.x */
155 : else {
156 1 : if (free_info) {
157 0 : php_http_info_free(&info);
158 : }
159 1 : return NULL;
160 : }
161 : }
162 :
163 : /*
164 : * Local variables:
165 : * tab-width: 4
166 : * c-basic-offset: 4
167 : * End:
168 : * vim600: noet sw=4 ts=4 fdm=marker
169 : * vim<600: noet sw=4 ts=4
170 : */
171 :
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