1 /* 2 * http_kv - HTTP version, method, status key-value string mapping 3 * 4 * Fully-rewritten from original 5 * Copyright(c) 2018 Glenn Strauss gstrauss()gluelogic.com All rights reserved 6 * License: BSD 3-clause (same as lighttpd) 7 */ 8 #include "first.h" 9 10 #include "http_kv.h" 11 #include "buffer.h" 12 13 #include <string.h> 14 15 typedef struct { 16 int key; 17 unsigned int vlen; 18 const char *value; 19 } keyvalue; 20 21 static const keyvalue http_versions[] = { 22 { HTTP_VERSION_1_1, CONST_LEN_STR("HTTP/1.1") }, 23 { HTTP_VERSION_1_0, CONST_LEN_STR("HTTP/1.0") }, 24 { HTTP_VERSION_UNSET, 0, NULL } 25 }; 26 27 static const keyvalue http_methods[] = { 28 { HTTP_METHOD_GET, CONST_LEN_STR("GET") }, 29 { HTTP_METHOD_HEAD, CONST_LEN_STR("HEAD") }, 30 { HTTP_METHOD_POST, CONST_LEN_STR("POST") }, 31 { HTTP_METHOD_PUT, CONST_LEN_STR("PUT") }, 32 { HTTP_METHOD_DELETE, CONST_LEN_STR("DELETE") }, 33 { HTTP_METHOD_CONNECT, CONST_LEN_STR("CONNECT") }, 34 { HTTP_METHOD_OPTIONS, CONST_LEN_STR("OPTIONS") }, 35 { HTTP_METHOD_TRACE, CONST_LEN_STR("TRACE") }, 36 { HTTP_METHOD_ACL, CONST_LEN_STR("ACL") }, 37 { HTTP_METHOD_BASELINE_CONTROL, CONST_LEN_STR("BASELINE-CONTROL") }, 38 { HTTP_METHOD_BIND, CONST_LEN_STR("BIND") }, 39 { HTTP_METHOD_CHECKIN, CONST_LEN_STR("CHECKIN") }, 40 { HTTP_METHOD_CHECKOUT, CONST_LEN_STR("CHECKOUT") }, 41 { HTTP_METHOD_COPY, CONST_LEN_STR("COPY") }, 42 { HTTP_METHOD_LABEL, CONST_LEN_STR("LABEL") }, 43 { HTTP_METHOD_LINK, CONST_LEN_STR("LINK") }, 44 { HTTP_METHOD_LOCK, CONST_LEN_STR("LOCK") }, 45 { HTTP_METHOD_MERGE, CONST_LEN_STR("MERGE") }, 46 { HTTP_METHOD_MKACTIVITY, CONST_LEN_STR("MKACTIVITY") }, 47 { HTTP_METHOD_MKCALENDAR, CONST_LEN_STR("MKCALENDAR") }, 48 { HTTP_METHOD_MKCOL, CONST_LEN_STR("MKCOL") }, 49 { HTTP_METHOD_MKREDIRECTREF, CONST_LEN_STR("MKREDIRECTREF") }, 50 { HTTP_METHOD_MKWORKSPACE, CONST_LEN_STR("MKWORKSPACE") }, 51 { HTTP_METHOD_MOVE, CONST_LEN_STR("MOVE") }, 52 { HTTP_METHOD_ORDERPATCH, CONST_LEN_STR("ORDERPATCH") }, 53 { HTTP_METHOD_PATCH, CONST_LEN_STR("PATCH") }, 54 { HTTP_METHOD_PROPFIND, CONST_LEN_STR("PROPFIND") }, 55 { HTTP_METHOD_PROPPATCH, CONST_LEN_STR("PROPPATCH") }, 56 { HTTP_METHOD_REBIND, CONST_LEN_STR("REBIND") }, 57 { HTTP_METHOD_REPORT, CONST_LEN_STR("REPORT") }, 58 { HTTP_METHOD_SEARCH, CONST_LEN_STR("SEARCH") }, 59 { HTTP_METHOD_UNBIND, CONST_LEN_STR("UNBIND") }, 60 { HTTP_METHOD_UNCHECKOUT, CONST_LEN_STR("UNCHECKOUT") }, 61 { HTTP_METHOD_UNLINK, CONST_LEN_STR("UNLINK") }, 62 { HTTP_METHOD_UNLOCK, CONST_LEN_STR("UNLOCK") }, 63 { HTTP_METHOD_UPDATE, CONST_LEN_STR("UPDATE") }, 64 { HTTP_METHOD_UPDATEREDIRECTREF, CONST_LEN_STR("UPDATEREDIRECTREF") }, 65 { HTTP_METHOD_VERSION_CONTROL, CONST_LEN_STR("VERSION-CONTROL") }, 66 67 { HTTP_METHOD_UNSET, 0, NULL } 68 }; 69 70 static const keyvalue http_status[] = { 71 { 100, CONST_LEN_STR("100 Continue") }, 72 { 101, CONST_LEN_STR("101 Switching Protocols") }, 73 { 102, CONST_LEN_STR("102 Processing") }, /* WebDAV */ 74 { 200, CONST_LEN_STR("200 OK") }, 75 { 201, CONST_LEN_STR("201 Created") }, 76 { 202, CONST_LEN_STR("202 Accepted") }, 77 { 203, CONST_LEN_STR("203 Non-Authoritative Information") }, 78 { 204, CONST_LEN_STR("204 No Content") }, 79 { 205, CONST_LEN_STR("205 Reset Content") }, 80 { 206, CONST_LEN_STR("206 Partial Content") }, 81 { 207, CONST_LEN_STR("207 Multi-status") }, /* WebDAV */ 82 { 300, CONST_LEN_STR("300 Multiple Choices") }, 83 { 301, CONST_LEN_STR("301 Moved Permanently") }, 84 { 302, CONST_LEN_STR("302 Found") }, 85 { 303, CONST_LEN_STR("303 See Other") }, 86 { 304, CONST_LEN_STR("304 Not Modified") }, 87 { 305, CONST_LEN_STR("305 Use Proxy") }, 88 { 306, CONST_LEN_STR("306 (Unused)") }, 89 { 307, CONST_LEN_STR("307 Temporary Redirect") }, 90 { 308, CONST_LEN_STR("308 Permanent Redirect") }, 91 { 400, CONST_LEN_STR("400 Bad Request") }, 92 { 401, CONST_LEN_STR("401 Unauthorized") }, 93 { 402, CONST_LEN_STR("402 Payment Required") }, 94 { 403, CONST_LEN_STR("403 Forbidden") }, 95 { 404, CONST_LEN_STR("404 Not Found") }, 96 { 405, CONST_LEN_STR("405 Method Not Allowed") }, 97 { 406, CONST_LEN_STR("406 Not Acceptable") }, 98 { 407, CONST_LEN_STR("407 Proxy Authentication Required") }, 99 { 408, CONST_LEN_STR("408 Request Timeout") }, 100 { 409, CONST_LEN_STR("409 Conflict") }, 101 { 410, CONST_LEN_STR("410 Gone") }, 102 { 411, CONST_LEN_STR("411 Length Required") }, 103 { 412, CONST_LEN_STR("412 Precondition Failed") }, 104 { 413, CONST_LEN_STR("413 Request Entity Too Large") }, 105 { 414, CONST_LEN_STR("414 Request-URI Too Long") }, 106 { 415, CONST_LEN_STR("415 Unsupported Media Type") }, 107 { 416, CONST_LEN_STR("416 Requested Range Not Satisfiable") }, 108 { 417, CONST_LEN_STR("417 Expectation Failed") }, 109 { 422, CONST_LEN_STR("422 Unprocessable Entity") }, /* WebDAV */ 110 { 423, CONST_LEN_STR("423 Locked") }, /* WebDAV */ 111 { 424, CONST_LEN_STR("424 Failed Dependency") }, /* WebDAV */ 112 { 426, CONST_LEN_STR("426 Upgrade Required") }, /* TLS */ 113 { 500, CONST_LEN_STR("500 Internal Server Error") }, 114 { 501, CONST_LEN_STR("501 Not Implemented") }, 115 { 502, CONST_LEN_STR("502 Bad Gateway") }, 116 { 503, CONST_LEN_STR("503 Service Not Available") }, 117 { 504, CONST_LEN_STR("504 Gateway Timeout") }, 118 { 505, CONST_LEN_STR("505 HTTP Version Not Supported") }, 119 { 507, CONST_LEN_STR("507 Insufficient Storage") }, /* WebDAV */ 120 121 { -1, 0, NULL } 122 }; 123 124 125 static const char *keyvalue_get_value(const keyvalue *kv, int k) { 126 int i; 127 for (i = 0; kv[i].value; i++) { 128 if (kv[i].key == k) return kv[i].value; 129 } 130 return NULL; 131 } 132 133 static int keyvalue_get_key(const keyvalue *kv, const char *s, unsigned int slen) { 134 for (int i = 0; kv[i].vlen; ++i) { 135 if (kv[i].vlen == slen && 0 == memcmp(kv[i].value, s, slen)) 136 return kv[i].key; 137 } 138 return -1; 139 } 140 141 142 const char *get_http_version_name(int i) { 143 return keyvalue_get_value(http_versions, i); 144 } 145 146 const char *get_http_status_name(int i) { 147 return keyvalue_get_value(http_status, i); 148 } 149 150 const char *get_http_method_name(http_method_t i) { 151 return keyvalue_get_value(http_methods, i); 152 } 153 154 int get_http_version_key(const char *s, size_t slen) { 155 return keyvalue_get_key(http_versions, s, (unsigned int)slen); 156 } 157 158 http_method_t get_http_method_key(const char *s, size_t slen) { 159 return (http_method_t)keyvalue_get_key(http_methods, s, (unsigned int)slen); 160 } 161 162 163 void http_status_append(buffer * const b, const int status) { 164 if (200 == status) { /*(short-circuit common case)*/ 165 buffer_append_string_len(b, CONST_STR_LEN("200 OK")); 166 return; 167 } 168 169 const keyvalue * const kv = http_status; 170 int i; 171 for (i = 0; kv[i].key != status && kv[i].vlen; ++i) ; 172 if (kv[i].vlen) { 173 buffer_append_string_len(b, kv[i].value, kv[i].vlen); 174 } 175 else { 176 buffer_append_int(b, status); 177 buffer_append_string_len(b, CONST_STR_LEN(" ")); 178 } 179 } 180 181 void http_method_append(buffer * const b, const http_method_t method) { 182 const keyvalue * const kv = http_methods; 183 int i; 184 for (i = 0; kv[i].key != method && kv[i].vlen; ++i) ; 185 if (kv[i].vlen) { 186 buffer_append_string_len(b, kv[i].value, kv[i].vlen); 187 } 188 } 189