1 #ifndef _REQUEST_H_ 2 #define _REQUEST_H_ 3 #include "first.h" 4 5 #include "sys-time.h" /* (struct timespec) */ 6 7 #include "base_decls.h" 8 #include "buffer.h" 9 #include "array.h" 10 #include "chunk.h" 11 #include "http_kv.h" 12 13 struct chunkqueue; /* declaration */ 14 struct cond_cache_t; /* declaration */ 15 struct cond_match_t; /* declaration */ 16 struct stat_cache_entry;/* declaration */ 17 18 typedef struct request_config { 19 unsigned int http_parseopts; 20 uint32_t max_request_field_size; 21 const array *mimetypes; 22 23 /* virtual-servers */ 24 const buffer *document_root; 25 const buffer *server_name; 26 const buffer *server_tag; 27 fdlog_st *errh; 28 29 unsigned int max_request_size; 30 unsigned short max_keep_alive_requests; 31 unsigned short max_keep_alive_idle; 32 unsigned short max_read_idle; 33 unsigned short max_write_idle; 34 unsigned short stream_request_body; 35 unsigned short stream_response_body; 36 unsigned char high_precision_timestamps; 37 unsigned char allow_http11; 38 unsigned char follow_symlink; 39 unsigned char etag_flags; 40 unsigned char force_lowercase_filenames; /*(case-insensitive file systems)*/ 41 unsigned char use_xattr; 42 unsigned char range_requests; 43 unsigned char error_intercept; 44 45 unsigned char h2proto; /*(global setting copied for convenient access)*/ 46 47 /* debug */ 48 unsigned char log_file_not_found; 49 unsigned char log_request_header; 50 unsigned char log_request_handling; 51 unsigned char log_response_header; 52 unsigned char log_condition_handling; 53 unsigned char log_timeouts; 54 unsigned char log_state_handling; 55 unsigned char log_request_header_on_error; 56 57 unsigned int bytes_per_second; /* connection bytes/sec limit */ 58 unsigned int global_bytes_per_second;/*total bytes/sec limit for scope*/ 59 60 /* server-wide traffic-shaper 61 * 62 * each context has the counter which is inited once 63 * a second by the global_bytes_per_second config-var 64 * 65 * as soon as global_bytes_per_second gets below 0 66 * the connected conns are "offline" a little bit 67 * 68 * the problem: 69 * we somehow have to lose our "we are writable" signal on the way. 70 * 71 */ 72 off_t *global_bytes_per_second_cnt_ptr; /* */ 73 74 const buffer *error_handler; 75 const buffer *error_handler_404; 76 const buffer *errorfile_prefix; 77 fdlog_st *serrh; /* script errh */ 78 } request_config; 79 80 typedef struct { 81 buffer scheme; /* scheme without colon or slashes ( "http" or "https" ) */ 82 83 /* authority with optional portnumber ("site.name" or "site.name:8080" ) NOTE: without "username:password@" */ 84 buffer authority; 85 86 /* path including leading slash ("/" or "/index.html") - urldecoded, and sanitized ( buffer_path_simplify() && buffer_urldecode_path() ) */ 87 buffer path; 88 buffer query; /* querystring ( everything after "?", ie: in "/index.php?foo=1", query is "foo=1" ) */ 89 } request_uri; 90 91 typedef struct { 92 buffer path; 93 buffer basedir; /* path = "(basedir)(.*)" */ 94 95 buffer doc_root; /* path = doc_root + rel_path */ 96 buffer rel_path; 97 } physical; 98 99 typedef struct { 100 off_t gw_chunked; 101 buffer b; 102 int done; 103 } response_dechunk; 104 105 /* the order of the items should be the same as they are processed 106 * read before write as we use this later e.g. <= CON_STATE_REQUEST_END */ 107 typedef enum { 108 CON_STATE_CONNECT, 109 CON_STATE_REQUEST_START, 110 CON_STATE_READ, 111 CON_STATE_REQUEST_END, 112 CON_STATE_READ_POST, 113 CON_STATE_HANDLE_REQUEST, 114 CON_STATE_RESPONSE_START, 115 CON_STATE_WRITE, 116 CON_STATE_RESPONSE_END, 117 CON_STATE_ERROR, 118 CON_STATE_CLOSE 119 } request_state_t; 120 121 struct request_st { 122 request_state_t state; /*(modules should not modify request state)*/ 123 int http_status; 124 uint32_t h2state; /*(modules should not modify request h2state)*/ 125 uint32_t h2id; 126 int32_t h2_rwin; 127 int32_t h2_swin; 128 129 http_method_t http_method; 130 http_version_t http_version; 131 132 const plugin *handler_module; 133 void **plugin_ctx; /* plugin connection specific config */ 134 connection *con; 135 136 /* config conditions (internal) */ 137 uint32_t conditional_is_valid; 138 struct cond_cache_t *cond_cache; 139 struct cond_match_t **cond_match; 140 struct cond_match_t *cond_match_data; 141 142 request_config conf; 143 144 /* request */ 145 uint32_t rqst_header_len; 146 uint64_t rqst_htags;/* bitfield of flagged headers present in request */ 147 array rqst_headers; 148 149 request_uri uri; 150 physical physical; 151 array env; /* used to pass lighttpd internal stuff */ 152 153 off_t reqbody_length; /* request Content-Length */ 154 off_t te_chunked; 155 off_t resp_body_scratchpad; 156 157 buffer *http_host; /* copy of array value buffer ptr; not alloc'ed */ 158 const buffer *server_name; 159 160 buffer target; 161 buffer target_orig; 162 163 buffer pathinfo; 164 buffer server_name_buf; 165 166 /* response */ 167 uint32_t resp_header_len; 168 uint64_t resp_htags; /*bitfield of flagged headers present in response*/ 169 array resp_headers; 170 char resp_body_finished; 171 char resp_body_started; 172 char resp_send_chunked; 173 char resp_decode_chunked; 174 char resp_header_repeated; 175 176 char loops_per_request; /* catch endless loops in a single request */ 177 int8_t keep_alive; /* only request.c can enable it, all other just disable */ 178 char async_callback; 179 180 buffer *tmp_buf; /* shared; same as srv->tmp_buf */ 181 response_dechunk *gw_dechunk; 182 183 off_t bytes_written_ckpt; /* used by mod_accesslog */ 184 off_t bytes_read_ckpt; /* used by mod_accesslog */ 185 unix_timespec64_t start_hp; 186 187 int error_handler_saved_status; /* error-handler */ 188 http_method_t error_handler_saved_method; /* error-handler */ 189 190 struct chunkqueue write_queue; /* HTTP response queue [ file, mem ] */ 191 struct chunkqueue read_queue; /* HTTP request queue [ mem ] */ 192 struct chunkqueue reqbody_queue; /*(might use tempfiles)*/ 193 194 struct stat_cache_entry *tmp_sce; /*(value valid only in sequential code)*/ 195 int cond_captures; 196 }; 197 198 199 typedef struct http_header_parse_ctx { 200 char *k; 201 char *v; 202 uint32_t klen; 203 uint32_t vlen; 204 uint32_t hlen; 205 uint8_t pseudo; 206 uint8_t scheme; 207 uint8_t trailers; 208 int8_t id; 209 uint32_t max_request_field_size; 210 unsigned int http_parseopts; 211 } http_header_parse_ctx; 212 213 214 int http_request_validate_pseudohdrs (request_st * restrict r, int scheme, unsigned int http_parseopts); 215 int http_request_parse_header (request_st * restrict r, http_header_parse_ctx * restrict hpctx); 216 void http_request_headers_process_h2 (request_st * restrict r, int scheme_port); 217 void http_request_headers_process (request_st * restrict r, char * restrict hdrs, const unsigned short * restrict hoff, int scheme_port); 218 int http_request_parse_target(request_st *r, int scheme_port); 219 int http_request_host_normalize(buffer *b, int scheme_port); 220 int http_request_host_policy(buffer *b, unsigned int http_parseopts, int scheme_port); 221 222 int64_t li_restricted_strtoint64 (const char *v, const uint32_t vlen, const char ** const err); 223 224 #endif 225