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 98 buffer etag; 99 } physical; 100 101 typedef struct { 102 off_t gw_chunked; 103 buffer b; 104 int done; 105 } response_dechunk; 106 107 /* the order of the items should be the same as they are processed 108 * read before write as we use this later e.g. <= CON_STATE_REQUEST_END */ 109 typedef enum { 110 CON_STATE_CONNECT, 111 CON_STATE_REQUEST_START, 112 CON_STATE_READ, 113 CON_STATE_REQUEST_END, 114 CON_STATE_READ_POST, 115 CON_STATE_HANDLE_REQUEST, 116 CON_STATE_RESPONSE_START, 117 CON_STATE_WRITE, 118 CON_STATE_RESPONSE_END, 119 CON_STATE_ERROR, 120 CON_STATE_CLOSE 121 } request_state_t; 122 123 struct request_st { 124 request_state_t state; /*(modules should not modify request state)*/ 125 int http_status; 126 uint32_t h2state; /*(modules should not modify request h2state)*/ 127 uint32_t h2id; 128 int32_t h2_rwin; 129 int32_t h2_swin; 130 131 http_method_t http_method; 132 http_version_t http_version; 133 134 const plugin *handler_module; 135 void **plugin_ctx; /* plugin connection specific config */ 136 connection *con; 137 138 /* config conditions (internal) */ 139 uint32_t conditional_is_valid; 140 struct cond_cache_t *cond_cache; 141 struct cond_match_t **cond_match; 142 struct cond_match_t *cond_match_data; 143 144 request_config conf; 145 146 /* request */ 147 uint32_t rqst_header_len; 148 uint64_t rqst_htags;/* bitfield of flagged headers present in request */ 149 array rqst_headers; 150 151 request_uri uri; 152 physical physical; 153 array env; /* used to pass lighttpd internal stuff */ 154 155 off_t reqbody_length; /* request Content-Length */ 156 off_t te_chunked; 157 off_t resp_body_scratchpad; 158 159 buffer *http_host; /* copy of array value buffer ptr; not alloc'ed */ 160 const buffer *server_name; 161 162 buffer target; 163 buffer target_orig; 164 165 buffer pathinfo; 166 buffer server_name_buf; 167 168 /* response */ 169 uint32_t resp_header_len; 170 uint64_t resp_htags; /*bitfield of flagged headers present in response*/ 171 array resp_headers; 172 char resp_body_finished; 173 char resp_body_started; 174 char resp_send_chunked; 175 char resp_decode_chunked; 176 char resp_header_repeated; 177 178 char loops_per_request; /* catch endless loops in a single request */ 179 int8_t keep_alive; /* only request.c can enable it, all other just disable */ 180 char async_callback; 181 182 buffer *tmp_buf; /* shared; same as srv->tmp_buf */ 183 response_dechunk *gw_dechunk; 184 185 off_t bytes_written_ckpt; /* used by mod_accesslog */ 186 off_t bytes_read_ckpt; /* used by mod_accesslog */ 187 unix_timespec64_t start_hp; 188 189 int error_handler_saved_status; /* error-handler */ 190 http_method_t error_handler_saved_method; /* error-handler */ 191 192 struct chunkqueue write_queue; /* HTTP response queue [ file, mem ] */ 193 struct chunkqueue read_queue; /* HTTP request queue [ mem ] */ 194 struct chunkqueue reqbody_queue; /*(might use tempfiles)*/ 195 196 struct stat_cache_entry *tmp_sce; /*(value valid only in sequential code)*/ 197 int cond_captures; 198 }; 199 200 201 typedef struct http_header_parse_ctx { 202 char *k; 203 char *v; 204 uint32_t klen; 205 uint32_t vlen; 206 uint32_t hlen; 207 uint8_t pseudo; 208 uint8_t scheme; 209 uint8_t trailers; 210 int8_t id; 211 uint32_t max_request_field_size; 212 unsigned int http_parseopts; 213 } http_header_parse_ctx; 214 215 216 int http_request_validate_pseudohdrs (request_st * restrict r, int scheme, unsigned int http_parseopts); 217 int http_request_parse_header (request_st * restrict r, http_header_parse_ctx * restrict hpctx); 218 void http_request_headers_process_h2 (request_st * restrict r, int scheme_port); 219 void http_request_headers_process (request_st * restrict r, char * restrict hdrs, const unsigned short * restrict hoff, int scheme_port); 220 int http_request_parse_target(request_st *r, int scheme_port); 221 int http_request_host_normalize(buffer *b, int scheme_port); 222 int http_request_host_policy(buffer *b, unsigned int http_parseopts, int scheme_port); 223 224 int64_t li_restricted_strtoint64 (const char *v, const uint32_t vlen, const char ** const err); 225 226 #endif 227