225 lines
6.9 KiB
C
225 lines
6.9 KiB
C
#ifndef _REQUEST_H_
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#define _REQUEST_H_
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#include "first.h"
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#include "sys-time.h" /* (struct timespec) */
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#include "base_decls.h"
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#include "buffer.h"
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#include "array.h"
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#include "chunk.h"
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#include "http_kv.h"
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struct chunkqueue; /* declaration */
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struct cond_cache_t; /* declaration */
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struct cond_match_t; /* declaration */
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struct stat_cache_entry;/* declaration */
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typedef struct request_config {
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unsigned int http_parseopts;
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uint32_t max_request_field_size;
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const array *mimetypes;
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/* virtual-servers */
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const buffer *document_root;
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const buffer *server_name;
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const buffer *server_tag;
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fdlog_st *errh;
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unsigned int max_request_size;
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unsigned short max_keep_alive_requests;
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unsigned short max_keep_alive_idle;
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unsigned short max_read_idle;
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unsigned short max_write_idle;
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unsigned short stream_request_body;
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unsigned short stream_response_body;
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unsigned char high_precision_timestamps;
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unsigned char allow_http11;
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unsigned char follow_symlink;
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unsigned char etag_flags;
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unsigned char force_lowercase_filenames; /*(case-insensitive file systems)*/
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unsigned char use_xattr;
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unsigned char range_requests;
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unsigned char error_intercept;
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unsigned char h2proto; /*(global setting copied for convenient access)*/
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/* debug */
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unsigned char log_file_not_found;
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unsigned char log_request_header;
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unsigned char log_request_handling;
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unsigned char log_response_header;
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unsigned char log_condition_handling;
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unsigned char log_timeouts;
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unsigned char log_state_handling;
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unsigned char log_request_header_on_error;
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unsigned int bytes_per_second; /* connection bytes/sec limit */
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unsigned int global_bytes_per_second;/*total bytes/sec limit for scope*/
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/* server-wide traffic-shaper
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*
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* each context has the counter which is inited once
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* a second by the global_bytes_per_second config-var
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*
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* as soon as global_bytes_per_second gets below 0
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* the connected conns are "offline" a little bit
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*
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* the problem:
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* we somehow have to lose our "we are writable" signal on the way.
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*
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*/
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off_t *global_bytes_per_second_cnt_ptr; /* */
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const buffer *error_handler;
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const buffer *error_handler_404;
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const buffer *errorfile_prefix;
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fdlog_st *serrh; /* script errh */
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} request_config;
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typedef struct {
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buffer scheme; /* scheme without colon or slashes ( "http" or "https" ) */
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/* authority with optional portnumber ("site.name" or "site.name:8080" ) NOTE: without "username:password@" */
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buffer authority;
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/* path including leading slash ("/" or "/index.html") - urldecoded, and sanitized ( buffer_path_simplify() && buffer_urldecode_path() ) */
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buffer path;
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buffer query; /* querystring ( everything after "?", ie: in "/index.php?foo=1", query is "foo=1" ) */
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} request_uri;
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typedef struct {
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buffer path;
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buffer basedir; /* path = "(basedir)(.*)" */
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buffer doc_root; /* path = doc_root + rel_path */
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buffer rel_path;
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buffer etag;
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} physical;
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typedef struct {
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off_t gw_chunked;
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buffer b;
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int done;
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} response_dechunk;
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/* the order of the items should be the same as they are processed
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* read before write as we use this later e.g. <= CON_STATE_REQUEST_END */
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typedef enum {
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CON_STATE_CONNECT,
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CON_STATE_REQUEST_START,
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CON_STATE_READ,
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CON_STATE_REQUEST_END,
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CON_STATE_READ_POST,
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CON_STATE_HANDLE_REQUEST,
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CON_STATE_RESPONSE_START,
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CON_STATE_WRITE,
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CON_STATE_RESPONSE_END,
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CON_STATE_ERROR,
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CON_STATE_CLOSE
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} request_state_t;
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struct request_st {
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request_state_t state; /*(modules should not modify request state)*/
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int http_status;
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uint32_t h2state; /*(modules should not modify request h2state)*/
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uint32_t h2id;
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int32_t h2_rwin;
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int32_t h2_swin;
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http_method_t http_method;
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http_version_t http_version;
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const plugin *handler_module;
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void **plugin_ctx; /* plugin connection specific config */
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connection *con;
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/* config conditions (internal) */
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uint32_t conditional_is_valid;
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struct cond_cache_t *cond_cache;
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struct cond_match_t *cond_match;
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request_config conf;
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/* request */
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uint32_t rqst_header_len;
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uint64_t rqst_htags;/* bitfield of flagged headers present in request */
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array rqst_headers;
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request_uri uri;
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physical physical;
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array env; /* used to pass lighttpd internal stuff */
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off_t reqbody_length; /* request Content-Length */
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off_t te_chunked;
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off_t resp_body_scratchpad;
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buffer *http_host; /* copy of array value buffer ptr; not alloc'ed */
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const buffer *server_name;
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buffer target;
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buffer target_orig;
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buffer pathinfo;
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buffer server_name_buf;
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/* response */
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uint32_t resp_header_len;
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uint64_t resp_htags; /*bitfield of flagged headers present in response*/
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array resp_headers;
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char resp_body_finished;
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char resp_body_started;
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char resp_send_chunked;
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char resp_decode_chunked;
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char resp_header_repeated;
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char loops_per_request; /* catch endless loops in a single request */
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int8_t keep_alive; /* only request.c can enable it, all other just disable */
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char async_callback;
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buffer *tmp_buf; /* shared; same as srv->tmp_buf */
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response_dechunk *gw_dechunk;
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off_t bytes_written_ckpt; /* used by mod_accesslog */
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off_t bytes_read_ckpt; /* used by mod_accesslog */
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unix_timespec64_t start_hp;
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int error_handler_saved_status; /* error-handler */
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http_method_t error_handler_saved_method; /* error-handler */
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struct chunkqueue write_queue; /* HTTP response queue [ file, mem ] */
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struct chunkqueue read_queue; /* HTTP request queue [ mem ] */
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struct chunkqueue reqbody_queue; /*(might use tempfiles)*/
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struct stat_cache_entry *tmp_sce; /*(value valid only in sequential code)*/
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};
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typedef struct http_header_parse_ctx {
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char *k;
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char *v;
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uint32_t klen;
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uint32_t vlen;
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uint32_t hlen;
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uint8_t pseudo;
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uint8_t scheme;
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uint8_t trailers;
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int8_t id;
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uint32_t max_request_field_size;
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unsigned int http_parseopts;
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} http_header_parse_ctx;
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int http_request_validate_pseudohdrs (request_st * restrict r, int scheme, unsigned int http_parseopts);
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int http_request_parse_header (request_st * restrict r, http_header_parse_ctx * restrict hpctx);
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void http_request_headers_process_h2 (request_st * restrict r, int scheme_port);
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void http_request_headers_process (request_st * restrict r, char * restrict hdrs, const unsigned short * restrict hoff, int scheme_port);
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int http_request_parse_target(request_st *r, int scheme_port);
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int http_request_host_normalize(buffer *b, int scheme_port);
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int http_request_host_policy(buffer *b, unsigned int http_parseopts, int scheme_port);
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int64_t li_restricted_strtoint64 (const char *v, const uint32_t vlen, const char ** const err);
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#endif
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