| Index: trunk/willow/src/include/whttp_entity.h |
| — | — | @@ -1,181 +0,0 @@ |
| 2 | | -/* @(#) $Id$ */ |
| 3 | | -/* This source code is in the public domain. */ |
| 4 | | -/* |
| 5 | | - * Willow: Lightweight HTTP reverse-proxy. |
| 6 | | - * whttp_entity: HTTP entity handling. |
| 7 | | - */ |
| 8 | | - |
| 9 | | -#ifndef WHTTP_ENTITY |
| 10 | | -#define WHTTP_ENTITY |
| 11 | | - |
| 12 | | -#if defined __SUNPRO_C || defined __DECC || defined __HP_cc |
| 13 | | -# pragma ident "@(#)$Id$" |
| 14 | | -#endif |
| 15 | | - |
| 16 | | -#include <set> |
| 17 | | -using std::set; |
| 18 | | - |
| 19 | | -#include <zlib.h> |
| 20 | | - |
| 21 | | -#include "whttp.h" |
| 22 | | -#include "whttp_header.h" |
| 23 | | -#include "queue.h" |
| 24 | | - |
| 25 | | -#define ENT_SOURCE_BUFFER 1 |
| 26 | | -#define ENT_SOURCE_FDE 2 |
| 27 | | -#define ENT_SOURCE_NONE 3 |
| 28 | | -#define ENT_SOURCE_FILE 4 |
| 29 | | - |
| 30 | | -#define ENT_ERR_READERR -1 /* read error while parsing headers */ |
| 31 | | -#define ENT_ERR_INVHDR -2 /* invalid headers */ |
| 32 | | -#define ENT_ERR_INVHOST -3 /* invalid Host: */ |
| 33 | | -#define ENT_ERR_INVREQ -4 /* invalid request type */ |
| 34 | | -#define ENT_ERR_2MANY -5 /* too many headers */ |
| 35 | | -#define ENT_ERR_LOOP -6 /* forwarding loop detected */ |
| 36 | | -#define ENT_ERR_INVAE -7 /* invalid accept-encoding */ |
| 37 | | - |
| 38 | | -extern struct request_type supported_reqtypes[]; |
| 39 | | - |
| 40 | | -#define TE_CHUNKED 0x1 /* Chunked encoding */ |
| 41 | | - |
| 42 | | -#define ENT_CHUNKED_OKAY 0x1 |
| 43 | | - |
| 44 | | -extern const char *ent_errors[]; |
| 45 | | - |
| 46 | | -#define MAX_HEADERS 64 /* maximum # of headers to allow */ |
| 47 | | - |
| 48 | | -#define HAS_BODY(x) ((x) != 304) |
| 49 | | - |
| 50 | | -struct http_entity; |
| 51 | | -struct http_client; |
| 52 | | - |
| 53 | | -struct bufferevent; |
| 54 | | - |
| 55 | | -typedef void (*header_cb)(struct http_entity *, void *, int); |
| 56 | | -typedef void (*cache_callback)(const char *, size_t, void *); |
| 57 | | - |
| 58 | | -enum encoding { |
| 59 | | - E_NONE = 0, |
| 60 | | - E_DEFLATE, |
| 61 | | - E_X_DEFLATE, |
| 62 | | - E_GZIP, |
| 63 | | - E_X_GZIP |
| 64 | | -}; |
| 65 | | - |
| 66 | | -struct http_entity : freelist_allocator<http_entity> { |
| 67 | | - http_entity() { |
| 68 | | - he_extraheaders = evbuffer_new(); |
| 69 | | - } |
| 70 | | - |
| 71 | | - ~http_entity() { |
| 72 | | - if (_he_frombuf) { |
| 73 | | - bufferevent_disable(_he_frombuf, EV_READ | EV_WRITE); |
| 74 | | - bufferevent_free(_he_frombuf); |
| 75 | | - } |
| 76 | | - if (_he_tobuf) { |
| 77 | | - bufferevent_disable(_he_tobuf, EV_READ | EV_WRITE); |
| 78 | | - bufferevent_free(_he_tobuf); |
| 79 | | - } |
| 80 | | - if (he_reqstr) |
| 81 | | - wfree(he_reqstr); |
| 82 | | - delete[] _he_hdrbuf; |
| 83 | | - evbuffer_free(he_extraheaders); |
| 84 | | - } |
| 85 | | - |
| 86 | | - struct { |
| 87 | | - /* response-only data */ |
| 88 | | - struct { |
| 89 | | - int status; |
| 90 | | - const char *status_str; |
| 91 | | - } response; |
| 92 | | - /* request-only data */ |
| 93 | | - struct { |
| 94 | | - int reqtype; |
| 95 | | - char *path; |
| 96 | | - int httpmaj, httpmin; |
| 97 | | - /* |
| 98 | | - * Interesting headers. |
| 99 | | - */ |
| 100 | | - char *host; /* Host */ |
| 101 | | - int contlen; /* Content-Length */ |
| 102 | | - set<qvalue> accept_encoding; |
| 103 | | - } request; |
| 104 | | - } he_rdata; |
| 105 | | - |
| 106 | | - char *he_h_pragma; |
| 107 | | - char *he_h_cache_control; |
| 108 | | - char *he_h_transfer_encoding; |
| 109 | | - char *he_h_if_modified_since; |
| 110 | | - char *he_h_last_modified; |
| 111 | | - char *he_reqstr; |
| 112 | | -struct header_list he_headers; |
| 113 | | -struct evbuffer *he_extraheaders; |
| 114 | | - int he_source_type; |
| 115 | | - |
| 116 | | - union { |
| 117 | | - /* buffer data */ |
| 118 | | - struct { |
| 119 | | - const char *addr; |
| 120 | | - int len; |
| 121 | | - } buffer; |
| 122 | | - /* sendfile data */ |
| 123 | | - struct { |
| 124 | | - int fd; |
| 125 | | - size_t size; |
| 126 | | - off_t off; |
| 127 | | - } fd; |
| 128 | | - /* fde data */ |
| 129 | | - struct { |
| 130 | | - struct fde *fde; |
| 131 | | - int len; /* or -1 */ |
| 132 | | - int _wrt; /* amount left to write */ |
| 133 | | - } fde; |
| 134 | | - } he_source; |
| 135 | | - |
| 136 | | - struct { |
| 137 | | - unsigned int cachable:1; |
| 138 | | - unsigned int response:1; |
| 139 | | - unsigned int error:1; |
| 140 | | - unsigned int hdr_only:1; |
| 141 | | - unsigned int eof:1; |
| 142 | | - unsigned int drained:1; |
| 143 | | - unsigned int chunked:1; |
| 144 | | - } he_flags; |
| 145 | | - |
| 146 | | - int he_te; /* transfer encoding */ |
| 147 | | -enum encoding he_encoding; |
| 148 | | - |
| 149 | | - /* |
| 150 | | - * If you want a callback when each piece of data is written, set this. |
| 151 | | - * This only works when sending from an FDE, not when using a buffer |
| 152 | | - * (if you use a buffer, you already have the data...) |
| 153 | | - */ |
| 154 | | - cache_callback he_cache_callback; |
| 155 | | - void *he_cache_callback_data; |
| 156 | | - |
| 157 | | - size_t he_size; |
| 158 | | - |
| 159 | | - /* |
| 160 | | - * This is internal to whttp_entity. Don't touch it. |
| 161 | | - */ |
| 162 | | - void *_he_cbdata; |
| 163 | | - header_cb _he_func; |
| 164 | | -struct fde *_he_target; |
| 165 | | - int _he_state; |
| 166 | | - int _he_chunk_size; /* For chunked encoding */ |
| 167 | | -struct bufferevent *_he_frombuf; |
| 168 | | -struct bufferevent *_he_tobuf; |
| 169 | | - z_stream _he_zbuf; |
| 170 | | - size_t _he_hdroff; /* internal use by entity_read_callback */ |
| 171 | | - char *_he_hdrbuf; /* '' '' */ |
| 172 | | -}; |
| 173 | | - |
| 174 | | - void entity_read_headers (struct http_entity *, header_cb, void *); |
| 175 | | - void entity_send (struct fde *, struct http_entity *, header_cb, void *, int); |
| 176 | | - void entity_set_response (struct http_entity *, int isresp); |
| 177 | | - |
| 178 | | - int qvalue_parse (set<qvalue> &list, const char *header); |
| 179 | | - bool qvalue_remove_best (set<qvalue> &list, qvalue &); |
| 180 | | -enum encoding accept_encoding (const char *ent); |
| 181 | | - |
| 182 | | -#endif |