nginx: src/http/modules/ngx_http_gzip

annotate src/http/modules/ngx_http_gzip_filter.c @ 159:981e4af2a425

nginx-0.0.1-2003-10-24-20:10:38 import

author	Igor Sysoev <igor@sysoev.ru>
date	Fri, 24 Oct 2003 16:10:38 +0000
parents	d377ee423603
children	e7e094d34162

rev	line source
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	2 #include <ngx_config.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	3 #include <ngx_core.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	4 #include <ngx_http.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	5
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	6 #include <zlib.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	7
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	8
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	9 typedef struct {
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	10 int enable;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	11 ngx_bufs_t bufs;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	12 int level;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	13 int wbits;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	14 int memlevel;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	15 int no_buffer;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	16 } ngx_http_gzip_conf_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	17
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	18
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	19 typedef struct {
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	20 ngx_chain_t *in;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	21 ngx_chain_t *free;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	22 ngx_chain_t *busy;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	23 ngx_chain_t *out;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	24 ngx_chain_t **last_out;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	25 ngx_hunk_t *in_hunk;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	26 ngx_hunk_t *out_hunk;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	27 int hunks;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	28
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	29 off_t length;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	30
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	31 void *preallocated;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	32 char *free_mem;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	33 int allocated;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	34
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	35 unsigned flush:4;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	36 unsigned redo:1;
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	37
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	38 u_int crc32;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	39 z_stream zstream;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	40 ngx_http_request_t *request;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	41 } ngx_http_gzip_ctx_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	42
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	43
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	44 static void ngx_http_gzip_filter_alloc(void opaque, u_int items,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	45 u_int size);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	46 static void ngx_http_gzip_filter_free(void opaque, void address);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	47
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	48 ngx_inline static int ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	49 static int ngx_http_gzip_filter_init(ngx_cycle_t *cycle);
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	50 static void ngx_http_gzip_create_conf(ngx_conf_t cf);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	51 static char ngx_http_gzip_merge_conf(ngx_conf_t cf,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	52 void parent, void child);
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	53 static char ngx_http_gzip_set_window(ngx_conf_t cf, void post, void data);
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	54 static char ngx_http_gzip_set_hash(ngx_conf_t cf, void post, void data);
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	55
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	56
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	57 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	58 ngx_conf_check_num_bounds, 1, 9
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	59 };
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	60
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	61 static ngx_conf_post_handler_pt ngx_http_gzip_set_window_p =
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	62 ngx_http_gzip_set_window;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	63 static ngx_conf_post_handler_pt ngx_http_gzip_set_hash_p =
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	64 ngx_http_gzip_set_hash;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	65
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	66
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	67
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	68 static ngx_command_t ngx_http_gzip_filter_commands[] = {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	69
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	70 {ngx_string("gzip"),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	71 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_FLAG,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	72 ngx_conf_set_flag_slot,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	73 NGX_HTTP_LOC_CONF_OFFSET,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	74 offsetof(ngx_http_gzip_conf_t, enable),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	75 NULL},
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	76
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	77 {ngx_string("gzip_buffers"),
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	78 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE2,
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	79 ngx_conf_set_bufs_slot,
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	80 NGX_HTTP_LOC_CONF_OFFSET,
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	81 offsetof(ngx_http_gzip_conf_t, bufs),
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	82 NULL},
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	83
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	84 {ngx_string("gzip_comp_level"),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	85 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	86 ngx_conf_set_num_slot,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	87 NGX_HTTP_LOC_CONF_OFFSET,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	88 offsetof(ngx_http_gzip_conf_t, level),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	89 &ngx_http_gzip_comp_level_bounds},
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	90
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	91 {ngx_string("gzip_window"),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	92 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	93 ngx_conf_set_size_slot,
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	94 NGX_HTTP_LOC_CONF_OFFSET,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	95 offsetof(ngx_http_gzip_conf_t, wbits),
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	96 &ngx_http_gzip_set_window_p},
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	97
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	98 {ngx_string("gzip_hash"),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	99 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	100 ngx_conf_set_size_slot,
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	101 NGX_HTTP_LOC_CONF_OFFSET,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	102 offsetof(ngx_http_gzip_conf_t, memlevel),
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	103 &ngx_http_gzip_set_hash_p},
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	104
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	105 {ngx_string("gzip_no_buffer"),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	106 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_FLAG,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	107 ngx_conf_set_flag_slot,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	108 NGX_HTTP_LOC_CONF_OFFSET,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	109 offsetof(ngx_http_gzip_conf_t, no_buffer),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	110 NULL},
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	111
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	112 ngx_null_command
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	113 };
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	114
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	115
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	116 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	117 NULL, /* create main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	118 NULL, /* init main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	119
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	120 NULL, /* create server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	121 NULL, /* merge server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	122
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	123 ngx_http_gzip_create_conf, /* create location configuration */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	124 ngx_http_gzip_merge_conf, /* merge location configuration */
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	125 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	126
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	127
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	128 ngx_module_t ngx_http_gzip_filter_module = {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	129 NGX_MODULE,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	130 &ngx_http_gzip_filter_module_ctx, /* module context */
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	131 ngx_http_gzip_filter_commands, /* module directives */
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	132 NGX_HTTP_MODULE, /* module type */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	133 ngx_http_gzip_filter_init, /* init module */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	134 NULL /* init child */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	135 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	136
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	137
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	138 static u_char gzheader[10] = { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 };
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	139
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	140 #if (HAVE_LITTLE_ENDIAN)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	141
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	142 struct gztrailer {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	143 u_int crc32;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	144 u_int zlen;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	145 };
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	146
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	147 #else /* HAVE_BIG_ENDIAN */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	148
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	149 struct gztrailer {
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	150 u_char crc32[4];
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	151 u_char zlen[4];
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	152 };
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	153
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	154 #endif
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	155
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	157 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	158 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	159
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	160
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	161 static int ngx_http_gzip_header_filter(ngx_http_request_t *r)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	162 {
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	163 ngx_http_gzip_ctx_t *ctx;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	164 ngx_http_gzip_conf_t *conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	165
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	166 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	167
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	168 if (!conf->enable
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	169 \|\| r->headers_out.status != NGX_HTTP_OK
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	170 \|\| r->header_only
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	171 \|\| r->main
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	172 /* TODO: conf->http_version */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	173 \|\| (r->headers_out.content_encoding
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	174 && r->headers_out.content_encoding->value.len)
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	175 \|\| r->headers_in.accept_encoding == NULL
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	176 \|\| ngx_strstr(r->headers_in.accept_encoding->value.data, "gzip") == NULL
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	177 )
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	178 {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	179 return ngx_http_next_header_filter(r);
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	180 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	181
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	182 /* TODO: "text/html" -> custom types */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	183 if (r->headers_out.content_type
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	184 && ngx_strncasecmp(r->headers_out.content_type->value.data,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	185 "text/html", 5) != 0)
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	186 {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	187 return ngx_http_next_header_filter(r);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	188 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	189
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	190 ngx_http_create_ctx(r, ctx, ngx_http_gzip_filter_module,
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	191 sizeof(ngx_http_gzip_ctx_t), NGX_ERROR);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	192 ctx->request = r;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	193
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	194 ngx_test_null(r->headers_out.content_encoding,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	195 ngx_push_table(r->headers_out.headers),
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	196 NGX_ERROR);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	197
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	198 r->headers_out.content_encoding->key.len = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	199 r->headers_out.content_encoding->key.data = NULL;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	200 r->headers_out.content_encoding->value.len = 4;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	201 r->headers_out.content_encoding->value.data = "gzip";
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	202
153 c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import Igor Sysoev <igor@sysoev.ru> parents: 144 diff changeset	203 ctx->length = r->headers_out.content_length_n;
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import Igor Sysoev <igor@sysoev.ru> parents: 144 diff changeset	204 r->headers_out.content_length_n = -1;
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import Igor Sysoev <igor@sysoev.ru> parents: 144 diff changeset	205 r->headers_out.content_length = NULL;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	206 r->filter \|= NGX_HTTP_FILTER_NEED_IN_MEMORY;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	207
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	208 return ngx_http_next_header_filter(r);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	209 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	210
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	211
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	212 static int ngx_http_gzip_body_filter(ngx_http_request_t r, ngx_chain_t in)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	213 {
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	214 int rc, wbits, memlevel, zin, zout, last;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	215 struct gztrailer *trailer;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	216 ngx_hunk_t *h;
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	217 ngx_chain_t *cl;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	218 ngx_http_gzip_ctx_t *ctx;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	219 ngx_http_gzip_conf_t *conf;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	220
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	221 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	222
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	223 if (ctx == NULL) {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	224 return ngx_http_next_body_filter(r, in);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	225 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	226
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	227 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	228
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	229 if (ctx->preallocated == NULL) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	230 wbits = conf->wbits;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	231 memlevel = conf->memlevel;
136 da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	232
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	233 if (ctx->length > 0) {
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	234
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	235 /* the actual zlib window size is smaller by 262 bytes */
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	236
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	237 while (ctx->length < ((1 << (wbits - 1)) - 262)) {
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	238 wbits--;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	239 memlevel--;
136 da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	240 }
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	241 }
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	242
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	243 /*
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	244 * We preallocate a memory for zlib in one hunk (200K-400K), this
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	245 * dicreases a number of malloc() and free() calls and also probably
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	246 * dicreases a number of syscalls.
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	247 * Besides we free() this memory as soon as the gzipping will complete
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	248 * and do not wait while a whole response will be sent to a client.
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	249 *
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	250 * 8K is for zlib deflate_state (~6K).
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	251 *
157 70b36c805682 nginx-0.0.1-2003-10-23-19:54:19 import Igor Sysoev <igor@sysoev.ru> parents: 156 diff changeset	252 * TODO: 64-bit, round to PAGE_SIZE, autoconf of deflate_state size
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	253 */
136 da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	254
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	255 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9));
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	256
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	257 ngx_test_null(ctx->preallocated, ngx_palloc(r->pool, ctx->allocated),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	258 NGX_ERROR);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	259 ctx->free_mem = ctx->preallocated;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	260
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	261 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	262 ctx->zstream.zfree = ngx_http_gzip_filter_free;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	263 ctx->zstream.opaque = ctx;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	264
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	265 rc = deflateInit2(&ctx->zstream, conf->level, Z_DEFLATED,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	266 -wbits, memlevel, Z_DEFAULT_STRATEGY);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	267
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	268 if (rc != Z_OK) {
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	269 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	270 "deflateInit2() failed: %d", rc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	271 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	272 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	273
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	274 ngx_test_null(h, ngx_calloc_hunk(r->pool), ngx_http_gzip_error(ctx));
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	275
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	276 h->type = NGX_HUNK_IN_MEMORY\|NGX_HUNK_MEMORY;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	277 h->pos = (char *) gzheader;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	278 h->last = h->pos + 10;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	279
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	280 ngx_alloc_link_and_set_hunk(cl, h, r->pool, ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	281 ctx->out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	282 ctx->last_out = &cl->next;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	283
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	284 ctx->crc32 = crc32(0L, Z_NULL, 0);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	285 ctx->flush = Z_NO_FLUSH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	286 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	287
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	288 if (in) {
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	289 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	290 return ngx_http_gzip_error(ctx);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	291 }
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	292 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	293
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	294 last = NGX_NONE;
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	295
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	296 for ( ;; ) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	297
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	298 for ( ;; ) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	299
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	300 /* is there a data to gzip ? */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	301
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	302 if (ctx->zstream.avail_in == 0
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	303 && ctx->flush == Z_NO_FLUSH
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	304 && !ctx->redo) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	305
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	306 if (ctx->in == NULL) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	307 break;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	308 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	309
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	310 ctx->in_hunk = ctx->in->hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	311 ctx->in = ctx->in->next;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	312
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	313 ctx->zstream.next_in = (u_char *) ctx->in_hunk->pos;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	314 ctx->zstream.avail_in = ctx->in_hunk->last - ctx->in_hunk->pos;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	315
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	316 if (ctx->in_hunk->type & NGX_HUNK_LAST) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	317 ctx->flush = Z_FINISH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	318
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	319 } else if (ctx->in_hunk->type & NGX_HUNK_FLUSH) {
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	320 ctx->flush = Z_SYNC_FLUSH;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	321 }
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	322
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	323 if (ctx->zstream.avail_in == 0) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	324 if (ctx->flush == Z_NO_FLUSH) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	325 continue;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	326 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	327
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	328 } else {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	329 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	330 ctx->zstream.avail_in);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	331 }
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	332 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	333
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	334 /* is there a space for the gzipped data ? */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	335
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	336 if (ctx->zstream.avail_out == 0) {
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	337 if (ctx->free) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	338 ctx->out_hunk = ctx->free->hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	339 ctx->free = ctx->free->next;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	340
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	341 } else if (ctx->hunks < conf->bufs.num) {
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	342 ngx_test_null(ctx->out_hunk,
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	343 ngx_create_temp_hunk(r->pool, conf->bufs.size,
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	344 0, 0),
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	345 ngx_http_gzip_error(ctx));
154 eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import Igor Sysoev <igor@sysoev.ru> parents: 153 diff changeset	346 ctx->out_hunk->tag = (ngx_hunk_tag_t)
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import Igor Sysoev <igor@sysoev.ru> parents: 153 diff changeset	347 &ngx_http_gzip_filter_module;
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	348 ctx->out_hunk->type \|= NGX_HUNK_RECYCLED;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	349 ctx->hunks++;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	350
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	351 } else {
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	352 break;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	353 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	354
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	355 ctx->zstream.next_out = (u_char *) ctx->out_hunk->pos;
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	356 ctx->zstream.avail_out = conf->bufs.size;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	357 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	358
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	359 ngx_log_debug(r->connection->log, "deflate(): %08x %08x %d %d %d" _
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	360 ctx->zstream.next_in _ ctx->zstream.next_out _
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	361 ctx->zstream.avail_in _ ctx->zstream.avail_out _ ctx->flush);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	362
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	363 rc = deflate(&ctx->zstream, ctx->flush);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	364 if (rc != Z_OK && rc != Z_STREAM_END) {
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	365 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	366 "deflate() failed: %d, %d", ctx->flush, rc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	367 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	368 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	369
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	370 ngx_log_debug(r->connection->log, "DEFLATE(): %08x %08x %d %d %d" _
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	371 ctx->zstream.next_in _ ctx->zstream.next_out _
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	372 ctx->zstream.avail_in _ ctx->zstream.avail_out _ rc);
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	373
136 da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	374 ctx->in_hunk->pos = (char *) ctx->zstream.next_in;
159 981e4af2a425 nginx-0.0.1-2003-10-24-20:10:38 import Igor Sysoev <igor@sysoev.ru> parents: 158 diff changeset	375 ctx->out_hunk->last = (char *) ctx->zstream.next_out;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	376
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	377 if (ctx->zstream.avail_out == 0) {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	378 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	379 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	380 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	381 ctx->last_out = &cl->next;
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	382 ctx->redo = 1;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	383
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	384 } else {
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	385 ctx->redo = 0;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	386
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	387 if (ctx->flush == Z_SYNC_FLUSH) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	388 ctx->out_hunk->type \|= NGX_HUNK_FLUSH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	389 ctx->flush = Z_NO_FLUSH;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	390
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	391 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	392 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	393 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	394 ctx->last_out = &cl->next;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	395
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	396 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	397
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	398 } else if (ctx->flush == Z_FINISH) {
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	399
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	400 /* rc == Z_STREAM_END */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	401
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	402 zin = ctx->zstream.total_in;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	403 zout = 10 + ctx->zstream.total_out + 8;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	404
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	405 rc = deflateEnd(&ctx->zstream);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	406 if (rc != Z_OK) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	407 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	408 "deflateEnd() failed: %d", rc);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	409 return ngx_http_gzip_error(ctx);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	410 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	411
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	412 ngx_pfree(r->pool, ctx->preallocated);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	413
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	414 ctx->flush = Z_NO_FLUSH;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	415
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	416 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	417 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	418 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	419 ctx->last_out = &cl->next;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	420
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	421 if (ctx->zstream.avail_out >= 8) {
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	422 trailer = (struct gztrailer *) ctx->out_hunk->last;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	423 ctx->out_hunk->type \|= NGX_HUNK_LAST;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	424 ctx->out_hunk->last += 8;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	425
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	426 } else {
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	427 ngx_test_null(h,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	428 ngx_create_temp_hunk(r->pool, 8, 0, 0),
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	429 ngx_http_gzip_error(ctx));
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	430
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	431 h->type \|= NGX_HUNK_LAST;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	432
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	433 ngx_alloc_link_and_set_hunk(cl, h, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	434 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	435 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	436 ctx->last_out = &cl->next;
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	437 trailer = (struct gztrailer *) h->pos;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	438 h->last += 8;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	439 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	440
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	441 #if (HAVE_LITTLE_ENDIAN)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	442 trailer->crc32 = ctx->crc32;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	443 trailer->zlen = zin;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	444 #else
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	445 /* STUB */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	446 #endif
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	447
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	448 ctx->zstream.avail_in = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	449 ctx->zstream.avail_out = 0;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	450
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	451 ngx_http_delete_ctx(r, ngx_http_gzip_filter_module);
136 da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import Igor Sysoev <igor@sysoev.ru> parents: 135 diff changeset	452
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	453 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	454
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	455 } else if (conf->no_buffer && ctx->in == NULL) {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	456 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	457 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	458 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	459 ctx->last_out = &cl->next;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	460
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	461 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	462 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	463 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	464 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	465
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	466 if (ctx->out == NULL && last != NGX_NONE) {
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	467 return last;
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	468 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	469
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	470 last = ngx_http_next_body_filter(r, ctx->out);
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	471
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	472 if (last == NGX_ERROR) {
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	473 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	474 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	475
154 eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import Igor Sysoev <igor@sysoev.ru> parents: 153 diff changeset	476 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out,
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import Igor Sysoev <igor@sysoev.ru> parents: 153 diff changeset	477 (ngx_hunk_tag_t) &ngx_http_gzip_filter_module);
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	478 ctx->last_out = &ctx->out;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	479 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	480 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	481
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	482
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	483 static void ngx_http_gzip_filter_alloc(void opaque, u_int items, u_int size)
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	484 {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	485 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	486
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	487 int alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	488 void *p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	489
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	490
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	491 alloc = items * size;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	492 if (alloc % 512 != 0) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	493
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	494 /* we allocate 8K for zlib deflate_state (~6K) */
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	495 /* TODO: PAGE_SIZE */
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	496
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	497 alloc = (alloc + 4095) & ~4095;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	498 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	499
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	500 if (alloc <= ctx->allocated) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	501 p = ctx->free_mem;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	502 ctx->free_mem += alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	503 ctx->allocated -= alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	504
159 981e4af2a425 nginx-0.0.1-2003-10-24-20:10:38 import Igor Sysoev <igor@sysoev.ru> parents: 158 diff changeset	505 #if 1
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	506 ngx_log_debug(ctx->request->connection->log, "ALLOC: %d:%d:%d:%08X" _
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	507 items _ size _ alloc _ p);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	508 #endif
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	509
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	510 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	511 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	512
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	513 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	514 "gzip filter failed to use preallocated memory: %d of %d",
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	515 items * size, ctx->allocated);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	516
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	517 p = ngx_palloc(ctx->request->pool, items * size);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	518
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	519 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	520 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	521
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	522
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	523 static void ngx_http_gzip_filter_free(void opaque, void address)
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	524 {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	525 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	526
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	527 #if 0
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	528 ngx_log_debug(ctx->request->connection->log, "FREE: %08X" _ address);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	529 #endif
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	530 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	531
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	532
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	533 ngx_inline static int ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	534 {
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	535 deflateEnd(&ctx->zstream);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	536
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	537 ngx_pfree(ctx->request->pool, ctx->preallocated);
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	538
135 e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	539 ctx->zstream.avail_in = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	540 ctx->zstream.avail_out = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import Igor Sysoev <igor@sysoev.ru> parents: 134 diff changeset	541
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	542 return NGX_ERROR;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	543 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	544
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	545
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	546 static int ngx_http_gzip_filter_init(ngx_cycle_t *cycle)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	547 {
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	548 ngx_http_next_header_filter = ngx_http_top_header_filter;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	549 ngx_http_top_header_filter = ngx_http_gzip_header_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	550
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 154 diff changeset	551 ngx_http_next_body_filter = ngx_http_top_body_filter;
133 b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	552 ngx_http_top_body_filter = ngx_http_gzip_body_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	553
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	554 return NGX_OK;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	555 }
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	556
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	557
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	558 static void ngx_http_gzip_create_conf(ngx_conf_t cf)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	559 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	560 ngx_http_gzip_conf_t *conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	561
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	562 ngx_test_null(conf,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	563 ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t)),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	564 NGX_CONF_ERROR);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	565
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	566 conf->enable = NGX_CONF_UNSET;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	567 /* conf->bufs.num = 0; */
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	568 conf->no_buffer = NGX_CONF_UNSET;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	569 conf->level = NGX_CONF_UNSET;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	570 conf->wbits = NGX_CONF_UNSET;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	571 conf->memlevel = NGX_CONF_UNSET;
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	572
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	573 return conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	574 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	575
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	576
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	577 static char ngx_http_gzip_merge_conf(ngx_conf_t cf,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	578 void parent, void child)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	579 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	580 ngx_http_gzip_conf_t *prev = parent;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	581 ngx_http_gzip_conf_t *conf = child;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	582
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	583 ngx_conf_merge_value(conf->enable, prev->enable, 0);
141 656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import Igor Sysoev <igor@sysoev.ru> parents: 136 diff changeset	584 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 4,
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	585 /* STUB: PAGE_SIZE */ 4096);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	586 ngx_conf_merge_value(conf->level, prev->level, 1);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	587 ngx_conf_merge_value(conf->wbits, prev->wbits, MAX_WBITS);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	588 ngx_conf_merge_value(conf->memlevel, prev->memlevel, MAX_MEM_LEVEL - 1);
134 d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	589 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	590
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	591 return NGX_CONF_OK;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import Igor Sysoev <igor@sysoev.ru> parents: 133 diff changeset	592 }
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	593
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	594
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	595 static char ngx_http_gzip_set_window(ngx_conf_t cf, void post, void data)
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	596 {
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	597 int *np = data;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	598
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	599 int wbits, wsize;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	600
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	601
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	602 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "WBITS: %d", *np);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	603
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	604 wbits = 15;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	605 for (wsize = 32 * 1024; wsize > 256; wsize >>= 1) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	606
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	607 if (wsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	608 *np = wbits;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	609 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "WBITS: %d", *np);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	610 return NULL;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	611 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	612
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	613 wbits--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	614 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	615
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	616 return "must be 512, 1k, 2k, 4k, 8k, 16k, or 32k";
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	617 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	618
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	619
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	620 static char ngx_http_gzip_set_hash(ngx_conf_t cf, void post, void data)
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	621 {
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	622 int *np = data;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	623
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	624 int memlevel, hsize;
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	625
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	626
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	627 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "MEMLEVEL: %d", *np);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	628
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	629 memlevel = 9;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	630 for (hsize = 128 * 1024; hsize > 256; hsize >>= 1) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	631
158 d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	632 if (hsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	633 *np = memlevel;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import Igor Sysoev <igor@sysoev.ru> parents: 157 diff changeset	634 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "MEMLEVEL: %d", *np);
156 afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	635 return NULL;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	636 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	637
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	638 memlevel--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	639 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	640
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	641 return "must be 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, or 128k";
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	642 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_gzip_filter.c @ 159:981e4af2a425