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annotate src/http/modules/ngx_http_gzip_filter.c @ 133:b27548f540ad

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nginx-0.0.1-2003-09-24-23:51:12 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 24 Sep 2003 19:51:12 +0000
parents
children d57c6835225c
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133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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1
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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3 #include <ngx_core.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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4 #include <ngx_http.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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5
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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6 #include <zlib.h>
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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7
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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8
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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9 typedef struct {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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10 int hunk_size;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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11 int max_hunks;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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12 int no_buffer;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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13 } ngx_http_gzip_conf_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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14
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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15
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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16 typedef struct {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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17 ngx_chain_t *in;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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18 ngx_chain_t *free;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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19 ngx_chain_t *busy;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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20 ngx_chain_t *out;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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21 ngx_chain_t **last_out;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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22 ngx_hunk_t *in_hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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23 ngx_hunk_t *out_hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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24 void *alloc;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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25
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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26 z_stream zstream;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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27 } ngx_http_gzip_ctx_t;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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28
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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29
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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30 static int ngx_http_gzip_filter_init(ngx_cycle_t *cycle);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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31
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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32
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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33 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>
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34 NULL, /* create main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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35 NULL, /* init main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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36
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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37 NULL, /* create server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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38 NULL, /* merge server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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39
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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40 NULL, /* create location configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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41 NULL, /* merge location configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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42 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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43
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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44
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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45 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>
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46 NGX_MODULE,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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47 &ngx_http_gzip_filter_module_ctx, /* module context */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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48 NULL, /* module directives */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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49 NGX_HTTP_MODULE, /* module type */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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50 ngx_http_gzip_filter_init, /* init module */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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51 NULL /* init child */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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52 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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53
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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54
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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55 static const char gzheader[10] =
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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56 { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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57
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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58
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
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59 static int (*next_header_filter) (ngx_http_request_t *r);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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60 static int (*next_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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61
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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62
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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63 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>
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64 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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65 if (r->headers_out.status != NGX_HTTP_OK
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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66 || (ngx_strncasecmp(r->headers_out.content_type->value.data,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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67 "text/", 5) != 0)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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68 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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69 return next_header_filter(r);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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70 }
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71
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72 ngx_http_create_ctx(r, ctx, ngx_http_gzip_filter_module,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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73 sizeof(ngx_http_gzip_filter_ctx_t), NGX_ERROR);
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74
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75 ctx->length = r->headers_out.content_length;
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76 r->headers_out.content_length = -1;
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77
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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78 return next_header_filter(r);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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79 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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80
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81
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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82 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
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83 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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84 ngx_http_gzip_ctx_t *ctx;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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85 ngx_http_gzip_conf_t *conf;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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86
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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87 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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88
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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89 if (ctx == NULL) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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90 next_body_filter(r, in);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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91 }
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92
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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93 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
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94
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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95 if (ctx->alloc == NULL) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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96 #if 0
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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97 ngx_test_null(ctx->alloc, ngx_alloc(200K, r->log), NGX_ERROR);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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98 #else
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99 ctx->alloc = ~NULL;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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100 #endif
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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101 rc = deflateInit2(&ctx->zstream, /**/ 1, Z_DEFLATED,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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102 /**/ -MAX_WBITS, /**/ MAX_MEM_LEVEL - 1,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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103 Z_DEFAULT_STRATEGY);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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104
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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105 if (rc != Z_OK) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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106 ngx_log_error(NGX_LOG_ALERT, r->log, 0,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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107 "deflateInit2() failed: %d", rc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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108 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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109 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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110
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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111 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
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112
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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113 h->type = NGX_HUNK_IN_MEMORY|NGX_HUNK_MEMORY;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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114 h->pos = gzheader;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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115 h->last = h->pos + 10;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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116
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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117 ngx_test_null(ce, ngx_alloc_chain_entry(r->pool),
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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118 ngx_http_gzip_error(ctx));
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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119 ce->hunk = h;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
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120 ce->next = NULL;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
121 ctx->out = ce;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122 ctx->last_out = &ce->next;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124 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
125 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
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 if (in) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129 add_to_chain(ctx->in, in)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132 for ( ;; ) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134 for ( ;; ) {
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 if (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
137 && ctx->zstream->avail_in == 0
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
138 && ctx->in)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
139 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140 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
141 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
142
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 ctx->zstream->next_in = ctx->in_hunk->pos;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 ctx->zstream->avail_in = ctx->in_hunk->last - ctx->in_hunk->pos;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146 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
147 ctx->flush = Z_FINISH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 } else if (ctx->in_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
150 ctx->flush = Z_SYNC_FINISH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154 if (ctx->zstream->avail_out == 0) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155 if (ctx->free) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 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
157 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
158
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159 } else if (ctx->max_hunks < ctx->cur_hunks) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160 ngx_test_null(ctx->out_hunk,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161 ngx_create_temp_hunk(r->pool, conf->size,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162 0, 0),
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163 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
164 ctx->cur_hunks++;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 } else {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 ctx->zstream->next_out = ctx->out_hunk->pos;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171 ctx->zstream->avail_out = conf->size;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 rc = deflate(ctx->zstream, ctx->flush);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175 if (rc != Z_OK && rc != Z_STREAM_END) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176 ngx_log_error(NGX_LOG_ALERT, r->log, 0,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 "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
178 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
179 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 ctx->in_hunk->pos = ctx->zstream->next_in;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183 if (rc == Z_STREAM_END) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 deflateEnd(ctx->zstream);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 ngx_free();
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 if (ctx->zstream->avail_out == 0) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 ctx->out_hunk->last += conf->size;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190 ngx_add_hunk_to_chain(*ctx->last_out, ctx->out_hunk,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 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
192
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193 } else {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194 ctx->out_hunk->last = ctx->zstream->next_out;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 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
197 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
198 ngx_add_hunk_to_chain(*ctx->last_out, ctx->out_hunk,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199 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
200 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
201 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 } else if (ctx->flush == Z_FINISH) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 ctx->out_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
205 ngx_add_hunk_to_chain(*ctx->last_out, ctx->out_hunk,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206 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
207 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 } else if (conf->no_buffer && ctx->in == NULL) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 ngx_add_hunk_to_chain(*ctx->last_out, ctx->out_hunk,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 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
212 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217 if (next_body_filter(r, ctx->out) == NGX_ERROR) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 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
219 }
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 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out);
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 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224
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 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
227 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 #if 0
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 ngx_free(ctx->alloc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230 #endif
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
231
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 return NGX_ERROR;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
235
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
236 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
237 {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
238 next_header_filter = ngx_http_top_header_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
239 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
240
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241 next_body_filter = ngx_http_top_body_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242 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
243
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
244 return NGX_OK;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
245 }