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50
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 #if 0
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13
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14 typedef struct {
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15 ngx_buf_t *buf;
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16 size_t size;
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17 ngx_pool_t *pool;
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18 size_t alloc_size;
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19 ngx_chain_t **last_out;
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20 } ngx_http_autoindex_ctx_t;
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21
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22 #endif
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23
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24
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25 typedef struct {
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26 ngx_str_t name;
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74
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27 size_t utf_len;
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28 ngx_uint_t escape;
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29 ngx_uint_t dir;
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30 time_t mtime;
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31 off_t size;
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32 } ngx_http_autoindex_entry_t;
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33
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34
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35 typedef struct {
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36 ngx_flag_t enable;
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68
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37 ngx_flag_t localtime;
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50
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38 } ngx_http_autoindex_loc_conf_t;
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39
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40
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41 #define NGX_HTTP_AUTOINDEX_NAME_LEN 50
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42
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43
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52
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44 static int ngx_libc_cdecl ngx_http_autoindex_cmp_entries(const void *one,
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45 const void *two);
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50
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46 static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r,
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47 ngx_dir_t *dir, u_char *name);
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48 static ngx_int_t ngx_http_autoindex_init(ngx_cycle_t *cycle);
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49 static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf);
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50 static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
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51 void *parent, void *child);
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52
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53
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54 static ngx_command_t ngx_http_autoindex_commands[] = {
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55
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56 { ngx_string("autoindex"),
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57 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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58 ngx_conf_set_flag_slot,
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59 NGX_HTTP_LOC_CONF_OFFSET,
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60 offsetof(ngx_http_autoindex_loc_conf_t, enable),
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61 NULL },
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62
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68
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63 { ngx_string("autoindex_localtime"),
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64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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65 ngx_conf_set_flag_slot,
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66 NGX_HTTP_LOC_CONF_OFFSET,
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67 offsetof(ngx_http_autoindex_loc_conf_t, localtime),
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68 NULL },
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69
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50
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70 ngx_null_command
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71 };
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72
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73
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74 ngx_http_module_t ngx_http_autoindex_module_ctx = {
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58
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75 NULL, /* preconfiguration */
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76 NULL, /* postconfiguration */
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77
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78 NULL, /* create main configuration */
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79 NULL, /* init main configuration */
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80
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81 NULL, /* create server configuration */
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82 NULL, /* merge server configuration */
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83
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84 ngx_http_autoindex_create_loc_conf, /* create location configration */
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85 ngx_http_autoindex_merge_loc_conf /* merge location configration */
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86 };
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87
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88
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89 ngx_module_t ngx_http_autoindex_module = {
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90 NGX_MODULE_V1,
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91 &ngx_http_autoindex_module_ctx, /* module context */
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92 ngx_http_autoindex_commands, /* module directives */
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93 NGX_HTTP_MODULE, /* module type */
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94 ngx_http_autoindex_init, /* init module */
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95 NULL /* init process */
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96 };
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97
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98
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99 static u_char title[] =
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100 "<html>" CRLF
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101 "<head><title>Index of "
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102 ;
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103
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104
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105 static u_char header[] =
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106 "</title></head>" CRLF
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107 "<body bgcolor=\"white\">" CRLF
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108 "<h1>Index of "
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109 ;
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110
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111 static u_char tail[] =
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112 "</body>" CRLF
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113 "</html>" CRLF
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114 ;
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115
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116
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117 static ngx_int_t
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118 ngx_http_autoindex_handler(ngx_http_request_t *r)
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119 {
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120 u_char *last;
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121 size_t len;
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122 ngx_tm_t tm;
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123 ngx_int_t rc;
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124 ngx_uint_t i, level;
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125 ngx_err_t err;
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126 ngx_buf_t *b;
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127 ngx_chain_t out;
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128 ngx_str_t dname, fname;
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129 ngx_dir_t dir;
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130 ngx_pool_t *pool;
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131 ngx_array_t entries;
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132 ngx_http_core_loc_conf_t *clcf;
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133 ngx_http_autoindex_entry_t *entry;
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134 ngx_http_autoindex_loc_conf_t *alcf;
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135
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136 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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137 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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138
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139 if (r->uri.data[r->uri.len - 1] != '/') {
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140 return NGX_DECLINED;
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141 }
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142
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143 /* TODO: Win32 */
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144 if (r->zero_in_uri) {
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145 return NGX_DECLINED;
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146 }
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147
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148 alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
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149
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150 if (!alcf->enable) {
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151 return NGX_DECLINED;
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152 }
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153
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154 /* TODO: pool should be temporary pool */
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155 pool = r->pool;
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156
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157 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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158
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159 if (clcf->alias) {
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160 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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161 + NGX_DIR_MASK_LEN + 1
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162 - clcf->name.len);
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163 if (dname.data == NULL) {
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164 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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165 }
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166
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167 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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168 last = ngx_cpystrn(last, r->uri.data + clcf->name.len,
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169 r->uri.len - clcf->name.len + 1);
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170
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171 } else {
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172 dname.data = ngx_palloc(pool, clcf->root.len + r->uri.len
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173 + NGX_DIR_MASK_LEN);
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174 if (dname.data == NULL) {
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175 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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176 }
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177
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178 last = ngx_cpymem(dname.data, clcf->root.data, clcf->root.len);
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179 last = ngx_cpystrn(last, r->uri.data, r->uri.len);
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180 }
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181
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182 dname.len = last - dname.data;
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183
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184 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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185 "http autoindex: \"%s\"", dname.data);
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186
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187
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188 if (ngx_open_dir(&dname, &dir) == NGX_ERROR) {
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189 err = ngx_errno;
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190
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191 if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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192 level = NGX_LOG_ERR;
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193 rc = NGX_HTTP_NOT_FOUND;
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194
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195 } else if (err == NGX_EACCES) {
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196 level = NGX_LOG_ERR;
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197 rc = NGX_HTTP_FORBIDDEN;
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198
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199 } else {
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200 level = NGX_LOG_CRIT;
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201 rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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202 }
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203
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204 ngx_log_error(level, r->connection->log, err,
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205 ngx_open_dir_n " \"%s\" failed", dname.data);
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206
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207 return rc;
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208 }
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209
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210 #if (NGX_SUPPRESS_WARN)
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211 /* MSVC thinks 'entries' may be used without having been initialized */
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212 ngx_memzero(&entries, sizeof(ngx_array_t));
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213 #endif
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214
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215 if (ngx_array_init(&entries, pool, 50, sizeof(ngx_http_autoindex_entry_t))
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216 == NGX_ERROR)
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217 {
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218 return ngx_http_autoindex_error(r, &dir, dname.data);
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219 }
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220
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221 r->headers_out.status = NGX_HTTP_OK;
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222 r->headers_out.content_type.len = sizeof("text/html") - 1;
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223 r->headers_out.content_type.data = (u_char *) "text/html";
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224
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225 rc = ngx_http_send_header(r);
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226
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227 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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228 return rc;
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229 }
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230
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231 fname.len = 0;
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232 #if (NGX_SUPPRESS_WARN)
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233 fname.data = NULL;
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234 #endif
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235
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236 for ( ;; ) {
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237 ngx_set_errno(0);
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238
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239 if (ngx_read_dir(&dir) == NGX_ERROR) {
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240 err = ngx_errno;
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241
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242 if (err != NGX_ENOMOREFILES) {
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243 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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244 ngx_read_dir_n " \"%s\" failed", dname.data);
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245 return ngx_http_autoindex_error(r, &dir, dname.data);
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246 }
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247
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248 break;
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249 }
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250
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251 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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252 "http autoindex file: \"%s\"", ngx_de_name(&dir));
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253
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254 len = ngx_de_namelen(&dir);
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255
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256 if (len == 1 && ngx_de_name(&dir)[0] == '.') {
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257 continue;
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258 }
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259
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260 if (len == 2
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261 && ngx_de_name(&dir)[0] == '.'
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262 && ngx_de_name(&dir)[1] == '.')
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263 {
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264 continue;
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265 }
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266
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267 if (!dir.valid_info) {
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268
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269 if (dname.len + 1 + len > fname.len) {
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270 fname.len = dname.len + 1 + len + 32;
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271
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272 fname.data = ngx_palloc(pool, fname.len);
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273 if (fname.data == NULL) {
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274 return ngx_http_autoindex_error(r, &dir, dname.data);
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275 }
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276
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277 last = ngx_cpystrn(fname.data, dname.data,
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278 dname.len + 1);
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279 *last++ = '/';
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280 }
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281
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282 ngx_cpystrn(last, ngx_de_name(&dir), len + 1);
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283
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284 if (ngx_de_info(fname.data, &dir) == NGX_FILE_ERROR) {
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285 err = ngx_errno;
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286
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287 if (err != NGX_ENOENT) {
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288 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
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289 ngx_de_info_n " \"%s\" failed", fname.data);
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290 return ngx_http_autoindex_error(r, &dir, dname.data);
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291 }
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292
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293 if (ngx_de_link_info(fname.data, &dir) == NGX_FILE_ERROR) {
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294 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
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295 ngx_de_link_info_n " \"%s\" failed",
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296 fname.data);
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297 return ngx_http_autoindex_error(r, &dir, dname.data);
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298 }
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299 }
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300 }
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301
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302 entry = ngx_array_push(&entries);
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303 if (entry == NULL) {
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304 return ngx_http_autoindex_error(r, &dir, dname.data);
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305 }
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306
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307 entry->name.len = len;
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308
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309 entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len,
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310 NGX_ESCAPE_HTML);
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311
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312 entry->name.data = ngx_palloc(pool, len + entry->escape + 1);
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313 if (entry->name.data == NULL) {
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314 return ngx_http_autoindex_error(r, &dir, dname.data);
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315 }
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316
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317 ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1);
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318
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319 if (r->utf8) {
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320 entry->utf_len = ngx_utf_length(&entry->name);
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321 } else {
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322 entry->utf_len = len;
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323 }
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324
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325 entry->dir = ngx_de_is_dir(&dir);
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326 entry->mtime = ngx_de_mtime(&dir);
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327 entry->size = ngx_de_size(&dir);
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328 }
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329
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330 if (ngx_close_dir(&dir) == NGX_ERROR) {
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331 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
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332 ngx_close_dir_n " \"%s\" failed", dname.data);
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333 }
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334
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335 len = sizeof(title) - 1
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336 + r->uri.len
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337 + sizeof(header) - 1
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338 + r->uri.len
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339 + sizeof("</h1>") - 1
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340 + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
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341 + sizeof("</pre><hr>") - 1
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342 + sizeof(tail) - 1;
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343
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344 entry = entries.elts;
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345 for (i = 0; i < entries.nelts; i++) {
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346 len += sizeof("<a href=\"") - 1
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74
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347 + 1 /* 1 is for "/" */
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348 + entry[i].name.len + entry[i].escape
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349 + sizeof("\">") - 1
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350 + entry[i].name.len - entry[i].utf_len
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351 + NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof(">") - 2
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352 + sizeof("</a>") - 1
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353 + sizeof(" 28-Sep-1970 12:00 ") - 1
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354 + 19
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355 + 2;
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50
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356 }
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357
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358 b = ngx_create_temp_buf(r->pool, len);
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359 if (b == NULL) {
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360 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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361 }
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362
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363 if (entries.nelts > 1) {
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364 ngx_qsort(entry, (size_t) entries.nelts,
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365 sizeof(ngx_http_autoindex_entry_t),
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366 ngx_http_autoindex_cmp_entries);
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367 }
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368
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369 b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
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370 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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371 b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
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372 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
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373 b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
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374
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375 b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
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376 sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
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377
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378 for (i = 0; i < entries.nelts; i++) {
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379 b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1);
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380
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381 if (entry[i].escape) {
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382 ngx_escape_uri(b->last, entry[i].name.data, entry[i].name.len,
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383 NGX_ESCAPE_HTML);
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384
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385 b->last += entry[i].name.len + entry[i].escape;
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386
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387 } else {
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388 b->last = ngx_cpymem(b->last, entry[i].name.data,
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389 entry[i].name.len);
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390 }
|
|
|
391
|
|
|
392 if (entry[i].dir) {
|
|
|
393 *b->last++ = '/';
|
|
|
394 }
|
|
|
395
|
|
|
396 *b->last++ = '"';
|
|
|
397 *b->last++ = '>';
|
|
|
398
|
|
|
399 b->last = ngx_cpystrn(b->last, entry[i].name.data,
|
|
|
400 NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
|
|
|
401
|
|
74
|
402 len = entry[i].utf_len;
|
|
50
|
403
|
|
|
404 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
|
|
|
405 b->last = ngx_cpymem(b->last - 3, "..></a>",
|
|
|
406 sizeof("..></a>") - 1);
|
|
|
407
|
|
|
408 } else {
|
|
|
409 if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
|
|
|
410 *b->last++ = '/';
|
|
|
411 len++;
|
|
|
412 }
|
|
|
413
|
|
|
414 b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1);
|
|
|
415 ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len);
|
|
|
416 b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len;
|
|
|
417 }
|
|
|
418
|
|
|
419 *b->last++ = ' ';
|
|
|
420
|
|
68
|
421 ngx_gmtime(entry[i].mtime + ngx_gmtoff * 60 * alcf->localtime, &tm);
|
|
50
|
422
|
|
|
423 b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ",
|
|
|
424 tm.ngx_tm_mday,
|
|
|
425 months[tm.ngx_tm_mon - 1],
|
|
|
426 tm.ngx_tm_year,
|
|
|
427 tm.ngx_tm_hour,
|
|
|
428 tm.ngx_tm_min);
|
|
|
429
|
|
|
430 if (entry[i].dir) {
|
|
|
431 b->last = ngx_cpymem(b->last, " -",
|
|
|
432 sizeof(" -") - 1);
|
|
|
433
|
|
|
434 } else {
|
|
|
435 b->last = ngx_sprintf(b->last, "%19O", entry[i].size);
|
|
|
436 }
|
|
|
437
|
|
|
438 *b->last++ = CR;
|
|
|
439 *b->last++ = LF;
|
|
|
440 }
|
|
|
441
|
|
|
442 /* TODO: free temporary pool */
|
|
|
443
|
|
|
444 b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
|
|
|
445
|
|
|
446 b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
|
|
|
447
|
|
58
|
448 if (r->main == NULL) {
|
|
50
|
449 b->last_buf = 1;
|
|
|
450 }
|
|
|
451
|
|
58
|
452 b->last_in_chain = 1;
|
|
|
453
|
|
50
|
454 out.buf = b;
|
|
|
455 out.next = NULL;
|
|
|
456
|
|
|
457 return ngx_http_output_filter(r, &out);
|
|
|
458 }
|
|
|
459
|
|
|
460
|
|
52
|
461 static int ngx_libc_cdecl
|
|
50
|
462 ngx_http_autoindex_cmp_entries(const void *one, const void *two)
|
|
|
463 {
|
|
|
464 ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one;
|
|
|
465 ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two;
|
|
|
466
|
|
|
467 if (first->dir && !second->dir) {
|
|
|
468 /* move the directories to the start */
|
|
|
469 return -1;
|
|
|
470 }
|
|
|
471
|
|
|
472 if (!first->dir && second->dir) {
|
|
|
473 /* move the directories to the start */
|
|
|
474 return 1;
|
|
|
475 }
|
|
|
476
|
|
|
477 return (int) ngx_strcmp(first->name.data, second->name.data);
|
|
|
478 }
|
|
|
479
|
|
|
480
|
|
|
481 #if 0
|
|
|
482
|
|
|
483 static ngx_buf_t *
|
|
|
484 ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx, size_t size)
|
|
|
485 {
|
|
|
486 ngx_chain_t *cl;
|
|
|
487
|
|
|
488 if (ctx->buf) {
|
|
|
489
|
|
|
490 if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) {
|
|
|
491 return ctx->buf;
|
|
|
492 }
|
|
|
493
|
|
|
494 ctx->size += ctx->buf->last - ctx->buf->pos;
|
|
|
495 }
|
|
|
496
|
|
|
497 ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size);
|
|
|
498 if (ctx->buf == NULL) {
|
|
|
499 return NULL;
|
|
|
500 }
|
|
|
501
|
|
|
502 cl = ngx_alloc_chain_link(ctx->pool);
|
|
|
503 if (cl == NULL) {
|
|
|
504 return NULL;
|
|
|
505 }
|
|
|
506
|
|
|
507 cl->buf = ctx->buf;
|
|
|
508 cl->next = NULL;
|
|
|
509
|
|
|
510 *ctx->last_out = cl;
|
|
|
511 ctx->last_out = &cl->next;
|
|
|
512
|
|
|
513 return ctx->buf;
|
|
|
514 }
|
|
|
515
|
|
|
516 #endif
|
|
|
517
|
|
|
518
|
|
|
519 static ngx_int_t
|
|
|
520 ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir, u_char *name)
|
|
|
521 {
|
|
|
522 if (ngx_close_dir(dir) == NGX_ERROR) {
|
|
|
523 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
|
|
|
524 ngx_close_dir_n " \"%s\" failed", name);
|
|
|
525 }
|
|
|
526
|
|
|
527 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
528 }
|
|
|
529
|
|
|
530
|
|
|
531 static ngx_int_t
|
|
|
532 ngx_http_autoindex_init(ngx_cycle_t *cycle)
|
|
|
533 {
|
|
|
534 ngx_http_handler_pt *h;
|
|
|
535 ngx_http_core_main_conf_t *cmcf;
|
|
|
536
|
|
|
537 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
|
|
|
538
|
|
|
539 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
|
|
|
540 if (h == NULL) {
|
|
|
541 return NGX_ERROR;
|
|
|
542 }
|
|
|
543
|
|
|
544 *h = ngx_http_autoindex_handler;
|
|
|
545
|
|
|
546 return NGX_OK;
|
|
|
547 }
|
|
|
548
|
|
|
549
|
|
|
550 static void *
|
|
|
551 ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf)
|
|
|
552 {
|
|
|
553 ngx_http_autoindex_loc_conf_t *conf;
|
|
|
554
|
|
|
555 conf = ngx_palloc(cf->pool, sizeof(ngx_http_autoindex_loc_conf_t));
|
|
|
556 if (conf == NULL) {
|
|
|
557 return NGX_CONF_ERROR;
|
|
|
558 }
|
|
|
559
|
|
|
560 conf->enable = NGX_CONF_UNSET;
|
|
68
|
561 conf->localtime = NGX_CONF_UNSET;
|
|
50
|
562
|
|
|
563 return conf;
|
|
|
564 }
|
|
|
565
|
|
|
566
|
|
|
567 static char *
|
|
|
568 ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
569 {
|
|
|
570 ngx_http_autoindex_loc_conf_t *prev = parent;
|
|
|
571 ngx_http_autoindex_loc_conf_t *conf = child;
|
|
|
572
|
|
|
573 ngx_conf_merge_value(conf->enable, prev->enable, 0);
|
|
68
|
574 ngx_conf_merge_value(conf->localtime, prev->localtime, 0);
|
|
50
|
575
|
|
|
576 return NGX_CONF_OK;
|
|
|
577 }
|
