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