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