src/server/safs/nametrans.c

Sun, 23 Aug 2020 23:04:17 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 23 Aug 2020 23:04:17 +0200
branch
config
changeset 254
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parent 137
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child 277
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permissions
-rw-r--r--

ucx update

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2016 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "nametrans.h"
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30
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31 #include "../daemon/log.h"
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32 #include "../daemon/request.h"
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33 #include "../util/pblock.h"
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34 #include "../util/util.h"
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35
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36 /*
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37 * assign_name
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38 *
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39 * Assigns the name specified by the name parameter if the uri has the
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40 * specified prefix.
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41 *
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42 * pblock parameter:
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43 * name object name
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44 * from optional uri prefix
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45 */
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46 int assign_name(pblock *pb, Session *sn, Request *rq) {
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47 /* TODO: expression instead of simple prefix */
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48
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49 char *name = pblock_findkeyval(pb_key_name, pb);
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50 char *from = pblock_findkeyval(pb_key_from, pb);
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51
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52 if(!name) {
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53 log_ereport(LOG_MISCONFIG, "assign-name: missing name parameter");
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54 protocol_status(sn, rq, 500, NULL);
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55 return REQ_ABORTED;
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56 }
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57
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58 if(from) {
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59 char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb);
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60 char c;
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61 int i = 0;
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62 while((c = from[i]) != 0) {
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63 if(c != uri[i]) {
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64 return REQ_NOACTION;
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65 }
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66 i++;
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67 }
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68 }
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69
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70 // add object to rq->vars
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71 pblock_kvinsert(pb_key_name, name, strlen(name), rq->vars);
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72
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73 return REQ_NOACTION;
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74 }
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76 /*
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77 * document_root
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78 *
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79 * Specifies the document root directory.
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80 *
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81 * pblock parameter:
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82 * root path to document root
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83 */
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84 int document_root(pblock *pb, Session *sn, Request *rq) {
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85 char *root = pblock_findkeyval(pb_key_root, pb);
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86 if(!root) {
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87 log_ereport(LOG_MISCONFIG, "document-root: missing root parameter");
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88 protocol_status(sn, rq, 500, NULL);
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89 return REQ_ABORTED;
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90 }
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91
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92 sstr_t root_str = sstr(root);
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93 sstr_t uri_str = sstr(pblock_findkeyval(pb_key_uri, rq->reqpb));
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94
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95 request_set_path(root_str, uri_str, rq->vars);
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96
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97 return REQ_PROCEED;
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98 }
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99
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100 /*
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101 * pfx2dir
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102 *
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103 * ...
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104 *
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105 * pblock parameter:
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106 * from prefix
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107 * dir file system directory
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108 * name (optional) object name
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109 *
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110 */
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111 int pfx2dir(pblock *pb, Session *sn, Request *rq) {
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112 char *from = pblock_findkeyval(pb_key_from, pb);
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113 char *dir = pblock_findkeyval(pb_key_dir, pb);
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114 char *name = pblock_findkeyval(pb_key_name, pb);
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115
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116 if(!from || !dir) {
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117 if(!from && dir) {
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118 log_ereport(LOG_MISCONFIG, "pfx2dir: missing from parameter");
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119 } else if(!dir && from) {
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120 log_ereport(LOG_MISCONFIG, "pfx2dir: missing dir parameter");
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121 } else {
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122 log_ereport(
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123 LOG_MISCONFIG,
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124 "pfx2dir: missing from and dir parameter");
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125 }
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126 protocol_status(sn, rq, 500, NULL);
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127 return REQ_ABORTED;
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128 }
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129
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130 // check prefix
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131 char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb);
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132 char fc;
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133 char uc;
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134 int i = 0;
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135 while((fc = from[i]) != 0) {
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136 uc = uri[i];
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137 if(fc != uc) {
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138 return REQ_NOACTION;
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139 }
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140 i++;
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141 }
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142
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143 // url has the specified prefix
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144
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145 uri = uri + i;
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146 if(uri[0] == '/') {
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147 uri++;
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148 }
116
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149
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150 request_set_path(sstr(dir), sstr(uri), rq->vars);
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151
96
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152 if(name) {
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153 // add object to rq->vars
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154 pblock_kvinsert(pb_key_name, name, strlen(name), rq->vars);
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155 }
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156
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157 return REQ_PROCEED;
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158 }
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159
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160
137
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161 int redirect(pblock *pb, Session *sn, Request *rq) {
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162 char *from = pblock_findval("from", pb);
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163 char *url = pblock_findval("url", pb);
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164
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165 if(!from || !url) {
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166 log_ereport(LOG_MISCONFIG, "redirect: missing parameter (from, url)");
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167 return REQ_ABORTED;
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168 }
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169
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170 char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb);
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171 if(!strcmp(uri, from)) {
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172 pblock_nvinsert("location", url, rq->srvhdrs);
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173
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174 protocol_status(sn, rq, 302, NULL);
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175 return REQ_ABORTED;
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176 }
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177
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178 return REQ_NOACTION;
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179 }
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180
136
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181 /*
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182 * provisional rewrite saf
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183 */
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184 int simple_rewrite(pblock *pb, Session *sn, Request *rq) {
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185 char *from = pblock_findval("from", pb);
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186 char *root = pblock_findval("root", pb);
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187 char *path = pblock_findval("path", pb);
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188 char *name = pblock_findval("name", pb);
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189
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190 if(!from || !path || !root) {
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191 log_ereport(LOG_MISCONFIG, "simple-rewrite: missing parameter (from, root, path)");
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192 return REQ_ABORTED;
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193 }
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194
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195 char *uri = pblock_findkeyval(pb_key_uri, rq->reqpb);
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196 sstr_t u = sstr(uri);
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197 sstr_t f = sstr(from);
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198 if(sstrprefix(u, f)) {
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199 sstr_t suf = sstrsubs(u, f.length);
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200 sstr_t ppath = sstrcat(2, sstr(path), suf);
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201
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202 request_set_path(sstr(root), ppath, rq->vars);
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203 free(ppath.ptr);
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204
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205 if(name) {
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206 // add object to rq->vars
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207 pblock_kvinsert(pb_key_name, name, strlen(name), rq->vars);
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208 }
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209 }
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210
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211 return REQ_NOACTION;
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212 }

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