1 | /**********************************************************************
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2 | *
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3 | * listidsaction.cpp --
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4 | *
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5 | * Copyright (C) 2004-2010 The New Zealand Digital Library Project
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6 | *
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7 | * A component of the Greenstone digital library software
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8 | * from the New Zealand Digital Library Project at the
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9 | * University of Waikato, New Zealand.
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10 | *
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11 | * This program is free software; you can redistribute it and/or modify
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12 | * it under the terms of the GNU General Public License as published by
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13 | * the Free Software Foundation; either version 2 of the License, or
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14 | * (at your option) any later version.
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15 | *
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16 | * This program is distributed in the hope that it will be useful,
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | * GNU General Public License for more details.
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20 | *
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21 | * You should have received a copy of the GNU General Public License
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22 | * along with this program; if not, write to the Free Software
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23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | *
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25 | *********************************************************************/
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26 |
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27 | #include "listidsaction.h"
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28 | #include "recptprototools.h"
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29 | #include "oaitools.h"
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30 |
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31 | //--------------------------------------------------------------------------------------------------
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32 |
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33 | bool listidsaction::validateAction(recptproto *protocol, oaiargs ¶ms)
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34 | {
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35 | // ----------------------------------------------------------------------------
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36 | // 1. Check for invalid arguments
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37 | // ----------------------------------------------------------------------------
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38 | bool invalid_argument_supplied = false;
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39 | text_tmap::const_iterator param_iterator = params.begin();
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40 | while (param_iterator != params.end())
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41 | {
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42 | // Check for arguments that aren't valid for this action
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43 | if (param_iterator->first != "verb" &&
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44 | param_iterator->first != "from" &&
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45 | param_iterator->first != "until" &&
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46 | param_iterator->first != "set" &&
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47 | param_iterator->first != "resumptionToken" &&
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48 | param_iterator->first != "metadataPrefix")
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49 | {
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50 | // We've found an invalid argument
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51 | invalid_argument_supplied = true;
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52 |
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53 | // Delete the invalid argument from the list so it doesn't end up in the <request> tag that is returned
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54 | params.erase(param_iterator->first);
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55 | }
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56 |
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57 | // The metadataPrefix argument is not allowed in OAI v1.1
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58 | else if (param_iterator->first == "metadataPrefix" && this->configuration->getOAIVersion() <= 110)
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59 | {
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60 | // We've found an invalid argument
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61 | invalid_argument_supplied = true;
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62 |
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63 | // Delete the invalid argument from the list so it doesn't end up in the <request> tag that is returned
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64 | params.erase(param_iterator->first);
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65 | }
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66 |
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67 | param_iterator++;
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68 | }
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69 |
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70 | // If we found an invalid argument it's an error, so don't go any further
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71 | if (invalid_argument_supplied)
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72 | {
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73 | this->errorType = "badArgument";
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74 | return false;
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75 | }
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76 |
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77 | // ----------------------------------------------------------------------------
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78 | // 2. Handle any exclusive arguments
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79 | // ----------------------------------------------------------------------------
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80 |
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81 | // The resumptionToken argument is exclusive
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82 | if (params["resumptionToken"] != "")
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83 | {
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84 | // This argument is exclusive, so no other arguments are allowed (except "verb" of course)
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85 | if (params.getSize() != 2)
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86 | {
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87 | this->errorType = "badArgument";
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88 | return false;
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89 | }
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90 |
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91 | // Check the resumption token is valid
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92 | ResumptionToken token(params["resumptionToken"]);
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93 | if (token.isValid())
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94 | {
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95 | // Everything is fine, and we don't continue further because this is an exclusive argument
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96 | this->errorType = "";
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97 | return true;
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98 | }
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99 | else
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100 | {
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101 | // There was an error with the resumption token
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102 | this->errorType = "badResumptionToken";
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103 | return false;
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104 | }
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105 | }
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106 |
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107 | // ----------------------------------------------------------------------------
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108 | // 3. Handle any required arguments
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109 | // ----------------------------------------------------------------------------
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110 |
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111 | // OAI v2.0 requires metadataPrefix
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112 | if (this->configuration->getOAIVersion() > 110)
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113 | {
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114 | text_t metadataPrefix = params["metadataPrefix"];
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115 |
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116 | // Check that the metadataPrefix argument exists
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117 | if (metadataPrefix == "")
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118 | {
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119 | this->errorType = "badArgument";
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120 | return false;
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121 | }
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122 |
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123 | // Check that the metadataPrefix is a format we support
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124 | if (this->formatNotSupported(metadataPrefix))
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125 | {
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126 | this->errorType = "cannotDisseminateFormat";
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127 | return false;
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128 | }
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129 | }
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130 |
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131 | // ----------------------------------------------------------------------------
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132 | // 4. Check any remaining arguments
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133 | // ----------------------------------------------------------------------------
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134 |
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135 | // Check "from" and "until" arguments
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136 | if (params["from"] != "" || params["until"] != "")
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137 | {
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138 | text_t from = params["from"];
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139 | text_t until = params["until"];
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140 |
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141 | // Check the from date is in the correct format: YYYY-MM-DD
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142 | if (from != "")
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143 | {
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144 | // Must be in the form YYYY-MM-DD
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145 | if (from.size() != 10 || from[4] != '-' || from[7] != '-')
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146 | {
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147 | this->errorType = "badArgument";
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148 | params.erase("from");
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149 | }
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150 | }
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151 | // Check the until date is in the correct format: YYYY-MM-DD
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152 | if (until != "")
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153 | {
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154 | // Must be in the form YYYY-MM-DD
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155 | if (until.size() != 10 || until[4] != '-' || until[7] != '-')
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156 | {
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157 | this->errorType = "badArgument";
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158 | params.erase("until");
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159 | }
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160 | }
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161 |
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162 | if (this->errorType == "badArgument")
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163 | {
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164 | return false;
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165 | }
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166 |
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167 | // If both arguments are supplied the from date must be less than or equal to the until date
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168 | if (from != "" && until != "" && !(from <= until))
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169 | {
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170 | this->errorType = "badArgument";
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171 | return false;
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172 | }
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173 | }
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174 |
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175 | // Check "set" argument
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176 | if (params["set"] != "")
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177 | {
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178 | // Example set specification: "demo:CL2"
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179 | text_t set = params["set"];
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180 |
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181 | // Is the set a super collection??
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182 | text_tarray &super_collections = this->configuration->getSuperCollectionsList();
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183 | bool super_collection_found = false;
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184 | for (int c = 0; c < super_collections.size(); c++)
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185 | {
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186 | if (super_collections[c] == set)
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187 | {
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188 | super_collection_found = true;
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189 | break;
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190 | }
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191 | }
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192 | if (super_collection_found) {
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193 | this->errorType = "";
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194 | return true;
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195 | }
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196 |
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197 | // Extract the collection name from the set specification
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198 | text_t collection = "";
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199 | oaiclassifier::toGSDL(collection, set);
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200 |
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201 | // Check that the collection is accessible
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202 | ColInfoResponse_t cinfo;
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203 | comerror_t err;
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204 | protocol->get_collectinfo(collection, cinfo, err, cerr);
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205 | if (err != noError)
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206 | {
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207 | this->errorType = "badArgument";
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208 | return false;
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209 | }
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210 |
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211 | // Check the collection is one that is in the list in the oai.cfg file
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212 | if (!this->configuration->isValidCollection(collection)) {
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213 | this->errorType = "badArgument";
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214 | return false;
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215 | }
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216 |
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217 | // Check the child set if it was given
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218 | if (set != "" && !this->check_classifier(protocol, collection, set))
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219 | {
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220 | this->errorType = "badArgument";
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221 | return false;
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222 | }
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223 | }
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224 |
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225 | // If we've reached here everything must be fine
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226 | this->errorType = "";
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227 | return true;
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228 | }
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229 |
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230 | //--------------------------------------------------------------------------------------------------
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231 |
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232 | bool listidsaction::output_document(ostream& output, recptproto *protocol, const text_t &collection,
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233 | const text_t &OID, const text_t &metadataPrefix /* ignored */)
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234 | {
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235 | FilterResponse_t response;
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236 | ResultDocInfo_t doc_info;
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237 | text_tset metadata;
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238 | ofstream logout("oai.log", ios::app);
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239 | text_t lastModified;
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240 | int oaiVersion = this->configuration->getOAIVersion();
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241 | text_t repos_id = this->configuration->getRepositoryId();
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242 | get_info(OID, collection, "", metadata, false, protocol, response, logout);
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243 | doc_info = response.docInfo[0];
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244 | this->getLastModifiedDate(doc_info, lastModified);
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245 |
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246 | // output the record for this document
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247 | text_t oaiLabel = OID;
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248 | oaiclassifier::toOAI(repos_id, collection, oaiLabel);
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249 |
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250 | if(oaiVersion <= 110)
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251 | output << " <identifier>" << oaiLabel << "</identifier>\n";
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252 | else
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253 | this->output_record_header(output, oaiLabel, lastModified,
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254 | doc_info.metadata["memberof"].values, oaiVersion);
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255 |
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256 | return true;
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257 | }
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