1 | /**********************************************************************
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2 | *
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3 | * z3950proto.cpp --
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4 | * Copyright (C) 2000 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 | #include "z3950proto.h"
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27 | #include "comtypes.h"
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28 | #include "browsefilter.h"
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29 | #include "queryfilter.h"
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30 | #include "filter.h"
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31 | // z39.50 yaz stuff
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32 | #include <stdio.h> // for (FILE *) type for yyin and fopen.
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33 | // config file parsing stuff
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34 | #include "z3950cfg.h" // for reading in config files -
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35 | // defines "struct z3950cfg *zserver_list" as the head of the list.
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36 |
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37 | // note! yyin is hash-defined in z3950cfg.h to something else, to avoid
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38 | // name conflicts with "other" yyins.
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39 | extern FILE *yyin;
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40 | extern FILE *yyout; // redirect for `errors' (unmatched tokens in flex)
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41 |
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42 | extern "C" {
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43 | extern int zconfigparse();
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44 | }
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45 |
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46 |
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47 |
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48 |
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49 | z3950proto::z3950proto() {
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50 | zserver_count=0;
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51 | }
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52 |
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53 | z3950proto::~z3950proto() {
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54 | }
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55 |
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56 | void z3950proto::add_server (z3950_server& zserver) {
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57 |
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58 | // append the new server
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59 | zserver_count++;
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60 | zservers.push_back(&zserver);
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61 | }
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62 |
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63 | void z3950proto::read_config_file(const text_t &filename, const text_t &errf) {
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64 | struct z3950cfg *here;
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65 | struct z3950cfg *oldhere;
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66 | z3950_server *zserver;
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67 | ShortColInfo_t *tempinfo;
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68 |
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69 | // FILE *errfile declared in z3950cfg.h, defined in zparse.y
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70 |
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71 | char *errf_str=errf.getcstr();
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72 | if ((errfile=fopen(errf_str,"a"))==NULL) {
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73 | // what do we do if we can't open the error file?
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74 | // this means that errors will go to stderr, which may stuff up
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75 | // any cgi headers and the page.
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76 | errfile=stderr;
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77 | }
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78 | delete errf_str;
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79 | yyout=errfile;
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80 |
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81 | // zconfigparse() is defined in zparse.tab.c,
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82 | // which is the bison output of zparse.y
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83 |
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84 | char *filename_str=filename.getcstr();
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85 | yyin=fopen(filename_str,"r");
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86 | if (yyin==NULL) {
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87 | cerr << "Could not open "<<filename_str<<" for reading.\n";
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88 | delete filename_str;
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89 | return;
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90 | }
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91 | delete filename_str;
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92 | zconfigparse();
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93 |
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94 | if (errfile!=stderr)
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95 | fclose(errfile);
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96 |
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97 | // we now have the config files in the ptr zserver_list
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98 | if (zserver_list==NULL)
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99 | return; // no valid servers found in the config file - note that
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100 | // the parser will have already spat out any errors.
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101 |
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102 | // now create z3950servers for each structure in server_list
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103 | here=zserver_list;
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104 | while (here!=NULL) {
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105 | zserver=new z3950_server;
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106 | tempinfo=new ShortColInfo_t;
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107 |
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108 | tempinfo->host.setcstr(here->hostname);
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109 | tempinfo->port=here->port;
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110 | tempinfo->name.setcstr(here->dbname);
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111 | zserver->setInfo(tempinfo);
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112 | zserver->setName(here->shortname);
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113 | // now collection metadata.
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114 | zserver->setMeta("collectionname",here->longname);
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115 | if (here->icon!=NULL)
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116 | zserver->setMeta("iconcollection",here->icon);
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117 | if (here->smallicon!=NULL)
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118 | zserver->setMeta("iconcollectionsmall",here->smallicon);
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119 |
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120 | /* filterclass *filter = new filterclass ();
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121 | zserver->add_filter (filter);
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122 | browsefilterclass *browsefilter = new browsefilterclass();
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123 | zserver->add_filter (browsefilter);
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124 | queryfilterclass *queryfilter = new queryfilterclass();
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125 | zserver->add_filter (queryfilter);
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126 | */
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127 |
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128 | // About list
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129 | if (here->about!=NULL) {
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130 | struct z3950aboutlist *about_here=here->about;
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131 | struct z3950aboutlist *oldabout;
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132 |
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133 | while (about_here!=NULL) {
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134 | // problem with default lang (null): can't add ("",..)
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135 | if (about_here->lang==NULL)
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136 | zserver->addcfgAbout("en",about_here->text);
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137 | else
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138 | zserver->addcfgAbout(about_here->lang, about_here->text);
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139 | oldabout=about_here;
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140 | about_here=about_here->next;
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141 | free(oldabout->lang);
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142 | free(oldabout->text);
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143 | free(oldabout);
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144 | }
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145 | }
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146 |
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147 | oldhere=here;
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148 | here=here->next;
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149 | free(oldhere->shortname); // these 4 strings should all be non-NULL...
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150 | free(oldhere->hostname);
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151 | free(oldhere->dbname);
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152 | free(oldhere->longname);
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153 | if (oldhere->icon) free(oldhere->icon); // these 2 may be NULL
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154 | if (oldhere->smallicon) free(oldhere->smallicon);
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155 | free(oldhere);
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156 |
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157 | add_server(*zserver);
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158 | } // end of while loop.
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159 |
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160 | }
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161 |
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162 | void z3950proto::configure (const text_t &/*key*/,
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163 | const text_tarray &/*cfgline*/) {
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164 | // this is called for each line in the gsdlsite.cfg file
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165 | }
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166 |
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167 |
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168 | bool z3950proto::init (ostream &/*logout*/) {
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169 | // set up tcp connection to server here?
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170 | // we might also read in the config file here (instead of librarymain.cpp)
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171 |
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172 | //
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173 |
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174 | // logout goes to initout.txt
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175 | // logout <<"zdebug:init:Number of z3950 servers: "<< zserver_count << "\n";
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176 | //logout << "\t1st server name: " << zservers[0].getName().getcstr() << "\n";
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177 | return true;
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178 |
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179 | }
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180 |
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181 | /*text_t z3950proto::get_protocol_name () {
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182 | return "z3950proto";
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183 | }
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184 | */
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185 |
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186 | void z3950proto::get_collection_list (text_tarray &collist,
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187 | comerror_t &/*err*/,
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188 | ostream &/*logout*/) {
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189 |
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190 | z3950_server_array::iterator here = zservers.begin();
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191 | z3950_server_array::iterator end = zservers.end();
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192 | while (here != end) {
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193 | collist.push_back((*here)->getName());
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194 | here++;
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195 | }
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196 | }
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197 |
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198 | void z3950proto::has_collection (const text_t &collection, bool &hascollection,
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199 | comerror_t &/*err*/, ostream &/*logout*/) {
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200 | z3950_server_array::iterator here = zservers.begin();
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201 | z3950_server_array::iterator end = zservers.end();
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202 | while (here != end) {
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203 | if((*here)->getName()==collection) {
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204 | hascollection=true;
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205 | return;
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206 | }
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207 | here++;
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208 | }
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209 | hascollection=false;
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210 | }
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211 |
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212 | void z3950proto::ping (const text_t &/*collection*/, bool &wassuccess,
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213 | comerror_t &/*err*/, ostream &/*logout*/) {
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214 | // should we just ping the server, or actually create a connection
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215 | // to the z39.50 server process on the machine ?
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216 | wassuccess = true;
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217 | }
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218 |
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219 | void z3950proto::get_collectinfo (const text_t &collection,
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220 | ColInfoResponse_t &collectinfo,
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221 | comerror_t &err, ostream &logout) {
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222 |
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223 | // set err to protocolError if something goes wrong...
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224 | err=noError;
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225 |
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226 | z3950_server_array::iterator here = zservers.begin();
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227 | z3950_server_array::iterator end = zservers.end();
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228 | while (here != end) {
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229 | if((*here)->getName()==collection) {
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230 | break;
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231 | }
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232 | here++;
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233 | }
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234 |
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235 | if (here==end) {
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236 | err=protocolError;
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237 | char *coll_str=collection.getcstr();
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238 | logout << "z39.50: couldn't find collection"
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239 | << coll_str
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240 | << endl;
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241 | delete coll_str;
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242 | return;
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243 | }
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244 |
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245 | const ShortColInfo_t *colinfo=(*here)->getInfo();
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246 | collectinfo.shortInfo.name=colinfo->name;
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247 | collectinfo.shortInfo.host=colinfo->host;
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248 | collectinfo.shortInfo.port=colinfo->port;
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249 |
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250 | collectinfo.isPublic=true;
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251 | // don't use beta field
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252 | /*collectinfo.isBeta=false;*/
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253 | collectinfo.buildDate=1;
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254 | // leave ccsCols empty (no cross-coll. searching - for now)
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255 | /*collectinfo.ccsCols=(text_tarray);*/ //not like this!!!
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256 | // This info is available from the config file -- johnmcp
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257 | /*******collectinfo.languages.push_back("en");
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258 | collectinfo.languages.push_back("fr");********/
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259 | collectinfo.numDocs=0;
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260 | collectinfo.numWords=0;
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261 | collectinfo.numBytes=0;
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262 | // copy the text maps over.
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263 | // collectinfo.collectionmeta; // text_tmap
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264 | collectinfo.collectionmeta=*((*here)->getMeta());
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265 | collectinfo.format=*((*here)->getFormat()); //text_tmap
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266 | /* collectinfo.building; //text_tmap */
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267 |
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268 | ////collectinfo.receptionist="z3950";
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269 | /* for now... this is a url, relative to .../cgi-bin.
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270 | NOTE: if this is empty, it defaults to _gwcgi_?a=p&p=about&c=<colname>
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271 | */
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272 | }
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273 |
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274 | void z3950proto::get_filterinfo (const text_t &/*collection*/,
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275 | InfoFiltersResponse_t &response,
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276 | comerror_t &/*err*/, ostream &/*logout*/) {
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277 | // we'll fake it here, and say we have set up some filters
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278 | response.filterNames.insert("BrowseFilter");
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279 | response.filterNames.insert("QueryFilter");
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280 | response.filterNames.insert("NullFilter");
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281 |
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282 | }
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283 |
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284 | void z3950proto::get_filteroptions (const text_t &/*collection*/,
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285 | const InfoFilterOptionsRequest_t &/*req*/,
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286 | InfoFilterOptionsResponse_t &response,
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287 | comerror_t &err, ostream &/*logout*/) {
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288 | // for now, assume all servers have the same characteristics
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289 | /* if (request.filterName=="QueryFilter") { }
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290 | else if (request.filterName=="BrowseFilter") { }
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291 | else if (request.filterName=="NullFilter") { } */
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292 | response.filterOptions["Index"].type=FilterOption_t::stringt;
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293 | response.filterOptions["Index"].repeatable=FilterOption_t::onePerQuery;
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294 | response.filterOptions["Index"].defaultValue="any";
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295 | response.filterOptions["Index"].validValues.push_back(".any");
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296 | response.filterOptions["Index"].validValues.push_back(".title");
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297 | response.filterOptions["Index"].validValues.push_back(".author");
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298 | // and maybe ["Language"] option as well?
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299 | err=noError;
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300 | }
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301 |
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302 | void z3950proto::filter (const text_t &collection,
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303 | FilterRequest_t &request,
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304 | FilterResponse_t &response,
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305 | comerror_t &err, ostream &logout) {
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306 | // this function is called when:
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307 | // * creating the title page,(looking for iconcoll* & collectname metadata)
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308 | // * creating the about page (looking for "Title" metadata)
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309 | // * doing the query - (note that a request for metadata comes first, then
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310 | // filterOptions = FRmetadata | FROID | FRtermFreq (64+4+1)
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311 |
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312 | // metadata-only requests have filterName="NullFilter", else "QueryFilter".
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313 | // For the title page, we should not create a connection to the target
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314 | // (target means the actual z39.50 server, origin means us), but
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315 | // for the about page and query pages, we need to get information from the
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316 | // origin. (eg for the about page, we will print out some info such as ID,
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317 | // name and version.
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318 |
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319 | // cerr now goes to errout.txt in etc directory
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320 | err=noError;
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321 |
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322 | // get relevant "collection"
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323 | z3950_server_array::iterator zserver = zservers.begin();
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324 | z3950_server_array::iterator zend = zservers.end();
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325 | while (zserver != zend) {
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326 | if((*zserver)->getName()==collection) {
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327 | break;
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328 | }
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329 | zserver++;
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330 | }
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331 | // now have collection in zserver.
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332 |
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333 | ColInfoResponse_t info;
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334 | ResultDocInfo_t *docInfo;
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335 |
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336 | // leave response.termInfo empty
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337 | // response.termInfo.push_back(""); ??????? (should be empty if not req.)
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338 |
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339 | // See if this is for a query action
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340 | if (request.filterName=="QueryFilter") {
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341 | /* Sample OptionValue pairs
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342 | `StartResults'=`1'
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343 | `EndResults'=`20'
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344 | `Term'=`firstword secondword' (term is just whatever the user typed in)
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345 | `QueryType'=ranked|boolean -> OR|AND
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346 | //`MatchMode'=`some' => 'OR'
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347 | //`MatchMode' = `all' => 'AND'
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348 | `Casefold'=`true'
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349 | `Stem'=`false'
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350 | `Maxdocs'=`50'
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351 | */
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352 | // go through options
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353 | text_t opt_term; // the term(s) that the user entered
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354 | int opt_querytype=0; // 1=>ranked (or), 2=>boolean (and)
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355 | text_t opt_fields; // which fields to search on
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356 | int opt_start=1, opt_end=20; // default values
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357 | int nummatches=0, maxdocs=50; // default values
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358 | OptionValue_tarray::iterator ov_here=request.filterOptions.begin();
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359 | OptionValue_tarray::iterator ov_end=request.filterOptions.end();
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360 | while (ov_here != ov_end) {
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361 | if (ov_here->name=="Term") {
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362 | opt_term=ov_here->value;
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363 | } else if (ov_here->name=="QueryType") {
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364 | if (ov_here->value=="ranked") opt_querytype=1;
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365 | else if (ov_here->value=="boolean") opt_querytype=2;
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366 | else { /* error - shouldn't happen */
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367 | /* currently unhandled */
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368 | }
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369 | } else if (ov_here->name=="Index") {
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370 | opt_fields=ov_here->value;
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371 | } else if (ov_here->name=="StartResults") {
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372 | opt_start=ov_here->value.getint();
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373 | } else if (ov_here->name=="EndResults") {
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374 | opt_end=ov_here->value.getint();
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375 | } else if (ov_here->name=="Maxdocs") {
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376 | maxdocs=ov_here->value.getint();
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377 | }
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378 | ov_here++;
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379 | }
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380 | err=noError;
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381 | text_tarray *titles=(*zserver)->getrecordTitles(opt_term,
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382 | opt_querytype,
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383 | opt_fields,
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384 | opt_start, // first to get
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385 | opt_end-opt_start, //count
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386 | &nummatches,err);
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387 | if (err!=noError) {
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388 | // can we return an err msg in a response, or just use
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389 | // the more drastic Greenstone error mechanism?
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390 | docInfo=new ResultDocInfo_t;
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391 | response.docInfo.push_back(*docInfo);
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392 | docInfo->metadata["Title"].values.push_back("Error - query err?");
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393 | logout << "\nz3950 filter query: error connecting to server\n";
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394 | // for now, DON'T use GSDL protocol err.
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395 | err=noError;
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396 | return;
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397 | }
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398 | // check if (titles==NULL) - only happens on error?
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399 | if (nummatches>0) {
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400 | text_tarray::iterator titles_here=titles->begin();
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401 | text_tarray::iterator titles_end=titles->end();
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402 | int counter=1;
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403 | while (titles_here!=titles_end) {
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404 | docInfo=new ResultDocInfo_t;
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405 | docInfo->metadata["Title"].values.push_back(*titles_here);
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406 | docInfo->result_num=counter;
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407 | // we need to give some OID, so we'll just use counter for now...
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408 | // make it the number into the whole possible retrieved set.
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409 | docInfo->OID=counter+opt_start-1;
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410 | response.docInfo.push_back(*docInfo);
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411 | counter++;
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412 | titles_here++;
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413 | }
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414 | }
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415 |
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416 | if (request.filterResultOptions & FRtermFreq) {
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417 | if (nummatches>maxdocs) {
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418 | response.numDocs=maxdocs; // eg "more than 50" (if Maxdocs==50)
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419 | response.isApprox=MoreThan;
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420 | } else {
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421 | response.numDocs=nummatches; // eg "36 documents"
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422 | response.isApprox=Exact; // Exact | Approximate | MoreThan
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423 | }
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424 | } // end of if (... & FRtermFreq)
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425 |
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426 | } // end of if (... == "QueryFilter")
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427 | else {
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428 | // this wasn't a query action
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429 |
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430 | if (request.filterOptions.size()>0 &&
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431 | request.filterOptions[0].name=="ParentNode") {
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432 | // don't want to return anything
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433 | return;
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---|
434 | /* } else if (request.docSet.size() &&
|
---|
435 | request.docSet[0]!="collection") {
|
---|
436 | // documentaction
|
---|
437 | // if docSet is not empty, it is either "collection", or an array
|
---|
438 | // of OIDs
|
---|
439 | docInfo=new ResultDocInfo_t;
|
---|
440 | response.docInfo.push_back(*docInfo);
|
---|
441 | */
|
---|
442 | } else {
|
---|
443 | // in case we need to return only metadata
|
---|
444 | docInfo=new ResultDocInfo_t;
|
---|
445 | response.docInfo.push_back(*docInfo);
|
---|
446 | }
|
---|
447 | } // end of not a query action
|
---|
448 |
|
---|
449 |
|
---|
450 |
|
---|
451 | // Fill in metadata for each response.docInfo (if wanted)
|
---|
452 | if (request.filterResultOptions & FRmetadata) {
|
---|
453 | get_collectinfo (collection, info, err, logout);
|
---|
454 | // should check err returned here....
|
---|
455 |
|
---|
456 | if (!request.fields.empty()) {
|
---|
457 | // currently, this is only true for NullFilter when getting the "Title"
|
---|
458 | // for a documentaction.
|
---|
459 |
|
---|
460 | // loop on each document being returned
|
---|
461 | ResultDocInfo_tarray::iterator docs_here=response.docInfo.begin();
|
---|
462 | ResultDocInfo_tarray::iterator docs_end=response.docInfo.end();
|
---|
463 | while (docs_here!=docs_end) {
|
---|
464 | // loop on all the metadata fields in request.fields (type text_tset)
|
---|
465 | text_tset::iterator fields_here=request.fields.begin();
|
---|
466 | text_tset::iterator fields_end=request.fields.end();
|
---|
467 | text_tmap::iterator it;
|
---|
468 | while (fields_here!=fields_end) {
|
---|
469 | it=info.collectionmeta.find(*fields_here);
|
---|
470 | if (it!=info.collectionmeta.end())
|
---|
471 | docs_here->metadata[*fields_here].values.push_back((*it).second);
|
---|
472 | else if (*fields_here=="Title" && !request.docSet.empty()) {
|
---|
473 | // We only do this for a document action.
|
---|
474 | // (This comes through as a NullQuery).
|
---|
475 | // hopefully docSet is only not empty for documentaction...
|
---|
476 | text_t doctitle;
|
---|
477 | int i;
|
---|
478 | // check that docSet isn't empty first!!!!!!
|
---|
479 | i=request.docSet[0].getint();
|
---|
480 | text_t doctext="unneeded";
|
---|
481 | /* following variables aren't used, as our query result has been
|
---|
482 | cached in z3950server.cpp (but really we shouldn't know that
|
---|
483 | here...) But for the NullFilter, we don't get given these
|
---|
484 | again in the request, so for now we'll take advantage of this.*/
|
---|
485 |
|
---|
486 | int querytype=0; text_t field="";
|
---|
487 |
|
---|
488 | // get the Query out of the filterOptions. (we need get the Title)
|
---|
489 | text_t query="";
|
---|
490 | OptionValue_tarray::iterator opthere=request.filterOptions.begin();
|
---|
491 | OptionValue_tarray::iterator opt_end=request.filterOptions.end();
|
---|
492 | while (opthere!=opt_end) {
|
---|
493 | if (opthere->name=="Term") {
|
---|
494 | query=opthere->value;
|
---|
495 | } else if (opthere->name=="Index") {
|
---|
496 | field=opthere->value;
|
---|
497 | } else if (opthere->name=="QueryType") {
|
---|
498 | if (opthere->value=="ranked") querytype=1;
|
---|
499 | else if (opthere->value=="boolean") querytype=2;
|
---|
500 | else { /* error - shouldn't happen */
|
---|
501 | /* currently unhandled */
|
---|
502 | }
|
---|
503 | }
|
---|
504 | opthere++;
|
---|
505 | }
|
---|
506 | (*zserver)->getfullrecord(query, querytype, field, i, doctitle, doctext, err);
|
---|
507 | // check err value!
|
---|
508 | docs_here->metadata["Title"].values.push_back(doctitle);
|
---|
509 | } else {
|
---|
510 | docs_here->metadata[*fields_here].values.push_back("");
|
---|
511 | }
|
---|
512 | fields_here++;
|
---|
513 | } // end of inner while loop
|
---|
514 | docs_here++;
|
---|
515 | } // end of outer while loop
|
---|
516 | } // end of if (!request.fields.empty())
|
---|
517 |
|
---|
518 | else { // request.fields empty: return all metadata for about page or query
|
---|
519 | // we'll only put it in the first docInfo.
|
---|
520 | text_tmap::iterator colmeta_here=info.collectionmeta.begin();
|
---|
521 | text_tmap::iterator colmeta_end=info.collectionmeta.end();
|
---|
522 | while (colmeta_here!=colmeta_end) {
|
---|
523 | response.docInfo[0].metadata[(*colmeta_here).first].
|
---|
524 | values.push_back((*colmeta_here).second);
|
---|
525 | colmeta_here++;
|
---|
526 | }
|
---|
527 |
|
---|
528 | // check if "collectionextra" metadata is set. If it isn't, we should
|
---|
529 | // create connection to target to get it.
|
---|
530 | if (info.collectionmeta.find("collectionextra")==colmeta_end) {
|
---|
531 | // it hasn't been set yet...
|
---|
532 | text_t abouttext="<B>Server Online</B><br>\n";
|
---|
533 | abouttext+=(*zserver)->getzAbout();
|
---|
534 | // add in the "About" text we read in from config file.
|
---|
535 | // how do we incorporate multi-lingual metadata?
|
---|
536 | abouttext+="<P>\n";
|
---|
537 | text_t tmpabout;
|
---|
538 |
|
---|
539 | if ((*zserver)->getcfgAbout("en", tmpabout)==true)
|
---|
540 | abouttext+=tmpabout;
|
---|
541 |
|
---|
542 | (*zserver)->setMeta("collectionextra",abouttext);
|
---|
543 | response.docInfo[0].metadata["collectionextra"].values.push_back(abouttext);
|
---|
544 | }
|
---|
545 | } // end of else
|
---|
546 |
|
---|
547 | // do indices' names, regardless of whether asked for or not...
|
---|
548 | if (!response.docInfo.empty()) {
|
---|
549 | response.docInfo[0].metadata[".author"].values.push_back("author fields");
|
---|
550 | response.docInfo[0].metadata[".title"].values.push_back("title fields");
|
---|
551 | response.docInfo[0].metadata[".any"].values.push_back("any fields");
|
---|
552 | }
|
---|
553 | } //end of if (... & FRmetadata) ...
|
---|
554 | }
|
---|
555 |
|
---|
556 |
|
---|
557 |
|
---|
558 | void z3950proto::get_document (const text_t &collection,
|
---|
559 | const DocumentRequest_t &request,
|
---|
560 | DocumentResponse_t &response,
|
---|
561 | comerror_t &err, ostream &logout) {
|
---|
562 |
|
---|
563 | err=noError;
|
---|
564 |
|
---|
565 | // get relevant "collection"
|
---|
566 | z3950_server_array::iterator zserver = zservers.begin();
|
---|
567 | z3950_server_array::iterator zend = zservers.end();
|
---|
568 | while (zserver != zend) {
|
---|
569 | if((*zserver)->getName()==collection) {
|
---|
570 | break;
|
---|
571 | }
|
---|
572 | zserver++;
|
---|
573 | }
|
---|
574 | // now have collection in zserver.
|
---|
575 |
|
---|
576 | /* docresponse consists of
|
---|
577 | text_t response.doc */
|
---|
578 | text_t title="unneeded";
|
---|
579 | text_t doctext;
|
---|
580 | text_t query; // this should not be needed, as we have already connected to
|
---|
581 | // get the title....
|
---|
582 | int querytype; //ditto...
|
---|
583 | text_t field; // ditto...
|
---|
584 | (*zserver)->getfullrecord(query,querytype,field,request.OID.getint(),
|
---|
585 | title,doctext,err);
|
---|
586 | // check return value of above? (false=>not connected)
|
---|
587 | if (err==noError)
|
---|
588 | response.doc=doctext;
|
---|
589 | else {
|
---|
590 | // could print out different messages based on error type....
|
---|
591 | response.doc="<h2>Error</h2>There was an error while connecting to the ";
|
---|
592 | response.doc+="z39.50 server (ie target). Most likely this was a \n";
|
---|
593 | response.doc+="\"Connection Refused\" error.\n";
|
---|
594 |
|
---|
595 | }
|
---|
596 | if (0) {
|
---|
597 | err=protocolError;
|
---|
598 | logout << "Some error\n";
|
---|
599 | }
|
---|
600 | }
|
---|