[939] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * historydb.cpp --
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| 4 | * Copyright (C) 1999 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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[928] | 25 |
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| 26 | #include "historydb.h"
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| 27 | #include "fileutil.h"
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| 28 | #include "cgiutils.h"
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| 29 | #include "recptproto.h"
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[15418] | 30 | #include "recptprototools.h"
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[15432] | 31 | #include "gdbmclass.h"
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[928] | 32 |
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[1913] | 33 | #define MAX_RECORDS 20
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[11751] | 34 | #define HIST_SEP ';'
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[928] | 35 |
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| 36 | // returns true on success (in which case historyinfo will contain
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| 37 | // the information for this history)
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[963] | 38 | bool get_history_info (const text_t &userid, text_tarray &historyinfo,
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| 39 | const text_t &gsdlhome, ostream &logout) {
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[939] | 40 |
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[963] | 41 | text_t historyfile = filename_cat(gsdlhome, "etc", "history.db");
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[928] | 42 |
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| 43 | bool result = false;
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| 44 | // open the history database
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| 45 | gdbmclass historydb;
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| 46 |
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[15639] | 47 | if (historydb.opendatabase(historyfile, DB_READER, 1000, true)) {
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[928] | 48 | // get history list
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| 49 | text_t historyresult;
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[939] | 50 |
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[928] | 51 | historydb.getkeydata(userid, historyresult);
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| 52 |
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| 53 | if (historyresult != "") { // there are entries, process them
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[939] | 54 |
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[928] | 55 | splitchar(historyresult.begin(), historyresult.end(), '\n', historyinfo);
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| 56 | result = true;
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| 57 | }
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| 58 | historydb.closedatabase();
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| 59 |
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[939] | 60 | } else {
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| 61 | outconvertclass text_t2ascii;
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| 62 | logout << text_t2ascii << "couldn't open history database " << historyfile << "\n";
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| 63 | }
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[928] | 64 | return result;
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[939] | 65 | }
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[928] | 66 |
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| 67 |
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| 68 | // returns true on success
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[1913] | 69 | // changed to only save 20 records per user, numbers not included
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| 70 | // only save if there are already entries there, or if display=true
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| 71 | bool set_history_info (const text_t &userid, const text_t &history, const text_t &gsdlhome, bool display) {
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[928] | 72 |
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[963] | 73 | text_t historyfile = filename_cat(gsdlhome, "etc", "history.db");
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[928] | 74 |
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| 75 | bool result = false;
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| 76 | // open the history database
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| 77 | gdbmclass historydb;
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| 78 |
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[1913] | 79 | text_t oldhistoryresult;
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| 80 | text_t newhistoryresult;
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| 81 | int numentries=0;
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[928] | 82 |
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[15639] | 83 | if (!historydb.opendatabase(historyfile, DB_READER, 1000, true)) {
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[928] | 84 | // not created yet
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[1913] | 85 | oldhistoryresult="";
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| 86 | if (!display) return true; // dont need to save
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[928] | 87 | }
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| 88 | else {
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| 89 |
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| 90 | // get history list
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[1913] | 91 | if (! historydb.getkeydata(userid, oldhistoryresult)) {
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| 92 | oldhistoryresult="";
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| 93 | if (!display) return true; // dont need to save
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[928] | 94 | }
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| 95 | historydb.closedatabase();
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| 96 | }
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| 97 |
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[1913] | 98 | text_tarray entries;
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| 99 |
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| 100 | if (oldhistoryresult!="") {
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| 101 | splitchar(oldhistoryresult.begin(), oldhistoryresult.end(), '\n', entries);
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| 102 | numentries = entries.size();
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| 103 | if (numentries >= MAX_RECORDS) numentries = MAX_RECORDS-1;
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[928] | 104 | }
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| 105 |
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| 106 | // open for writing
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[15639] | 107 | if (!historydb.opendatabase(historyfile, DB_WRITER_CREATE, 1000, true)) return false;
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[928] | 108 |
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[1913] | 109 | // add on new linethe new record to the front of the list, then add the
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| 110 | // appropriate entries from the old stuff
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| 111 | newhistoryresult += history;
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| 112 | newhistoryresult += "\n";
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[9620] | 113 | for (int i=0; i<numentries;++i) {
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[1913] | 114 | newhistoryresult += entries[i]+"\n";
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| 115 | }
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| 116 |
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[15654] | 117 | if (historydb.setkeydata(userid, newhistoryresult))
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[1913] | 118 | result=true;
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| 119 |
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| 120 | historydb.closedatabase();
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| 121 | return result;
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[928] | 122 | }
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| 123 |
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| 124 | // deletes all a users history
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[963] | 125 | bool delete_all_history_info (const text_t &userid, const text_t &gsdlhome) {
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[939] | 126 |
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[963] | 127 | text_t historyfile = filename_cat(gsdlhome, "etc", "history.db");
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[928] | 128 |
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| 129 | // open the history database
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| 130 | gdbmclass historydb;
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| 131 |
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[15639] | 132 | if (!historydb.opendatabase(historyfile, DB_WRITER, 1000, true)) return false;
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[928] | 133 |
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| 134 | historydb.deletekey(userid);
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[939] | 135 | historydb.closedatabase();
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[928] | 136 | return true;
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| 137 |
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| 138 | }
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| 139 |
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| 140 | // retrieves the value of one of the arguments
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[939] | 141 | void parse_saved_args(text_t &args, text_t key, text_t &value)
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[928] | 142 | {
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| 143 | text_t::iterator here = args.begin();
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| 144 | text_t::iterator end = args.end();
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| 145 | text_t::iterator it;
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| 146 | while (here != end) {
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| 147 | if(*here==key[0]) {
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| 148 | it=findchar(here, end, '=');
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| 149 | if (it==end) {
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| 150 | value=""; return;
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| 151 | }
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| 152 | text_t entry = substr(here, it);
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| 153 | if (entry==key) {
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| 154 | here=it+1;
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[11751] | 155 | it=findchar(here, end, HIST_SEP);
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[928] | 156 | value = substr(here, it);
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| 157 | return;
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| 158 | }
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| 159 | }
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[9620] | 160 | ++here;
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[928] | 161 | }// while
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| 162 | }
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| 163 |
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| 164 | // retrieves the value of all of the arguments
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| 165 | void parse_saved_args(text_t &args, infodbclass &info)
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| 166 | {
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| 167 | text_t::iterator here = args.begin();
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| 168 | text_t::iterator end = args.end();
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| 169 | text_t::iterator it;
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| 170 | text_tarray values;
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| 171 |
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[11751] | 172 | splitchar(here, end, HIST_SEP, values);
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[928] | 173 |
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| 174 | text_tarray::iterator start = values.begin();
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| 175 | text_tarray::iterator stop = values.end();
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| 176 |
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| 177 | text_t key;
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| 178 | text_t value;
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| 179 | while(start!=stop) {
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| 180 |
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| 181 | here=(*start).begin();
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| 182 | end=(*start).end();
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| 183 | it=findchar(here, end, '=');
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| 184 | if (it!=end) {
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| 185 | key = substr(here, it);
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| 186 | value = substr(it+1, end);
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| 187 |
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| 188 | info[key]=value;
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| 189 | }
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[9620] | 190 | ++start;
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[928] | 191 | }
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| 192 | }
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| 193 |
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| 194 |
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[1913] | 195 | void split_saved_query(text_t &query, text_t &numdocs, text_t &cgiargs)
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[928] | 196 | {
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| 197 | text_t::iterator begin = query.begin();
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| 198 | text_t::iterator end = query.end();
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[939] | 199 |
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[1913] | 200 | while (*begin >='0'&& *begin <='9') { // get the digits for numdocs
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[939] | 201 | numdocs.push_back(*begin);
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[9620] | 202 | ++begin;
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[1913] | 203 | }
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| 204 |
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[928] | 205 | if (*begin == '+') { // get the + if there
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| 206 | numdocs.push_back(*begin);
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[9620] | 207 | ++begin;
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[928] | 208 | }
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[1913] | 209 | if (*begin == ':') { // have the old format - previous bit was record number
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| 210 | numdocs.clear();
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[9620] | 211 | ++begin;
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[928] | 212 |
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[1913] | 213 | while(*begin >='0' && *begin <='9') { // get the digits
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| 214 | numdocs.push_back(*begin);
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[9620] | 215 | ++begin;
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[1913] | 216 | }
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| 217 | if (*begin == '+') { // get the + if there
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| 218 | numdocs.push_back(*begin);
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[9620] | 219 | ++begin;
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[1913] | 220 | }
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| 221 | }
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[928] | 222 | cgiargs += (substr(begin, end)); // put rest of query into cgiargs
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| 223 |
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| 224 | }
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| 225 |
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[1913] | 226 | void format_user_info (text_t &historyargs, text_t &userinfo,
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| 227 | cgiargsclass &args,
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| 228 | recptprotolistclass *protos, ostream &logout)
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[928] | 229 | {
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| 230 | text_tset metadata;
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[1913] | 231 | userinfo.clear();
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| 232 |
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[928] | 233 | infodbclass argsinfo;
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[1913] | 234 | parse_saved_args(historyargs, argsinfo);
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[928] | 235 | text_t collect = argsinfo["c"];
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| 236 | if (collect=="") {
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| 237 | userinfo="";
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| 238 | return;
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| 239 | }
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[11751] | 240 |
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[1913] | 241 | if (collect != args["c"]) {
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| 242 | userinfo += collect+", ";
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[928] | 243 | }
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| 244 |
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[1913] | 245 | if (argsinfo["h"] != args["h"]) {
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| 246 |
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| 247 | recptproto *collectproto = protos->getrecptproto(collect,logout);
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| 248 | if (collectproto == NULL) {
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| 249 | userinfo="";
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| 250 | return;
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[928] | 251 | }
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[1913] | 252 | metadata.insert(argsinfo["h"]);
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| 253 | FilterResponse_t response;
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[939] | 254 |
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[7432] | 255 | get_info("collection", collect, args["l"], metadata, false, collectproto, response, logout);
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[1913] | 256 | text_t index = response.docInfo[0].metadata[argsinfo["h"]].values[0];
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| 257 | if (!index.empty()) {
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| 258 | userinfo += index+", ";
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[928] | 259 | }
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[1913] | 260 | }
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| 261 |
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| 262 | if (argsinfo["b"] != args["b"] || argsinfo["t"] != args["t"]) {
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| 263 | if (argsinfo["b"]=="0") { // simple mode
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| 264 | if (argsinfo["t"]=="0") {
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[11751] | 265 | userinfo += " _texthallwords_, ";
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[1913] | 266 | }
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[11751] | 267 | else if (argsinfo["t"]=="1"){
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| 268 | userinfo += " _texthsomewords_, ";
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[1913] | 269 | }
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| 270 |
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| 271 | }
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[11751] | 272 | else if (argsinfo["b"] == "1") { // advanced mode
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[1913] | 273 | if (argsinfo["t"]=="0") {
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[11751] | 274 | userinfo += " _texthboolean_, ";
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[1913] | 275 | }
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[11751] | 276 | else if (argsinfo["t"]=="1") {
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| 277 | userinfo += " _texthranked_, ";
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[1913] | 278 | }
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[928] | 279 | }
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| 280 | }
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[939] | 281 |
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[11751] | 282 | if (argsinfo["k"] != "" && argsinfo["k"] != args["k"]) {
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[1913] | 283 | text_t options;
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[11751] | 284 | // the text translations are the wrong way round
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| 285 | if (argsinfo["k"]=="1") {
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| 286 | userinfo += " _texthcaseoff_, ";
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[1913] | 287 | }
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[11751] | 288 | else if (argsinfo["k"]=="0") {
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| 289 | userinfo += " _texthcaseon_, ";
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[1913] | 290 | }
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[928] | 291 | }
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[1913] | 292 |
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[11751] | 293 | if (argsinfo["s"] != "" && argsinfo["s"] != args["s"]) {
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[1913] | 294 | if (argsinfo["s"]=="0") {
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[11751] | 295 | userinfo += " _texthstemoff_, ";
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[1913] | 296 | }
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[11751] | 297 | else if (argsinfo["s"]=="1") {
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| 298 | userinfo += " _texthstemon_, ";
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[1913] | 299 | }
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[928] | 300 | }
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| 301 |
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| 302 | }
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