kppp/ppplog.cpp

   1 /*
   2  *
   3  *            kPPP: A pppd front end for the KDE project
   4  *
   5  * $Id$
   6  *
   7  * (c) 1998 Mario Weilguni <mweilguni@kde.org>
   8  *
   9  *            Copyright (C) 1997 Bernd Johannes Wuebben
  10  *                   wuebben@math.cornell.edu
  11  *
  12  * based on EzPPP:
  13  * Copyright (C) 1997  Jay Painter
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU Library General Public
  17  * License as published by the Free Software Foundation; either
  18  * version 2 of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23  * Library General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU Library General Public
  26  * License along with this program; if not, write to the Free
  27  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  28  */
  29
  30 #include <qlabel.h>
  31 #include <qdir.h>
  32 #include <qpushbutton.h>
  33 //Added by qt3to4:
  34 #include <QVBoxLayout>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <ctype.h>
  39 #include <unistd.h>
  40 #include <sys/stat.h>
  41
  42 #include <kdialog.h>
  43 #include <qregexp.h>
  44 #include <QTextEdit>
  45 #include <qlayout.h>
  46
  47 #include <kmessagebox.h>
  48
  49 #include "pppdata.h"
  50 #include "requester.h"
  51 #include <klocale.h>
  52
  53
  54 int PPPL_MakeLog(QStringList &list) {
  55   int pid = -1, newpid;
  56   char buffer[1024], *p;
  57   const char *pidp;
  58   int fd;
  59
  60   fd = Requester::rq->openSysLog();
  61   if(fd < 0) {
  62     list.append(i18n("Cannot open any of the following logfiles:"));
  63     const char * const * logFile = &kppp_syslog[0];
  64     while(*logFile) {
  65       list.append(*logFile);
  66       logFile++;
  67     }
  68     return 1;
  69   }
  70
  71   FILE *f = fdopen(fd, "r");
  72   while(fgets(buffer, sizeof(buffer), f) != 0) {
  73     // pppd line ?
  74     p = (char *)strstr(buffer, "pppd[");
  75     if(p == 0)
  76       continue;
  77     pidp = p += strlen("pppd[");
  78     while(*p && isdigit(*p))
  79       p++;
  80     if(*p != ']')
  81       continue;
  82
  83     /* find out pid of pppd */
  84     sscanf(pidp, "%d", &newpid);
  85     if(newpid != pid) {
  86       pid = newpid;
  87       list.clear();
  88     }
  89     if(buffer[strlen(buffer)-1] == '\n')
  90       buffer[strlen(buffer)-1] = '\0';
  91     list.append(buffer);
  92   }
  93   fclose(f);
  94
  95   if(list.isEmpty())
  96     return 2;
  97
  98   /* clear security related info */
  99
 100   const char *keyword[] = {"name = \"",
 101                     "user=\"",
 102                     "password=\"",
 103                     0};
 104
 105   for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it )
 106   {
 107     QByteArray tmp = (*it).toLocal8Bit();
 108     for(int j = 0; keyword[j] != 0; j++) {
 109       char *p;
 110
 111       if( (p = (char *)strstr(tmp.data(), keyword[j])) != 0) {
 112         p += strlen(keyword[j]);
 113         while(*p && *p != '"')
 114           *p++ = 'X';
 115       }
 116     }
 117
 118   }
 119
 120   return 0;
 121 }
 122
 123
 124 void PPPL_AnalyseLog(QStringList &list, QStringList &result) {
 125   QString msg;
 126   const char *rmsg = "Remote message: ";
 127
 128   result.clear();
 129
 130   // setup the analysis database
 131   struct {
 132     const char *regexp;
 133     const char *answer;
 134   } hints[] = {
 135     {"Receive serial link is not 8-bit clean",
 136      I18N_NOOP("You have launched pppd before the remote server " \
 137           "was ready to establish a PPP connection.\n"
 138           "Please use the terminal-based login to verify") },
 139
 140     {"Serial line is looped back",
 141      I18N_NOOP("You have not started the PPP software on the peer system.") },
 142
 143     {"AP authentication failed",
 144      I18N_NOOP("Check that you supplied the correct username and password.")} ,
 145
 146     {"is locked by pid",
 147      I18N_NOOP("You should not pass 'lock' as an argument to pppd. "
 148           "Check /etc/ppp/options and ~/.ppprc") },
 149
 150     {"CP: timeout sending",
 151      I18N_NOOP("The remote system does not seem to answer to\n"
 152           "configuration request. Contact your provider.") },
 153
 154     {"unrecognized option",
 155      I18N_NOOP("You have passed an invalid option to pppd. See 'man pppd' "
 156           "for a complete list of valid arguments.") },
 157
 158     // terminator
 159     {0,0}
 160   };
 161
 162
 163   // scan the log for keywords and try to offer any help
 164   for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it )
 165   {
 166     // look for remote message
 167     int pos = (*it).indexOf(rmsg);
 168     if (pos != -1)
 169     {
 170       QString str = (*it);
 171       str.remove(0, pos + strlen(rmsg));
 172       if(!str.isEmpty()) {
 173         msg = i18n("Notice that the remote system has sent the following"
 174                          " message:\n\"%1\"\nThis may give you a hint why the"
 175                          " the connection has failed.", str);
 176         result.append(msg);
 177       }
 178     }
 179
 180     // check in the hint database
 181     for(uint k = 0; hints[k].regexp != 0; k++) {
 182       QRegExp rx(hints[k].regexp);
 183       QString l(*it);
 184       if(l.contains(rx)) {
 185         result.append(i18n(hints[k].answer));
 186         break;
 187       }
 188     }
 189   }
 190
 191   if (result.isEmpty())
 192     result.append(i18n("Unable to provide help."));
 193 }
 194
 195
 196 void PPPL_ShowLog() {
 197   QStringList sl, result;
 198
 199   PPPL_MakeLog(sl);
 200
 201   bool foundConnect = false;
 202   bool foundLCP = gpppdata.getPPPDebug();
 203   QString lcp = QLatin1String("[LCP");
 204   QString conn = QLatin1String("Connect:");
 205   QStringList::ConstIterator it = sl.constBegin();
 206   for( ; it != sl.constEnd(); it++) {
 207     if((*it).indexOf(lcp) >= 0) {
 208       foundLCP = true;
 209       break;
 210     }
 211     if((*it).contains(conn))
 212       foundConnect = true;
 213   }
 214   if(foundConnect && !foundLCP) {
 215     int result = KMessageBox::warningYesNo(0,
 216                                 i18n("KPPP could not prepare a PPP log. It is very likely "
 217                                      "that pppd was started without the \"debug\" option.\n"
 218                                      "Without this option it's difficult to find out PPP "
 219                                      "problems, so you should turn on the debug option.\n"
 220                                      "Shall I turn it on now?"), QString(), KGuiItem(i18n("Restart pppd")), KGuiItem(i18n("Do Not Restart")));
 221
 222     if(result == KMessageBox::Yes) {
 223       gpppdata.setPPPDebug(true);
 224       KMessageBox::information(0,
 225                        i18n("The \"debug\" option has been added. You "
 226                             "should now try to reconnect. If that fails "
 227                             "again, you will get a PPP log that may help "
 228                                         "you to track down the connection problem."));
 229       //      return;
 230     }
 231
 232     //    return;
 233   }
 234
 235   PPPL_AnalyseLog(sl, result);
 236
 237   KDialog *dlg = new KDialog();
 238   dlg->setButtons(KDialog::Close | KDialog::Ok);
 239   dlg->setWindowTitle(i18n("PPP Log"));
 240   dlg->setButtonText(KDialog::Ok,i18n("Write to File"));
 241   QVBoxLayout *tl = new QVBoxLayout(dlg);
 242   tl->setSpacing(10);
 243   tl->setMargin(10);
 244   QTextEdit *edit = new QTextEdit(dlg);
 245   edit->setReadOnly(true);
 246   QLabel *label = new QLabel(i18n("kppp's diagnosis (just guessing):"), dlg);
 247   QTextEdit *diagnosis = new QTextEdit(dlg);
 248   diagnosis->setReadOnly(true);
 249   edit->setMinimumSize(600, 250);
 250   label->setMinimumSize(600, 15);
 251   diagnosis->setMinimumSize(600, 60);
 252
 253   tl->addWidget(edit, 1);
 254   tl->addWidget(label);
 255   tl->addWidget(diagnosis, 1);
 256   dlg->setFixedSize(dlg->sizeHint());
 257
 258   for(int i = 0; i < sl.count(); i++)
 259     edit->append(sl.at(i));
 260   for(int i = 0; i < result.count(); i++)
 261     diagnosis->append(result.at(i));
 262
 263   if(dlg->exec()) {
 264     QDir d = QDir::home();
 265     QString s = d.absolutePath() + "/PPP-logfile";
 266     int old_umask = umask(0077);
 267
 268     FILE *f = fopen(QFile::encodeName(s), "w");
 269     for(int i = 0; i < sl.count(); i++)
 270       fprintf(f, "%s\n", sl.at(i).toLocal8Bit().data());
 271     fclose(f);
 272     umask(old_umask);
 273
 274     QString msg = i18n("The PPP log has been saved\nas \"%1\".\n\nIf you want to send a bug report, or have\nproblems connecting to the Internet, please\nattach this file. It will help the maintainers\nto find the bug and to improve KPPP", s);
 275     KMessageBox::information(0, msg);
 276   }
 277   delete dlg;
 278 }