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/* #############################################################################
* code for handling the CLI interface
* #############################################################################
* Copyright (C) 2005-2009 Harry Brueckner
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact: Harry Brueckner <harry_b@mm.st>
* Muenchener Strasse 12a
* 85253 Kleinberghofen
* Germany
* #############################################################################
*/
/* #############################################################################
* includes
*/
#include "cpm.h"
#include <regex.h>
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#include "configuration.h"
#include "general.h"
#include "interface_cli.h"
#include "interface_keys.h"
#include "interface_utf8.h"
#include "interface_xml.h"
#include "listhandler.h"
#include "memory.h"
#include "patternparser.h"
#include "string.h"
#include "xml.h"
/* #############################################################################
* internal functions
*/
void cliEchoOff(void);
void cliEchoOn(void);
const char* cliDialogPassphrase(int retry, char* realm);
void cliShowError(const char* headline, const char* message);
int cliTreeWalk(char** path);
int prepareSearchexpression(void);
/* #############################################################################
* global interface variables
*/
regex_t searchregex;
static struct termios terminalsettings;
char** searchresult = NULL;
char* clisearchpattern = NULL;
/* #############################################################################
*
* Description cli dialog to request the passphrase
* Author Harry Brueckner
* Date 2005-04-03
* Arguments int retry - number of this retry
* const char* realm - name of the realm the passphrase is for
* Return const char* to the passphrase
*/
const char* cliDialogPassphrase(int retry, char* realm)
{
int ret,
size = 0;
TRACE(99, "cliDialogPassphrase()", NULL);
printf(_("enter your passphrase (try #%d)\n%s\n"),
retry,
realm);
if (strlen(runtime -> passphrase))
{ return runtime -> passphrase; }
cliEchoOff();
while ((ret = fgetc(stdin)) && size < PASSPHRASE_LENGTH)
{
if ((char)ret == '\n')
{ break; }
runtime -> passphrase[size++] = (char)ret;
runtime -> passphrase[size] = 0;
}
cliEchoOn();
return runtime -> passphrase;
}
/* #############################################################################
*
* Description turn the cli echo off
* Author Harry Brueckner
* Date 2005-04-03
* Arguments void
* Return void
*/
void cliEchoOff(void)
{
struct termios new_settings;
TRACE(99, "cliEchoOff()", NULL);
tcgetattr(0, &terminalsettings);
new_settings = terminalsettings;
new_settings.c_lflag &= (~ECHO);
tcsetattr(0, TCSANOW, &new_settings);
}
/* #############################################################################
*
* Description turn the cli echo on
* Author Harry Brueckner
* Date 2005-04-03
* Arguments void
* Return void
*/
void cliEchoOn(void)
{
TRACE(99, "cliEchoOn()", NULL);
if(terminalsettings.c_lflag){
tcsetattr(0, TCSANOW, &terminalsettings);
}
}
/* #############################################################################
*
* Description cli interface function which handles the search request
* on the commandline
* Author Harry Brueckner
* Date 2005-04-06
* Arguments void
* Return int 0 if all is ok, 1 on error, 2 if a testrun was made
*/
int cliInterface(void)
{
int error,
found = 0,
i,
size;
char*** path = NULL;
char* errormsg;
TRACE(99, "cliInterface()", NULL);
if (!initUTF8Encoding(config -> encoding))
{
fprintf(stderr, _("error: %s\n"),
_("cli failed to initialize the character encoding."));
exit(1);
}
if (xmlDataFileRead(runtime -> dbfile, &errormsg,
cliDialogPassphrase, cliShowError))
{
if (!errormsg)
{ errormsg = "(null)"; }
fprintf(stderr, _("error: %s\n"), errormsg);
exit(1);
}
error = patternParse();
#ifdef TEST_OPTION
if (!error &&
config -> testrun &&
!strcmp(config -> testrun, "backup"))
{
createBackupfile(runtime -> dbfile, cliShowError);
fprintf(stderr, "backup creation done.\n");
return 2;
}
if (config -> testrun &&
!strcmp(config -> testrun, "searchpattern"))
{ return 2; }
#endif
if (error)
return 1;
#ifdef TEST_OPTION
if (config -> testrun &&
!strcmp("encrypt", config -> testrun))
{
if (xmlDataFileWrite(runtime -> dbfile, &errormsg,
cliDialogPassphrase, cliShowError))
{
if (!errormsg)
{ errormsg = "(null)"; }
fprintf(stderr, _("error: %s\n"), errormsg);
exit(1);
}
return 2;
}
/* we only return 2 if we don't want to test the CLI search */
if (config -> testrun &&
strcmp("clisearch", config -> testrun))
{ return 2; }
#endif
if (!config -> searchdata)
{
fprintf(stderr, _("error: no searchpattern given.\n"));
return 1;
}
if (clisearchpattern)
{ memFreeString(__FILE__, __LINE__, clisearchpattern); }
/* we build the searchpattern string, the user searches for */
i = size = 0;
while (config -> searchdata[i])
{ size += strlen(config -> searchdata[i++]) + 1; }
clisearchpattern = memAlloc(__FILE__, __LINE__, size);
clisearchpattern[0] = 0;
i = 0;
while (config -> searchdata[i])
{
if (strlen(clisearchpattern) > 0)
{ strStrncat(clisearchpattern, " ", 1 + 1); }
strStrncat(clisearchpattern, config -> searchdata[i],
strlen(config -> searchdata[i]) + 1);
i++;
}
/* we must check if the user owerwrites our configuration */
if (runtime -> casesensitive == -1)
{ runtime -> casesensitive = config -> casesensitive; }
if (runtime -> searchtype == SEARCH_UNDEF)
{ runtime -> searchtype = config -> searchtype; }
/* we initialize the results list */
searchresult = NULL;
/* we build our regular expression */
if (prepareSearchexpression())
{
/* we cycle through the list and try to find all matches */
path = memAlloc(__FILE__, __LINE__, sizeof(char**));
*path = NULL;
found = xmlInterfaceTreeWalk(NULL, path, cliTreeWalk);
memFree(__FILE__, __LINE__, path, sizeof(char**));
if (runtime -> searchtype == SEARCH_REGEX)
{ regfree(&searchregex); }
error = 0;
}
else
{ error = 1; }
if (clisearchpattern)
{ memFreeString(__FILE__, __LINE__, clisearchpattern); }
if (!error)
{
if (found)
{ /* we have something to display */
listSort(searchresult);
for (i = 0; i < found; i++)
{
printf("%s\n", searchresult[i]);
}
}
switch (found)
{
case 0:
printf(_("no match found.\n"));
break;
case 1:
printf(_("1 match found.\n"));
break;
default:
printf(_("%d matches found.\n"), found);
break;
}
}
/* we clean up the results */
searchresult = listFree(searchresult);
return 0;
}
/* #############################################################################
*
* Description show a error message to the user
* Author Harry Brueckner
* Date 2005-04-07
* Arguments char* message - error message to show
* Return void
*/
void cliShowError(const char* headline, const char* message)
{
TRACE(99, "cliShowError()", NULL);
fprintf(stderr, _("error: %s %s\n"), headline, message);
}
/* #############################################################################
*
* Description callback function for xml tree walking; in this function
* we search for any matches
* Author Harry Brueckner
* Date 2005-04-06
* Arguments char** path - path we are currently at
* Return int number of found matches
*/
int cliTreeWalk(char** path)
{
int cmp,
i = 0,
l,
lexist,
lsize,
found = 0;
char** pattern = runtime -> searchpatterns;
char* cstring = NULL;
char* cresult = NULL;
TRACE(99, "cliTreeWalk()", NULL);
while (pattern && pattern[i])
{
cstring = NULL;
if (!getPatternSearchString(i, path, &cstring))
{
if (runtime -> searchtype == SEARCH_REGEX)
{ /* regular expression search */
cmp = regexec(&searchregex, cstring, 0, NULL, 0);
}
else
{ /* regular search */
if (runtime -> casesensitive)
{ /* case sensitive comparison */
cmp = strcmp(cstring, clisearchpattern);
}
else
{ /* case insensitive comparison */
cmp = strcasecmp(cstring, clisearchpattern);
}
}
if (!cmp)
{ /* we found a match! */
cresult = NULL;
if (!getPatternResultString(i, path, &cresult))
{ /* and even have a result to display */
lsize = listCount(searchresult);
for (l = lexist = 0; l < lsize; l++)
{
if (!strcmp(searchresult[l], cresult))
{ /* this result already exists, nothing to do */
lexist = 1;
break;
}
}
if (!lexist)
{ /* only if we don't know this result yet, we add it */
searchresult = listAdd(searchresult, cresult);
found++;
}
}
if (cresult)
{ memFreeString(__FILE__, __LINE__, cresult); }
}
}
if (cstring)
{ memFreeString(__FILE__, __LINE__, cstring); }
i++;
}
return found;
}
/* #############################################################################
*
* Description compile the regular expression for the search
* Author Harry Brueckner
* Date 2005-08-05
* Arguments void
* Return 1 if all is ok, otherwise 0 on error
*/
int prepareSearchexpression(void)
{
int eflags,
result;
char* errormsg;
TRACE(99, "prepareSearchexpression()", NULL);
if (runtime -> searchtype == SEARCH_REGULAR)
{ /* for the regular search we don't need anything */
return 1;
}
eflags = REG_EXTENDED | REG_NOSUB;
if (!runtime -> casesensitive)
{ eflags |= REG_ICASE; }
result = regcomp(&searchregex, clisearchpattern, eflags);
if (result)
{
errormsg = memAlloc(__FILE__, __LINE__, STDBUFFERLENGTH);
regerror(result, &searchregex, errormsg, STDBUFFERLENGTH);
fprintf(stderr, "regular expression error: %s\n", errormsg);
memFree(__FILE__, __LINE__, errormsg, STDBUFFERLENGTH);
}
return !result;
}
/* #############################################################################
*/
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