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/**
* rofi
*
* MIT/X11 License
* Copyright 2013-2014 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <X11/X.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <dirent.h>
#include <strings.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <helper.h>
#include "rofi.h"
#include "history.h"
#include "ssh-dialog.h"
#ifdef TIMING
#include <time.h>
#endif
#define SSH_CACHE_FILE "rofi-2.sshcache"
static inline int execshssh ( const char *host )
{
/**
* I am not happy about this code, it causes 7 mallocs and frees
*/
char **args = NULL;
int argsv = 0;
helper_parse_setup ( config.ssh_command, &args, &argsv, "{host}", host, NULL );
GError *error = NULL;
g_spawn_async ( NULL, args, NULL,
G_SPAWN_SEARCH_PATH,
NULL, NULL, NULL, &error );
if ( error != NULL ) {
char *msg = g_strdup_printf ( "Failed to execute: 'ssh %s'\nError: '%s'", host,
error->message );
error_dialog ( msg );
g_free ( msg );
// print error.
g_error_free ( error );
}
// Free the args list.
g_strfreev ( args );
return 0;
}
// execute sub-process
static pid_t exec_ssh ( const char *cmd )
{
if ( !cmd || !cmd[0] ) {
return -1;
}
execshssh ( cmd );
/**
* This happens in non-critical time (After launching app)
* It is allowed to be a bit slower.
*/
char *path = g_strdup_printf ( "%s/%s", cache_dir, SSH_CACHE_FILE );
history_set ( path, cmd );
g_free ( path );
return 0;
}
static void delete_ssh ( const char *cmd )
{
if ( !cmd || !cmd[0] ) {
return;
}
char *path = NULL;
path = g_strdup_printf ( "%s/%s", cache_dir, SSH_CACHE_FILE );
history_remove ( path, cmd );
g_free ( path );
}
static int ssh_sort_func ( const void *a, const void *b )
{
const char *astr = *( const char * const * ) a;
const char *bstr = *( const char * const * ) b;
return g_utf8_collate ( astr, bstr );
}
static char ** get_ssh ( unsigned int *length )
{
unsigned int num_favorites = 0;
char *path;
char **retv = NULL;
#ifdef TIMING
struct timespec start, stop;
clock_gettime ( CLOCK_REALTIME, &start );
#endif
if ( getenv ( "HOME" ) == NULL ) {
return NULL;
}
path = g_strdup_printf ( "%s/%s", cache_dir, SSH_CACHE_FILE );
retv = history_get_list ( path, length );
g_free ( path );
num_favorites = ( *length );
FILE *fd = NULL;
const char *hd = getenv ( "HOME" );
path = g_strdup_printf ( "%s/%s", hd, ".ssh/config" );
fd = fopen ( path, "r" );
if ( fd != NULL ) {
char buffer[1024];
while ( fgets ( buffer, 1024, fd ) != NULL ) {
if ( strncasecmp ( buffer, "Host", 4 ) == 0 && isspace ( buffer[4] ) ) {
int start = 0, stop = 0;
buffer[strlen ( buffer ) - 1] = '\0';
for ( start = 4; isspace ( buffer[start] ); start++ ) {
;
}
for ( stop = start; !isspace ( buffer[stop] ); stop++ ) {
// We do not want to show wildcard entries, as you cannot ssh to them.
if ( buffer[stop] == '?' || buffer[stop] == '*' ) {
stop = start;
break;
}
}
int found = 0;
if ( start == stop ) {
continue;
}
// This is a nice little penalty, but doable? time will tell.
// given num_favorites is max 25.
for ( unsigned int j = 0; found == 0 && j < num_favorites; j++ ) {
if ( strncasecmp ( &buffer[start], retv[j], stop - start ) == 0 ) {
found = 1;
}
}
if ( found == 1 ) {
continue;
}
retv = g_realloc ( retv, ( ( *length ) + 2 ) * sizeof ( char* ) );
retv[( *length )] = strndup ( &buffer[start], stop - start );
retv[( *length ) + 1] = NULL;
( *length )++;
}
}
fclose ( fd );
}
// TODO: check this is still fast enough. (takes 1ms on laptop.)
if ( ( *length ) > num_favorites ) {
qsort ( &retv[num_favorites], ( *length ) - num_favorites, sizeof ( char* ), ssh_sort_func );
}
g_free ( path );
#ifdef TIMING
clock_gettime ( CLOCK_REALTIME, &stop );
if ( stop.tv_sec != start.tv_sec ) {
stop.tv_nsec += ( stop.tv_sec - start.tv_sec ) * 1e9;
}
long diff = stop.tv_nsec - start.tv_nsec;
printf ( "Time elapsed: %ld us\n", diff / 1000 );
#endif
return retv;
}
SwitcherMode ssh_switcher_dialog ( char **input, G_GNUC_UNUSED void *data )
{
SwitcherMode retv = MODE_EXIT;
// act as a launcher
unsigned int cmd_list_length = 0;
char **cmd_list = get_ssh ( &cmd_list_length );
if ( cmd_list == NULL ) {
cmd_list = g_malloc_n ( 2, sizeof ( char * ) );
cmd_list[0] = g_strdup ( "No ssh hosts found" );
cmd_list[1] = NULL;
}
int shift = 0;
int selected_line = 0;
int mretv = menu ( cmd_list, cmd_list_length, input, "ssh:",
NULL, &shift, token_match, NULL, &selected_line, config.levenshtein_sort );
if ( mretv == MENU_NEXT ) {
retv = NEXT_DIALOG;
}
else if ( mretv == MENU_PREVIOUS ) {
retv = PREVIOUS_DIALOG;
}
else if ( mretv == MENU_QUICK_SWITCH ) {
retv = selected_line;
}
else if ( mretv == MENU_OK && cmd_list[selected_line] != NULL ) {
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