mdw@git.distorted.org.uk Git - disorder/blob - disobedience/login.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2007, 2008 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20 /** @file disobedience/login.c
  21  * @brief Login box for Disobedience
  22  *
  23  * As of 2.1 we have only two buttons: Login and Cancel.
  24  *
  25  * If you hit Login then a login is attempted.  If it works the window
  26  * disappears and the settings are saved, otherwise they are NOT saved and the
  27  * window remains.
  28  *
  29  * It you hit Cancel then the window disappears without saving anything.
  30  *
  31  * TODO
  32  * - escape and return should work
  33  * - cancel/close should be consistent with properties
  34  */
  35
  36 #include "disobedience.h"
  37 #include "split.h"
  38 #include "filepart.h"
  39 #include "client.h"
  40 #include <sys/types.h>
  41 #include <sys/stat.h>
  42 #include <unistd.h>
  43
  44 /** @brief One field in the login window */
  45 struct login_window_item {
  46   /** @brief Description label */
  47   const char *description;
  48
  49   /** @brief Return the current value */
  50   const char *(*get)(void);
  51
  52   /** @brief Set a new value */
  53   void (*set)(const char *value);
  54
  55   /** @brief Flags
  56    *
  57    * - @ref LWI_HIDDEN - this is a password
  58    */
  59   unsigned flags;
  60
  61 };
  62
  63 /** @brief This is a password */
  64 #define LWI_HIDDEN 0x0001
  65
  66 /** @brief Current login window */
  67 GtkWidget *login_window;
  68
  69 /** @brief Set connection defaults */
  70 static void default_connect(void) {
  71   if(!config->connect.n) {
  72     config->connect.n = 2;
  73     config->connect.s = xcalloc(2, sizeof (char *));
  74     config->connect.s[0] = xstrdup("localhost");
  75     config->connect.s[1] = xstrdup("9999"); /* whatever */
  76   }
  77 }
  78
  79 static const char *get_hostname(void) { return config->connect.s[0]; }
  80 static const char *get_service(void) { return config->connect.s[1]; }
  81 static const char *get_username(void) { return config->username; }
  82 static const char *get_password(void) { return config->password ? config->password : ""; }
  83
  84 static void set_hostname(const char *s) { config->connect.s[0] = (char *)s; }
  85 static void set_service(const char *s) { config->connect.s[1] = (char *)s; }
  86 static void set_username(const char *s) { config->username = s; }
  87 static void set_password(const char *s) { config->password = s; }
  88
  89 /** @brief Table used to generate the form */
  90 static const struct login_window_item lwis[] = {
  91   { "Hostname", get_hostname, set_hostname, 0 },
  92   { "Service", get_service, set_service, 0 },
  93   { "User name", get_username, set_username, 0 },
  94   { "Password", get_password, set_password, LWI_HIDDEN },
  95 };
  96 #define NLWIS (sizeof lwis / sizeof *lwis)
  97
  98 static GtkWidget *lwi_entry[NLWIS];
  99
 100 static void login_update_config(void) {
 101   size_t n;
 102
 103   for(n = 0; n < NLWIS; ++n)
 104     lwis[n].set(xstrdup(gtk_entry_get_text(GTK_ENTRY(lwi_entry[n]))));
 105 }
 106
 107 /** @brief Save current login details */
 108 static void login_save_config(void) {
 109   char *path = config_userconf(0, 0), *tmp;
 110   FILE *fp;
 111
 112   byte_xasprintf(&tmp, "%s.tmp", path);
 113   /* Make sure the directory exists; don't care if it already exists. */
 114   mkdir(d_dirname(tmp), 02700);
 115   /* Write out the file */
 116   if(!(fp = fopen(tmp, "w"))) {
 117     fpopup_msg(GTK_MESSAGE_ERROR, "error opening %s: %s",
 118                tmp, strerror(errno));
 119     goto done;
 120   }
 121   if(fprintf(fp, "username %s\n"
 122              "password %s\n"
 123              "connect %s %s\n",
 124              quoteutf8(config->username),
 125              quoteutf8(config->password),
 126              quoteutf8(config->connect.s[0]),
 127              quoteutf8(config->connect.s[1])) < 0) {
 128     fpopup_msg(GTK_MESSAGE_ERROR, "error writing to %s: %s",
 129                tmp, strerror(errno));
 130     fclose(fp);
 131     goto done;
 132   }
 133   if(fclose(fp) < 0) {
 134     fpopup_msg(GTK_MESSAGE_ERROR, "error closing %s: %s",
 135                tmp, strerror(errno));
 136     goto done;
 137   }
 138   /* Rename into place */
 139   if(rename(tmp, path) < 0) {
 140     fpopup_msg(GTK_MESSAGE_ERROR, "error renaming %s: %s",
 141                tmp, strerror(errno));
 142     goto done;
 143   }
 144 done:
 145   ;
 146 }
 147
 148 /** @brief User pressed OK in login window */
 149 static void login_ok(GtkButton attribute((unused)) *button,
 150                      gpointer attribute((unused)) userdata) {
 151   disorder_client *c;
 152
 153   /* Copy the new config into @ref config */
 154   login_update_config();
 155   /* Attempt a login with the new details */
 156   c = disorder_new(0);
 157   if(!disorder_connect(c)) {
 158     /* Success; save the config and start using it */
 159     login_save_config();
 160     logged_in();
 161     /* Pop down login window */
 162     gtk_widget_destroy(login_window);
 163   } else {
 164     /* Failed to connect - report the error */
 165     popup_msg(GTK_MESSAGE_ERROR, disorder_last(c));
 166     /* TODO it would be nice to restore the config (not the entry contents!) to
 167      * the last known good one if we were already connected to something. */
 168   }
 169   disorder_close(c);                    /* no use for this any more */
 170 }
 171
 172 /** @brief User pressed cancel in the login window */
 173 static void login_cancel(GtkButton attribute((unused)) *button,
 174                          gpointer attribute((unused)) userdata) {
 175   gtk_widget_destroy(login_window);
 176 }
 177
 178 /* Buttons that appear at the bottom of the window */
 179 static struct button buttons[] = {
 180   {
 181     "Login",
 182     login_ok,
 183     "(Re-)connect using these settings",
 184     0
 185   },
 186   {
 187     GTK_STOCK_CLOSE,
 188     login_cancel,
 189     "Discard changes and close window",
 190     0
 191   },
 192 };
 193
 194 #define NBUTTONS (int)(sizeof buttons / sizeof *buttons)
 195
 196 /** @brief Pop up a login box */
 197 void login_box(void) {
 198   GtkWidget *table, *label, *entry,  *buttonbox, *vbox;
 199   size_t n;
 200
 201   /* If there's one already then bring it to the front */
 202   if(login_window) {
 203     gtk_window_present(GTK_WINDOW(login_window));
 204     return;
 205   }
 206   default_connect();
 207   /* Create a new login window */
 208   login_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 209   gtk_widget_set_style(login_window, tool_style);
 210   g_signal_connect(login_window, "destroy",
 211                    G_CALLBACK(gtk_widget_destroyed), &login_window);
 212   gtk_window_set_title(GTK_WINDOW(login_window), "Login Details");
 213   /* Construct the form */
 214   table = gtk_table_new(NLWIS + 1/*rows*/, 2/*columns*/, FALSE/*homogenous*/);
 215   gtk_widget_set_style(table, tool_style);
 216   for(n = 0; n < NLWIS; ++n) {
 217     label = gtk_label_new(lwis[n].description);
 218     gtk_widget_set_style(label, tool_style);
 219     gtk_misc_set_alignment(GTK_MISC(label), 1/*right*/, 0/*bottom*/);
 220     gtk_table_attach(GTK_TABLE(table), label,
 221                      0, 1,              /* left/right_attach */
 222                      n, n+1,            /* top/bottom_attach */
 223                      GTK_FILL, 0,       /* x/yoptions */
 224                      1, 1);             /* x/ypadding */
 225     entry = gtk_entry_new();
 226     gtk_widget_set_style(entry, tool_style);
 227     gtk_entry_set_visibility(GTK_ENTRY(entry),
 228                              lwis[n].flags & LWI_HIDDEN ? FALSE : TRUE);
 229     gtk_entry_set_text(GTK_ENTRY(entry), lwis[n].get());
 230     gtk_table_attach(GTK_TABLE(table), entry,
 231                      1, 2,              /* left/right_attach */
 232                      n, n+1,            /* top/bottom_attach */
 233                      GTK_EXPAND|GTK_FILL, 0, /* x/yoptions */
 234                      1, 1);             /* x/ypadding */
 235     lwi_entry[n] = entry;
 236   }
 237   buttonbox = create_buttons(buttons, NBUTTONS);
 238   vbox = gtk_vbox_new(FALSE, 1);
 239   gtk_box_pack_start(GTK_BOX(vbox), table,
 240                      TRUE/*expand*/, TRUE/*fill*/, 1/*padding*/);
 241   gtk_box_pack_start(GTK_BOX(vbox), buttonbox,
 242                      FALSE/*expand*/, FALSE/*fill*/, 1/*padding*/);
 243   gtk_container_add(GTK_CONTAINER(login_window), frame_widget(vbox, NULL));
 244   gtk_window_set_transient_for(GTK_WINDOW(login_window),
 245                                GTK_WINDOW(toplevel));
 246   gtk_widget_show_all(login_window);
 247 }
 248
 249 /*
 250 Local Variables:
 251 c-basic-offset:2
 252 comment-column:40
 253 fill-column:79
 254 indent-tabs-mode:nil
 255 End:
 256 */