chiark - git - mdw - disorder/blob - disobedience/users.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 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/users.c
  21  * @brief User management for Disobedience
  22  *
  23  * The user management window contains:
  24  * - a list of all the users
  25  * - an add button
  26  * - a delete button
  27  * - a user details panel
  28  * - an apply button
  29  *
  30  * When you select a user that user's details are displayed to the right of the
  31  * list.  Hit the Apply button and any changes are applied.
  32  *
  33  * When you select 'add' a new empty set of details are displayed to be edited.
  34  * Again Apply will commit them.
  35  *
  36  * TODO:
  37  * - enter new username in the GtkTreeView
  38  * - escape and enter keys should work
  39  * - should have a cancel or close button, consistent with properties and login
  40  */
  41
  42 #include "disobedience.h"
  43 #include "bits.h"
  44 #include "sendmail.h"
  45
  46 static void users_details_sensitize_all(void);
  47 static void users_set_report(const char *msg);
  48
  49 static GtkWidget *users_window;
  50 static GtkListStore *users_list;
  51 static GtkTreeSelection *users_selection;
  52
  53 static GtkWidget *users_details_table;
  54 static GtkWidget *users_apply_button;
  55 static GtkWidget *users_delete_button;
  56 static GtkWidget *users_details_name;
  57 static GtkWidget *users_details_email;
  58 static GtkWidget *users_details_password;
  59 static GtkWidget *users_details_password2;
  60 static GtkWidget *users_details_rights[32];
  61 static GtkWidget *users_reporter;
  62 static int users_details_row;
  63 static const char *users_selected;
  64 static const char *users_deferred_select;
  65
  66 static int users_mode;
  67 #define MODE_NONE 0
  68 #define MODE_ADD 1
  69 #define MODE_EDIT 2
  70
  71 #define mode(X) do {                                    \
  72   users_mode = MODE_##X;                                \
  73   if(0) fprintf(stderr, "%s:%d: %s(): mode -> %s\n",    \
  74           __FILE__, __LINE__, __FUNCTION__, #X);        \
  75   users_details_sensitize_all();                        \
  76 } while(0)
  77
  78 static const char *users_email, *users_rights, *users_password;
  79
  80 /** @brief qsort() callback for username comparison */
  81 static int usercmp(const void *a, const void *b) {
  82   return strcmp(*(char **)a, *(char **)b);
  83 }
  84
  85 /** @brief Find a user
  86  * @param user User to find
  87  * @param iter Iterator to point at user
  88  * @return 0 on success, -1 if not found
  89  */
  90 static int users_find_user(const char *user,
  91                            GtkTreeIter *iter) {
  92   char *who;
  93
  94   /* Find the user */
  95   if(!gtk_tree_model_get_iter_first(GTK_TREE_MODEL(users_list), iter))
  96     return -1;
  97   do {
  98     gtk_tree_model_get(GTK_TREE_MODEL(users_list), iter,
  99                        0, &who, -1);
 100     if(!strcmp(who, user)) {
 101       g_free(who);
 102       return 0;
 103     }
 104     g_free(who);
 105   } while(gtk_tree_model_iter_next(GTK_TREE_MODEL(users_list), iter));
 106   return -1;
 107 }
 108
 109 /** @brief Called with the list of users
 110  *
 111  * Called:
 112  * - at startup to populate the initial list
 113  * - when we add a user
 114  * - maybe in the future when we delete a user
 115  *
 116  * If users_deferred_select is set then that user is selected.
 117  */
 118 static void users_got_list(void attribute((unused)) *v,
 119                            const char *err,
 120                            int nvec, char **vec) {
 121   int n;
 122   GtkTreeIter iter;
 123
 124   if(err) {
 125     popup_protocol_error(0, err);
 126     return;
 127   }
 128   /* Present users in alphabetical order */
 129   qsort(vec, nvec, sizeof (char *), usercmp);
 130   /* Set the list contents */
 131   gtk_list_store_clear(users_list);
 132   for(n = 0; n < nvec; ++n)
 133     gtk_list_store_insert_with_values(users_list, &iter, n/*position*/,
 134                                       0, vec[n], /* column 0 */
 135                                       -1);       /* no more columns */
 136   /* Only show the window when the list is populated */
 137   gtk_widget_show_all(users_window);
 138   if(users_deferred_select) {
 139     if(!users_find_user(users_deferred_select, &iter))
 140       gtk_tree_selection_select_iter(users_selection, &iter);
 141     users_deferred_select = 0;
 142   }
 143 }
 144
 145 /** @brief Text should be visible */
 146 #define DETAIL_VISIBLE 1
 147
 148 /** @brief Text should be editable */
 149 #define DETAIL_EDITABLE 2
 150
 151 /** @brief Add a row to the user detail table */
 152 static void users_detail_generic(const char *title,
 153                                  GtkWidget *selector) {
 154   const int row = users_details_row++;
 155   GtkWidget *const label = gtk_label_new(title);
 156   gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 157   gtk_table_attach(GTK_TABLE(users_details_table),
 158                    label,
 159                    0, 1,                /* left/right_attach */
 160                    row, row+1,          /* top/bottom_attach */
 161                    GTK_FILL,            /* xoptions */
 162                    0,                   /* yoptions */
 163                    1, 1);               /* x/ypadding */
 164   gtk_table_attach(GTK_TABLE(users_details_table),
 165                    selector,
 166                    1, 2,                /* left/right_attach */
 167                    row, row + 1,        /* top/bottom_attach */
 168                    GTK_EXPAND|GTK_FILL, /* xoptions */
 169                    GTK_FILL,            /* yoptions */
 170                    1, 1);               /* x/ypadding */
 171 }
 172
 173 static void users_entry_changed(GtkEditable attribute((unused)) *editable,
 174                                 gpointer attribute((unused)) user_data) {
 175   users_details_sensitize_all();
 176 }
 177
 178 /** @brief Add a row to the user details table
 179  * @param entryp Where to put GtkEntry
 180  * @param title Label for this row
 181  * @param value Initial value or NULL
 182  * @param flags Flags word
 183  */
 184 static void users_add_detail(GtkWidget **entryp,
 185                              const char *title,
 186                              const char *value,
 187                              unsigned flags) {
 188   GtkWidget *entry;
 189
 190   if(!(entry = *entryp)) {
 191     *entryp = entry = gtk_entry_new();
 192     g_signal_connect(entry, "changed",
 193                      G_CALLBACK(users_entry_changed), 0);
 194     users_detail_generic(title, entry);
 195   }
 196   gtk_entry_set_visibility(GTK_ENTRY(entry),
 197                            !!(flags & DETAIL_VISIBLE));
 198   gtk_editable_set_editable(GTK_EDITABLE(entry),
 199                             !!(flags & DETAIL_EDITABLE));
 200   gtk_entry_set_text(GTK_ENTRY(entry), value ? value : "");
 201 }
 202
 203 /** @brief Add a checkbox for a right
 204  * @param title Label for this row
 205  * @param value Current value
 206  * @param right Right bit
 207  */
 208 static void users_add_right(const char *title,
 209                             rights_type value,
 210                             rights_type right) {
 211   GtkWidget *check;
 212   GtkWidget **checkp = &users_details_rights[leftmost_bit(right)];
 213
 214   if(!(check = *checkp)) {
 215     *checkp = check = gtk_check_button_new_with_label("");
 216     users_detail_generic(title, check);
 217   }
 218   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), !!(value & right));
 219 }
 220
 221 /** @brief Set sensitivity of particular mine/random rights bits */
 222 static void users_details_sensitize(rights_type r) {
 223   const int bit = leftmost_bit(r);
 224   const GtkWidget *all = users_details_rights[bit];
 225   const int sensitive = (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(all))
 226                          && users_mode != MODE_NONE);
 227
 228   gtk_widget_set_sensitive(users_details_rights[bit + 1], sensitive);
 229   gtk_widget_set_sensitive(users_details_rights[bit + 2], sensitive);
 230 }
 231
 232 /** @brief Set sensitivity of everything in sight */
 233 static void users_details_sensitize_all(void) {
 234   int n;
 235   const char *report = 0;
 236
 237   for(n = 0; n < 32; ++n)
 238     if(users_details_rights[n])
 239       gtk_widget_set_sensitive(users_details_rights[n], users_mode != MODE_NONE);
 240   gtk_widget_set_sensitive(users_details_name, users_mode != MODE_NONE);
 241   gtk_widget_set_sensitive(users_details_email, users_mode != MODE_NONE);
 242   gtk_widget_set_sensitive(users_details_password, users_mode != MODE_NONE);
 243   gtk_widget_set_sensitive(users_details_password2, users_mode != MODE_NONE);
 244   users_details_sensitize(RIGHT_MOVE_ANY);
 245   users_details_sensitize(RIGHT_REMOVE_ANY);
 246   users_details_sensitize(RIGHT_SCRATCH_ANY);
 247   int apply_sensitive = 1;
 248   if(users_mode == MODE_NONE)
 249     apply_sensitive = 0;
 250   else {
 251     const char *name = gtk_entry_get_text(GTK_ENTRY(users_details_name));
 252     const char *email = gtk_entry_get_text(GTK_ENTRY(users_details_email));
 253     const char *pw = gtk_entry_get_text(GTK_ENTRY(users_details_password));
 254     const char *pw2 = gtk_entry_get_text(GTK_ENTRY(users_details_password2));
 255     /* Username must be filled in */
 256     if(!*name) {
 257       apply_sensitive = 0;
 258       if(!report)
 259         report = "Must fill in username";
 260     }
 261     /* Passwords must be nontrivial and match */
 262     if(!*pw) {
 263       apply_sensitive = 0;
 264       if(!report)
 265         report = "Must fill in password";
 266     }
 267     if(strcmp(pw, pw2)) {
 268       apply_sensitive = 0;
 269       if(!report)
 270         report = "Passwords must match";
 271     }
 272     /* Email address must be somewhat valid */
 273     if(*email) {
 274       if(!email_valid(email)) {
 275         apply_sensitive = 0;
 276         report = "Invalid email address";
 277       }
 278     }
 279   }
 280   gtk_widget_set_sensitive(users_apply_button, apply_sensitive);
 281   gtk_widget_set_sensitive(users_delete_button, !!users_selected);
 282   users_set_report(report);
 283 }
 284
 285 /** @brief Called when an _ALL widget is toggled
 286  *
 287  * Modifies sensitivity of the corresponding _MINE and _RANDOM widgets.  We
 288  * just do the lot rather than trying to figure out which one changed,
 289  */
 290 static void users_any_toggled(GtkToggleButton attribute((unused)) *togglebutton,
 291                               gpointer attribute((unused)) user_data) {
 292   users_details_sensitize_all();
 293 }
 294
 295 /** @brief Add a checkbox for a three-right group
 296  * @param title Label for this row
 297  * @param bits Rights bits (not masked or normalized)
 298  * @param mask Mask for this group (must be 7*2^n)
 299  */
 300 static void users_add_right_group(const char *title,
 301                                   rights_type bits,
 302                                   rights_type mask) {
 303   const uint32_t first = mask / 7;
 304   const int bit = leftmost_bit(first);
 305   GtkWidget **widgets = &users_details_rights[bit], *any, *mine, *rnd;
 306
 307   if(!*widgets) {
 308     GtkWidget *hbox = gtk_hbox_new(FALSE, 2);
 309
 310     any = widgets[0] = gtk_check_button_new_with_label("Any");
 311     mine = widgets[1] = gtk_check_button_new_with_label("Own");
 312     rnd = widgets[2] = gtk_check_button_new_with_label("Random");
 313     gtk_box_pack_start(GTK_BOX(hbox), any, FALSE, FALSE, 0);
 314     gtk_box_pack_start(GTK_BOX(hbox), mine, FALSE, FALSE, 0);
 315     gtk_box_pack_start(GTK_BOX(hbox), rnd, FALSE, FALSE, 0);
 316     users_detail_generic(title, hbox);
 317     g_signal_connect(any, "toggled", G_CALLBACK(users_any_toggled), NULL);
 318     users_details_rights[bit] = any;
 319     users_details_rights[bit + 1] = mine;
 320     users_details_rights[bit + 2] = rnd;
 321   } else {
 322     any = widgets[0];
 323     mine = widgets[1];
 324     rnd = widgets[2];
 325   }
 326   /* Discard irrelevant bits */
 327   bits &= mask;
 328   /* Shift down to bits 0-2; the mask is always 3 contiguous bits */
 329   bits >>= bit;
 330   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(any), !!(bits & 1));
 331   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(mine), !!(bits & 2));
 332   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(rnd), !!(bits & 4));
 333 }
 334
 335 /** @brief Called when the details table is destroyed */
 336 static void users_details_destroyed(GtkWidget attribute((unused)) *widget,
 337                                     GtkWidget attribute((unused)) **wp) {
 338   users_details_table = 0;
 339   g_object_unref(users_list);
 340   users_list = 0;
 341   users_details_name = 0;
 342   users_details_email = 0;
 343   users_details_password = 0;
 344   users_details_password2 = 0;
 345   memset(users_details_rights, 0, sizeof users_details_rights);
 346   /* also users_selection?  Not AFAICT; _get_selection does upref */
 347 }
 348
 349 /** @brief Create or modify the user details table
 350  * @param name User name (users_edit()) or NULL (users_add())
 351  * @param email Email address
 352  * @param rights User rights string
 353  * @param password Password
 354  */
 355 static void users_makedetails(const char *name,
 356                               const char *email,
 357                               const char *rights,
 358                               const char *password,
 359                               unsigned nameflags,
 360                               unsigned flags) {
 361   rights_type r = 0;
 362
 363   /* Create the table if it doesn't already exist */
 364   if(!users_details_table) {
 365     users_details_table = gtk_table_new(4, 2, FALSE/*!homogeneous*/);
 366     g_signal_connect(users_details_table, "destroy",
 367                      G_CALLBACK(users_details_destroyed), 0);
 368   }
 369
 370   /* Create or update the widgets */
 371   users_add_detail(&users_details_name, "Username", name,
 372                    (DETAIL_EDITABLE|DETAIL_VISIBLE) & nameflags);
 373
 374   users_add_detail(&users_details_email, "Email", email,
 375                    (DETAIL_EDITABLE|DETAIL_VISIBLE) & flags);
 376
 377   users_add_detail(&users_details_password, "Password", password,
 378                    DETAIL_EDITABLE & flags);
 379   users_add_detail(&users_details_password2, "Password", password,
 380                    DETAIL_EDITABLE & flags);
 381
 382   parse_rights(rights, &r, 0);
 383   users_add_right("Read operations", r, RIGHT_READ);
 384   users_add_right("Play track", r, RIGHT_PLAY);
 385   users_add_right_group("Move", r, RIGHT_MOVE__MASK);
 386   users_add_right_group("Remove", r, RIGHT_REMOVE__MASK);
 387   users_add_right_group("Scratch", r, RIGHT_SCRATCH__MASK);
 388   users_add_right("Set volume", r, RIGHT_VOLUME);
 389   users_add_right("Admin operations", r, RIGHT_ADMIN);
 390   users_add_right("Rescan", r, RIGHT_RESCAN);
 391   users_add_right("Register new users", r, RIGHT_REGISTER);
 392   users_add_right("Modify own userinfo", r, RIGHT_USERINFO);
 393   users_add_right("Modify track preferences", r, RIGHT_PREFS);
 394   users_add_right("Modify global preferences", r, RIGHT_GLOBAL_PREFS);
 395   users_add_right("Pause/resume tracks", r, RIGHT_PAUSE);
 396   users_details_sensitize_all();
 397 }
 398
 399 /** @brief Called when the 'add' button is pressed */
 400 static void users_add(GtkButton attribute((unused)) *button,
 401                       gpointer attribute((unused)) userdata) {
 402   /* Unselect whatever is selected */
 403   gtk_tree_selection_unselect_all(users_selection);
 404   /* Reset the form */
 405   /* TODO it would be better to use the server default_rights if there's no
 406    * client setting. */
 407   users_makedetails("",
 408                     "",
 409                     config->default_rights,
 410                     "",
 411                     DETAIL_EDITABLE|DETAIL_VISIBLE,
 412                     DETAIL_EDITABLE|DETAIL_VISIBLE);
 413   /* Remember we're adding a user */
 414   mode(ADD);
 415 }
 416
 417 static rights_type users_get_rights(void) {
 418   rights_type r = 0;
 419   int n;
 420
 421   /* Extract the rights value */
 422   for(n = 0; n < 32; ++n) {
 423     if(users_details_rights[n])
 424       if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(users_details_rights[n])))
 425          r |= 1 << n;
 426   }
 427   /* Throw out redundant bits */
 428   if(r & RIGHT_REMOVE_ANY)
 429     r &= ~(rights_type)(RIGHT_REMOVE_MINE|RIGHT_REMOVE_RANDOM);
 430   if(r & RIGHT_MOVE_ANY)
 431     r &= ~(rights_type)(RIGHT_MOVE_MINE|RIGHT_MOVE_RANDOM);
 432   if(r & RIGHT_SCRATCH_ANY)
 433     r &= ~(rights_type)(RIGHT_SCRATCH_MINE|RIGHT_SCRATCH_RANDOM);
 434   return r;
 435 }
 436
 437 /** @brief Called when a user setting has been edited */
 438 static void users_edituser_completed(void attribute((unused)) *v,
 439                                      const char *err) {
 440   if(err)
 441     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 442 }
 443
 444 /** @brief Called when a new user has been created */
 445 static void users_adduser_completed(void *v,
 446                                     const char *err) {
 447   if(err) {
 448     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 449     mode(ADD);                          /* Let the user try again */
 450   } else {
 451     const struct kvp *const kvp = v;
 452     const char *user = kvp_get(kvp, "user");
 453     const char *email = kvp_get(kvp, "email"); /* maybe NULL */
 454
 455     /* Now the user is created we can go ahead and set the email address */
 456     if(email)
 457       disorder_eclient_edituser(client, users_edituser_completed, user,
 458                                 "email", email, NULL);
 459     /* Refresh the list of users */
 460     disorder_eclient_users(client, users_got_list, 0);
 461     /* We'll select the newly created user */
 462     users_deferred_select = user;
 463   }
 464 }
 465
 466 /** @brief Called when the 'Apply' button is pressed */
 467 static void users_apply(GtkButton attribute((unused)) *button,
 468                         gpointer attribute((unused)) userdata) {
 469   const char *password;
 470   const char *password2;
 471   const char *name;
 472   const char *email;
 473
 474   switch(users_mode) {
 475   case MODE_NONE:
 476     return;
 477   case MODE_ADD:
 478     name = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_name)));
 479     email = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_email)));
 480     password = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password)));
 481     password2 = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password2)));
 482     if(!*name) {
 483       /* No username.  Really we wanted to desensitize the Apply button when
 484        * there's no userame but there doesn't seem to be a signal to detect
 485        * changes to the entry text.  Consequently we have error messages
 486        * instead.  */
 487       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Must enter a username");
 488       return;
 489     }
 490     if(strcmp(password, password2)) {
 491       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Passwords do not match");
 492       return;
 493     }
 494     if(*email && !strchr(email, '@')) {
 495       /* The server will complain about this but we can give a better error
 496        * message this way */
 497       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Invalid email address");
 498       return;
 499     }
 500     disorder_eclient_adduser(client,
 501                              users_adduser_completed,
 502                              name,
 503                              password,
 504                              rights_string(users_get_rights()),
 505                              kvp_make("user", name,
 506                                       "email", email,
 507                                       (char *)0));
 508     /* We switch to no-op mode while creating the user */
 509     mode(NONE);
 510     break;
 511   case MODE_EDIT:
 512     /* Ugh, can we de-dupe with above? */
 513     email = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_email)));
 514     password = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password)));
 515     password2 = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password2)));
 516     if(strcmp(password, password2)) {
 517       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Passwords do not match");
 518       return;
 519     }
 520     if(*email && !strchr(email, '@')) {
 521       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Invalid email address");
 522       return;
 523     }
 524     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 525                               "email", email, NULL);
 526     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 527                               "password", password, NULL);
 528     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 529                               "rights", rights_string(users_get_rights()), NULL);
 530     /* We remain in edit mode */
 531     break;
 532   }
 533 }
 534
 535 /** @brief Called when a user has been deleted */
 536 static void users_delete_completed(void *v,
 537                                    const char *err) {
 538   if(err)
 539     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 540   else {
 541     const struct kvp *const kvp = v;
 542     const char *const user = kvp_get(kvp, "user");
 543     GtkTreeIter iter[1];
 544
 545     if(!users_find_user(user, iter))           /* Find the user... */
 546       gtk_list_store_remove(users_list, iter); /* ...and remove them */
 547   }
 548 }
 549
 550 /** @brief Called when the 'Delete' button is pressed */
 551 static void users_delete(GtkButton attribute((unused)) *button,
 552                          gpointer attribute((unused)) userdata) {
 553   GtkWidget *yesno;
 554   int res;
 555
 556   if(!users_selected)
 557     return;
 558   yesno = gtk_message_dialog_new(GTK_WINDOW(users_window),
 559                                  GTK_DIALOG_MODAL,
 560                                  GTK_MESSAGE_QUESTION,
 561                                  GTK_BUTTONS_YES_NO,
 562                                  "Do you really want to delete user %s?"
 563                                  " This action cannot be undone.",
 564                                  users_selected);
 565   res = gtk_dialog_run(GTK_DIALOG(yesno));
 566   gtk_widget_destroy(yesno);
 567   if(res == GTK_RESPONSE_YES) {
 568     disorder_eclient_deluser(client, users_delete_completed, users_selected,
 569                              kvp_make("user", users_selected,
 570                                       (char *)0));
 571   }
 572 }
 573
 574 static void users_got_email(void attribute((unused)) *v,
 575                             const char *err,
 576                             const char *value) {
 577   if(err)
 578     popup_protocol_error(0, err);
 579   users_email = value;
 580 }
 581
 582 static void users_got_rights(void attribute((unused)) *v,
 583                              const char *err,
 584                              const char *value) {
 585   if(err)
 586     popup_protocol_error(0, err);
 587   users_rights = value;
 588 }
 589
 590 static void users_got_password(void attribute((unused)) *v,
 591                                const char *err,
 592                                const char *value) {
 593   if(err)
 594     popup_protocol_error(0, err);
 595   /* TODO if an error occurred gathering user info, we should react in some
 596    * different way */
 597   users_password = value;
 598   users_makedetails(users_selected,
 599                     users_email,
 600                     users_rights,
 601                     users_password,
 602                     DETAIL_VISIBLE,
 603                     DETAIL_EDITABLE|DETAIL_VISIBLE);
 604   mode(EDIT);
 605 }
 606
 607 /** @brief Called when the selection MIGHT have changed */
 608 static void users_selection_changed(GtkTreeSelection attribute((unused)) *treeselection,
 609                                     gpointer attribute((unused)) user_data) {
 610   GtkTreeIter iter;
 611   char *gselected, *selected;
 612
 613   /* Identify the current selection */
 614   if(gtk_tree_selection_get_selected(users_selection, 0, &iter)) {
 615     gtk_tree_model_get(GTK_TREE_MODEL(users_list), &iter,
 616                        0, &gselected, -1);
 617     selected = xstrdup(gselected);
 618     g_free(gselected);
 619   } else
 620     selected = 0;
 621   /* Eliminate no-change cases */
 622   if(!selected && !users_selected)
 623     return;
 624   if(selected && users_selected && !strcmp(selected, users_selected))
 625     return;
 626   /* There's been a change; junk the old data and fetch new data in
 627    * background. */
 628   users_selected = selected;
 629   users_makedetails("", "", "", "",
 630                     DETAIL_VISIBLE,
 631                     DETAIL_VISIBLE);
 632   if(users_selected) {
 633     disorder_eclient_userinfo(client, users_got_email, users_selected,
 634                               "email", 0);
 635     disorder_eclient_userinfo(client, users_got_rights, users_selected,
 636                               "rights", 0);
 637     disorder_eclient_userinfo(client, users_got_password, users_selected,
 638                               "password", 0);
 639   }
 640   mode(NONE);                           /* not editing *yet* */
 641 }
 642
 643 static GtkWidget *users_make_reporter() {
 644   if(!users_reporter) {
 645     users_reporter = gtk_label_new("");
 646     gtk_label_set_ellipsize(GTK_LABEL(users_reporter), PANGO_ELLIPSIZE_END);
 647     gtk_misc_set_alignment(GTK_MISC(users_reporter), 0.99, 0);
 648   }
 649   return users_reporter;
 650 }
 651
 652 static void users_set_report(const char *msg) {
 653   gtk_label_set_text(GTK_LABEL(users_make_reporter()), msg ? msg : "");
 654 }
 655
 656 /** @brief Table of buttons below the user list */
 657 static struct button users_buttons[] = {
 658   {
 659     GTK_STOCK_ADD,
 660     users_add,
 661     "Create a new user",
 662     0
 663   },
 664   {
 665     GTK_STOCK_REMOVE,
 666     users_delete,
 667     "Delete a user",
 668     0
 669   },
 670 };
 671 #define NUSERS_BUTTONS (sizeof users_buttons / sizeof *users_buttons)
 672
 673 /** @brief Pop up the user management window */
 674 void manage_users(void) {
 675   GtkWidget *tree, *buttons, *hbox, *hbox2, *vbox, *vbox2;
 676   GtkCellRenderer *cr;
 677   GtkTreeViewColumn *col;
 678
 679   /* If the window already exists just raise it */
 680   if(users_window) {
 681     gtk_window_present(GTK_WINDOW(users_window));
 682     return;
 683   }
 684   /* Create the window */
 685   users_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 686   gtk_widget_set_style(users_window, tool_style);
 687   g_signal_connect(users_window, "destroy",
 688                    G_CALLBACK(gtk_widget_destroyed), &users_window);
 689   gtk_window_set_title(GTK_WINDOW(users_window), "User Management");
 690   /* default size is too small */
 691   gtk_window_set_default_size(GTK_WINDOW(users_window), 240, 240);
 692
 693   /* Create the list of users and populate it asynchronously */
 694   users_list = gtk_list_store_new(1, G_TYPE_STRING);
 695   disorder_eclient_users(client, users_got_list, 0);
 696   /* Create the view */
 697   tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(users_list));
 698   /* ...and the renderers for it */
 699   cr = gtk_cell_renderer_text_new();
 700   col = gtk_tree_view_column_new_with_attributes("Username",
 701                                                  cr,
 702                                                  "text", 0,
 703                                                  NULL);
 704   gtk_tree_view_append_column(GTK_TREE_VIEW(tree), col);
 705   /* Get the selection for the view; set its mode; arrange for a callback when
 706    * it changes */
 707   users_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
 708   gtk_tree_selection_set_mode(users_selection, GTK_SELECTION_BROWSE);
 709   g_signal_connect(users_selection, "changed",
 710                    G_CALLBACK(users_selection_changed), NULL);
 711
 712   /* Create the control buttons */
 713   buttons = create_buttons_box(users_buttons,
 714                                NUSERS_BUTTONS,
 715                                gtk_hbox_new(FALSE, 1));
 716   users_delete_button = users_buttons[1].widget;
 717
 718   /* Buttons live below the list */
 719   vbox = gtk_vbox_new(FALSE, 0);
 720   gtk_box_pack_start(GTK_BOX(vbox), scroll_widget(tree), TRUE/*expand*/, TRUE/*fill*/, 0);
 721   gtk_box_pack_start(GTK_BOX(vbox), buttons, FALSE/*expand*/, FALSE, 0);
 722
 723   /* Create an empty user details table, and put an apply button below it */
 724   users_apply_button = gtk_button_new_from_stock(GTK_STOCK_APPLY);
 725   users_makedetails("", "", "", "",
 726                     DETAIL_VISIBLE,
 727                     DETAIL_VISIBLE);
 728   g_signal_connect(users_apply_button, "clicked",
 729                    G_CALLBACK(users_apply), NULL);
 730   hbox2 = gtk_hbox_new(FALSE, 0);
 731   gtk_box_pack_end(GTK_BOX(hbox2), users_apply_button,
 732                    FALSE/*expand*/, FALSE, 0);
 733
 734   vbox2 = gtk_vbox_new(FALSE, 0);
 735   gtk_box_pack_start(GTK_BOX(vbox2), users_details_table,
 736                      TRUE/*expand*/, TRUE/*fill*/, 0);
 737   gtk_box_pack_start(GTK_BOX(vbox2), gtk_hseparator_new(),
 738                      FALSE/*expand*/, FALSE, 0);
 739   gtk_box_pack_start(GTK_BOX(vbox2), users_make_reporter(),
 740                      FALSE/*expand*/, FALSE, 0);
 741   gtk_box_pack_start(GTK_BOX(vbox2), hbox2,
 742                      FALSE/*expand*/, FALSE, 0);
 743
 744   /* User details are to the right of the list.  We put in a pointless event
 745    * box as as spacer, so that the longest label in the user details isn't
 746    * cuddled up to the user list. */
 747   hbox = gtk_hbox_new(FALSE, 0);
 748   gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE/*expand*/, FALSE, 0);
 749   gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(), FALSE/*expand*/, FALSE, 2);
 750   gtk_box_pack_start(GTK_BOX(hbox), vbox2, TRUE/*expand*/, TRUE/*fill*/, 0);
 751   gtk_container_add(GTK_CONTAINER(users_window), frame_widget(hbox, NULL));
 752 }
 753
 754 /*
 755 Local Variables:
 756 c-basic-offset:2
 757 comment-column:40
 758 fill-column:79
 759 indent-tabs-mode:nil
 760 End:
 761 */