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 3 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,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU 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, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/users.c
  19  * @brief User management for Disobedience
  20  *
  21  * The user management window contains:
  22  * - a list of all the users
  23  * - an add button
  24  * - a delete button
  25  * - a user details panel
  26  * - an apply button
  27  *
  28  * When you select a user that user's details are displayed to the right of the
  29  * list.  Hit the Apply button and any changes are applied.
  30  *
  31  * When you select 'add' a new empty set of details are displayed to be edited.
  32  * Again Apply will commit them.
  33  *
  34  * TODO:
  35  * - enter new username in the GtkTreeView
  36  * - should have a cancel or close button, consistent with properties and login
  37  */
  38
  39 #include "disobedience.h"
  40 #include "bits.h"
  41 #include "sendmail.h"
  42
  43 static void users_details_sensitize_all(void);
  44 static void users_set_report(const char *msg);
  45
  46 static GtkWidget *users_window;
  47 static GtkListStore *users_list;
  48 static GtkTreeSelection *users_selection;
  49
  50 static GtkWidget *users_details_table;
  51 static GtkWidget *users_apply_button;
  52 static GtkWidget *users_delete_button;
  53 static GtkWidget *users_details_name;
  54 static GtkWidget *users_details_email;
  55 static GtkWidget *users_details_password;
  56 static GtkWidget *users_details_password2;
  57 static GtkWidget *users_details_rights[32];
  58 static GtkWidget *users_reporter;
  59 static int users_details_row;
  60 static const char *users_selected;
  61 static const char *users_deferred_select;
  62
  63 static int users_mode;
  64 #define MODE_NONE 0
  65 #define MODE_ADD 1
  66 #define MODE_EDIT 2
  67
  68 #define mode(X) do {                                    \
  69   users_mode = MODE_##X;                                \
  70   if(0) fprintf(stderr, "%s:%d: %s(): mode -> %s\n",    \
  71           __FILE__, __LINE__, __FUNCTION__, #X);        \
  72   users_details_sensitize_all();                        \
  73 } while(0)
  74
  75 static const char *users_email, *users_rights, *users_password;
  76
  77 /** @brief qsort() callback for username comparison */
  78 static int usercmp(const void *a, const void *b) {
  79   return strcmp(*(char **)a, *(char **)b);
  80 }
  81
  82 /** @brief Find a user
  83  * @param user User to find
  84  * @param iter Iterator to point at user
  85  * @return 0 on success, -1 if not found
  86  */
  87 static int users_find_user(const char *user,
  88                            GtkTreeIter *iter) {
  89   char *who;
  90
  91   /* Find the user */
  92   if(!gtk_tree_model_get_iter_first(GTK_TREE_MODEL(users_list), iter))
  93     return -1;
  94   do {
  95     gtk_tree_model_get(GTK_TREE_MODEL(users_list), iter,
  96                        0, &who, -1);
  97     if(!strcmp(who, user)) {
  98       g_free(who);
  99       return 0;
 100     }
 101     g_free(who);
 102   } while(gtk_tree_model_iter_next(GTK_TREE_MODEL(users_list), iter));
 103   return -1;
 104 }
 105
 106 /** @brief Called with the list of users
 107  *
 108  * Called:
 109  * - at startup to populate the initial list
 110  * - when we add a user
 111  * - maybe in the future when we delete a user
 112  *
 113  * If users_deferred_select is set then that user is selected.
 114  */
 115 static void users_got_list(void attribute((unused)) *v,
 116                            const char *err,
 117                            int nvec, char **vec) {
 118   int n;
 119   GtkTreeIter iter;
 120
 121   if(err) {
 122     popup_protocol_error(0, err);
 123     return;
 124   }
 125   /* Present users in alphabetical order */
 126   qsort(vec, nvec, sizeof (char *), usercmp);
 127   /* Set the list contents */
 128   gtk_list_store_clear(users_list);
 129   for(n = 0; n < nvec; ++n)
 130     gtk_list_store_insert_with_values(users_list, &iter, n/*position*/,
 131                                       0, vec[n], /* column 0 */
 132                                       -1);       /* no more columns */
 133   /* Only show the window when the list is populated */
 134   gtk_widget_show_all(users_window);
 135   if(users_deferred_select) {
 136     if(!users_find_user(users_deferred_select, &iter))
 137       gtk_tree_selection_select_iter(users_selection, &iter);
 138     users_deferred_select = 0;
 139   }
 140 }
 141
 142 /** @brief Text should be visible */
 143 #define DETAIL_VISIBLE 1
 144
 145 /** @brief Text should be editable */
 146 #define DETAIL_EDITABLE 2
 147
 148 /** @brief Add a row to the user detail table */
 149 static void users_detail_generic(const char *title,
 150                                  GtkWidget *selector) {
 151   const int row = users_details_row++;
 152   GtkWidget *const label = gtk_label_new(title);
 153   gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 154   gtk_table_attach(GTK_TABLE(users_details_table),
 155                    label,
 156                    0, 1,                /* left/right_attach */
 157                    row, row+1,          /* top/bottom_attach */
 158                    GTK_FILL,            /* xoptions */
 159                    0,                   /* yoptions */
 160                    1, 1);               /* x/ypadding */
 161   gtk_table_attach(GTK_TABLE(users_details_table),
 162                    selector,
 163                    1, 2,                /* left/right_attach */
 164                    row, row + 1,        /* top/bottom_attach */
 165                    GTK_EXPAND|GTK_FILL, /* xoptions */
 166                    GTK_FILL,            /* yoptions */
 167                    1, 1);               /* x/ypadding */
 168 }
 169
 170 static void users_entry_changed(GtkEditable attribute((unused)) *editable,
 171                                 gpointer attribute((unused)) user_data) {
 172   users_details_sensitize_all();
 173 }
 174
 175 /** @brief Add a row to the user details table
 176  * @param entryp Where to put GtkEntry
 177  * @param title Label for this row
 178  * @param value Initial value or NULL
 179  * @param flags Flags word
 180  */
 181 static void users_add_detail(GtkWidget **entryp,
 182                              const char *title,
 183                              const char *value,
 184                              unsigned flags) {
 185   GtkWidget *entry;
 186
 187   if(!(entry = *entryp)) {
 188     *entryp = entry = gtk_entry_new();
 189     g_signal_connect(entry, "changed",
 190                      G_CALLBACK(users_entry_changed), 0);
 191     users_detail_generic(title, entry);
 192   }
 193   gtk_entry_set_visibility(GTK_ENTRY(entry),
 194                            !!(flags & DETAIL_VISIBLE));
 195   gtk_editable_set_editable(GTK_EDITABLE(entry),
 196                             !!(flags & DETAIL_EDITABLE));
 197   gtk_entry_set_text(GTK_ENTRY(entry), value ? value : "");
 198 }
 199
 200 /** @brief Add a checkbox for a right
 201  * @param title Label for this row
 202  * @param value Current value
 203  * @param right Right bit
 204  */
 205 static void users_add_right(const char *title,
 206                             rights_type value,
 207                             rights_type right) {
 208   GtkWidget *check;
 209   GtkWidget **checkp = &users_details_rights[leftmost_bit(right)];
 210
 211   if(!(check = *checkp)) {
 212     *checkp = check = gtk_check_button_new_with_label("");
 213     users_detail_generic(title, check);
 214   }
 215   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), !!(value & right));
 216 }
 217
 218 /** @brief Set sensitivity of particular mine/random rights bits */
 219 static void users_details_sensitize(rights_type r) {
 220   const int bit = leftmost_bit(r);
 221   const GtkWidget *all = users_details_rights[bit];
 222   const int sensitive = (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(all))
 223                          && users_mode != MODE_NONE);
 224
 225   gtk_widget_set_sensitive(users_details_rights[bit + 1], sensitive);
 226   gtk_widget_set_sensitive(users_details_rights[bit + 2], sensitive);
 227 }
 228
 229 /** @brief Set sensitivity of everything in sight */
 230 static void users_details_sensitize_all(void) {
 231   int n;
 232   const char *report = 0;
 233
 234   for(n = 0; n < 32; ++n)
 235     if(users_details_rights[n])
 236       gtk_widget_set_sensitive(users_details_rights[n], users_mode != MODE_NONE);
 237   gtk_widget_set_sensitive(users_details_name, users_mode != MODE_NONE);
 238   gtk_widget_set_sensitive(users_details_email, users_mode != MODE_NONE);
 239   gtk_widget_set_sensitive(users_details_password, users_mode != MODE_NONE);
 240   gtk_widget_set_sensitive(users_details_password2, users_mode != MODE_NONE);
 241   users_details_sensitize(RIGHT_MOVE_ANY);
 242   users_details_sensitize(RIGHT_REMOVE_ANY);
 243   users_details_sensitize(RIGHT_SCRATCH_ANY);
 244   int apply_sensitive = 1;
 245   if(users_mode == MODE_NONE)
 246     apply_sensitive = 0;
 247   else {
 248     const char *name = gtk_entry_get_text(GTK_ENTRY(users_details_name));
 249     const char *email = gtk_entry_get_text(GTK_ENTRY(users_details_email));
 250     const char *pw = gtk_entry_get_text(GTK_ENTRY(users_details_password));
 251     const char *pw2 = gtk_entry_get_text(GTK_ENTRY(users_details_password2));
 252     /* Username must be filled in */
 253     if(!*name) {
 254       apply_sensitive = 0;
 255       if(!report)
 256         report = "Must fill in username";
 257     }
 258     /* Passwords must be nontrivial and match */
 259     if(!*pw) {
 260       apply_sensitive = 0;
 261       if(!report)
 262         report = "Must fill in password";
 263     }
 264     if(strcmp(pw, pw2)) {
 265       apply_sensitive = 0;
 266       if(!report)
 267         report = "Passwords must match";
 268     }
 269     /* Email address must be somewhat valid */
 270     if(*email) {
 271       if(!email_valid(email)) {
 272         apply_sensitive = 0;
 273         report = "Invalid email address";
 274       }
 275     }
 276   }
 277   gtk_widget_set_sensitive(users_apply_button, apply_sensitive);
 278   gtk_widget_set_sensitive(users_delete_button, !!users_selected);
 279   users_set_report(report);
 280 }
 281
 282 /** @brief Called when an _ALL widget is toggled
 283  *
 284  * Modifies sensitivity of the corresponding _MINE and _RANDOM widgets.  We
 285  * just do the lot rather than trying to figure out which one changed,
 286  */
 287 static void users_any_toggled(GtkToggleButton attribute((unused)) *togglebutton,
 288                               gpointer attribute((unused)) user_data) {
 289   users_details_sensitize_all();
 290 }
 291
 292 /** @brief Add a checkbox for a three-right group
 293  * @param title Label for this row
 294  * @param bits Rights bits (not masked or normalized)
 295  * @param mask Mask for this group (must be 7*2^n)
 296  */
 297 static void users_add_right_group(const char *title,
 298                                   rights_type bits,
 299                                   rights_type mask) {
 300   const uint32_t first = mask / 7;
 301   const int bit = leftmost_bit(first);
 302   GtkWidget **widgets = &users_details_rights[bit], *any, *mine, *rnd;
 303
 304   if(!*widgets) {
 305     GtkWidget *hbox = gtk_hbox_new(FALSE, 2);
 306
 307     any = widgets[0] = gtk_check_button_new_with_label("Any");
 308     mine = widgets[1] = gtk_check_button_new_with_label("Own");
 309     rnd = widgets[2] = gtk_check_button_new_with_label("Random");
 310     gtk_box_pack_start(GTK_BOX(hbox), any, FALSE, FALSE, 0);
 311     gtk_box_pack_start(GTK_BOX(hbox), mine, FALSE, FALSE, 0);
 312     gtk_box_pack_start(GTK_BOX(hbox), rnd, FALSE, FALSE, 0);
 313     users_detail_generic(title, hbox);
 314     g_signal_connect(any, "toggled", G_CALLBACK(users_any_toggled), NULL);
 315     users_details_rights[bit] = any;
 316     users_details_rights[bit + 1] = mine;
 317     users_details_rights[bit + 2] = rnd;
 318   } else {
 319     any = widgets[0];
 320     mine = widgets[1];
 321     rnd = widgets[2];
 322   }
 323   /* Discard irrelevant bits */
 324   bits &= mask;
 325   /* Shift down to bits 0-2; the mask is always 3 contiguous bits */
 326   bits >>= bit;
 327   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(any), !!(bits & 1));
 328   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(mine), !!(bits & 2));
 329   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(rnd), !!(bits & 4));
 330 }
 331
 332 /** @brief Called when the details table is destroyed */
 333 static void users_details_destroyed(GtkWidget attribute((unused)) *widget,
 334                                     GtkWidget attribute((unused)) **wp) {
 335   users_details_table = 0;
 336   g_object_unref(users_list);
 337   users_list = 0;
 338   users_details_name = 0;
 339   users_details_email = 0;
 340   users_details_password = 0;
 341   users_details_password2 = 0;
 342   memset(users_details_rights, 0, sizeof users_details_rights);
 343   /* also users_selection?  Not AFAICT; _get_selection does upref */
 344 }
 345
 346 /** @brief Create or modify the user details table
 347  * @param name User name (users_edit()) or NULL (users_add())
 348  * @param email Email address
 349  * @param rights User rights string
 350  * @param password Password
 351  */
 352 static void users_makedetails(const char *name,
 353                               const char *email,
 354                               const char *rights,
 355                               const char *password,
 356                               unsigned nameflags,
 357                               unsigned flags) {
 358   rights_type r = 0;
 359
 360   /* Create the table if it doesn't already exist */
 361   if(!users_details_table) {
 362     users_details_table = gtk_table_new(4, 2, FALSE/*!homogeneous*/);
 363     g_signal_connect(users_details_table, "destroy",
 364                      G_CALLBACK(users_details_destroyed), 0);
 365   }
 366
 367   /* Create or update the widgets */
 368   users_add_detail(&users_details_name, "Username", name,
 369                    (DETAIL_EDITABLE|DETAIL_VISIBLE) & nameflags);
 370
 371   users_add_detail(&users_details_email, "Email", email,
 372                    (DETAIL_EDITABLE|DETAIL_VISIBLE) & flags);
 373
 374   users_add_detail(&users_details_password, "Password", password,
 375                    DETAIL_EDITABLE & flags);
 376   users_add_detail(&users_details_password2, "Password", password,
 377                    DETAIL_EDITABLE & flags);
 378
 379   parse_rights(rights, &r, 0);
 380   users_add_right("Read operations", r, RIGHT_READ);
 381   users_add_right("Play track", r, RIGHT_PLAY);
 382   users_add_right_group("Move", r, RIGHT_MOVE__MASK);
 383   users_add_right_group("Remove", r, RIGHT_REMOVE__MASK);
 384   users_add_right_group("Scratch", r, RIGHT_SCRATCH__MASK);
 385   users_add_right("Set volume", r, RIGHT_VOLUME);
 386   users_add_right("Admin operations", r, RIGHT_ADMIN);
 387   users_add_right("Rescan", r, RIGHT_RESCAN);
 388   users_add_right("Register new users", r, RIGHT_REGISTER);
 389   users_add_right("Modify own userinfo", r, RIGHT_USERINFO);
 390   users_add_right("Modify track preferences", r, RIGHT_PREFS);
 391   users_add_right("Modify global preferences", r, RIGHT_GLOBAL_PREFS);
 392   users_add_right("Pause/resume tracks", r, RIGHT_PAUSE);
 393   users_details_sensitize_all();
 394 }
 395
 396 /** @brief Called when the 'add' button is pressed */
 397 static void users_add(GtkButton attribute((unused)) *button,
 398                       gpointer attribute((unused)) userdata) {
 399   /* Unselect whatever is selected */
 400   gtk_tree_selection_unselect_all(users_selection);
 401   /* Reset the form */
 402   /* TODO it would be better to use the server default_rights if there's no
 403    * client setting. */
 404   users_makedetails("",
 405                     "",
 406                     config->default_rights,
 407                     "",
 408                     DETAIL_EDITABLE|DETAIL_VISIBLE,
 409                     DETAIL_EDITABLE|DETAIL_VISIBLE);
 410   /* Remember we're adding a user */
 411   mode(ADD);
 412 }
 413
 414 static rights_type users_get_rights(void) {
 415   rights_type r = 0;
 416   int n;
 417
 418   /* Extract the rights value */
 419   for(n = 0; n < 32; ++n) {
 420     if(users_details_rights[n])
 421       if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(users_details_rights[n])))
 422          r |= 1 << n;
 423   }
 424   /* Throw out redundant bits */
 425   if(r & RIGHT_REMOVE_ANY)
 426     r &= ~(rights_type)(RIGHT_REMOVE_MINE|RIGHT_REMOVE_RANDOM);
 427   if(r & RIGHT_MOVE_ANY)
 428     r &= ~(rights_type)(RIGHT_MOVE_MINE|RIGHT_MOVE_RANDOM);
 429   if(r & RIGHT_SCRATCH_ANY)
 430     r &= ~(rights_type)(RIGHT_SCRATCH_MINE|RIGHT_SCRATCH_RANDOM);
 431   return r;
 432 }
 433
 434 /** @brief Called when a user setting has been edited */
 435 static void users_edituser_completed(void attribute((unused)) *v,
 436                                      const char *err) {
 437   if(err)
 438     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 439 }
 440
 441 /** @brief Called when a new user has been created */
 442 static void users_adduser_completed(void *v,
 443                                     const char *err) {
 444   if(err) {
 445     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 446     mode(ADD);                          /* Let the user try again */
 447   } else {
 448     const struct kvp *const kvp = v;
 449     const char *user = kvp_get(kvp, "user");
 450     const char *email = kvp_get(kvp, "email"); /* maybe NULL */
 451
 452     /* Now the user is created we can go ahead and set the email address */
 453     if(email)
 454       disorder_eclient_edituser(client, users_edituser_completed, user,
 455                                 "email", email, NULL);
 456     /* Refresh the list of users */
 457     disorder_eclient_users(client, users_got_list, 0);
 458     /* We'll select the newly created user */
 459     users_deferred_select = user;
 460   }
 461 }
 462
 463 /** @brief Called when the 'Apply' button is pressed */
 464 static void users_apply(GtkButton attribute((unused)) *button,
 465                         gpointer attribute((unused)) userdata) {
 466   const char *password;
 467   const char *password2;
 468   const char *name;
 469   const char *email;
 470
 471   switch(users_mode) {
 472   case MODE_NONE:
 473     return;
 474   case MODE_ADD:
 475     name = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_name)));
 476     email = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_email)));
 477     password = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password)));
 478     password2 = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password2)));
 479     if(!*name) {
 480       /* No username.  Really we wanted to desensitize the Apply button when
 481        * there's no userame but there doesn't seem to be a signal to detect
 482        * changes to the entry text.  Consequently we have error messages
 483        * instead.  */
 484       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Must enter a username");
 485       return;
 486     }
 487     if(strcmp(password, password2)) {
 488       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Passwords do not match");
 489       return;
 490     }
 491     if(*email && !strchr(email, '@')) {
 492       /* The server will complain about this but we can give a better error
 493        * message this way */
 494       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Invalid email address");
 495       return;
 496     }
 497     disorder_eclient_adduser(client,
 498                              users_adduser_completed,
 499                              name,
 500                              password,
 501                              rights_string(users_get_rights()),
 502                              kvp_make("user", name,
 503                                       "email", email,
 504                                       (char *)0));
 505     /* We switch to no-op mode while creating the user */
 506     mode(NONE);
 507     break;
 508   case MODE_EDIT:
 509     /* Ugh, can we de-dupe with above? */
 510     email = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_email)));
 511     password = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password)));
 512     password2 = xstrdup(gtk_entry_get_text(GTK_ENTRY(users_details_password2)));
 513     if(strcmp(password, password2)) {
 514       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Passwords do not match");
 515       return;
 516     }
 517     if(*email && !strchr(email, '@')) {
 518       popup_submsg(users_window, GTK_MESSAGE_ERROR, "Invalid email address");
 519       return;
 520     }
 521     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 522                               "email", email, NULL);
 523     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 524                               "password", password, NULL);
 525     disorder_eclient_edituser(client, users_edituser_completed, users_selected,
 526                               "rights", rights_string(users_get_rights()), NULL);
 527     /* We remain in edit mode */
 528     break;
 529   }
 530 }
 531
 532 /** @brief Called when a user has been deleted */
 533 static void users_delete_completed(void *v,
 534                                    const char *err) {
 535   if(err)
 536     popup_submsg(users_window, GTK_MESSAGE_ERROR, err);
 537   else {
 538     const struct kvp *const kvp = v;
 539     const char *const user = kvp_get(kvp, "user");
 540     GtkTreeIter iter[1];
 541
 542     if(!users_find_user(user, iter))           /* Find the user... */
 543       gtk_list_store_remove(users_list, iter); /* ...and remove them */
 544   }
 545 }
 546
 547 /** @brief Called when the 'Delete' button is pressed */
 548 static void users_delete(GtkButton attribute((unused)) *button,
 549                          gpointer attribute((unused)) userdata) {
 550   GtkWidget *yesno;
 551   int res;
 552
 553   if(!users_selected)
 554     return;
 555   yesno = gtk_message_dialog_new(GTK_WINDOW(users_window),
 556                                  GTK_DIALOG_MODAL,
 557                                  GTK_MESSAGE_QUESTION,
 558                                  GTK_BUTTONS_YES_NO,
 559                                  "Do you really want to delete user %s?"
 560                                  " This action cannot be undone.",
 561                                  users_selected);
 562   res = gtk_dialog_run(GTK_DIALOG(yesno));
 563   gtk_widget_destroy(yesno);
 564   if(res == GTK_RESPONSE_YES) {
 565     disorder_eclient_deluser(client, users_delete_completed, users_selected,
 566                              kvp_make("user", users_selected,
 567                                       (char *)0));
 568   }
 569 }
 570
 571 static void users_got_email(void attribute((unused)) *v,
 572                             const char *err,
 573                             const char *value) {
 574   if(err)
 575     popup_protocol_error(0, err);
 576   users_email = value;
 577 }
 578
 579 static void users_got_rights(void attribute((unused)) *v,
 580                              const char *err,
 581                              const char *value) {
 582   if(err)
 583     popup_protocol_error(0, err);
 584   users_rights = value;
 585 }
 586
 587 static void users_got_password(void attribute((unused)) *v,
 588                                const char *err,
 589                                const char *value) {
 590   if(err)
 591     popup_protocol_error(0, err);
 592   /* TODO if an error occurred gathering user info, we should react in some
 593    * different way */
 594   users_password = value;
 595   users_makedetails(users_selected,
 596                     users_email,
 597                     users_rights,
 598                     users_password,
 599                     DETAIL_VISIBLE,
 600                     DETAIL_EDITABLE|DETAIL_VISIBLE);
 601   mode(EDIT);
 602 }
 603
 604 /** @brief Called when the selection MIGHT have changed */
 605 static void users_selection_changed(GtkTreeSelection attribute((unused)) *treeselection,
 606                                     gpointer attribute((unused)) user_data) {
 607   GtkTreeIter iter;
 608   char *gselected, *selected;
 609
 610   /* Identify the current selection */
 611   if(gtk_tree_selection_get_selected(users_selection, 0, &iter)) {
 612     gtk_tree_model_get(GTK_TREE_MODEL(users_list), &iter,
 613                        0, &gselected, -1);
 614     selected = xstrdup(gselected);
 615     g_free(gselected);
 616   } else
 617     selected = 0;
 618   /* Eliminate no-change cases */
 619   if(!selected && !users_selected)
 620     return;
 621   if(selected && users_selected && !strcmp(selected, users_selected))
 622     return;
 623   /* There's been a change; junk the old data and fetch new data in
 624    * background. */
 625   users_selected = selected;
 626   users_makedetails("", "", "", "",
 627                     DETAIL_VISIBLE,
 628                     DETAIL_VISIBLE);
 629   if(users_selected) {
 630     disorder_eclient_userinfo(client, users_got_email, users_selected,
 631                               "email", 0);
 632     disorder_eclient_userinfo(client, users_got_rights, users_selected,
 633                               "rights", 0);
 634     disorder_eclient_userinfo(client, users_got_password, users_selected,
 635                               "password", 0);
 636   }
 637   mode(NONE);                           /* not editing *yet* */
 638 }
 639
 640 static GtkWidget *users_make_reporter() {
 641   if(!users_reporter) {
 642     users_reporter = gtk_label_new("");
 643     gtk_label_set_ellipsize(GTK_LABEL(users_reporter), PANGO_ELLIPSIZE_END);
 644     gtk_misc_set_alignment(GTK_MISC(users_reporter), 0.99, 0);
 645     g_signal_connect(users_reporter, "destroy",
 646                      G_CALLBACK(gtk_widget_destroyed), &users_reporter);
 647   }
 648   return users_reporter;
 649 }
 650
 651 static void users_set_report(const char *msg) {
 652   gtk_label_set_text(GTK_LABEL(users_make_reporter()), msg ? msg : "");
 653 }
 654
 655 /** @brief Table of buttons below the user list */
 656 static struct button users_buttons[] = {
 657   {
 658     GTK_STOCK_ADD,
 659     users_add,
 660     "Create a new user",
 661     0
 662   },
 663   {
 664     GTK_STOCK_REMOVE,
 665     users_delete,
 666     "Delete a user",
 667     0
 668   },
 669 };
 670 #define NUSERS_BUTTONS (sizeof users_buttons / sizeof *users_buttons)
 671
 672 /** @brief Keypress handler */
 673 static gboolean users_keypress(GtkWidget attribute((unused)) *widget,
 674                                GdkEventKey *event,
 675                                gpointer attribute((unused)) user_data) {
 676   if(event->state)
 677     return FALSE;
 678   switch(event->keyval) {
 679   case GDK_Escape:
 680     gtk_widget_destroy(users_window);
 681     return TRUE;
 682   default:
 683     return FALSE;
 684   }
 685 }
 686
 687 /** @brief Pop up the user management window */
 688 void manage_users(void) {
 689   GtkWidget *tree, *buttons, *hbox, *hbox2, *vbox, *vbox2;
 690   GtkCellRenderer *cr;
 691   GtkTreeViewColumn *col;
 692
 693   /* If the window already exists just raise it */
 694   if(users_window) {
 695     gtk_window_present(GTK_WINDOW(users_window));
 696     return;
 697   }
 698   /* Destroy old widgets */
 699   if(users_reporter)
 700     gtk_widget_destroy(users_reporter);
 701   /* Create the window */
 702   users_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 703   gtk_widget_set_style(users_window, tool_style);
 704   g_signal_connect(users_window, "destroy",
 705                    G_CALLBACK(gtk_widget_destroyed), &users_window);
 706   gtk_window_set_title(GTK_WINDOW(users_window), "User Management");
 707   /* Keyboard shortcuts */
 708   g_signal_connect(users_window, "key-press-event",
 709                    G_CALLBACK(users_keypress), 0);
 710   /* default size is too small */
 711   gtk_window_set_default_size(GTK_WINDOW(users_window), 240, 240);
 712
 713   /* Create the list of users and populate it asynchronously */
 714   users_list = gtk_list_store_new(1, G_TYPE_STRING);
 715   disorder_eclient_users(client, users_got_list, 0);
 716   /* Create the view */
 717   tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(users_list));
 718   /* ...and the renderers for it */
 719   cr = gtk_cell_renderer_text_new();
 720   col = gtk_tree_view_column_new_with_attributes("Username",
 721                                                  cr,
 722                                                  "text", 0,
 723                                                  NULL);
 724   gtk_tree_view_append_column(GTK_TREE_VIEW(tree), col);
 725   /* Get the selection for the view; set its mode; arrange for a callback when
 726    * it changes */
 727   users_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
 728   gtk_tree_selection_set_mode(users_selection, GTK_SELECTION_BROWSE);
 729   g_signal_connect(users_selection, "changed",
 730                    G_CALLBACK(users_selection_changed), NULL);
 731
 732   /* Create the control buttons */
 733   buttons = create_buttons_box(users_buttons,
 734                                NUSERS_BUTTONS,
 735                                gtk_hbox_new(FALSE, 1));
 736   users_delete_button = users_buttons[1].widget;
 737
 738   /* Buttons live below the list */
 739   vbox = gtk_vbox_new(FALSE, 0);
 740   gtk_box_pack_start(GTK_BOX(vbox), scroll_widget(tree), TRUE/*expand*/, TRUE/*fill*/, 0);
 741   gtk_box_pack_start(GTK_BOX(vbox), buttons, FALSE/*expand*/, FALSE, 0);
 742
 743   /* Create an empty user details table, and put an apply button below it */
 744   users_apply_button = gtk_button_new_from_stock(GTK_STOCK_APPLY);
 745   users_makedetails("", "", "", "",
 746                     DETAIL_VISIBLE,
 747                     DETAIL_VISIBLE);
 748   g_signal_connect(users_apply_button, "clicked",
 749                    G_CALLBACK(users_apply), NULL);
 750   hbox2 = gtk_hbox_new(FALSE, 0);
 751   gtk_box_pack_end(GTK_BOX(hbox2), users_apply_button,
 752                    FALSE/*expand*/, FALSE, 0);
 753
 754   vbox2 = gtk_vbox_new(FALSE, 0);
 755   gtk_box_pack_start(GTK_BOX(vbox2), users_details_table,
 756                      TRUE/*expand*/, TRUE/*fill*/, 0);
 757   gtk_box_pack_start(GTK_BOX(vbox2), gtk_hseparator_new(),
 758                      FALSE/*expand*/, FALSE, 0);
 759   gtk_box_pack_start(GTK_BOX(vbox2), users_make_reporter(),
 760                      FALSE/*expand*/, FALSE, 0);
 761   gtk_box_pack_start(GTK_BOX(vbox2), hbox2,
 762                      FALSE/*expand*/, FALSE, 0);
 763
 764   /* User details are to the right of the list.  We put in a pointless event
 765    * box as as spacer, so that the longest label in the user details isn't
 766    * cuddled up to the user list. */
 767   hbox = gtk_hbox_new(FALSE, 0);
 768   gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE/*expand*/, FALSE, 0);
 769   gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(), FALSE/*expand*/, FALSE, 2);
 770   gtk_box_pack_start(GTK_BOX(hbox), vbox2, TRUE/*expand*/, TRUE/*fill*/, 0);
 771   gtk_container_add(GTK_CONTAINER(users_window), frame_widget(hbox, NULL));
 772 }
 773
 774 /*
 775 Local Variables:
 776 c-basic-offset:2
 777 comment-column:40
 778 fill-column:79
 779 indent-tabs-mode:nil
 780 End:
 781 */