SharedWebCredentialViewService/SWCViewController.m

   1 //
   2 //  SWCViewController.m
   3 //  SharedWebCredentialViewService
   4 //
   5 //  Copyright (c) 2014 Apple Inc. All Rights Reserved.
   6 //
   7
   8 #import <Foundation/NSXPCConnection.h>
   9 #import "SWCViewController.h"
  10 #import <UIKit/UIViewController_Private.h>
  11 #import <UIKit/UIFont_Private.h>
  12 #import <UIKit/UIImage_SymbolImagePrivate.h>
  13 #import <UIKit/UIAlertController_Private.h>
  14 #import <UIKit/UITableViewCell_Private.h>
  15
  16 #include <bsm/libbsm.h>
  17 #include <ipc/securityd_client.h>
  18
  19 #include "SharedWebCredential/swcagent_client.h"
  20
  21 #import "SWCViewController.h"
  22
  23 const NSString* SWC_PASSWORD_KEY = @"spwd";
  24 const NSString* SWC_ACCOUNT_KEY  = @"acct";
  25 const NSString* SWC_SERVER_KEY   = @"srvr";
  26
  27 //
  28 // SWCDictionaryAdditions
  29 //
  30
  31 @interface NSDictionary (SWCDictionaryAdditions)
  32 - (NSComparisonResult) compareCredentialDictionaryAscending:(NSDictionary *)other;
  33 @end
  34
  35 @implementation NSDictionary (SWCDictionaryAdditions)
  36 - (NSComparisonResult)compareCredentialDictionaryAscending:(NSDictionary *)other
  37 {
  38     NSComparisonResult result;
  39     NSString *str1 = [self objectForKey:SWC_ACCOUNT_KEY], *str2 = [other objectForKey:SWC_ACCOUNT_KEY];
  40     if (!str1) str1 = @"";
  41     if (!str2) str2 = @"";
  42
  43     // primary sort by account name
  44     result = [str1 localizedCaseInsensitiveCompare:str2];
  45     if (result == NSOrderedSame) {
  46         // secondary sort by domain name
  47         NSString *str3 = [self objectForKey:SWC_SERVER_KEY], *str4 = [other objectForKey:SWC_SERVER_KEY];
  48         if (!str3) str3 = @"";
  49         if (!str4) str4 = @"";
  50
  51         result = [str3 localizedCaseInsensitiveCompare:str4];
  52     }
  53
  54     return result;
  55 }
  56 @end
  57
  58
  59 //
  60 // SWCItemCell
  61 //
  62 @interface SWCItemCell : UITableViewCell
  63 {
  64     NSDictionary *_dict;
  65     BOOL _isTicked;
  66     UIView *_bottomLine;
  67     UIView *_bottomLineSelected;
  68     UIView *_topLine;
  69     UIView *_topLineSelected;
  70     BOOL _showSeparator;
  71     BOOL _showTopSeparator;
  72 }
  73
  74 - (id)initWithDictionary:(NSDictionary *)dict;
  75 @property (nonatomic, readonly) id userInfo;
  76 @property (nonatomic, assign) BOOL showSeparator;
  77 @end
  78
  79 @implementation SWCItemCell
  80
  81 @synthesize showSeparator = _showSeparator;
  82
  83 - (id)initWithDictionary:(NSDictionary *)dict
  84 {
  85     if ((self = [super initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:nil]))
  86     {
  87         _dict = dict;
  88
  89         self.selectionStyle = UITableViewCellSelectionStyleNone;
  90
  91         self.backgroundColor = [UIColor systemBackgroundColor];
  92
  93         self.textLabel.textColor = [UIColor labelColor];
  94         self.textLabel.textAlignment = NSTextAlignmentLeft;
  95         self.textLabel.adjustsFontSizeToFitWidth = YES;
  96         self.textLabel.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
  97
  98         NSString *title = [dict objectForKey:SWC_ACCOUNT_KEY];
  99         self.textLabel.text = title ? title : NSLocalizedString(@"--", nil);
 100
 101         self.detailTextLabel.textColor = [UIColor secondaryLabelColor];
 102         self.detailTextLabel.textAlignment = NSTextAlignmentLeft;
 103         self.detailTextLabel.adjustsFontSizeToFitWidth = YES;
 104         self.detailTextLabel.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
 105
 106         NSString *subtitle = [dict objectForKey:SWC_SERVER_KEY];
 107         self.detailTextLabel.text = subtitle ? subtitle : NSLocalizedString(@"--", nil);
 108
 109         self.backgroundView = [[UIView alloc] init];
 110         self.backgroundView.backgroundColor = [UIColor systemBackgroundColor];
 111
 112         self.imageView.image = [UIImage symbolImageNamed:@"checkmark"];
 113         self.imageView.hidden = YES;
 114     }
 115
 116     return self;
 117 }
 118
 119 - (void)setTicked: (BOOL) selected
 120 {
 121     _isTicked = selected;
 122 }
 123
 124 - (void)layoutSubviews
 125 {
 126
 127     if (_bottomLine) {
 128         CGFloat scale = [[UIScreen mainScreen] scale];
 129         [_bottomLine setFrame:CGRectMake(0, self.frame.size.height - (1 / scale), self.frame.size.width, 1 / scale)];
 130     }
 131
 132     if (_bottomLineSelected) {
 133         CGFloat scale = [[UIScreen mainScreen] scale];
 134         [_bottomLineSelected setFrame:CGRectMake(0, self.frame.size.height - (1 / scale), self.frame.size.width, 1 / scale)];
 135     }
 136
 137     if (_topLine) {
 138         CGFloat scale = [[UIScreen mainScreen] scale];
 139         [_topLine setFrame:CGRectMake(0, 0, self.frame.size.width, 1 / scale)];
 140     }
 141
 142     if (_topLineSelected) {
 143         CGFloat scale = [[UIScreen mainScreen] scale];
 144         [_topLineSelected setFrame:CGRectMake(0, 0, self.frame.size.width, 1 / scale)];
 145     }
 146
 147     if (_isTicked)
 148     {
 149         self.imageView.hidden = NO;
 150     } else {
 151         self.imageView.hidden = YES;
 152     }
 153
 154     [super layoutSubviews];
 155
 156 }
 157
 158 - (void)setShowSeparator:(BOOL)showSeparator {
 159     if (_showSeparator != showSeparator) {
 160         _showSeparator = showSeparator;
 161
 162         if (_showSeparator) {
 163             if (!_bottomLine) {
 164                 CGRect rectZero = CGRectMake(0, 0, 0, 0);
 165                 _bottomLine = [[UIView alloc] initWithFrame:rectZero];
 166                 _bottomLine.backgroundColor = [UIColor separatorColor];
 167                 [self.backgroundView addSubview:_bottomLine];
 168             }
 169             if (!_bottomLineSelected) {
 170                 CGRect rectZero = CGRectMake(0, 0, 0, 0);
 171                 _bottomLineSelected = [[UIView alloc] initWithFrame:rectZero];
 172                 _bottomLineSelected.backgroundColor = [UIColor separatorColor];
 173                 [self.selectedBackgroundView addSubview: _bottomLineSelected];
 174             }
 175
 176         } else {
 177             if (_bottomLine) {
 178                 [_bottomLine removeFromSuperview];
 179                 _bottomLine = nil;
 180             }
 181             if (_bottomLineSelected) {
 182                 [_bottomLineSelected removeFromSuperview];
 183                 _bottomLineSelected = nil;
 184             }
 185         }
 186     }
 187 }
 188
 189 - (void)setShowTopSeparator:(BOOL)showTopSeparator {
 190     if (_showTopSeparator != showTopSeparator) {
 191         _showTopSeparator = showTopSeparator;
 192
 193         if (_showTopSeparator) {
 194             if (!_topLine) {
 195                 CGRect rectZero = CGRectMake(0, 0, 0, 0);
 196                 _topLine = [[UIView alloc] initWithFrame:rectZero];
 197                 _topLine.backgroundColor = [UIColor separatorColor];
 198                 [self.backgroundView addSubview:_topLine];
 199             }
 200             if (!_topLineSelected) {
 201                 CGRect rectZero = CGRectMake(0, 0, 0, 0);
 202                 _topLineSelected = [[UIView alloc] initWithFrame:rectZero];
 203                 _topLineSelected.backgroundColor = [UIColor separatorColor];
 204                 [self.selectedBackgroundView addSubview: _topLineSelected];
 205             }
 206
 207         } else {
 208             if (_topLine) {
 209                 [_topLine removeFromSuperview];
 210                 _topLine = nil;
 211             }
 212             if (_topLineSelected) {
 213                 [_topLineSelected removeFromSuperview];
 214                 _topLineSelected = nil;
 215             }
 216         }
 217     }
 218 }
 219
 220 @end
 221
 222
 223 //
 224 // SWCViewController
 225 //
 226
 227 @interface SWCViewController ()
 228 {
 229     NSMutableArray       *_credentials; // array of NSDictionary
 230     UILabel              *_topLabel;
 231     UILabel              *_middleLabel;
 232     UITableView          *_table;
 233     NSDictionary         *_selectedDict;
 234     NSIndexPath          *_selectedCell;
 235 }
 236
 237 @end
 238
 239 @implementation SWCViewController
 240
 241 - (NSDictionary *)selectedItem
 242 {
 243     return _selectedDict;
 244 }
 245
 246 - (void)setCredentials:(NSArray *)inArray
 247 {
 248     NSMutableArray *credentials = [[NSMutableArray alloc] initWithArray:inArray];
 249     [credentials sortUsingSelector:@selector(compareCredentialDictionaryAscending:)];
 250     _credentials = credentials;
 251     if (_table)
 252         [_table reloadData];
 253 }
 254
 255 - (void)_enableTable
 256 {
 257     [_table setUserInteractionEnabled:YES];
 258 }
 259
 260 - (UITableView *)tableView
 261 {
 262     if (_table == nil) {
 263         _table = [[UITableView alloc] init];
 264         [_table setTranslatesAutoresizingMaskIntoConstraints:NO];
 265         [_table setAutoresizingMask:UIViewAutoresizingNone];
 266         [_table setBackgroundColor:[UIColor systemBackgroundColor]];
 267         [_table setSeparatorStyle:UITableViewCellSeparatorStyleNone];
 268     }
 269     [_table sizeToFit];
 270
 271     return (UITableView *)_table;
 272 }
 273
 274 -(void)loadView
 275 {
 276
 277     UIView* view = [[UIView alloc] init];
 278
 279     UITableView* table = [self tableView];
 280     [table setDelegate: self];
 281     [table setDataSource: self];
 282
 283     [view addSubview: table];
 284
 285     CFErrorRef error = NULL;
 286     audit_token_t auditToken = {};
 287     memset(&auditToken, 0, sizeof(auditToken));
 288     CFArrayRef credentialList = swca_copy_pairs(swca_copy_pairs_request_id, &auditToken, &error);
 289     if (error) {
 290         NSLog(@"Unable to get accounts: %@", [(__bridge NSError*)error localizedDescription]);
 291     }
 292
 293     [self setCredentials:(__bridge NSArray*)credentialList];
 294     if (credentialList) {
 295         CFRelease(credentialList);
 296     }
 297
 298     table.frame = CGRectMake(0.0, 0.0, 300.0, 45.0);
 299     [table layoutIfNeeded]; // so autolayout can do its thing and then we can measure a cell
 300     UITableViewCell* cell = table.visibleCells.firstObject;
 301     CGFloat heightForOneRow = cell ? CGRectGetHeight(cell.frame) : 45.0;
 302
 303     NSDictionary* views = NSDictionaryOfVariableBindings(table);
 304
 305     if ([_credentials count] > 2)
 306     {
 307
 308         CGFloat manyCredentialsHeight = CGFloatMax((heightForOneRow * 2) + 30.0, 120.0);
 309         NSDictionary *metrics = @{@"height":@(manyCredentialsHeight)};
 310         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[table]-|"  options:0 metrics:metrics views:views]];
 311         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[table(height)]-|" options:0 metrics:metrics views:views]];
 312
 313         CGFloat scale = [[UIScreen mainScreen] scale];
 314         table.layer.borderWidth = 1.0 / scale;
 315         table.layer.borderColor = [UIColor opaqueSeparatorColor].CGColor;
 316
 317         [self setPreferredContentSize:CGSizeMake(0, manyCredentialsHeight + 20.0)];
 318
 319     } else if ([_credentials count] == 2) {
 320
 321         NSDictionary *metrics = @{@"height":@(heightForOneRow * 2)};
 322         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[table]|"  options:0 metrics:metrics views:views]];
 323         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[table(height)]-|" options:0 metrics:metrics views:views]];
 324
 325         [self setPreferredContentSize:CGSizeMake(0, heightForOneRow * 2)];
 326         [table setScrollEnabled: NO];
 327
 328     } else {  // [_credentials count] == 1
 329
 330         NSDictionary *metrics = @{@"height":@(heightForOneRow)};
 331         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[table]|"  options:0 metrics:metrics views:views]];
 332         [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[table(height)]|" options:0 metrics:metrics views:views]];
 333
 334         [self setPreferredContentSize:CGSizeMake(0, heightForOneRow)];
 335         [table setScrollEnabled: NO];
 336
 337     }
 338
 339     [self setView:view];
 340 }
 341
 342 -(void)viewWillAppear:(BOOL)animated
 343 {
 344
 345     // Select the first cell by default
 346
 347     NSDictionary *dict = [_credentials objectAtIndex: 0];
 348     _selectedDict = dict;
 349     _selectedCell = [NSIndexPath indexPathForItem:0 inSection: 0];
 350     SWCItemCell *cell = (SWCItemCell *)[_table cellForRowAtIndexPath: _selectedCell];
 351     [cell setTicked: YES];
 352     [cell layoutSubviews];
 353     [_table selectRowAtIndexPath: _selectedCell animated: NO scrollPosition: UITableViewScrollPositionTop];
 354
 355     CFErrorRef error = NULL;
 356     audit_token_t auditToken = {};
 357     memset(&auditToken, 0, sizeof(auditToken));
 358     bool result = swca_set_selection(swca_set_selection_request_id,
 359                                      &auditToken, (__bridge CFDictionaryRef)dict, &error);
 360     if (!result) {
 361         NSLog(@"Unable to select item: %@", [(__bridge NSError*)error localizedDescription]);
 362     }
 363
 364     [super viewWillAppear:animated];
 365 }
 366
 367
 368 //
 369 // UITableView delegate methods
 370 //
 371
 372 - (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section
 373 {
 374     return [_credentials count];
 375 }
 376
 377 - (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
 378 {
 379     NSUInteger row = indexPath.row;
 380
 381     NSDictionary *dict = [_credentials objectAtIndex:row];
 382     _selectedDict = dict;
 383
 384     CFErrorRef error = NULL;
 385     audit_token_t auditToken = {};
 386     memset(&auditToken, 0, sizeof(auditToken));
 387     bool result = swca_set_selection(swca_set_selection_request_id,
 388                                      &auditToken, (__bridge CFDictionaryRef)dict, &error);
 389     if (!result) {
 390         NSLog(@"Unable to select item: %@", [(__bridge NSError*)error localizedDescription]);
 391     }
 392
 393     _selectedCell = indexPath;
 394     SWCItemCell *cell = (SWCItemCell *)[tableView cellForRowAtIndexPath: indexPath];
 395     [cell setTicked: YES];
 396     [cell layoutSubviews];
 397 }
 398
 399 - (void) tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
 400 {
 401     SWCItemCell *cell = (SWCItemCell *)[tableView cellForRowAtIndexPath: indexPath];
 402     [cell setTicked: NO];
 403     [cell layoutSubviews];
 404
 405 }
 406
 407 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 408 {
 409
 410     NSDictionary *dict = [_credentials objectAtIndex:[indexPath row]];
 411     SWCItemCell *cell = [[SWCItemCell alloc] initWithDictionary:dict];
 412
 413     // show separator on top cell if there's only or or two items
 414     if ([_credentials count] <= 2) {
 415         cell.showTopSeparator = YES;
 416     } else {
 417         cell.showSeparator = YES;
 418
 419         if (indexPath.row == 0)
 420         {
 421             cell.showTopSeparator = YES;
 422         }
 423
 424     }
 425
 426     if (_selectedCell == indexPath)
 427     {
 428         [cell setTicked: YES];
 429     } else {
 430         [cell setTicked: NO];
 431     }
 432
 433     return cell;
 434 }
 435
 436
 437 @end