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//
// ASIAuthenticationDialog.m
// Part of ASIHTTPRequest -> http://allseeing-i.com/ASIHTTPRequest
//
// Created by Ben Copsey on 21/08/2009.
// Copyright 2009 All-Seeing Interactive. All rights reserved.
//
#import "ASIAuthenticationDialog.h"
#import "ASIHTTPRequest.h"
#import <QuartzCore/QuartzCore.h>
static ASIAuthenticationDialog *sharedDialog = nil;
BOOL isDismissing = NO;
static NSMutableArray *requestsNeedingAuthentication = nil;
static const NSUInteger kUsernameRow = 0;
static const NSUInteger kUsernameSection = 0;
static const NSUInteger kPasswordRow = 1;
static const NSUInteger kPasswordSection = 0;
static const NSUInteger kDomainRow = 0;
static const NSUInteger kDomainSection = 1;
@implementation ASIAutorotatingViewController
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
return YES;
}
@end
@interface ASIAuthenticationDialog ()
- (void)showTitle;
- (void)show;
- (NSArray *)requestsRequiringTheseCredentials;
- (void)presentNextDialog;
- (void)keyboardWillShow:(NSNotification *)notification;
- (void)orientationChanged:(NSNotification *)notification;
- (void)cancelAuthenticationFromDialog:(id)sender;
- (void)loginWithCredentialsFromDialog:(id)sender;
@property (retain) UITableView *tableView;
@end
@implementation ASIAuthenticationDialog
#pragma mark init / dealloc
+ (void)initialize
{
if (self == [ASIAuthenticationDialog class]) {
requestsNeedingAuthentication = [[NSMutableArray array] retain];
}
}
+ (void)presentAuthenticationDialogForRequest:(ASIHTTPRequest *)theRequest
{
// No need for a lock here, this will always be called on the main thread
if (!sharedDialog) {
sharedDialog = [[self alloc] init];
[sharedDialog setRequest:theRequest];
if ([theRequest authenticationNeeded] == ASIProxyAuthenticationNeeded) {
[sharedDialog setType:ASIProxyAuthenticationType];
} else {
[sharedDialog setType:ASIStandardAuthenticationType];
}
[sharedDialog show];
} else {
[requestsNeedingAuthentication addObject:theRequest];
}
}
- (id)init
{
if ((self = [self initWithNibName:nil bundle:nil])) {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
#endif
if (![UIDevice currentDevice].generatesDeviceOrientationNotifications) {
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[self setDidEnableRotationNotifications:YES];
}
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:nil];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
}
#endif
}
return self;
}
- (void)dealloc
{
if ([self didEnableRotationNotifications]) {
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIDeviceOrientationDidChangeNotification object:nil];
}
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
[request release];
[tableView release];
[presentingController.view removeFromSuperview];
[presentingController release];
[super dealloc];
}
#pragma mark keyboard notifications
- (void)keyboardWillShow:(NSNotification *)notification
{
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
#endif
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_3_2
NSValue *keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey];
#else
NSValue *keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardBoundsUserInfoKey];
#endif
CGRect keyboardBounds;
[keyboardBoundsValue getValue:&keyboardBounds];
UIEdgeInsets e = UIEdgeInsetsMake(0, 0, keyboardBounds.size.height, 0);
[[self tableView] setScrollIndicatorInsets:e];
[[self tableView] setContentInset:e];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
}
#endif
}
// Manually handles orientation changes on iPhone
- (void)orientationChanged:(NSNotification *)notification
{
[self showTitle];
UIInterfaceOrientation o = (UIInterfaceOrientation)[[UIApplication sharedApplication] statusBarOrientation];
CGFloat angle = 0;
switch (o) {
case UIDeviceOrientationLandscapeLeft: angle = 90; break;
case UIDeviceOrientationLandscapeRight: angle = -90; break;
case UIDeviceOrientationPortraitUpsideDown: angle = 180; break;
default: break;
}
CGRect f = [[UIScreen mainScreen] applicationFrame];
// Swap the frame height and width if necessary
if (UIDeviceOrientationIsLandscape(o)) {
CGFloat t;
t = f.size.width;
f.size.width = f.size.height;
f.size.height = t;
}
CGAffineTransform previousTransform = self.view.layer.affineTransform;
CGAffineTransform newTransform = CGAffineTransformMakeRotation((CGFloat)(angle * M_PI / 180.0));
// Reset the transform so we can set the size
self.view.layer.affineTransform = CGAffineTransformIdentity;
self.view.frame = (CGRect){ { 0, 0 }, f.size};
// Revert to the previous transform for correct animation
self.view.layer.affineTransform = previousTransform;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
// Set the new transform
self.view.layer.affineTransform = newTransform;
// Fix the view origin
self.view.frame = (CGRect){ { f.origin.x, f.origin.y },self.view.frame.size};
[UIView commitAnimations];
}
#pragma mark utilities
- (UIViewController *)presentingController
{
if (!presentingController) {
presentingController = [[ASIAutorotatingViewController alloc] initWithNibName:nil bundle:nil];
// Attach to the window, but don't interfere.
UIWindow *window = [[[UIApplication sharedApplication] windows] objectAtIndex:0];
[window addSubview:[presentingController view]];
[[presentingController view] setFrame:CGRectZero];
[[presentingController view] setUserInteractionEnabled:NO];
}
return presentingController;
}
- (UITextField *)textFieldInRow:(NSUInteger)row section:(NSUInteger)section
{
return [[[[[self tableView] cellForRowAtIndexPath:
[NSIndexPath indexPathForRow:row inSection:section]]
contentView] subviews] objectAtIndex:0];
}
- (UITextField *)usernameField
{
return [self textFieldInRow:kUsernameRow section:kUsernameSection];
}
- (UITextField *)passwordField
{
return [self textFieldInRow:kPasswordRow section:kPasswordSection];
}
- (UITextField *)domainField
{
return [self textFieldInRow:kDomainRow section:kDomainSection];
}
#pragma mark show / dismiss
+ (void)dismiss
{
[[sharedDialog parentViewController] dismissModalViewControllerAnimated:YES];
}
- (void)viewDidDisappear:(BOOL)animated
{
[self retain];
[sharedDialog release];
sharedDialog = nil;
[self performSelector:@selector(presentNextDialog) withObject:nil afterDelay:0];
[self release];
}
- (void)dismiss
{
if (self == sharedDialog) {
[[self class] dismiss];
} else {
[[self parentViewController] dismissModalViewControllerAnimated:YES];
}
}
- (void)showTitle
{
UINavigationBar *navigationBar = [[[self view] subviews] objectAtIndex:0];
UINavigationItem *navItem = [[navigationBar items] objectAtIndex:0];
if (UIInterfaceOrientationIsPortrait([[UIDevice currentDevice] orientation])) {
// Setup the title
if ([self type] == ASIProxyAuthenticationType) {
[navItem setPrompt:@"Login to this secure proxy server."];
} else {
[navItem setPrompt:@"Login to this secure server."];
}
} else {
[navItem setPrompt:nil];
}
[navigationBar sizeToFit];
CGRect f = [[self view] bounds];
f.origin.y = [navigationBar frame].size.height;
f.size.height -= f.origin.y;
[[self tableView] setFrame:f];
}
- (void)show
{
// Remove all subviews
UIView *v;
while ((v = [[[self view] subviews] lastObject])) {
[v removeFromSuperview];
}
// Setup toolbar
UINavigationBar *bar = [[[UINavigationBar alloc] init] autorelease];
[bar setAutoresizingMask:UIViewAutoresizingFlexibleWidth];
UINavigationItem *navItem = [[[UINavigationItem alloc] init] autorelease];
bar.items = [NSArray arrayWithObject:navItem];
[[self view] addSubview:bar];
[self showTitle];
// Setup toolbar buttons
if ([self type] == ASIProxyAuthenticationType) {
[navItem setTitle:[[self request] proxyHost]];
} else {
[navItem setTitle:[[[self request] url] host]];
}
[navItem setLeftBarButtonItem:[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelAuthenticationFromDialog:)] autorelease]];
[navItem setRightBarButtonItem:[[[UIBarButtonItem alloc] initWithTitle:@"Login" style:UIBarButtonItemStyleDone target:self action:@selector(loginWithCredentialsFromDialog:)] autorelease]];
// We show the login form in a table view, similar to Safari's authentication dialog
[bar sizeToFit];
CGRect f = [[self view] bounds];
f.origin.y = [bar frame].size.height;
f.size.height -= f.origin.y;
[self setTableView:[[[UITableView alloc] initWithFrame:f style:UITableViewStyleGrouped] autorelease]];
[[self tableView] setDelegate:self];
[[self tableView] setDataSource:self];
[[self tableView] setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight];
[[self view] addSubview:[self tableView]];
// Force reload the table content, and focus the first field to show the keyboard
[[self tableView] reloadData];
[[[[[self tableView] cellForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]].contentView subviews] objectAtIndex:0] becomeFirstResponder];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
[self setModalPresentationStyle:UIModalPresentationFormSheet];
}
#endif
[[self presentingController] presentModalViewController:self animated:YES];
}
#pragma mark button callbacks
- (void)cancelAuthenticationFromDialog:(id)sender
{
for (ASIHTTPRequest *theRequest in [self requestsRequiringTheseCredentials]) {
[theRequest cancelAuthentication];
[requestsNeedingAuthentication removeObject:theRequest];
}
[self dismiss];
}
- (NSArray *)requestsRequiringTheseCredentials
{
NSMutableArray *requestsRequiringTheseCredentials = [NSMutableArray array];
NSURL *requestURL = [[self request] url];
for (ASIHTTPRequest *otherRequest in requestsNeedingAuthentication) {
NSURL *theURL = [otherRequest url];
if (([otherRequest authenticationNeeded] == [[self request] authenticationNeeded]) && [[theURL host] isEqualToString:[requestURL host]] && ([theURL port] == [requestURL port] || ([requestURL port] && [[theURL port] isEqualToNumber:[requestURL port]])) && [[theURL scheme] isEqualToString:[requestURL scheme]] && ((![otherRequest authenticationRealm] && ![[self request] authenticationRealm]) || ([otherRequest authenticationRealm] && [[self request] authenticationRealm] && [[[self request] authenticationRealm] isEqualToString:[otherRequest authenticationRealm]]))) {
[requestsRequiringTheseCredentials addObject:otherRequest];
}
}
[requestsRequiringTheseCredentials addObject:[self request]];
return requestsRequiringTheseCredentials;
}
- (void)presentNextDialog
{
if ([requestsNeedingAuthentication count]) {
ASIHTTPRequest *nextRequest = [requestsNeedingAuthentication objectAtIndex:0];
[requestsNeedingAuthentication removeObjectAtIndex:0];
[[self class] presentAuthenticationDialogForRequest:nextRequest];
}
}
- (void)loginWithCredentialsFromDialog:(id)sender
{
for (ASIHTTPRequest *theRequest in [self requestsRequiringTheseCredentials]) {
NSString *username = [[self usernameField] text];
NSString *password = [[self passwordField] text];
if (username == nil) { username = @""; }
if (password == nil) { password = @""; }
if ([self type] == ASIProxyAuthenticationType) {
[theRequest setProxyUsername:username];
[theRequest setProxyPassword:password];
} else {
[theRequest setUsername:username];
[theRequest setPassword:password];
}
// Handle NTLM domains
NSString *scheme = ([self type] == ASIStandardAuthenticationType) ? [[self request] authenticationScheme] : [[self request] proxyAuthenticationScheme];
if ([scheme isEqualToString:(NSString *)kCFHTTPAuthenticationSchemeNTLM]) {
NSString *domain = [[self domainField] text];
if ([self type] == ASIProxyAuthenticationType) {
[theRequest setProxyDomain:domain];
} else {
[theRequest setDomain:domain];
}
}
[theRequest retryUsingSuppliedCredentials];
[requestsNeedingAuthentication removeObject:theRequest];
}
[self dismiss];
}
#pragma mark table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView
{
NSString *scheme = ([self type] == ASIStandardAuthenticationType) ? [[self request] authenticationScheme] : [[self request] proxyAuthenticationScheme];
if ([scheme isEqualToString:(NSString *)kCFHTTPAuthenticationSchemeNTLM]) {
return 2;
}
return 1;
}
- (CGFloat)tableView:(UITableView *)aTableView heightForFooterInSection:(NSInteger)section
{
if (section == [self numberOfSectionsInTableView:aTableView]-1) {
return 30;
}
return 0;
}
- (CGFloat)tableView:(UITableView *)aTableView heightForHeaderInSection:(NSInteger)section
{
if (section == 0) {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
return 54;
}
#endif
return 30;
}
return 0;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
if (section == 0) {
return [[self request] authenticationRealm];
}
return nil;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_3_0
UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease];
#else
UITableViewCell *cell = [[[UITableViewCell alloc] initWithFrame:CGRectMake(0,0,0,0) reuseIdentifier:nil] autorelease];
#endif
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
CGRect f = CGRectInset([cell bounds], 10, 10);
UITextField *textField = [[[UITextField alloc] initWithFrame:f] autorelease];
[textField setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight];
[textField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[textField setAutocorrectionType:UITextAutocorrectionTypeNo];
NSUInteger s = [indexPath section];
NSUInteger r = [indexPath row];
if (s == kUsernameSection && r == kUsernameRow) {
[textField setPlaceholder:@"User"];
} else if (s == kPasswordSection && r == kPasswordRow) {
[textField setPlaceholder:@"Password"];
[textField setSecureTextEntry:YES];
} else if (s == kDomainSection && r == kDomainRow) {
[textField setPlaceholder:@"Domain"];
}
[cell.contentView addSubview:textField];
return cell;
}
- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section
{
if (section == 0) {
return 2;
} else {
return 1;
}
}
- (NSString *)tableView:(UITableView *)aTableView titleForFooterInSection:(NSInteger)section
{
if (section == [self numberOfSectionsInTableView:aTableView]-1) {
// If we're using Basic authentication and the connection is not using SSL, we'll show the plain text message
if ([[[self request] authenticationScheme] isEqualToString:(NSString *)kCFHTTPAuthenticationSchemeBasic] && ![[[[self request] url] scheme] isEqualToString:@"https"]) {
return @"Password will be sent in the clear.";
// We are using Digest, NTLM, or any scheme over SSL
} else {
return @"Password will be sent securely.";
}
}
return nil;
}
#pragma mark -
@synthesize request;
@synthesize type;
@synthesize tableView;
@synthesize didEnableRotationNotifications;
@synthesize presentingController;
@end
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