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libreoffice-online/ios/Mobile/AppDelegate.mm
Tor Lillqvist 65b8001d73 Remove more leftover files taking space in the iOS app 
Remove the app's copy of the document after core has saved it and we
have stored the edited version at its real location.

Remove possible leftover tile bitmaps when the app starts.

Signed-off-by: Tor Lillqvist <tml@collabora.com>
Change-Id: Ibc41be38c2cfb689c532640d148116bc06a248ab
2021-08-24 18:02:40 +03:00

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// -*- Mode: objc; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*-
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#import "config.h"
#import <cassert>
#import <cstdlib>
#import <cstring>
#import <LibreOfficeKit/LibreOfficeKit.hxx>
#define LIBO_INTERNAL_ONLY
#include <comphelper/lok.hxx>
#include <i18nlangtag/languagetag.hxx>
#import "ios.h"
#import "AppDelegate.h"
#import "DocumentBrowserViewController.h"
#import "CODocument.h"
#import "DocumentViewController.h"
#import "FakeSocket.hpp"
#import "Kit.hpp"
#import "Log.hpp"
#import "LOOLWSD.hpp"
#import "SetupKitEnvironment.hpp"
#import "Util.hpp"
NSString *app_locale;
static void download(NSURL *source, NSURL *destination) {
[[[NSURLSession sharedSession] downloadTaskWithURL:source
completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]] && [(NSHTTPURLResponse*)response statusCode] == 200) {
NSError *error = nil;
NSURL *resultingItem = nil;
if ([[NSFileManager defaultManager] replaceItemAtURL:destination
withItemAtURL:location
backupItemName:nil
options:NSFileManagerItemReplacementUsingNewMetadataOnly
resultingItemURL:&resultingItem
error:&error]) {
LOG_INF("Downloaded " <<
[[source absoluteString] UTF8String] <<
" as " << [[destination absoluteString] UTF8String]);
} else {
LOG_ERR("Failed to replace " <<
[[destination absoluteString] UTF8String] <<
" with " << [[location absoluteString] UTF8String] <<
": " << [[error description] UTF8String]);
}
} else if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]]) {
LOG_ERR("Failed to download " <<
[[source absoluteString] UTF8String] <<
": response code " << [(NSHTTPURLResponse*)response statusCode]);
} else if (error != nil) {
LOG_ERR("Failed to download " <<
[[source absoluteString] UTF8String] <<
": " << [[error description] UTF8String]);
} else {
LOG_ERR("Failed to download " <<
[[source absoluteString] UTF8String]);
}
}] resume];
}
static void downloadTemplate(NSURL *source, NSURL *destination) {
download(source, destination);
// Download also a thumbnail
download([NSURL URLWithString:[[source absoluteString] stringByAppendingString:@".png"]],
[NSURL URLWithString:[[destination absoluteString] stringByAppendingString:@".png"]]);
}
static void updateTemplates(NSData *data, NSURLResponse *response)
{
static NSString *downloadedTemplates = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingString:@"/downloadedTemplates/"];
// The data downloaded is a template list file, and should have one URL per line, corresponding
// to a template document. For each URL, we check whether we have the corresponding template
// document, and whether it is the same version (timestamp is older or the same). If not, we
// download the new version. Finally we remove any earlier downloaded templates not mentioned in the list
// file.
NSMutableSet<NSString *> *urlHashes = [NSMutableSet setWithCapacity:10];
const char *p = static_cast<const char*>([data bytes]);
const char *endOfData = p + [data length];
while (p < endOfData) {
const char *endOfLine = static_cast<const char*>(std::memchr(p, '\n', [data length]));
if (endOfLine == NULL)
endOfLine = endOfData;
// Allow comment lines staring with a hash sign.
if (*p != '#') {
const int length = endOfLine - p;
// Allow empty lines
if (length > 0) {
std::vector<char> buf(length+1);
std::memcpy(buf.data(), p, length);
buf[length] = 0;
NSString *line = [NSString stringWithUTF8String:buf.data()];
NSURL *url = [NSURL URLWithString:line];
if (url == nil)
LOG_ERR("Invalid URL in template file: " << [line UTF8String]);
else {
NSString *baseName = [url lastPathComponent];
NSString *hash = [[NSData dataWithBytes:buf.data() length:length] base64EncodedStringWithOptions:0];
[urlHashes addObject:hash];
NSString *directoryForTemplate = [downloadedTemplates stringByAppendingString:hash];
NSURL *fileForTemplate = [NSURL fileURLWithPath:[directoryForTemplate stringByAppendingString:[@"/" stringByAppendingString:baseName]]];
// If we have that template, check whether it is up-to-date
BOOL isDirectory;
if ([[NSFileManager defaultManager] fileExistsAtPath:directoryForTemplate isDirectory:&isDirectory] &&
isDirectory) {
NSMutableURLRequest *req = [[NSURLRequest requestWithURL:url] mutableCopy];
[req setHTTPMethod:@"HEAD"];
[[[NSURLSession sharedSession] dataTaskWithRequest:req
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]] && [(NSHTTPURLResponse*)response statusCode] == 200) {
NSString *lastModified = [[(NSHTTPURLResponse*)response allHeaderFields] objectForKey:@"Last-Modified"];
NSDateFormatter *df = [[NSDateFormatter alloc] init];
df.dateFormat = @"EEE, dd MMM yyyy HH:mm:ss z";
NSDate *templateDate = [df dateFromString:lastModified];
NSDate *cachedTemplateDate = [[[NSFileManager defaultManager] attributesOfItemAtPath:[fileForTemplate path] error:nil] objectForKey:NSFileModificationDate];
LOG_INF("Template at " << [[url absoluteString] UTF8String] << " timestamp: "
<< [[templateDate descriptionWithLocale:nil] UTF8String] << ", cached template timestamp: "
<< [[cachedTemplateDate descriptionWithLocale:nil] UTF8String]);
if ([templateDate compare:cachedTemplateDate] == NSOrderedDescending) {
downloadTemplate(url, fileForTemplate);
}
} else if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]]) {
LOG_ERR("Failed to get HEAD of " <<
[[url absoluteString] UTF8String] <<
": response code " << [(NSHTTPURLResponse*)response statusCode]);
} else if (error != nil) {
LOG_ERR("Failed to get HEAD of " <<
[[url absoluteString] UTF8String] <<
": " << [[error description] UTF8String]);
} else {
LOG_ERR("Failed to get HEAD of " <<
[[url absoluteString] UTF8String]);
}
}] resume];
} else {
// Else download it.
[[NSFileManager defaultManager] createDirectoryAtPath:directoryForTemplate withIntermediateDirectories:YES attributes:nil error:nil];
downloadTemplate(url, fileForTemplate);
}
}
}
}
if (endOfLine < endOfData)
p = endOfLine + 1;
else
p = endOfData;
}
// Remove templates that are no longer mentioned in the list file.
NSArray<NSString *> *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:downloadedTemplates error:nil];
for (int i = 0; i < [dirContents count]; i++) {
if (![urlHashes containsObject:[dirContents objectAtIndex:i]]) {
[[NSFileManager defaultManager] removeItemAtPath:[downloadedTemplates stringByAppendingString:[@"/" stringByAppendingString:[dirContents objectAtIndex:i]]]
error:nil];
}
}
}
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
auto trace = std::getenv("LOOL_LOGLEVEL");
if (!trace)
trace = strdup("warning");
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad)
setupKitEnvironment("notebookbar");
else
setupKitEnvironment("");
Log::initialize("Mobile", trace, false, false, {});
Util::setThreadName("main");
// Clear the cache directory if it is for another build of the app
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *userDirectory = [paths objectAtIndex:0];
NSString *cacheDirectory = [userDirectory stringByAppendingPathComponent:@"cache"];
NSString *coreVersionHashFile = [cacheDirectory stringByAppendingPathComponent:@"core_version_hash"];
NSString *loolwsdVersionHashFile = [cacheDirectory stringByAppendingPathComponent:@"loolwsd_version_hash"];
NSData *oldCoreVersionHash = [NSData dataWithContentsOfFile:coreVersionHashFile];
NSData *oldLoolwsdVersionHash = [NSData dataWithContentsOfFile:loolwsdVersionHashFile];
NSData *coreVersionHash = [NSData dataWithBytes:CORE_VERSION_HASH length:strlen(CORE_VERSION_HASH)];
NSData *loolwsdVersionHash = [NSData dataWithBytes:LOOLWSD_VERSION_HASH length:strlen(LOOLWSD_VERSION_HASH)];
if (oldCoreVersionHash == nil
|| ![oldCoreVersionHash isEqualToData:coreVersionHash]
|| oldLoolwsdVersionHash == nil
|| ![oldLoolwsdVersionHash isEqualToData:loolwsdVersionHash]) {
[[NSFileManager defaultManager] removeItemAtPath:cacheDirectory error:nil];
if (![[NSFileManager defaultManager] createDirectoryAtPath:cacheDirectory withIntermediateDirectories:NO attributes:nil error:nil])
NSLog(@"Could not create %@", cacheDirectory);
if (![[NSFileManager defaultManager] createFileAtPath:coreVersionHashFile contents:coreVersionHash attributes:nil])
NSLog(@"Could not create %@", coreVersionHashFile);
if (![[NSFileManager defaultManager] createFileAtPath:loolwsdVersionHashFile contents:loolwsdVersionHash attributes:nil])
NSLog(@"Could not create %@", loolwsdVersionHashFile);
}
// Having LANG in the environment is expected to happen only when debugging from Xcode. When
// testing some language one doesn't know it might be risky to simply set one's iPad to that
// language, as it might be hard to find the way to set it back to a known language.
char *lang = std::getenv("LANG");
if (lang != nullptr)
app_locale = [NSString stringWithUTF8String:lang];
else
app_locale = [[NSLocale preferredLanguages] firstObject];
lo_kit = lok_init_2(nullptr, nullptr);
comphelper::LibreOfficeKit::setLanguageTag(LanguageTag(OUString::fromUtf8(OString([app_locale UTF8String])), true));
// This fires off a thread running the LOKit runLoop()
runKitLoopInAThread();
// Look for the setting indicating the URL for a file containing a list of URLs for template
// documents to download. If set, start a task to download it, and then to download the listed
// templates.
NSString *templateListURL = nil;
// First check managed configuration, if present
NSDictionary *managedConfig = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"com.apple.configuration.managed"];
if (managedConfig != nil) {
templateListURL = managedConfig[@"templateListURL"];
if (templateListURL != nil && ![templateListURL isKindOfClass:[NSString class]])
templateListURL = nil;
}
if (templateListURL == nil)
templateListURL = [[NSUserDefaults standardUserDefaults] stringForKey:@"templateListURL"];
if (templateListURL != nil) {
NSURL *url = [NSURL URLWithString:templateListURL];
if (url != nil) {
[[[NSURLSession sharedSession] dataTaskWithURL:url
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]] && [(NSHTTPURLResponse*)response statusCode] == 200)
updateTemplates(data, response);
else if (error == nil && [response isKindOfClass:[NSHTTPURLResponse class]])
LOG_ERR("Failed to download " <<
[[url absoluteString] UTF8String] <<
": response code " << [(NSHTTPURLResponse*)response statusCode]);
else if (error != nil)
LOG_ERR("Failed to download " <<
[[url absoluteString] UTF8String] <<
": " << [[error description] UTF8String]);
else
LOG_ERR("Failed to download " <<
[[url absoluteString] UTF8String]);
}] resume];
}
}
// Also look for managed configuration setting of the user name.
if (managedConfig != nil) {
NSString *userName = managedConfig[@"userName"];
if (userName != nil && [userName isKindOfClass:[NSString class]])
user_name = [userName UTF8String];
}
if (user_name == nullptr)
user_name = [[[NSUserDefaults standardUserDefaults] stringForKey:@"userName"] UTF8String];
// Remove any leftover tile .bmp files by removing the whole folder
NSURL *tileFolderURL = [[[NSFileManager defaultManager] temporaryDirectory] URLByAppendingPathComponent:@"tiles"];
if (![[NSFileManager defaultManager] removeItemAtURL:tileFolderURL error:nil]) {
NSLog(@"Could not remove tile bitmap folder %@", tileFolderURL);
}
if (![[NSFileManager defaultManager] createDirectoryAtURL:tileFolderURL withIntermediateDirectories:YES attributes:nil error:nil]) {
NSLog(@"Could not create tile bitmap folder %@", tileFolderURL);
}
fakeSocketSetLoggingCallback([](const std::string& line)
{
LOG_INF_NOFILE(line);
});
dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
^{
char *argv[2];
argv[0] = strdup([[NSBundle mainBundle].executablePath UTF8String]);
argv[1] = nullptr;
Util::setThreadName("app");
auto loolwsd = new LOOLWSD();
loolwsd->run(1, argv);
// Should never return
assert(false);
NSLog(@"lolwsd->run() unexpectedly returned");
std::abort();
});
return YES;
}
- (UISceneConfiguration *)application:(UIApplication *)application configurationForConnectingSceneSession:(UISceneSession *)connectingSceneSession options:(UISceneConnectionOptions *)options API_AVAILABLE(ios(13.0)) {
return [UISceneConfiguration configurationWithName:@"Default Configuration" sessionRole:connectingSceneSession.role];
}
- (void)applicationWillResignActive:(UIApplication *)application {
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
}
- (void)applicationWillTerminate:(UIApplication *)application {
// tdf#126974 We don't want any global object destructors to be called, the code
// is not prepared for that.
std::_Exit(1);
}
// This method is called when you use the "Share > Open in Collabora Office" functionality in the
// Files app. Possibly also in other use cases.
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)inputURL options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options {
// Ensure the URL is a file URL
if (!inputURL.isFileURL) {
return NO;
}
// Reveal / import the document at the URL
DocumentBrowserViewController *documentBrowserViewController = (DocumentBrowserViewController *)self.window.rootViewController;
[documentBrowserViewController revealDocumentAtURL:inputURL importIfNeeded:YES completion:^(NSURL * _Nullable revealedDocumentURL, NSError * _Nullable error) {
if (error) {
LOG_ERR("Failed to reveal the document at URL " << [[inputURL description] UTF8String] << " with error: " << [[error description] UTF8String]);
return;
}
// Present the Document View Controller for the revealed URL
[documentBrowserViewController presentDocumentAtURL:revealedDocumentURL];
}];
return YES;
}
@end
// vim:set shiftwidth=4 softtabstop=4 expandtab:
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