--- /dev/null
+/*
+ * Copyright (c) 2018 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#import <os/transaction_private.h>
+#import <Foundation/Foundation.h>
+#import <CFNetwork/CFURLConnection.h>
+#import <Accounts/Accounts.h>
+#import <Accounts/Accounts_Private.h>
+#import <AppleAccount/ACAccount+AppleAccount.h>
+#import <AppleAccount/ACAccountStore+AppleAccount.h>
+#import <zlib.h>
+
+#import "keychain/analytics/SecMetrics.h"
+#import "keychain/analytics/SecEventMetric.h"
+#import "keychain/analytics/SecEventMetric_private.h"
+#import "keychain/analytics/SecC2DeviceInfo.h"
+
+#import "keychain/analytics/C2Metric/SECC2MPMetric.h"
+#import "keychain/analytics/C2Metric/SECC2MPGenericEvent.h"
+#import "keychain/analytics/C2Metric/SECC2MPGenericEventMetric.h"
+#import "keychain/analytics/C2Metric/SECC2MPGenericEventMetricValue.h"
+#import "keychain/analytics/C2Metric/SECC2MPDeviceInfo.h"
+#import <utilities/SecCoreAnalytics.h>
+
+
+
+@interface SecMetrics () <NSURLSessionDelegate>
+@property (strong) NSMutableDictionary<NSNumber *, SecEventMetric *> *taskMap;
+@property (strong) NSURLSession *URLSession;
+@property (strong) os_transaction_t transaction;
+@property (assign) long lostEvents;
+@end
+
+
+static NSString *securtitydPushTopic = @"com.apple.private.alloy.keychain.metrics";
+
+@implementation SecMetrics
+
++ (NSURL *)c2MetricsEndpoint {
+ ACAccountStore *store = [[ACAccountStore alloc] init];
+ ACAccount* primaryAccount = [store aa_primaryAppleAccount];
+ if(!primaryAccount) {
+ return nil;
+ }
+ NSString *urlString = [primaryAccount propertiesForDataclass:ACAccountDataclassCKMetricsService][@"url"];
+ if (urlString == NULL) {
+ return nil;
+ }
+
+ NSURL *url = [[[NSURL alloc] initWithString:urlString] URLByAppendingPathComponent:@"c2"];
+
+ if (url) {
+ static dispatch_once_t onceToken;
+ dispatch_once(&onceToken, ^{
+ os_log(OS_LOG_DEFAULT, "metrics URL is: %@", url);
+ });
+ }
+
+ return url;
+}
+
++ (SecMetrics *)managerObject {
+ static SecMetrics *manager;
+ static dispatch_once_t onceToken;
+ dispatch_once(&onceToken, ^{
+ manager = [[SecMetrics alloc] init];
+ });
+ return manager;
+}
+
+- (instancetype)init
+{
+ if ((self = [super init]) == NULL) {
+ return self;
+ }
+
+ NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration ephemeralSessionConfiguration];
+
+ self.URLSession = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:NULL];
+ self.taskMap = [NSMutableDictionary dictionary];
+ return self;
+}
+
+- (void)submitEvent:(SecEventMetric *)metric
+{
+ [self sendEvent:metric pushTopic:securtitydPushTopic];
+}
+
+
+- (void)sendEvent:(SecEventMetric *)event pushTopic:(NSString *)pushTopic
+{
+ bool tooMany = false;
+
+ @synchronized(self) {
+ if ([self.taskMap count] > 5) {
+ self.lostEvents++;
+ tooMany = true;
+ }
+ }
+ if (tooMany) {
+ os_log(OS_LOG_DEFAULT, "metrics %@ dropped on floor since too many are pending", event.eventName);
+ return;
+ }
+
+ SECC2MPGenericEvent *genericEvent = [event genericEvent];
+ if (genericEvent == NULL) {
+ return;
+ }
+
+ NSMutableURLRequest *request = [self requestForGenericEvent:genericEvent];
+ if (request == NULL) {
+ return;
+ }
+
+ NSURLSessionDataTask *task = [self.URLSession dataTaskWithRequest:request];
+ if (pushTopic) {
+#if !TARGET_OS_BRIDGE
+ task._APSRelayTopic = pushTopic;
+#endif
+ }
+
+ @synchronized(self) {
+ if ([self.taskMap count] == 0) {
+ self.transaction = os_transaction_create("com.apple.security.c2metric.upload");
+ }
+ self.taskMap[@(task.taskIdentifier)] = event;
+ }
+
+ [task resume];
+}
+
+- (SecEventMetric *)getEvent:(NSURLSessionTask *)task
+{
+ @synchronized(self) {
+ return self.taskMap[@(task.taskIdentifier)];
+ }
+}
+
+//MARK: - URLSession Callbacks
+
+- (void) URLSession:(NSURLSession *)session
+ task:(NSURLSessionTask *)task
+ didCompleteWithError:(nullable NSError *)error
+{
+ SecEventMetric *event = [self getEvent:task];
+
+ os_log(OS_LOG_DEFAULT, "metrics %@ transfer %@ completed with: %@",
+ event.eventName, task.originalRequest.URL, error ? [error description] : @"success");
+
+ @synchronized(self) {
+ [self.taskMap removeObjectForKey:@(task.taskIdentifier)];
+ if (self.lostEvents || error) {
+ NSMutableDictionary *event = [NSMutableDictionary dictionary];
+
+ if (self.lostEvents) {
+ event[@"counter"] = @(self.lostEvents);
+ }
+ if (error) {
+ event[@"error_code"] = @(error.code);
+ event[@"error_domain"] = error.domain;
+ }
+ [SecCoreAnalytics sendEvent:@"com.apple.security.push.channel.dropped" event:event];
+ self.lostEvents = 0;
+ }
+
+ if (self.taskMap.count == 0) {
+ self.transaction = NULL;
+ }
+ }
+}
+
+//MARK: - FOO
+
+
+- (NSMutableURLRequest*)requestForGenericEvent:(SECC2MPGenericEvent*)genericEvent
+{
+ NSURL* metricURL = [[self class] c2MetricsEndpoint];
+ if (!metricURL) {
+ return nil;
+ }
+
+ NSMutableURLRequest* request = [[NSMutableURLRequest alloc] initWithURL:metricURL];
+ if (!request) {
+ return nil;
+ }
+
+ SECC2MPMetric* metrics = [[SECC2MPMetric alloc] init];
+ if (!metrics) {
+ return nil;
+ }
+ metrics.deviceInfo = [self generateDeviceInfo];
+ metrics.reportFrequency = 0;
+ metrics.reportFrequencyBase = 0;
+
+ metrics.metricType = SECC2MPMetric_Type_generic_event_type;
+ metrics.genericEvent = genericEvent;
+
+ PBDataWriter* protobufWriter = [[PBDataWriter alloc] init];
+ if (!protobufWriter) {
+ return nil;
+ }
+ [metrics writeTo:protobufWriter];
+ NSData* metricData = [protobufWriter immutableData];
+ if (!metricData) {
+ return nil;
+ }
+ NSData* compressedData = [self gzipEncode:metricData];
+ if (!compressedData) {
+ return nil;
+ }
+ [request setHTTPMethod:@"POST"];
+ [request setHTTPBody:compressedData];
+ [request setValue:@"application/protobuf" forHTTPHeaderField:@"Content-Type"];
+ [request setValue:@"gzip" forHTTPHeaderField:@"Content-Encoding"];
+
+ return request;
+}
+
+#define CHUNK 1024
+
+- (NSData*) gzipEncode:(NSData*)bodyData {
+ unsigned have;
+ unsigned char outBytes[CHUNK] = {0};
+ NSMutableData *compressedData = [NSMutableData data];
+
+ /* allocate deflate state */
+ z_stream _zlibStream;
+ _zlibStream.zalloc = Z_NULL;
+ _zlibStream.zfree = Z_NULL;
+ _zlibStream.opaque = Z_NULL;
+
+ // generate gzip header/trailer, use defaults for all other values
+ int ret = deflateInit2(&_zlibStream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 15 + 16, 8, Z_DEFAULT_STRATEGY);
+ if (ret != Z_OK) {
+ return NULL;
+ }
+
+ NS_VALID_UNTIL_END_OF_SCOPE NSData *arcSafeBodyData = bodyData;
+ _zlibStream.next_in = (Bytef *)[arcSafeBodyData bytes];
+ _zlibStream.avail_in = (unsigned int)[arcSafeBodyData length];
+ do {
+ _zlibStream.avail_out = CHUNK;
+ _zlibStream.next_out = outBytes;
+ ret = deflate(&_zlibStream, Z_FINISH);
+ assert(ret != Z_STREAM_ERROR);
+ have = CHUNK - _zlibStream.avail_out;
+ [compressedData appendBytes:outBytes length:have];
+ } while (_zlibStream.avail_out == 0);
+ assert(_zlibStream.avail_in == 0);
+ deflateEnd(&_zlibStream);
+
+ return compressedData;
+}
+
+
+- (SECC2MPDeviceInfo*) generateDeviceInfo {
+ SECC2MPDeviceInfo* deviceInfo = [[SECC2MPDeviceInfo alloc] init];
+ deviceInfo.productName = [SecC2DeviceInfo productName];
+ deviceInfo.productType = [SecC2DeviceInfo productType];
+ deviceInfo.productVersion = [SecC2DeviceInfo productVersion];
+ deviceInfo.productBuild = [SecC2DeviceInfo buildVersion];
+ deviceInfo.processName = [SecC2DeviceInfo processName];
+ deviceInfo.processVersion = [SecC2DeviceInfo processVersion];
+ deviceInfo.processUuid = [SecC2DeviceInfo processUUID];
+ return deviceInfo;
+}
+
+@end
projects / apple / security.git / blobdiff