firebase log level

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.m

@@ -0,0 +1,175 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.h"
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOSlice.h"
+
+#import <CommonCrypto/CommonHMAC.h>
+
+static void FIRCLSSafeHexToString(const uint8_t* value, size_t length, char* outputBuffer);
+static NSString* FIRCLSNSDataToNSString(NSData* data);
+static NSString* FIRCLSHashBytes(const void* bytes, size_t length);
+static NSString* FIRCLSHashNSString(NSString* value);
+
+@interface FIRCLSMachOBinary ()
+
++ (NSString*)hashNSString:(NSString*)value;
+
+@end
+
+@implementation FIRCLSMachOBinary
+
++ (id)MachOBinaryWithPath:(NSString*)path {
+  return [[self alloc] initWithURL:[NSURL fileURLWithPath:path]];
+}
+
+@synthesize slices = _slices;
+
+- (id)initWithURL:(NSURL*)url {
+  self = [super init];
+  if (self) {
+    _url = [url copy];
+
+    if (!FIRCLSMachOFileInitWithPath(&_file, [[_url path] fileSystemRepresentation])) {
+      return nil;
+    }
+
+    _slices = [NSMutableArray new];
+    FIRCLSMachOFileEnumerateSlices(&_file, ^(FIRCLSMachOSliceRef slice) {
+      FIRCLSMachOSlice* sliceObject;
+
+      sliceObject = [[FIRCLSMachOSlice alloc] initWithSlice:slice];
+
+      [self->_slices addObject:sliceObject];
+    });
+  }
+
+  return self;
+}
+
+- (void)dealloc {
+  FIRCLSMachOFileDestroy(&_file);
+}
+
+- (NSURL*)URL {
+  return _url;
+}
+
+- (NSString*)path {
+  return [_url path];
+}
+
+- (NSString*)instanceIdentifier {
+  if (_instanceIdentifier) {
+    return _instanceIdentifier;
+  }
+
+  NSMutableString* prehashedString = [NSMutableString new];
+
+  // sort the slices by architecture
+  NSArray* sortedSlices =
+      [_slices sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
+        return [[obj1 architectureName] compare:[obj2 architectureName]];
+      }];
+
+  // append them all into a big string
+  for (FIRCLSMachOSlice* slice in sortedSlices) {
+    [prehashedString appendString:[slice uuid]];
+  }
+
+  _instanceIdentifier = [FIRCLSHashNSString(prehashedString) copy];
+
+  return _instanceIdentifier;
+}
+
+- (void)enumerateUUIDs:(void (^)(NSString* uuid, NSString* architecture))block {
+  for (FIRCLSMachOSlice* slice in _slices) {
+    block([slice uuid], [slice architectureName]);
+  }
+}
+
+- (FIRCLSMachOSlice*)sliceForArchitecture:(NSString*)architecture {
+  for (FIRCLSMachOSlice* slice in [self slices]) {
+    if ([[slice architectureName] isEqualToString:architecture]) {
+      return slice;
+    }
+  }
+
+  return nil;
+}
+
++ (NSString*)hashNSString:(NSString*)value {
+  return FIRCLSHashNSString(value);
+}
+
+@end
+
+// TODO: Functions copied from the SDK.  We should figure out a way to share this.
+static void FIRCLSSafeHexToString(const uint8_t* value, size_t length, char* outputBuffer) {
+  const char hex[] = "0123456789abcdef";
+
+  if (!value) {
+    outputBuffer[0] = '\0';
+    return;
+  }
+
+  for (size_t i = 0; i < length; ++i) {
+    unsigned char c = value[i];
+    outputBuffer[i * 2] = hex[c >> 4];
+    outputBuffer[i * 2 + 1] = hex[c & 0x0F];
+  }
+
+  outputBuffer[length * 2] = '\0';  // null terminate
+}
+
+static NSString* FIRCLSNSDataToNSString(NSData* data) {
+  NSString* string;
+  char* buffer;
+  size_t size;
+  NSUInteger length;
+
+  // we need 2 hex char for every byte of data, plus one more spot for a
+  // null terminator
+  length = [data length];
+  size = (length * 2) + 1;
+  buffer = malloc(sizeof(char) * size);
+
+  if (!buffer) {
+    return nil;
+  }
+
+  FIRCLSSafeHexToString([data bytes], length, buffer);
+
+  string = [NSString stringWithUTF8String:buffer];
+
+  free(buffer);
+
+  return string;
+}
+
+static NSString* FIRCLSHashBytes(const void* bytes, size_t length) {
+  uint8_t digest[CC_SHA1_DIGEST_LENGTH] = {0};
+  CC_SHA1(bytes, (CC_LONG)length, digest);
+
+  NSData* result = [NSData dataWithBytes:digest length:CC_SHA1_DIGEST_LENGTH];
+
+  return FIRCLSNSDataToNSString(result);
+}
+
+static NSString* FIRCLSHashNSString(NSString* value) {
+  const char* s = [value cStringUsingEncoding:NSUTF8StringEncoding];
+
+  return FIRCLSHashBytes(s, strlen(s));
+}