1 files changed, 267 insertions, 0 deletions
diff --git a/externals/breakpad/src/common/mac/HTTPRequest.m b/externals/breakpad/src/common/mac/HTTPRequest.m
new file mode 100644
index 0000000000..af21874d14
--- /dev/null
+++ b/externals/breakpad/src/common/mac/HTTPRequest.m
@@ -0,0 +1,267 @@
+// Copyright 2020 Google LLC
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google LLC nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#import "HTTPRequest.h"
+
+#include <Availability.h>
+#include <AvailabilityMacros.h>
+
+#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_7_0) && \
+     __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0)
+#import <UIKit/UIKit.h>
+#define HAS_BACKGROUND_TASK_API 1
+#else
+#define HAS_BACKGROUND_TASK_API 0
+#endif
+
+#import "encoding_util.h"
+
+#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_7_0) && \
+     __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0) ||                  \
+    (defined(MAC_OS_X_VERSION_MIN_REQUIRED) &&                             \
+     defined(MAC_OS_X_VERSION_10_11) &&                                    \
+     MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
+#define USE_NSURLSESSION 1
+#else
+#define USE_NSURLSESSION 0
+#endif
+
+// As -[NSURLConnection sendSynchronousRequest:returningResponse:error:] has
+// been deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements
+// it using -[NSURLSession dataTaskWithRequest:completionHandler:] which is
+// available on iOS 7+.
+static NSData* SendSynchronousNSURLRequest(NSURLRequest* req,
+                                           NSURLResponse** outResponse,
+                                           NSError** outError) {
+#if USE_NSURLSESSION
+  __block NSData* result = nil;
+  __block NSError* error = nil;
+  __block NSURLResponse* response = nil;
+  dispatch_semaphore_t waitSemaphone = dispatch_semaphore_create(0);
+
+  NSURLSessionConfiguration* config =
+      [NSURLSessionConfiguration defaultSessionConfiguration];
+  [config setTimeoutIntervalForRequest:240.0];
+  NSURLSession* session = [NSURLSession sessionWithConfiguration:config];
+  NSURLSessionDataTask *task = [session
+      dataTaskWithRequest:req
+        completionHandler:^(NSData* data, NSURLResponse* resp, NSError* err) {
+          if (outError)
+            error = [err retain];
+          if (outResponse)
+            response = [resp retain];
+          if (err == nil)
+            result = [data retain];
+          dispatch_semaphore_signal(waitSemaphone);
+        }];
+  [task resume];
+
+#if HAS_BACKGROUND_TASK_API
+  // Used to guard against ending the background task twice, which UIKit
+  // considers to be an error.
+  __block BOOL isBackgroundTaskActive = YES;
+  __block UIBackgroundTaskIdentifier backgroundTaskIdentifier =
+      UIBackgroundTaskInvalid;
+  backgroundTaskIdentifier = [UIApplication.sharedApplication
+      beginBackgroundTaskWithName:@"Breakpad Upload"
+                expirationHandler:^{
+                  if (!isBackgroundTaskActive) {
+                    return;
+                  }
+                  isBackgroundTaskActive = NO;
+
+                  [task cancel];
+                  [UIApplication.sharedApplication
+                      endBackgroundTask:backgroundTaskIdentifier];
+                }];
+#endif  // HAS_BACKGROUND_TASK_API
+
+  dispatch_semaphore_wait(waitSemaphone, DISPATCH_TIME_FOREVER);
+  dispatch_release(waitSemaphone);
+
+#if HAS_BACKGROUND_TASK_API
+  if (backgroundTaskIdentifier != UIBackgroundTaskInvalid) {
+    // Dispatch to main queue in order to synchronize access to
+    // `isBackgroundTaskActive` with the background task expiration handler,
+    // which is always run on the main thread.
+    dispatch_async(dispatch_get_main_queue(), ^{
+      if (!isBackgroundTaskActive) {
+        return;
+      }
+      isBackgroundTaskActive = NO;
+
+      [UIApplication.sharedApplication
+          endBackgroundTask:backgroundTaskIdentifier];
+    });
+  }
+#endif  // HAS_BACKGROUND_TASK_API
+
+  if (outError)
+    *outError = [error autorelease];
+  if (outResponse)
+    *outResponse = [response autorelease];
+  return [result autorelease];
+#else  // USE_NSURLSESSION
+  return [NSURLConnection sendSynchronousRequest:req
+                               returningResponse:outResponse
+                                           error:outError];
+#endif  // USE_NSURLSESSION
+}
+
+@implementation HTTPRequest
+
+//=============================================================================
+- (id)initWithURL:(NSURL*)URL {
+  if ((self = [super init])) {
+    URL_ = [URL copy];
+  }
+
+  return self;
+}
+
+//=============================================================================
+- (void)dealloc {
+  [URL_ release];
+  [response_ release];
+
+  [super dealloc];
+}
+
+//=============================================================================
+- (NSURL*)URL {
+  return URL_;
+}
+
+//=============================================================================
+- (NSHTTPURLResponse*)response {
+  return response_;
+}
+
+//=============================================================================
+- (NSString*)HTTPMethod {
+  @throw [NSException
+      exceptionWithName:NSInternalInconsistencyException
+                 reason:[NSString stringWithFormat:@"You must"
+                                                    "override %@ in a subclass",
+                                                   NSStringFromSelector(_cmd)]
+               userInfo:nil];
+}
+
+//=============================================================================
+- (NSString*)contentType {
+  return nil;
+}
+
+//=============================================================================
+- (NSData*)bodyData {
+  return nil;
+}
+
+//=============================================================================
+- (NSData*)send:(NSError**)withError {
+  NSMutableURLRequest* req = [[NSMutableURLRequest alloc]
+          initWithURL:URL_
+          cachePolicy:NSURLRequestUseProtocolCachePolicy
+      timeoutInterval:60.0];
+
+  NSString* contentType = [self contentType];
+  if ([contentType length] > 0) {
+    [req setValue:contentType forHTTPHeaderField:@"Content-type"];
+  }
+
+  NSData* bodyData = [self bodyData];
+  if ([bodyData length] > 0) {
+    [req setHTTPBody:bodyData];
+  }
+
+  [req setHTTPMethod:[self HTTPMethod]];
+
+  [response_ release];
+  response_ = nil;
+
+  NSData* data = nil;
+  if ([[req URL] isFileURL]) {
+    [[req HTTPBody] writeToURL:[req URL] options:0 error:withError];
+  } else {
+    NSURLResponse* response = nil;
+    data = SendSynchronousNSURLRequest(req, &response, withError);
+    response_ = (NSHTTPURLResponse*)[response retain];
+  }
+  [req release];
+
+  return data;
+}
+
+//=============================================================================
++ (NSData*)formDataForFileContents:(NSData*)contents withName:(NSString*)name {
+  NSMutableData* data = [NSMutableData data];
+  NSString* escaped = PercentEncodeNSString(name);
+  NSString* fmt = @"Content-Disposition: form-data; name=\"%@\"; "
+                   "filename=\"minidump.dmp\"\r\nContent-Type: "
+                   "application/octet-stream\r\n\r\n";
+  NSString* pre = [NSString stringWithFormat:fmt, escaped];
+
+  [data appendData:[pre dataUsingEncoding:NSUTF8StringEncoding]];
+  [data appendData:contents];
+
+  return data;
+}
+
+//=============================================================================
++ (NSData*)formDataForFile:(NSString*)file withName:(NSString*)name {
+  NSData* contents = [NSData dataWithContentsOfFile:file];
+
+  return [HTTPRequest formDataForFileContents:contents withName:name];
+}
+
+//=============================================================================
++ (NSData*)formDataForKey:(NSString*)key value:(NSString*)value {
+  NSString* escaped = PercentEncodeNSString(key);
+  NSString* fmt = @"Content-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n";
+  NSString* form = [NSString stringWithFormat:fmt, escaped, value];
+
+  return [form dataUsingEncoding:NSUTF8StringEncoding];
+}
+
+//=============================================================================
++ (void)appendFileToBodyData:(NSMutableData*)data
+                    withName:(NSString*)name
+              withFileOrData:(id)fileOrData {
+  NSData* fileData;
+
+  // The object can be either the path to a file (NSString) or the contents
+  // of the file (NSData).
+  if ([fileOrData isKindOfClass:[NSData class]])
+    fileData = [self formDataForFileContents:fileOrData withName:name];
+  else
+    fileData = [HTTPRequest formDataForFile:fileOrData withName:name];
+
+  [data appendData:fileData];
+}
+
+@end