Revert format changes in related files

pull/8561/head
Muxi Yan 8 years ago
parent 2c88b4616a
commit 61274cac90
  1. 139
      src/objective-c/GRPCClient/GRPCCall.m
  2. 13
      src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.h
  3. 42
      src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m
  4. 65
      src/objective-c/GRPCClient/private/GRPCHost.m
  5. 368
      src/objective-c/tests/Tests.xcodeproj/project.pbxproj

@ -33,9 +33,9 @@
#import "GRPCCall.h" #import "GRPCCall.h"
#import <RxLibrary/GRXConcurrentWriteable.h>
#include <grpc/grpc.h> #include <grpc/grpc.h>
#include <grpc/support/time.h> #include <grpc/support/time.h>
#import <RxLibrary/GRXConcurrentWriteable.h>
#import "private/GRPCConnectivityMonitor.h" #import "private/GRPCConnectivityMonitor.h"
#import "private/GRPCHost.h" #import "private/GRPCHost.h"
@ -85,21 +85,17 @@ static NSMutableDictionary *callFlags;
// correct ordering. // correct ordering.
GRXConcurrentWriteable *_responseWriteable; GRXConcurrentWriteable *_responseWriteable;
// The network thread wants the requestWriter to resume (when the server is // The network thread wants the requestWriter to resume (when the server is ready for more input),
// ready for more input), or to stop (on errors), concurrently with user // or to stop (on errors), concurrently with user threads that want to start it, pause it or stop
// threads that want to start it, pause it or stop it. Because a writer isn't // it. Because a writer isn't thread-safe, we'll synchronize those operations on it.
// thread-safe, we'll synchronize those operations on it. // We don't use a dispatch queue for that purpose, because the writer can call writeValue: or
// We don't use a dispatch queue for that purpose, because the writer can call // writesFinishedWithError: on this GRPCCall as part of those operations. We want to be able to
// writeValue: or writesFinishedWithError: on this GRPCCall as part of those // pause the writer immediately on writeValue:, so we need our locking to be recursive.
// operations. We want to be able to pause the writer immediately on
// writeValue:, so we need our locking to be recursive.
GRXWriter *_requestWriter; GRXWriter *_requestWriter;
// To create a retain cycle when a call is started, up until it finishes. See // To create a retain cycle when a call is started, up until it finishes. See
// |startWithWriteable:| and |finishWithError:|. This saves users from having // |startWithWriteable:| and |finishWithError:|. This saves users from having to retain a
// to retain a // reference to the call object if all they're interested in is the handler being executed when
// reference to the call object if all they're interested in is the handler
// being executed when
// the response arrives. // the response arrives.
GRPCCall *_retainSelf; GRPCCall *_retainSelf;
@ -108,16 +104,13 @@ static NSMutableDictionary *callFlags;
@synthesize state = _state; @synthesize state = _state;
// TODO(jcanizales): If grpc_init is idempotent, this should be changed from // TODO(jcanizales): If grpc_init is idempotent, this should be changed from load to initialize.
// load to initialize.
+ (void)load { + (void)load {
grpc_init(); grpc_init();
callFlags = [NSMutableDictionary dictionary]; callFlags = [NSMutableDictionary dictionary];
} }
+ (void)setCallSafety:(GRPCCallSafety)callSafety + (void)setCallSafety:(GRPCCallSafety)callSafety host:(NSString *)host path:(NSString *)path {
host:(NSString *)host
path:(NSString *)path {
NSString *hostAndPath = [NSString stringWithFormat:@"%@/%@", host, path]; NSString *hostAndPath = [NSString stringWithFormat:@"%@/%@", host, path];
switch (callSafety) { switch (callSafety) {
case GRPCCallSafetyDefault: case GRPCCallSafetyDefault:
@ -148,8 +141,7 @@ static NSMutableDictionary *callFlags;
path:(NSString *)path path:(NSString *)path
requestsWriter:(GRXWriter *)requestWriter { requestsWriter:(GRXWriter *)requestWriter {
if (!host || !path) { if (!host || !path) {
[NSException raise:NSInvalidArgumentException [NSException raise:NSInvalidArgumentException format:@"Neither host nor path can be nil."];
format:@"Neither host nor path can be nil."];
} }
if (requestWriter.state != GRXWriterStateNotStarted) { if (requestWriter.state != GRXWriterStateNotStarted) {
[NSException raise:NSInvalidArgumentException [NSException raise:NSInvalidArgumentException
@ -199,10 +191,7 @@ static NSMutableDictionary *callFlags;
- (void)cancel { - (void)cancel {
[self finishWithError:[NSError errorWithDomain:kGRPCErrorDomain [self finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
code:GRPCErrorCodeCancelled code:GRPCErrorCodeCancelled
userInfo:@{ userInfo:@{NSLocalizedDescriptionKey: @"Canceled by app"}]];
NSLocalizedDescriptionKey :
@"Canceled by app"
}]];
[self cancelCall]; [self cancelCall];
} }
@ -219,16 +208,13 @@ static NSMutableDictionary *callFlags;
// The handler will be called from the network queue. // The handler will be called from the network queue.
- (void)startReadWithHandler:(void(^)(grpc_byte_buffer *))handler { - (void)startReadWithHandler:(void(^)(grpc_byte_buffer *))handler {
// TODO(jcanizales): Add error handlers for async failures // TODO(jcanizales): Add error handlers for async failures
[_wrappedCall startBatchWithOperations:@[ [[GRPCOpRecvMessage alloc] [_wrappedCall startBatchWithOperations:@[[[GRPCOpRecvMessage alloc] initWithHandler:handler]]];
initWithHandler:handler] ]];
} }
// Called initially from the network queue once response headers are received, // Called initially from the network queue once response headers are received,
// then "recursively" from the responseWriteable queue after each response from // then "recursively" from the responseWriteable queue after each response from the
// the
// server has been written. // server has been written.
// If the call is currently paused, this is a noop. Restarting the call will // If the call is currently paused, this is a noop. Restarting the call will invoke this
// invoke this
// method. // method.
// TODO(jcanizales): Rename to readResponseIfNotPaused. // TODO(jcanizales): Rename to readResponseIfNotPaused.
- (void)startNextRead { - (void)startNextRead {
@ -251,21 +237,13 @@ static NSMutableDictionary *callFlags;
// don't want to throw, because the app shouldn't crash for a behavior // don't want to throw, because the app shouldn't crash for a behavior
// that's on the hands of any server to have. Instead we finish and ask // that's on the hands of any server to have. Instead we finish and ask
// the server to cancel. // the server to cancel.
[weakSelf [weakSelf finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
finishWithError:[NSError
errorWithDomain:kGRPCErrorDomain
code:GRPCErrorCodeResourceExhausted code:GRPCErrorCodeResourceExhausted
userInfo:@{ userInfo:@{NSLocalizedDescriptionKey: @"Client does not have enough memory to hold the server response."}]];
NSLocalizedDescriptionKey :
@"Client does not have enough "
@"memory to hold the server "
@"response."
}]];
[weakSelf cancelCall]; [weakSelf cancelCall];
return; return;
} }
[weakWriteable enqueueValue:data [weakWriteable enqueueValue:data completionHandler:^{
completionHandler:^{
[weakSelf startNextRead]; [weakSelf startNextRead];
}]; }];
}]; }];
@ -276,20 +254,17 @@ static NSMutableDictionary *callFlags;
- (void)sendHeaders:(NSDictionary *)headers { - (void)sendHeaders:(NSDictionary *)headers {
// TODO(jcanizales): Add error handlers for async failures // TODO(jcanizales): Add error handlers for async failures
[_wrappedCall startBatchWithOperations:@[ [_wrappedCall startBatchWithOperations:@[[[GRPCOpSendMetadata alloc] initWithMetadata:headers
[[GRPCOpSendMetadata alloc]
initWithMetadata:headers
flags:[GRPCCall callFlagsForHost:_host path:_path] flags:[GRPCCall callFlagsForHost:_host path:_path]
handler:nil] handler:nil]]];
]];
} }
#pragma mark GRXWriteable implementation #pragma mark GRXWriteable implementation
// Only called from the call queue. The error handler will be called from the // Only called from the call queue. The error handler will be called from the
// network queue if the write didn't succeed. // network queue if the write didn't succeed.
- (void)writeMessage:(NSData *)message - (void)writeMessage:(NSData *)message withErrorHandler:(void (^)())errorHandler {
withErrorHandler:(void (^)())errorHandler {
__weak GRPCCall *weakSelf = self; __weak GRPCCall *weakSelf = self;
void(^resumingHandler)(void) = ^{ void(^resumingHandler)(void) = ^{
// Resume the request writer. // Resume the request writer.
@ -300,8 +275,7 @@ static NSMutableDictionary *callFlags;
} }
} }
}; };
[_wrappedCall startBatchWithOperations:@[ [[GRPCOpSendMessage alloc] [_wrappedCall startBatchWithOperations:@[[[GRPCOpSendMessage alloc] initWithMessage:message
initWithMessage:message
handler:resumingHandler]] handler:resumingHandler]]
errorHandler:errorHandler]; errorHandler:errorHandler];
} }
@ -317,10 +291,8 @@ static NSMutableDictionary *callFlags;
__weak GRPCCall *weakSelf = self; __weak GRPCCall *weakSelf = self;
dispatch_async(_callQueue, ^{ dispatch_async(_callQueue, ^{
[weakSelf writeMessage:value [weakSelf writeMessage:value withErrorHandler:^{
withErrorHandler:^{ [weakSelf finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
[weakSelf
finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
code:GRPCErrorCodeInternal code:GRPCErrorCodeInternal
userInfo:nil]]; userInfo:nil]];
}]; }];
@ -351,18 +323,16 @@ static NSMutableDictionary *callFlags;
#pragma mark Invoke #pragma mark Invoke
// Both handlers will eventually be called, from the network queue. Writes can // Both handlers will eventually be called, from the network queue. Writes can start immediately
// start immediately after this. // after this.
// The first one (headersHandler), when the response headers are received. // The first one (headersHandler), when the response headers are received.
// The second one (completionHandler), whenever the RPC finishes for any reason. // The second one (completionHandler), whenever the RPC finishes for any reason.
- (void)invokeCallWithHeadersHandler:(void(^)(NSDictionary *))headersHandler - (void)invokeCallWithHeadersHandler:(void(^)(NSDictionary *))headersHandler
completionHandler: completionHandler:(void(^)(NSError *, NSDictionary *))completionHandler {
(void (^)(NSError *, NSDictionary *))completionHandler {
// TODO(jcanizales): Add error handlers for async failures // TODO(jcanizales): Add error handlers for async failures
[_wrappedCall startBatchWithOperations:@[[[GRPCOpRecvMetadata alloc] [_wrappedCall startBatchWithOperations:@[[[GRPCOpRecvMetadata alloc]
initWithHandler:headersHandler]]]; initWithHandler:headersHandler]]];
[_wrappedCall [_wrappedCall startBatchWithOperations:@[[[GRPCOpRecvStatus alloc]
startBatchWithOperations:@[ [[GRPCOpRecvStatus alloc]
initWithHandler:completionHandler]]]; initWithHandler:completionHandler]]];
} }
@ -371,8 +341,7 @@ static NSMutableDictionary *callFlags;
// Response headers received. // Response headers received.
self.responseHeaders = headers; self.responseHeaders = headers;
[self startNextRead]; [self startNextRead];
} } completionHandler:^(NSError *error, NSDictionary *trailers) {
completionHandler:^(NSError *error, NSDictionary *trailers) {
self.responseTrailers = trailers; self.responseTrailers = trailers;
if (error) { if (error) {
@ -381,18 +350,15 @@ static NSMutableDictionary *callFlags;
[userInfo addEntriesFromDictionary:error.userInfo]; [userInfo addEntriesFromDictionary:error.userInfo];
} }
userInfo[kGRPCTrailersKey] = self.responseTrailers; userInfo[kGRPCTrailersKey] = self.responseTrailers;
// TODO(jcanizales): The C gRPC library doesn't guarantee that the // TODO(jcanizales): The C gRPC library doesn't guarantee that the headers block will be
// headers block will be called before this one, so an error might end // called before this one, so an error might end up with trailers but no headers. We
// up with trailers but no headers. We shouldn't call finishWithError // shouldn't call finishWithError until ater both blocks are called. It is also when this is
// until ater both blocks are called. It is also when this is done // done that we can provide a merged view of response headers and trailers in a thread-safe
// that we can provide a merged view of response headers and trailers // way.
// in a thread-safe way.
if (self.responseHeaders) { if (self.responseHeaders) {
userInfo[kGRPCHeadersKey] = self.responseHeaders; userInfo[kGRPCHeadersKey] = self.responseHeaders;
} }
error = [NSError errorWithDomain:error.domain error = [NSError errorWithDomain:error.domain code:error.code userInfo:userInfo];
code:error.code
userInfo:userInfo];
} }
[self finishWithError:error]; [self finishWithError:error];
}]; }];
@ -409,16 +375,14 @@ static NSMutableDictionary *callFlags;
_state = GRXWriterStateStarted; _state = GRXWriterStateStarted;
} }
// Create a retain cycle so that this instance lives until the RPC finishes // Create a retain cycle so that this instance lives until the RPC finishes (or is cancelled).
// (or is cancelled). This makes RPCs in which the call isn't externally // This makes RPCs in which the call isn't externally retained possible (as long as it is started
// retained possible (as long as it is started before being autoreleased). // before being autoreleased).
// Care is taken not to retain self strongly in any of the blocks used in this // Care is taken not to retain self strongly in any of the blocks used in this implementation, so
// implementation, so that the life of the instance is determined by this // that the life of the instance is determined by this retain cycle.
// retain cycle.
_retainSelf = self; _retainSelf = self;
_responseWriteable = _responseWriteable = [[GRXConcurrentWriteable alloc] initWithWriteable:writeable];
[[GRXConcurrentWriteable alloc] initWithWriteable:writeable];
_wrappedCall = [[GRPCWrappedCall alloc] initWithHost:_host path:_path]; _wrappedCall = [[GRPCWrappedCall alloc] initWithHost:_host path:_path];
NSAssert(_wrappedCall, @"Error allocating RPC objects. Low memory?"); NSAssert(_wrappedCall, @"Error allocating RPC objects. Low memory?");
@ -427,25 +391,19 @@ static NSMutableDictionary *callFlags;
[self invokeCall]; [self invokeCall];
// TODO(jcanizales): Extract this logic somewhere common. // TODO(jcanizales): Extract this logic somewhere common.
NSString *host = NSString *host = [NSURL URLWithString:[@"https://" stringByAppendingString:_host]].host;
[NSURL URLWithString:[@"https://" stringByAppendingString:_host]].host;
if (!host) { if (!host) {
// TODO(jcanizales): Check this on init. // TODO(jcanizales): Check this on init.
[NSException raise:NSInvalidArgumentException [NSException raise:NSInvalidArgumentException format:@"host of %@ is nil", _host];
format:@"host of %@ is nil", _host];
} }
__weak typeof(self) weakSelf = self; __weak typeof(self) weakSelf = self;
_connectivityMonitor = [GRPCConnectivityMonitor monitorWithHost:host]; _connectivityMonitor = [GRPCConnectivityMonitor monitorWithHost:host];
void (^handler)() = ^{ void (^handler)() = ^{
typeof(self) strongSelf = weakSelf; typeof(self) strongSelf = weakSelf;
if (strongSelf) { if (strongSelf) {
[strongSelf [strongSelf finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
code:GRPCErrorCodeUnavailable code:GRPCErrorCodeUnavailable
userInfo:@{ userInfo:@{ NSLocalizedDescriptionKey : @"Connectivity lost." }]];
NSLocalizedDescriptionKey :
@"Connectivity lost."
}]];
} }
}; };
[_connectivityMonitor handleLossWithHandler:handler [_connectivityMonitor handleLossWithHandler:handler
@ -456,8 +414,7 @@ static NSMutableDictionary *callFlags;
- (void)setState:(GRXWriterState)newState { - (void)setState:(GRXWriterState)newState {
@synchronized(self) { @synchronized(self) {
// Manual transitions are only allowed from the started or paused states. // Manual transitions are only allowed from the started or paused states.
if (_state == GRXWriterStateNotStarted || if (_state == GRXWriterStateNotStarted || _state == GRXWriterStateFinished) {
_state == GRXWriterStateFinished) {
return; return;
} }

@ -60,18 +60,17 @@
- (nonnull instancetype)init NS_UNAVAILABLE; - (nonnull instancetype)init NS_UNAVAILABLE;
/** /**
* Queue on which callbacks will be dispatched. Default is the main queue. Set * Queue on which callbacks will be dispatched. Default is the main queue. Set it before calling
* it before calling handleLossWithHandler:. * handleLossWithHandler:.
*/ */
// TODO(jcanizales): Default to a serial background queue instead. // TODO(jcanizales): Default to a serial background queue instead.
@property(nonatomic, strong, null_resettable) dispatch_queue_t queue; @property(nonatomic, strong, null_resettable) dispatch_queue_t queue;
/** /**
* Calls handler every time the connectivity to this instance's host is lost. If * Calls handler every time the connectivity to this instance's host is lost. If this instance is
* this instance is released before that happens, the handler won't be called. * released before that happens, the handler won't be called.
* Only one handler is active at a time, so if this method is called again * Only one handler is active at a time, so if this method is called again before the previous
* before the previous handler has been called, it might never be called at all * handler has been called, it might never be called at all (or yes, if it has already been queued).
* (or yes, if it has already been queued).
*/ */
- (void)handleLossWithHandler:(nonnull void (^)())handler - (void)handleLossWithHandler:(nonnull void (^)())handler
wifiStatusChangeHandler:(nonnull void (^)())wifiStatusChangeHandler; wifiStatusChangeHandler:(nonnull void (^)())wifiStatusChangeHandler;

@ -66,12 +66,11 @@
#undef GRPC_XMACRO_ITEM #undef GRPC_XMACRO_ITEM
- (BOOL)isHostReachable { - (BOOL)isHostReachable {
// Note: connectionOnDemand means it'll be reachable only if using the // Note: connectionOnDemand means it'll be reachable only if using the CFSocketStream API or APIs
// CFSocketStream API or APIs on top of it. // on top of it.
// connectionRequired means we can't tell until a connection is attempted // connectionRequired means we can't tell until a connection is attempted (e.g. for VPN on
// (e.g. for VPN on demand). // demand).
return self.reachable && !self.interventionRequired && return self.reachable && !self.interventionRequired && !self.connectionOnDemand;
!self.connectionOnDemand;
} }
- (NSString *)description { - (NSString *)description {
@ -92,9 +91,7 @@
#include "GRPCReachabilityFlagNames.xmacro.h" #include "GRPCReachabilityFlagNames.xmacro.h"
#undef GRPC_XMACRO_ITEM #undef GRPC_XMACRO_ITEM
return activeOptions.count == 0 return activeOptions.count == 0 ? @"(none)" : [activeOptions componentsJoinedByString:@", "];
? @"(none)"
: [activeOptions componentsJoinedByString:@", "];
} }
- (BOOL)isEqual:(id)object { - (BOOL)isEqual:(id)object {
@ -109,16 +106,15 @@
#pragma mark Connectivity Monitor #pragma mark Connectivity Monitor
// Assumes the third argument is a block that accepts a GRPCReachabilityFlags // Assumes the third argument is a block that accepts a GRPCReachabilityFlags object, and passes the
// object, and passes the received ones to it. // received ones to it.
static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target, static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
SCNetworkReachabilityFlags flags, SCNetworkReachabilityFlags flags,
void *info) { void *info) {
#pragma unused (target) #pragma unused (target)
// This can be called many times with the same info. The info is retained by // This can be called many times with the same info. The info is retained by SCNetworkReachability
// SCNetworkReachability while this function is being executed. // while this function is being executed.
void (^handler)(GRPCReachabilityFlags *) = void (^handler)(GRPCReachabilityFlags *) = (__bridge void (^)(GRPCReachabilityFlags *))info;
(__bridge void (^)(GRPCReachabilityFlags *))info;
handler([[GRPCReachabilityFlags alloc] initWithFlags:flags]); handler([[GRPCReachabilityFlags alloc] initWithFlags:flags]);
} }
@ -127,8 +123,7 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
GRPCReachabilityFlags *_previousReachabilityFlags; GRPCReachabilityFlags *_previousReachabilityFlags;
} }
- (nullable instancetype)initWithReachability: - (nullable instancetype)initWithReachability:(nullable SCNetworkReachabilityRef)reachability {
(nullable SCNetworkReachabilityRef)reachability {
if (!reachability) { if (!reachability) {
return nil; return nil;
} }
@ -149,8 +144,7 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
SCNetworkReachabilityRef reachability = SCNetworkReachabilityRef reachability =
SCNetworkReachabilityCreateWithName(NULL, hostName); SCNetworkReachabilityCreateWithName(NULL, hostName);
GRPCConnectivityMonitor *returnValue = GRPCConnectivityMonitor *returnValue = [[self alloc] initWithReachability:reachability];
[[self alloc] initWithReachability:reachability];
if (reachability) { if (reachability) {
CFRelease(reachability); CFRelease(reachability);
} }
@ -176,8 +170,8 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
} }
- (void)startListeningWithHandler:(void (^)(GRPCReachabilityFlags *))handler { - (void)startListeningWithHandler:(void (^)(GRPCReachabilityFlags *))handler {
// Copy to ensure the handler block is in the heap (and so can't be // Copy to ensure the handler block is in the heap (and so can't be deallocated when this method
// deallocated when this method returns). // returns).
void (^copiedHandler)(GRPCReachabilityFlags *) = [handler copy]; void (^copiedHandler)(GRPCReachabilityFlags *) = [handler copy];
SCNetworkReachabilityContext context = { SCNetworkReachabilityContext context = {
.version = 0, .version = 0,
@ -185,10 +179,8 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target,
.retain = CFRetain, .retain = CFRetain,
.release = CFRelease, .release = CFRelease,
}; };
// The following will retain context.info, and release it when the callback is // The following will retain context.info, and release it when the callback is set to NULL.
// set to NULL. SCNetworkReachabilitySetCallback(_reachabilityRef, PassFlagsToContextInfoBlock, &context);
SCNetworkReachabilitySetCallback(_reachabilityRef,
PassFlagsToContextInfoBlock, &context);
SCNetworkReachabilitySetDispatchQueue(_reachabilityRef, _queue); SCNetworkReachabilitySetDispatchQueue(_reachabilityRef, _queue);
} }

@ -33,9 +33,9 @@
#import "GRPCHost.h" #import "GRPCHost.h"
#import <GRPCClient/GRPCCall.h>
#include <grpc/grpc.h> #include <grpc/grpc.h>
#include <grpc/grpc_security.h> #include <grpc/grpc_security.h>
#import <GRPCClient/GRPCCall.h>
#ifdef GRPC_COMPILE_WITH_CRONET #ifdef GRPC_COMPILE_WITH_CRONET
#import <GRPCClient/GRPCCall+ChannelArg.h> #import <GRPCClient/GRPCCall+ChannelArg.h>
#import <GRPCClient/GRPCCall+Cronet.h> #import <GRPCClient/GRPCCall+Cronet.h>
@ -48,8 +48,7 @@
NS_ASSUME_NONNULL_BEGIN NS_ASSUME_NONNULL_BEGIN
// TODO(jcanizales): Generate the version in a standalone header, from // TODO(jcanizales): Generate the version in a standalone header, from templates. Like
// templates. Like
// templates/src/core/surface/version.c.template . // templates/src/core/surface/version.c.template .
#define GRPC_OBJC_VERSION_STRING @"1.0.0" #define GRPC_OBJC_VERSION_STRING @"1.0.0"
@ -62,8 +61,7 @@ static NSMutableDictionary *kHostCache;
static GRPCConnectivityMonitor *connectivityMonitor = nil; static GRPCConnectivityMonitor *connectivityMonitor = nil;
@implementation GRPCHost { @implementation GRPCHost {
// TODO(mlumish): Investigate whether caching channels with strong links is a // TODO(mlumish): Investigate whether caching channels with strong links is a good idea.
// good idea.
GRPCChannel *_channel; GRPCChannel *_channel;
} }
@ -83,13 +81,11 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
return nil; return nil;
} }
// To provide a default port, we try to interpret the address. If it's just a // To provide a default port, we try to interpret the address. If it's just a host name without
// host name without scheme and without port, we'll use port 443. If it has a // scheme and without port, we'll use port 443. If it has a scheme, we pass it untouched to the C
// scheme, we pass it untouched to the C gRPC library. // gRPC library.
// TODO(jcanizales): Add unit tests for the types of addresses we want to let // TODO(jcanizales): Add unit tests for the types of addresses we want to let pass untouched.
// pass untouched. NSURL *hostURL = [NSURL URLWithString:[@"https://" stringByAppendingString:address]];
NSURL *hostURL =
[NSURL URLWithString:[@"https://" stringByAppendingString:address]];
if (hostURL.host && !hostURL.port) { if (hostURL.host && !hostURL.port) {
address = [hostURL.host stringByAppendingString:@":443"]; address = [hostURL.host stringByAppendingString:@":443"];
} }
@ -99,7 +95,6 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
dispatch_once(&cacheInitialization, ^{ dispatch_once(&cacheInitialization, ^{
kHostCache = [NSMutableDictionary dictionary]; kHostCache = [NSMutableDictionary dictionary];
}); });
@synchronized(kHostCache) { @synchronized(kHostCache) {
GRPCHost *cachedHost = kHostCache[address]; GRPCHost *cachedHost = kHostCache[address];
if (cachedHost) { if (cachedHost) {
@ -164,16 +159,13 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
static dispatch_once_t loading; static dispatch_once_t loading;
dispatch_once(&loading, ^{ dispatch_once(&loading, ^{
NSString *defaultPath = @"gRPCCertificates.bundle/roots"; // .pem NSString *defaultPath = @"gRPCCertificates.bundle/roots"; // .pem
// Do not use NSBundle.mainBundle, as it's nil for tests of library // Do not use NSBundle.mainBundle, as it's nil for tests of library projects.
// projects.
NSBundle *bundle = [NSBundle bundleForClass:self.class]; NSBundle *bundle = [NSBundle bundleForClass:self.class];
NSString *path = [bundle pathForResource:defaultPath ofType:@"pem"]; NSString *path = [bundle pathForResource:defaultPath ofType:@"pem"];
NSError *error; NSError *error;
// Files in PEM format can have non-ASCII characters in their comments (e.g. // Files in PEM format can have non-ASCII characters in their comments (e.g. for the name of the
// for the name of the issuer). Load them as UTF8 and produce an ASCII // issuer). Load them as UTF8 and produce an ASCII equivalent.
// equivalent. NSString *contentInUTF8 = [NSString stringWithContentsOfFile:path
NSString *contentInUTF8 =
[NSString stringWithContentsOfFile:path
encoding:NSUTF8StringEncoding encoding:NSUTF8StringEncoding
error:&error]; error:&error];
if (contentInUTF8 == nil) { if (contentInUTF8 == nil) {
@ -193,14 +185,10 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
if (errorPtr) { if (errorPtr) {
*errorPtr = kDefaultRootsError; *errorPtr = kDefaultRootsError;
} }
NSAssert(kDefaultRootsASCII, NSAssert(kDefaultRootsASCII, @"Could not read gRPCCertificates.bundle/roots.pem. This file, "
@"Could not read gRPCCertificates.bundle/roots.pem. This file, " "with the root certificates, is needed to establish secure (TLS) connections. "
"with the root certificates, is needed to establish secure " "Because the file is distributed with the gRPC library, this error is usually a sign "
"(TLS) connections. " "that the library wasn't configured correctly for your project. Error: %@",
"Because the file is distributed with the gRPC library, this "
"error is usually a sign "
"that the library wasn't configured correctly for your "
"project. Error: %@",
kDefaultRootsError); kDefaultRootsError);
return NO; return NO;
} }
@ -212,11 +200,9 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
creds = grpc_ssl_credentials_create(rootsASCII.bytes, NULL, NULL); creds = grpc_ssl_credentials_create(rootsASCII.bytes, NULL, NULL);
} else { } else {
grpc_ssl_pem_key_cert_pair key_cert_pair; grpc_ssl_pem_key_cert_pair key_cert_pair;
NSData *privateKeyASCII = NSData *privateKeyASCII = [pemPrivateKey dataUsingEncoding:NSASCIIStringEncoding
[pemPrivateKey dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES]; allowLossyConversion:YES];
NSData *certChainASCII = NSData *certChainASCII = [pemCertChain dataUsingEncoding:NSASCIIStringEncoding
[pemCertChain dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES]; allowLossyConversion:YES];
key_cert_pair.private_key = privateKeyASCII.bytes; key_cert_pair.private_key = privateKeyASCII.bytes;
key_cert_pair.cert_chain = certChainASCII.bytes; key_cert_pair.cert_chain = certChainASCII.bytes;
@ -237,8 +223,7 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
NSMutableDictionary *args = [NSMutableDictionary dictionary]; NSMutableDictionary *args = [NSMutableDictionary dictionary];
// TODO(jcanizales): Add OS and device information (see // TODO(jcanizales): Add OS and device information (see
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#user-agents // https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#user-agents ).
// ).
NSString *userAgent = @"grpc-objc/" GRPC_OBJC_VERSION_STRING; NSString *userAgent = @"grpc-objc/" GRPC_OBJC_VERSION_STRING;
if (_userAgentPrefix) { if (_userAgentPrefix) {
userAgent = [_userAgentPrefix stringByAppendingFormat:@" %@", userAgent]; userAgent = [_userAgentPrefix stringByAppendingFormat:@" %@", userAgent];
@ -266,15 +251,12 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
GRPCChannel *channel; GRPCChannel *channel;
@synchronized(self) { @synchronized(self) {
if (_channelCreds == nil) { if (_channelCreds == nil) {
[self setTLSPEMRootCerts:nil [self setTLSPEMRootCerts:nil withPrivateKey:nil withCertChain:nil error:nil];
withPrivateKey:nil
withCertChain:nil
error:nil];
} }
#ifdef GRPC_COMPILE_WITH_CRONET #ifdef GRPC_COMPILE_WITH_CRONET
if (useCronet) { if (useCronet) {
channel = channel = [GRPCChannel secureCronetChannelWithHost:_address
[GRPCChannel secureCronetChannelWithHost:_address channelArgs:args]; channelArgs:args];
} else } else
#endif #endif
{ {
@ -290,8 +272,7 @@ static GRPCConnectivityMonitor *connectivityMonitor = nil;
} }
- (NSString *)hostName { - (NSString *)hostName {
// TODO(jcanizales): Default to nil instead of _address when Issue #2635 is // TODO(jcanizales): Default to nil instead of _address when Issue #2635 is clarified.
// clarified.
return _hostNameOverride ?: _address; return _hostNameOverride ?: _address;
} }

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@ -449,12 +460,15 @@
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@ -470,12 +484,15 @@
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@ -643,6 +666,111 @@
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