379 lines
13 KiB
C++
379 lines
13 KiB
C++
#include <mbgl/storage/http_context_base.hpp>
|
|
#include <mbgl/storage/http_request_base.hpp>
|
|
#include <mbgl/storage/resource.hpp>
|
|
#include <mbgl/storage/response.hpp>
|
|
#include <mbgl/util/chrono.hpp>
|
|
#include <mbgl/platform/log.hpp>
|
|
#include <mbgl/android/jni.hpp>
|
|
|
|
#include <mbgl/util/time.hpp>
|
|
#include <mbgl/util/util.hpp>
|
|
#include <mbgl/util/string.hpp>
|
|
#include <mbgl/util/parsedate.h>
|
|
|
|
#include <jni.h>
|
|
|
|
namespace mbgl {
|
|
|
|
void JNICALL nativeOnFailure(JNIEnv *env, jobject obj, jlong nativePtr, jint type, jstring message);
|
|
void JNICALL nativeOnResponse(JNIEnv *env, jobject obj, jlong nativePtr, jint code, jstring message, jstring etag, jstring modified, jstring cacheControl, jstring expires, jbyteArray body);
|
|
|
|
class HTTPAndroidRequest;
|
|
|
|
class HTTPAndroidContext : public HTTPContextBase {
|
|
public:
|
|
explicit HTTPAndroidContext(uv_loop_t *loop);
|
|
~HTTPAndroidContext();
|
|
|
|
HTTPRequestBase* createRequest(const Resource&,
|
|
RequestBase::Callback,
|
|
uv_loop_t*,
|
|
std::shared_ptr<const Response>) final;
|
|
|
|
uv_loop_t *loop = nullptr;
|
|
|
|
JavaVM *vm = nullptr;
|
|
jobject obj = nullptr;
|
|
};
|
|
|
|
class HTTPAndroidRequest : public HTTPRequestBase {
|
|
public:
|
|
HTTPAndroidRequest(HTTPAndroidContext*,
|
|
const Resource&,
|
|
Callback,
|
|
uv_loop_t*,
|
|
std::shared_ptr<const Response>);
|
|
~HTTPAndroidRequest();
|
|
|
|
void cancel() final;
|
|
void retry() final;
|
|
|
|
void onFailure(int type, std::string message);
|
|
void onResponse(int code, std::string message, std::string etag, std::string modified, std::string cacheControl, std::string expires, std::string body);
|
|
|
|
private:
|
|
void retry(uint64_t timeout) final;
|
|
void finish();
|
|
void start();
|
|
|
|
HTTPAndroidContext *context = nullptr;
|
|
|
|
bool cancelled = false;
|
|
|
|
std::unique_ptr<Response> response;
|
|
const std::shared_ptr<const Response> existingResponse;
|
|
ResponseStatus status = ResponseStatus::PermanentError;
|
|
|
|
jobject obj = nullptr;
|
|
|
|
uv::async async;
|
|
uv::timer timer;
|
|
enum : bool { PreemptImmediately, ExponentialBackoff } strategy = PreemptImmediately;
|
|
int attempts = 0;
|
|
|
|
static const int maxAttempts = 4;
|
|
|
|
static const int connectionError = 0;
|
|
static const int temporaryError = 1;
|
|
static const int permanentError = 2;
|
|
static const int canceledError = 3;
|
|
};
|
|
|
|
// -------------------------------------------------------------------------------------------------
|
|
|
|
HTTPAndroidContext::HTTPAndroidContext(uv_loop_t *loop_)
|
|
: HTTPContextBase(loop_),
|
|
loop(loop_),
|
|
vm(mbgl::android::theJVM) {
|
|
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(vm, &env, "HTTPAndroidContext::HTTPAndroidContext()");
|
|
|
|
const std::vector<JNINativeMethod> methods = {
|
|
{"nativeOnFailure", "(JILjava/lang/String;)V", reinterpret_cast<void *>(&nativeOnFailure)},
|
|
{"nativeOnResponse",
|
|
"(JILjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;[B)V",
|
|
reinterpret_cast<void *>(&nativeOnResponse)}
|
|
};
|
|
|
|
if (env->RegisterNatives(mbgl::android::httpRequestClass, methods.data(), methods.size()) < 0) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
obj = env->CallStaticObjectMethod(mbgl::android::httpContextClass, mbgl::android::httpContextGetInstanceId);
|
|
if (env->ExceptionCheck() || (obj == nullptr)) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
obj = env->NewGlobalRef(obj);
|
|
if (obj == nullptr) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
mbgl::android::detach_jni_thread(vm, &env, detach);
|
|
}
|
|
|
|
HTTPAndroidContext::~HTTPAndroidContext() {
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(vm, &env, "HTTPAndroidContext::~HTTPAndroidContext()");
|
|
|
|
env->DeleteGlobalRef(obj);
|
|
obj = nullptr;
|
|
|
|
mbgl::android::detach_jni_thread(vm, &env, detach);
|
|
|
|
vm = nullptr;
|
|
}
|
|
|
|
HTTPRequestBase* HTTPAndroidContext::createRequest(const Resource& resource,
|
|
RequestBase::Callback callback,
|
|
uv_loop_t* loop_,
|
|
std::shared_ptr<const Response> response) {
|
|
return new HTTPAndroidRequest(this, resource, callback, loop_, response);
|
|
}
|
|
|
|
HTTPAndroidRequest::HTTPAndroidRequest(HTTPAndroidContext* context_, const Resource& resource_, Callback callback_, uv_loop_t* loop, std::shared_ptr<const Response> response_)
|
|
: HTTPRequestBase(resource_, callback_),
|
|
context(context_),
|
|
existingResponse(response_),
|
|
async(loop, [this] { finish(); }),
|
|
timer(loop) {
|
|
|
|
std::string etagStr;
|
|
std::string modifiedStr;
|
|
if (existingResponse) {
|
|
if (!existingResponse->etag.empty()) {
|
|
etagStr = existingResponse->etag;
|
|
} else if (existingResponse->modified) {
|
|
modifiedStr = util::rfc1123(existingResponse->modified);
|
|
}
|
|
}
|
|
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(context->vm, &env, "HTTPAndroidContext::HTTPAndroidRequest()");
|
|
|
|
jstring resourceUrl = mbgl::android::std_string_to_jstring(env, resource.url);
|
|
jstring userAgent = mbgl::android::std_string_to_jstring(env, "MapboxGL/1.0");
|
|
jstring etag = mbgl::android::std_string_to_jstring(env, etagStr);
|
|
jstring modified = mbgl::android::std_string_to_jstring(env, modifiedStr);
|
|
obj = env->CallObjectMethod(context->obj, mbgl::android::httpContextCreateRequestId, reinterpret_cast<jlong>(this), resourceUrl, userAgent, etag, modified);
|
|
if (env->ExceptionCheck() || (obj == nullptr)) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
obj = env->NewGlobalRef(obj);
|
|
if (obj == nullptr) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
mbgl::android::detach_jni_thread(context->vm, &env, detach);
|
|
|
|
context->addRequest(this);
|
|
start();
|
|
}
|
|
|
|
HTTPAndroidRequest::~HTTPAndroidRequest() {
|
|
context->removeRequest(this);
|
|
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(context->vm, &env, "HTTPAndroidContext::~HTTPAndroidRequest()");
|
|
|
|
env->DeleteGlobalRef(obj);
|
|
obj = nullptr;
|
|
|
|
mbgl::android::detach_jni_thread(context->vm, &env, detach);
|
|
|
|
timer.stop();
|
|
}
|
|
|
|
void HTTPAndroidRequest::cancel() {
|
|
cancelled = true;
|
|
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(context->vm, &env, "HTTPAndroidContext::cancel()");
|
|
|
|
env->CallVoidMethod(obj, mbgl::android::httpRequestCancelId);
|
|
if (env->ExceptionCheck()) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
mbgl::android::detach_jni_thread(context->vm, &env, detach);
|
|
}
|
|
|
|
void HTTPAndroidRequest::start() {
|
|
attempts++;
|
|
|
|
JNIEnv *env = nullptr;
|
|
bool detach = mbgl::android::attach_jni_thread(context->vm, &env, "HTTPAndroidContext::start()");
|
|
|
|
env->CallVoidMethod(obj, mbgl::android::httpRequestStartId);
|
|
if (env->ExceptionCheck()) {
|
|
env->ExceptionDescribe();
|
|
}
|
|
|
|
mbgl::android::detach_jni_thread(context->vm, &env, detach);
|
|
}
|
|
|
|
void HTTPAndroidRequest::retry(uint64_t timeout) {
|
|
response.reset();
|
|
|
|
timer.stop();
|
|
timer.start(timeout, 0, [this] { start(); });
|
|
}
|
|
|
|
void HTTPAndroidRequest::retry() {
|
|
if (strategy == PreemptImmediately) {
|
|
timer.stop();
|
|
timer.start(0, 0, [this] { start(); });
|
|
}
|
|
}
|
|
|
|
void HTTPAndroidRequest::finish() {
|
|
if (!cancelled) {
|
|
if (status == ResponseStatus::TemporaryError && attempts < maxAttempts) {
|
|
strategy = ExponentialBackoff;
|
|
return retry((1 << (attempts - 1)) * 1000);
|
|
} else if (status == ResponseStatus::ConnectionError && attempts < maxAttempts) {
|
|
strategy = PreemptImmediately;
|
|
return retry(30000);
|
|
}
|
|
|
|
if (status == ResponseStatus::NotModified) {
|
|
notify(std::move(response), FileCache::Hint::Refresh);
|
|
} else {
|
|
notify(std::move(response), FileCache::Hint::Full);
|
|
}
|
|
}
|
|
|
|
delete this;
|
|
}
|
|
|
|
int64_t parseCacheControl(const char *value) {
|
|
if (value) {
|
|
unsigned long long seconds = 0;
|
|
// TODO: cache-control may contain other information as well:
|
|
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9
|
|
if (std::sscanf(value, "max-age=%llu", &seconds) == 1) {
|
|
return std::chrono::duration_cast<std::chrono::seconds>(
|
|
std::chrono::system_clock::now().time_since_epoch()).count() +
|
|
seconds;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void HTTPAndroidRequest::onResponse(int code, std::string message, std::string etag, std::string modified, std::string cacheControl, std::string expires, std::string body) {
|
|
if (!response) {
|
|
response = std::make_unique<Response>();
|
|
}
|
|
|
|
response->message = message;
|
|
response->modified = parse_date(modified.c_str());
|
|
response->etag = etag;
|
|
response->expires = parseCacheControl(cacheControl.c_str());
|
|
if (!expires.empty()) {
|
|
response->expires = parse_date(expires.c_str());
|
|
}
|
|
response->data = body;
|
|
|
|
if (code == 304) {
|
|
if (existingResponse) {
|
|
response->status = existingResponse->status;
|
|
response->message = existingResponse->message;
|
|
response->modified = existingResponse->modified;
|
|
response->etag = existingResponse->etag;
|
|
response->data = existingResponse->data;
|
|
status = ResponseStatus::NotModified;
|
|
} else {
|
|
response->status = Response::Successful;
|
|
status = ResponseStatus::Successful;
|
|
}
|
|
} else if (code == 200) {
|
|
response->status = Response::Successful;
|
|
status = ResponseStatus::Successful;
|
|
} else if (responseCode == 404) {
|
|
response->status = Response::NotFound;
|
|
status = ResponseStatus::Successful;
|
|
} else if (code >= 500 && code < 600) {
|
|
response->status = Response::Error;
|
|
response->message = "HTTP status code " + util::toString(code);
|
|
status = ResponseStatus::TemporaryError;
|
|
} else {
|
|
response->status = Response::Error;
|
|
response->message = "HTTP status code " + util::toString(code);
|
|
status = ResponseStatus::PermanentError;
|
|
}
|
|
|
|
async.send();
|
|
}
|
|
|
|
void HTTPAndroidRequest::onFailure(int type, std::string message) {
|
|
if (type != canceledError) {
|
|
if (!response) {
|
|
response = std::make_unique<Response>();
|
|
}
|
|
|
|
response->status = Response::Error;
|
|
response->message = message;
|
|
|
|
switch (type) {
|
|
case connectionError:
|
|
status = ResponseStatus::ConnectionError;
|
|
break;
|
|
case temporaryError:
|
|
status = ResponseStatus::TemporaryError;
|
|
break;
|
|
default:
|
|
status = ResponseStatus::PermanentError;
|
|
}
|
|
} else {
|
|
status = ResponseStatus::Canceled;
|
|
}
|
|
|
|
async.send();
|
|
}
|
|
|
|
std::unique_ptr<HTTPContextBase> HTTPContextBase::createContext(uv_loop_t* loop) {
|
|
return std::make_unique<HTTPAndroidContext>(loop);
|
|
}
|
|
|
|
#pragma clang diagnostic ignored "-Wunused-parameter"
|
|
|
|
void JNICALL nativeOnFailure(JNIEnv *env, jobject obj, jlong nativePtr, jint type, jstring message) {
|
|
mbgl::Log::Debug(mbgl::Event::JNI, "nativeOnFailure");
|
|
assert(nativePtr != 0);
|
|
HTTPAndroidRequest *request = reinterpret_cast<HTTPAndroidRequest *>(nativePtr);
|
|
std::string messageStr = mbgl::android::std_string_from_jstring(env, message);
|
|
return request->onFailure(type, messageStr);
|
|
}
|
|
|
|
void JNICALL nativeOnResponse(JNIEnv *env, jobject obj, jlong nativePtr, jint code, jstring message, jstring etag, jstring modified, jstring cacheControl, jstring expires, jbyteArray body) {
|
|
mbgl::Log::Debug(mbgl::Event::JNI, "nativeOnResponse");
|
|
assert(nativePtr != 0);
|
|
HTTPAndroidRequest *request = reinterpret_cast<HTTPAndroidRequest *>(nativePtr);
|
|
std::string messageStr = mbgl::android::std_string_from_jstring(env, message);
|
|
std::string etagStr;
|
|
if (etag != nullptr) {
|
|
etagStr = mbgl::android::std_string_from_jstring(env, etag);
|
|
}
|
|
std::string modifiedStr;
|
|
if (modified != nullptr) {
|
|
modifiedStr = mbgl::android::std_string_from_jstring(env, modified);
|
|
}
|
|
std::string cacheControlStr;
|
|
if (cacheControl != nullptr) {
|
|
cacheControlStr = mbgl::android::std_string_from_jstring(env, cacheControl);
|
|
}
|
|
std::string expiresStr;
|
|
if (expires != nullptr) {
|
|
expiresStr = mbgl::android::std_string_from_jstring(env, expires);
|
|
}
|
|
jbyte* bodyData = env->GetByteArrayElements(body, nullptr);
|
|
std::string bodyStr(reinterpret_cast<char*>(bodyData), env->GetArrayLength(body));
|
|
env->ReleaseByteArrayElements(body, bodyData, JNI_ABORT);
|
|
return request->onResponse(code, messageStr, etagStr, modifiedStr, cacheControlStr, expiresStr, bodyStr);
|
|
}
|
|
|
|
}
|