71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
#include <mbgl/storage/asset_file_source.hpp>
|
|
#include <mbgl/storage/response.hpp>
|
|
#include <mbgl/util/string.hpp>
|
|
#include <mbgl/util/thread.hpp>
|
|
#include <mbgl/util/url.hpp>
|
|
#include <mbgl/util/util.hpp>
|
|
#include <mbgl/util/io.hpp>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
namespace mbgl {
|
|
|
|
class AssetFileSource::Impl {
|
|
public:
|
|
Impl(const std::string& root_)
|
|
: root(root_) {
|
|
}
|
|
|
|
void request(const std::string& url, FileSource::Callback callback) {
|
|
std::string path;
|
|
|
|
if (url.size() <= 8 || url[8] == '/') {
|
|
// This is an empty or absolute path.
|
|
path = mbgl::util::percentDecode(url.substr(8));
|
|
} else {
|
|
// This is a relative path. Prefix with the application root.
|
|
path = root + "/" + mbgl::util::percentDecode(url.substr(8));
|
|
}
|
|
|
|
Response response;
|
|
|
|
struct stat buf;
|
|
int result = stat(path.c_str(), &buf);
|
|
|
|
if (result == 0 && S_ISDIR(buf.st_mode)) {
|
|
response.error = std::make_unique<Response::Error>(Response::Error::Reason::NotFound);
|
|
} else if (result == -1 && errno == ENOENT) {
|
|
response.error = std::make_unique<Response::Error>(Response::Error::Reason::NotFound);
|
|
} else {
|
|
try {
|
|
response.data = std::make_shared<std::string>(util::read_file(path));
|
|
} catch (...) {
|
|
response.error = std::make_unique<Response::Error>(
|
|
Response::Error::Reason::Other,
|
|
util::toString(std::current_exception()));
|
|
}
|
|
}
|
|
|
|
callback(response);
|
|
}
|
|
|
|
private:
|
|
std::string root;
|
|
};
|
|
|
|
AssetFileSource::AssetFileSource(const std::string& root)
|
|
: thread(std::make_unique<util::Thread<Impl>>(
|
|
util::ThreadContext{"AssetFileSource", util::ThreadType::Worker, util::ThreadPriority::Regular},
|
|
root)) {
|
|
}
|
|
|
|
AssetFileSource::~AssetFileSource() = default;
|
|
|
|
std::unique_ptr<AsyncRequest> AssetFileSource::request(const Resource& resource, Callback callback) {
|
|
return thread->invokeWithCallback(&Impl::request, callback, resource.url);
|
|
}
|
|
|
|
} // namespace mbgl
|