5a7d2fd60e
I regenerated assets.zip so that all file paths have an `assets/` prefix, as the Android AssetFileSource implementation asserts, and removed `TEST_DATA` from the paths.
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
#include <mbgl/storage/asset_file_source.hpp>
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#include <mbgl/storage/response.hpp>
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#include <mbgl/util/string.hpp>
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#include <mbgl/util/thread.hpp>
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#include <mbgl/util/url.hpp>
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#include <mbgl/util/util.hpp>
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#include <mbgl/util/io.hpp>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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namespace mbgl {
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class AssetFileRequest : public FileRequest {
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public:
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AssetFileRequest(std::unique_ptr<WorkRequest> workRequest_)
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: workRequest(std::move(workRequest_)) {
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}
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std::unique_ptr<WorkRequest> workRequest;
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};
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class AssetFileSource::Impl {
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public:
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Impl(const std::string& root_)
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: root(root_) {
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}
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void request(const std::string& url, FileSource::Callback callback) {
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std::string path;
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if (url.size() <= 8 || url[8] == '/') {
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// This is an empty or absolute path.
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path = mbgl::util::percentDecode(url.substr(8));
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} else {
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// This is a relative path. Prefix with the application root.
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path = root + "/" + mbgl::util::percentDecode(url.substr(8));
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}
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Response response;
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struct stat buf;
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int result = stat(path.c_str(), &buf);
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if (result == 0 && S_ISDIR(buf.st_mode)) {
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response.error = std::make_unique<Response::Error>(Response::Error::Reason::NotFound);
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} else if (result == -1 && errno == ENOENT) {
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response.error = std::make_unique<Response::Error>(Response::Error::Reason::NotFound);
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} else {
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try {
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response.data = std::make_shared<std::string>(util::read_file(path));
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} catch (...) {
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response.error = std::make_unique<Response::Error>(
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Response::Error::Reason::Other,
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util::toString(std::current_exception()));
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}
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}
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callback(response);
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}
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private:
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std::string root;
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};
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AssetFileSource::AssetFileSource(const std::string& root)
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: thread(std::make_unique<util::Thread<Impl>>(
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util::ThreadContext{"AssetFileSource", util::ThreadType::Worker, util::ThreadPriority::Regular},
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root)) {
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}
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AssetFileSource::~AssetFileSource() = default;
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std::unique_ptr<FileRequest> AssetFileSource::request(const Resource& resource, Callback callback) {
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return std::make_unique<AssetFileRequest>(thread->invokeWithCallback(&Impl::request, callback, resource.url));
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}
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} // namespace mbgl
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