diff options
Diffstat (limited to 'platform/default/asset_request_libuv.cpp')
-rw-r--r-- | platform/default/asset_request_libuv.cpp | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/platform/default/asset_request_libuv.cpp b/platform/default/asset_request_libuv.cpp deleted file mode 100644 index 0e0b7280a7..0000000000 --- a/platform/default/asset_request_libuv.cpp +++ /dev/null @@ -1,223 +0,0 @@ -#include <mbgl/storage/asset_request.hpp> -#include <mbgl/storage/response.hpp> -#include <mbgl/platform/platform.hpp> -#include <mbgl/util/std.hpp> - -#include <uv.h> - -#include <limits> - -namespace mbgl { - -struct AssetRequestBaton { - AssetRequestBaton(AssetRequest *request_, const std::string &path, uv_loop_t *loop); - ~AssetRequestBaton(); - - void cancel(); - static void fileOpened(uv_fs_t *req); - static void fileStated(uv_fs_t *req); - static void fileRead(uv_fs_t *req); - static void fileClosed(uv_fs_t *req); - static void notifyError(uv_fs_t *req); - static void cleanup(uv_fs_t *req); - - const std::thread::id threadId; - AssetRequest *request = nullptr; - uv_fs_t req; - uv_file fd = -1; - bool canceled = false; - std::string body; - uv_buf_t buffer; -}; - -AssetRequestBaton::AssetRequestBaton(AssetRequest *request_, const std::string &path, uv_loop_t *loop) - : threadId(std::this_thread::get_id()), request(request_) { - req.data = this; - uv_fs_open(loop, &req, path.c_str(), O_RDONLY, S_IRUSR, fileOpened); -} - -AssetRequestBaton::~AssetRequestBaton() { -} - -void AssetRequestBaton::cancel() { - canceled = true; - - // uv_cancel fails frequently when the request has already been started. - // In that case, we have to let it complete and check the canceled bool - // instead. - uv_cancel((uv_req_t *)&req); -} - -void AssetRequestBaton::notifyError(uv_fs_t *req) { - AssetRequestBaton *ptr = reinterpret_cast<AssetRequestBaton *>(req->data); - assert(std::this_thread::get_id() == ptr->threadId); - - if (ptr->request && req->result < 0 && !ptr->canceled && req->result != UV_ECANCELED) { - ptr->request->response = util::make_unique<Response>(); - ptr->request->response->code = req->result == UV_ENOENT ? 404 : 500; -#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10 - ptr->request->response->message = uv_strerror(uv_last_error(req->loop)); -#else - ptr->request->response->message = uv_strerror(int(req->result)); -#endif - ptr->request->notify(); - } -} - -void AssetRequestBaton::fileOpened(uv_fs_t *req) { - AssetRequestBaton *ptr = reinterpret_cast<AssetRequestBaton *>(req->data); - assert(std::this_thread::get_id() == ptr->threadId); - - if (req->result < 0) { - // Opening failed or was canceled. There isn't much left we can do. - notifyError(req); - cleanup(req); - } else { - const uv_file fd = uv_file(req->result); - - // We're going to reuse this handle, so we need to cleanup first. - uv_fs_req_cleanup(req); - - if (ptr->canceled || !ptr->request) { - // Either the AssetRequest object has been destructed, or the - // request was canceled. - uv_fs_close(req->loop, req, fd, fileClosed); - } else { - ptr->fd = fd; - uv_fs_fstat(req->loop, req, fd, fileStated); - } - } -} - -void AssetRequestBaton::fileStated(uv_fs_t *req) { - AssetRequestBaton *ptr = reinterpret_cast<AssetRequestBaton *>(req->data); - assert(std::this_thread::get_id() == ptr->threadId); - - if (req->result != 0 || ptr->canceled || !ptr->request) { - // Stating failed or was canceled. We already have an open file handle - // though, which we'll have to close. - notifyError(req); - - uv_fs_req_cleanup(req); - uv_fs_close(req->loop, req, ptr->fd, fileClosed); - } else { -#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10 - const uv_statbuf_t *stat = static_cast<const uv_statbuf_t *>(req->ptr); -#else - const uv_stat_t *stat = static_cast<const uv_stat_t *>(req->ptr); -#endif - if (stat->st_size > std::numeric_limits<int>::max()) { - // File is too large for us to open this way because uv_buf's only support unsigned - // ints as maximum size. - if (ptr->request) { - ptr->request->response = util::make_unique<Response>(); - ptr->request->response->code = UV_EFBIG; -#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10 - ptr->request->response->message = uv_strerror(uv_err_t {UV_EFBIG, 0}); -#else - ptr->request->response->message = uv_strerror(UV_EFBIG); -#endif - ptr->request->notify(); - } - - uv_fs_req_cleanup(req); - uv_fs_close(req->loop, req, ptr->fd, fileClosed); - } else { - const unsigned int size = (unsigned int)(stat->st_size); - ptr->body.resize(size); - ptr->buffer = uv_buf_init(const_cast<char *>(ptr->body.data()), size); - uv_fs_req_cleanup(req); -#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10 - uv_fs_read(req->loop, req, ptr->fd, ptr->buffer.base, ptr->buffer.len, -1, fileRead); -#else - uv_fs_read(req->loop, req, ptr->fd, &ptr->buffer, 1, 0, fileRead); -#endif - } - } -} - -void AssetRequestBaton::fileRead(uv_fs_t *req) { - AssetRequestBaton *ptr = reinterpret_cast<AssetRequestBaton *>(req->data); - assert(std::this_thread::get_id() == ptr->threadId); - - if (req->result < 0 || ptr->canceled || !ptr->request) { - // Reading failed or was canceled. We already have an open file handle - // though, which we'll have to close. - notifyError(req); - } else { - // File was successfully read. - if (ptr->request) { - ptr->request->response = util::make_unique<Response>(); - ptr->request->response->code = 200; - ptr->request->response->data = std::move(ptr->body); - ptr->request->notify(); - } - } - - uv_fs_req_cleanup(req); - uv_fs_close(req->loop, req, ptr->fd, fileClosed); -} - -void AssetRequestBaton::fileClosed(uv_fs_t *req) { - assert(std::this_thread::get_id() == (reinterpret_cast<AssetRequestBaton *>(req->data))->threadId); - - if (req->result < 0) { - // Closing the file failed. But there isn't anything we can do. - } - - cleanup(req); -} - -void AssetRequestBaton::cleanup(uv_fs_t *req) { - AssetRequestBaton *ptr = reinterpret_cast<AssetRequestBaton *>(req->data); - assert(std::this_thread::get_id() == ptr->threadId); - - if (ptr->request) { - ptr->request->ptr = nullptr; - } - - uv_fs_req_cleanup(req); - delete ptr; - ptr = nullptr; -} - - -AssetRequest::AssetRequest(const std::string &path_, uv_loop_t *loop) - : BaseRequest(path_) { - if (!path.empty() && path[0] == '/') { - // This is an absolute path. We don't allow this. Note that this is not a way to absolutely - // prevent access to resources outside the application bundle; e.g. there could be symlinks - // in the application bundle that link to outside. We don't care about these. - response = util::make_unique<Response>(); - response->code = 403; - response->message = "Path is outside the application bundle"; - notify(); - } else { - // Note: The AssetRequestBaton object is deleted in AssetRequestBaton::cleanup(). - ptr = new AssetRequestBaton(this, platform::applicationRoot() + "/" + path, loop); - } -} - -void AssetRequest::cancel() { - assert(std::this_thread::get_id() == threadId); - - if (ptr) { - ptr->cancel(); - - // When deleting a AssetRequest object with a uv_fs_* call is in progress, we are making sure - // that the callback doesn't accidentally reference this object again. - ptr->request = nullptr; - ptr = nullptr; - } - - notify(); -} - -AssetRequest::~AssetRequest() { - assert(std::this_thread::get_id() == threadId); - cancel(); - - // Note: The AssetRequestBaton object is deleted in AssetRequestBaton::cleanup(). -} - -} |