summaryrefslogtreecommitdiff
path: root/platform/default/asset_request_libuv.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'platform/default/asset_request_libuv.cpp')
-rw-r--r--platform/default/asset_request_libuv.cpp223
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().
-}
-
-}