diff options
Diffstat (limited to 'src/javascript/jsc/api/html_rewriter.zig')
| -rw-r--r-- | src/javascript/jsc/api/html_rewriter.zig | 107 |
1 files changed, 79 insertions, 28 deletions
diff --git a/src/javascript/jsc/api/html_rewriter.zig b/src/javascript/jsc/api/html_rewriter.zig index e314fc18d..3ea438556 100644 --- a/src/javascript/jsc/api/html_rewriter.zig +++ b/src/javascript/jsc/api/html_rewriter.zig @@ -208,20 +208,28 @@ pub const HTMLRewriter = struct { this.context.deinit(bun.default_allocator); } + pub fn beginTransform(this: *HTMLRewriter, global: *JSGlobalObject, response: *Response) JSValue { + const new_context = this.context; + this.context = .{}; + return BufferOutputSink.init(new_context, global, response, this.builder); + } + + pub fn returnEmptyResponse(this: *HTMLRewriter, global: *JSGlobalObject, response: *Response) JSValue { + var result = bun.default_allocator.create(Response) catch unreachable; + + response.cloneInto(result, getAllocator(global.ref())); + this.finalizeWithoutDestroy(); + return JSValue.fromRef(Response.makeMaybePooled(global.ref(), result)); + } + pub fn transform(this: *HTMLRewriter, global: *JSGlobalObject, response: *Response) JSValue { var input = response.body.slice(); - if (input.len == 0) { - var result = bun.default_allocator.create(Response) catch unreachable; - - response.cloneInto(result, getAllocator(global.ref())); - this.finalizeWithoutDestroy(); - return JSValue.fromRef(Response.makeMaybePooled(global.ref(), result)); + if (input.len == 0 and !(response.body.value == .Blob and response.body.value.Blob.needsToReadFile())) { + return this.returnEmptyResponse(global, response); } - var new_context = this.context; - this.context = .{}; - return BufferOutputSink.init(new_context, global, response, this.builder); + return this.beginTransform(global, response); } pub const BufferOutputSink = struct { @@ -230,7 +238,7 @@ pub const HTMLRewriter = struct { rewriter: *LOLHTML.HTMLRewriter, context: LOLHTMLContext, response: *Response, - + input: JSC.WebCore.Blob = undefined, pub fn init(context: LOLHTMLContext, global: *JSGlobalObject, original: *Response, builder: *LOLHTML.HTMLRewriter.Builder) JSValue { var result = bun.default_allocator.create(Response) catch unreachable; var sink = bun.default_allocator.create(BufferOutputSink) catch unreachable; @@ -252,7 +260,7 @@ pub const HTMLRewriter = struct { sink.rewriter = builder.build( .UTF8, .{ - .preallocated_parsing_buffer_size = original.body.len(), + .preallocated_parsing_buffer_size = @maximum(original.body.len(), 1024), .max_allowed_memory_usage = std.math.maxInt(u32), }, false, @@ -282,19 +290,7 @@ pub const HTMLRewriter = struct { }, }, }; - { - var input = original.body.value.use(); - sink.bytes.growBy(input.sharedView().len) catch unreachable; - defer input.detach(); - sink.rewriter.write(input.sharedView()) catch { - sink.deinit(); - bun.default_allocator.destroy(result); - - return throwLOLHTMLError(global); - }; - } - // Hold off on cloning until we're actually done. result.body.init.headers = original.body.init.headers; result.body.init.method = original.body.init.method; result.body.init.status_code = original.body.init.status_code; @@ -302,17 +298,72 @@ pub const HTMLRewriter = struct { result.url = bun.default_allocator.dupe(u8, original.url) catch unreachable; result.status_text = bun.default_allocator.dupe(u8, original.status_text) catch unreachable; + var input: JSC.WebCore.Blob = original.body.value.use(); + + const is_pending = input.needsToReadFile(); + defer if (!is_pending) input.detach(); + + if (input.needsToReadFile()) { + input.doReadFileInternal(*BufferOutputSink, sink, onFinishedLoading, global); + } else if (sink.runOutputSink(input.sharedView())) |error_value| { + return error_value; + } + + // Hold off on cloning until we're actually done. + + return JSC.JSValue.fromRef( + Response.makeMaybePooled(sink.global.ref(), sink.response), + ); + } + + pub fn onFinishedLoading(sink: *BufferOutputSink, bytes: anyerror![]u8) void { + var input = sink.input; + defer input.detach(); + const data = bytes catch |err| { + if (sink.response.body.value == .Locked and sink.response.body.value.Locked.task == sink) { + sink.response.body.value = .{ .Empty = .{} }; + } + + sink.response.body.value.toError(err, sink.global); + sink.rewriter.end() catch {}; + sink.deinit(); + return; + }; + + _ = sink.runOutputSink(data, true); + } + + pub fn runOutputSink(sink: *BufferOutputSink, bytes: []const u8, is_async: bool) ?JSValue { + sink.bytes.growBy(bytes) catch unreachable; + var global = sink.global; + var response = sink.response; + sink.rewriter.write(bytes) catch { + sink.deinit(); + bun.default_allocator.destroy(sink); + + if (is_async) { + response.body.value.toErrorInstance(throwLOLHTMLError(global), global); + + return null; + } else { + return throwLOLHTMLError(global); + } + }; + sink.rewriter.end() catch { - result.finalize(); + if (!is_async) response.finalize(); sink.response = undefined; sink.deinit(); - return throwLOLHTMLError(global); + if (is_async) { + response.body.value.toErrorInstance(throwLOLHTMLError(global), global); + return null; + } else { + return throwLOLHTMLError(global); + } }; - return JSC.JSValue.fromRef( - Response.makeMaybePooled(sink.global.ref(), sink.response), - ); + return null; } pub const Sync = enum { suspended, pending, done }; 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