| 1 | //go:build windows |
| 2 | |
| 3 | package edge |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "fmt" |
| 8 | "net/http" |
| 9 | "syscall" |
| 10 | "unsafe" |
| 11 | |
| 12 | "github.com/wailsapp/go-webview2/internal/w32" |
| 13 | "golang.org/x/sys/windows" |
| 14 | ) |
| 15 | |
| 16 | type _ICoreWebView2WebResourceResponseVtbl struct { |
| 17 | _IUnknownVtbl |
| 18 | GetContent ComProc |
| 19 | PutContent ComProc |
| 20 | GetHeaders ComProc |
| 21 | GetStatusCode ComProc |
| 22 | PutStatusCode ComProc |
| 23 | GetReasonPhrase ComProc |
| 24 | PutReasonPhrase ComProc |
| 25 | } |
| 26 | |
| 27 | type ICoreWebView2WebResourceResponse struct { |
| 28 | vtbl *_ICoreWebView2WebResourceResponseVtbl |
| 29 | } |
| 30 | |
| 31 | func (i *ICoreWebView2WebResourceResponse) AddRef() error { |
| 32 | _, _, err := i.vtbl.AddRef.Call(uintptr(unsafe.Pointer(i))) |
| 33 | if err != nil && !errors.Is(err, windows.ERROR_SUCCESS) { |
| 34 | return err |
| 35 | } |
| 36 | |
| 37 | return nil |
| 38 | } |
| 39 | |
| 40 | func (i *ICoreWebView2WebResourceResponse) Release() error { |
| 41 | _, _, err := i.vtbl.Release.Call(uintptr(unsafe.Pointer(i))) |
| 42 | if err != nil && !errors.Is(err, windows.ERROR_SUCCESS) { |
| 43 | return err |
| 44 | } |
| 45 | |
| 46 | return nil |
| 47 | } |
| 48 | |
| 49 | // GetHeaders returns the mutable HTTP request headers. Make sure to call |
| 50 | // Release on the returned Object after finished using it. |
| 51 | func (i *ICoreWebView2WebResourceResponse) GetHeaders() (*ICoreWebView2HttpResponseHeaders, error) { |
| 52 | var headers *ICoreWebView2HttpResponseHeaders |
| 53 | hr, _, _ := i.vtbl.GetHeaders.Call( |
| 54 | uintptr(unsafe.Pointer(i)), |
| 55 | uintptr(unsafe.Pointer(&headers)), |
| 56 | ) |
| 57 | if windows.Handle(hr) != windows.S_OK { |
| 58 | return nil, syscall.Errno(hr) |
| 59 | } |
| 60 | if headers == nil { |
| 61 | |
| 62 | return nil, fmt.Errorf("unknown error") |
| 63 | } |
| 64 | return headers, nil |
| 65 | } |
| 66 | |
| 67 | func (i *ICoreWebView2WebResourceResponse) PutStatusCode(statusCode int) error { |
| 68 | hr, _, _ := i.vtbl.PutStatusCode.Call( |
| 69 | uintptr(unsafe.Pointer(i)), |
| 70 | uintptr(statusCode), |
| 71 | ) |
| 72 | |
| 73 | if windows.Handle(hr) != windows.S_OK { |
| 74 | return syscall.Errno(hr) |
| 75 | } |
| 76 | |
| 77 | // Convert string 'reasonPhrase' to *uint16 |
| 78 | _reasonPhrase, err := UTF16PtrFromString(http.StatusText(statusCode)) |
| 79 | if err != nil { |
| 80 | return err |
| 81 | } |
| 82 | |
| 83 | hr, _, _ = i.vtbl.PutReasonPhrase.Call( |
| 84 | uintptr(unsafe.Pointer(i)), |
| 85 | uintptr(unsafe.Pointer(_reasonPhrase)), |
| 86 | ) |
| 87 | if windows.Handle(hr) != windows.S_OK { |
| 88 | return syscall.Errno(hr) |
| 89 | } |
| 90 | return nil |
| 91 | } |
| 92 | |
| 93 | func (i *ICoreWebView2WebResourceResponse) PutContent(content *IStream) error { |
| 94 | hr, _, _ := i.vtbl.PutContent.Call( |
| 95 | uintptr(unsafe.Pointer(i)), |
| 96 | uintptr(unsafe.Pointer(content)), |
| 97 | ) |
| 98 | if windows.Handle(hr) != windows.S_OK { |
| 99 | return syscall.Errno(hr) |
| 100 | } |
| 101 | |
| 102 | return nil |
| 103 | } |
| 104 | |
| 105 | func (i *ICoreWebView2WebResourceResponse) PutByteContent(content []byte) error { |
| 106 | var stream *IStream |
| 107 | if len(content) > 0 { |
| 108 | // Create stream for response |
| 109 | str, err := w32.SHCreateMemStream(content) |
| 110 | if err != nil { |
| 111 | return err |
| 112 | } |
| 113 | stream = (*IStream)(unsafe.Pointer(str)) |
| 114 | defer stream.Release() |
| 115 | } |
| 116 | |
| 117 | return i.PutContent(stream) |
| 118 | } |
| 119 |