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excelize-formula
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Add TIF, TIFF format images and more detailed error information when open the encrypted file

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formula
xuri 6 years ago
parent 9f8623047d
commit 54def7eaad
No known key found for this signature in database
GPG Key ID: BA5E5BB1C948EDF7
7 changed files with 95 additions and 10 deletions
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12
excelize.go
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@ -14,6 +14,7 @@ import (
"archive/zip"
"bytes"
"encoding/xml"
"errors"
"fmt"
"io"
"io/ioutil"
@ -69,6 +70,17 @@ func OpenReader(r io.Reader) (*File, error) {
zr, err := zip.NewReader(bytes.NewReader(b), int64(len(b)))
if err != nil {
identifier := []byte{
// checking protect workbook by [MS-OFFCRYPTO] - v20181211 3.1 FeatureIdentifier
0x3c, 0x00, 0x00, 0x00, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00,
0x6f, 0x00, 0x66, 0x00, 0x74, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x74, 0x00,
0x61, 0x00, 0x69, 0x00, 0x6e, 0x00, 0x65, 0x00, 0x72, 0x00, 0x2e, 0x00, 0x44, 0x00, 0x61, 0x00,
0x74, 0x00, 0x61, 0x00, 0x53, 0x00, 0x70, 0x00, 0x61, 0x00, 0x63, 0x00, 0x65, 0x00, 0x73, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
}
if bytes.Contains(b, identifier) {
return nil, errors.New("not support encrypted file currently")
}
return nil, err
}

9
excelize_test.go
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@ -1,6 +1,7 @@
package excelize
import (
"bytes"
"fmt"
"image/color"
_ "image/gif"
@ -185,6 +186,14 @@ func TestSaveAsWrongPath(t *testing.T) {
func TestOpenReader(t *testing.T) {
_, err := OpenReader(strings.NewReader(""))
assert.EqualError(t, err, "zip: not a valid zip file")
_, err = OpenReader(bytes.NewReader([]byte{
0x3c, 0x00, 0x00, 0x00, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00,
0x6f, 0x00, 0x66, 0x00, 0x74, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x74, 0x00,
0x61, 0x00, 0x69, 0x00, 0x6e, 0x00, 0x65, 0x00, 0x72, 0x00, 0x2e, 0x00, 0x44, 0x00, 0x61, 0x00,
0x74, 0x00, 0x61, 0x00, 0x53, 0x00, 0x70, 0x00, 0x61, 0x00, 0x63, 0x00, 0x65, 0x00, 0x73, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
}))
assert.EqualError(t, err, "not support encrypted file currently")
}
func TestBrokenFile(t *testing.T) {

2
picture.go
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@ -385,7 +385,7 @@ func (f *File) addMedia(file []byte, ext string) string {
// setContentTypePartImageExtensions provides a function to set the content
// type for relationship parts and the Main Document part.
func (f *File) setContentTypePartImageExtensions() {
var imageTypes = map[string]bool{"jpeg": false, "png": false, "gif": false}
var imageTypes = map[string]bool{"jpeg": false, "png": false, "gif": false, "tiff": false}
content := f.contentTypesReader()
for _, v := range content.Defaults {
_, ok := imageTypes[v.Extension]

25
picture_test.go
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@ -1,8 +1,13 @@
package excelize
import (
"fmt"
_ "image/gif"
_ "image/jpeg"
_ "image/png"
_ "golang.org/x/image/tiff"
"fmt"
"io/ioutil"
"os"
"path/filepath"
@ -25,37 +30,41 @@ func BenchmarkAddPictureFromBytes(b *testing.B) {
}
func TestAddPicture(t *testing.T) {
xlsx, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
if !assert.NoError(t, err) {
t.FailNow()
}
// Test add picture to worksheet with offset and location hyperlink.
err = xlsx.AddPicture("Sheet2", "I9", filepath.Join("test", "images", "excel.jpg"),
err = f.AddPicture("Sheet2", "I9", filepath.Join("test", "images", "excel.jpg"),
`{"x_offset": 140, "y_offset": 120, "hyperlink": "#Sheet2!D8", "hyperlink_type": "Location"}`)
if !assert.NoError(t, err) {
t.FailNow()
}
// Test add picture to worksheet with offset, external hyperlink and positioning.
err = xlsx.AddPicture("Sheet1", "F21", filepath.Join("test", "images", "excel.jpg"),
err = f.AddPicture("Sheet1", "F21", filepath.Join("test", "images", "excel.jpg"),
`{"x_offset": 10, "y_offset": 10, "hyperlink": "https://github.com/360EntSecGroup-Skylar/excelize", "hyperlink_type": "External", "positioning": "oneCell"}`)
if !assert.NoError(t, err) {
t.FailNow()
}
file, err := ioutil.ReadFile(filepath.Join("test", "images", "excel.jpg"))
file, err := ioutil.ReadFile(filepath.Join("test", "images", "excel.png"))
if !assert.NoError(t, err) {
t.FailNow()
}
// Test add picture to worksheet from bytes.
assert.NoError(t, xlsx.AddPictureFromBytes("Sheet1", "Q1", "", "Excel Logo", ".jpg", file))
assert.NoError(t, f.AddPictureFromBytes("Sheet1", "Q1", "", "Excel Logo", ".png", file))
// Test add picture to worksheet from bytes with illegal cell coordinates.
assert.EqualError(t, xlsx.AddPictureFromBytes("Sheet1", "A", "", "Excel Logo", ".jpg", file), `cannot convert cell "A" to coordinates: invalid cell name "A"`)
assert.EqualError(t, f.AddPictureFromBytes("Sheet1", "A", "", "Excel Logo", ".png", file), `cannot convert cell "A" to coordinates: invalid cell name "A"`)
assert.NoError(t, f.AddPicture("Sheet1", "Q8", filepath.Join("test", "images", "excel.gif"), ""))
assert.NoError(t, f.AddPicture("Sheet1", "Q15", filepath.Join("test", "images", "excel.jpg"), ""))
assert.NoError(t, f.AddPicture("Sheet1", "Q22", filepath.Join("test", "images", "excel.tif"), ""))
// Test write file to given path.
assert.NoError(t, xlsx.SaveAs(filepath.Join("test", "TestAddPicture.xlsx")))
assert.NoError(t, f.SaveAs(filepath.Join("test", "TestAddPicture.xlsx")))
}
func TestAddPictureErrors(t *testing.T) {

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test/images/excel.tif
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Binary file not shown.

55
xmlApp.go
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@ -0,0 +1,55 @@
// Copyright 2016 - 2019 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to
// and read from XLSX files. Support reads and writes XLSX file generated by
// Microsoft Excel™ 2007 and later. Support save file without losing original
// charts of XLSX. This library needs Go version 1.8 or later.
package excelize
import "encoding/xml"
type xlsxProperties struct {
XMLName xml.Name `xml:"http://schemas.openxmlformats.org/officeDocument/2006/extended-properties Properties"`
Template string
Manager string
Company string
Pages int
Words int
Characters int
PresentationFormat string
Lines int
Paragraphs int
Slides int
Notes int
TotalTime int
HiddenSlides int
MMClips int
ScaleCrop bool
HeadingPairs *xlsxVectorVariant
TitlesOfParts *xlsxVectorLpstr
LinksUpToDate bool
CharactersWithSpaces int
SharedDoc bool
HyperlinkBase string
HLinks *xlsxVectorVariant
HyperlinksChanged bool
DigSig *xlsxDigSig
Application string
AppVersion string
DocSecurity int
}
type xlsxVectorVariant struct {
Content string `xml:",innerxml"`
}
type xlsxVectorLpstr struct {
Content string `xml:",innerxml"`
}
type xlsxDigSig struct {
Content string `xml:",innerxml"`
}

2
xmlDrawing.go
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@ -42,7 +42,7 @@ const (
NameSpaceDublinCoreMetadataIntiative = "http://purl.org/dc/dcmitype/"
)
var supportImageTypes = map[string]string{".gif": ".gif", ".jpg": ".jpeg", ".jpeg": ".jpeg", ".png": ".png"}
var supportImageTypes = map[string]string{".gif": ".gif", ".jpg": ".jpeg", ".jpeg": ".jpeg", ".png": ".png", ".tif": ".tiff", ".tiff": ".tiff"}
// xlsxCNvPr directly maps the cNvPr (Non-Visual Drawing Properties). This
// element specifies non-visual canvas properties. This allows for additional

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