add simple xlsx file render support

main.go

@@ -16,6 +16,7 @@ import (
 	// register supported doc types
 	_ "code.gitea.io/gitea/modules/markup/markdown"
 	_ "code.gitea.io/gitea/modules/markup/orgmode"
+	_ "code.gitea.io/gitea/modules/markup/xlsx"
 
 	"github.com/urfave/cli"
 )

modules/markup/sanitizer.go

@@ -32,6 +32,8 @@ func NewSanitizer() {
 		// We only want to allow HighlightJS specific classes for code blocks
 		sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^language-\w+$`)).OnElements("code")
 
+		sanitizer.policy.AllowAttrs("class", "data-tab").OnElements("div", "a")
+
 		// Checkboxes
 		sanitizer.policy.AllowAttrs("type").Matching(regexp.MustCompile(`^checkbox$`)).OnElements("input")
 		sanitizer.policy.AllowAttrs("checked", "disabled").OnElements("input")

modules/markup/xlsx/xlsx.go

@@ -0,0 +1,84 @@
+// Copyright 20178 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package xlsx
+
+import (
+	"bytes"
+	"fmt"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/markup"
+
+	"github.com/360EntSecGroup-Skylar/excelize"
+)
+
+func init() {
+	markup.RegisterParser(Parser{})
+}
+
+// Parser implements markup.Parser for orgmode
+type Parser struct {
+}
+
+// Name implements markup.Parser
+func (Parser) Name() string {
+	return "Excel(.xlsx)"
+}
+
+// Extensions implements markup.Parser
+func (Parser) Extensions() []string {
+	return []string{".xlsx"}
+}
+
+// Render implements markup.Parser
+func (Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
+	rd, err := excelize.OpenReader(bytes.NewReader(rawBytes))
+	if err != nil {
+		return []byte{}
+	}
+	var sheetMap = rd.GetSheetMap()
+	if len(sheetMap) == 0 {
+		return []byte{}
+	}
+
+	var tmpBlock bytes.Buffer
+	tmpBlock.WriteString(`<div class="ui top attached tabular menu">`)
+	for i := 0; i < len(sheetMap); i++ {
+		var active string
+		if i == 0 {
+			active = "active"
+		}
+		tmpBlock.WriteString(fmt.Sprintf(`<a class="%s item" data-tab="%d">%s</a>`, active, i, sheetMap[i+1]))
+	}
+	tmpBlock.WriteString(`</div>`)
+
+	for i := 0; i < len(sheetMap); i++ {
+		var active string
+		if i == 0 {
+			active = "active"
+		}
+		tmpBlock.WriteString(fmt.Sprintf(`<div data-tab="%d" class="ui bottom attached `+
+			active+` tab segment"><table class="table">`, i))
+		rows, err := rd.Rows(sheetMap[i+1])
+		if err != nil {
+			log.Error(1, "Rows: %v", err)
+			tmpBlock.WriteString("</table></div>")
+			continue
+		}
+		for rows.Next() {
+			fields := rows.Columns()
+
+			tmpBlock.WriteString("<tr>")
+			for _, field := range fields {
+				tmpBlock.WriteString("<td>")
+				tmpBlock.WriteString(field)
+				tmpBlock.WriteString("</td>")
+			}
+			tmpBlock.WriteString("<tr>")
+		}
+		tmpBlock.WriteString("</table></div>")
+	}
+	return tmpBlock.Bytes()
+}

routers/repo/view.go

@@ -91,24 +91,24 @@ func renderDirectory(ctx *context.Context, treeLink string) {
 		ctx.Data["FileIsText"] = isTextFile
 		ctx.Data["FileName"] = readmeFile.Name()
 		// FIXME: what happens when README file is an image?
-		if isTextFile {
-			if readmeFile.Size() >= setting.UI.MaxDisplayFileSize {
-				// Pretend that this is a normal text file to display 'This file is too large to be shown'
-				ctx.Data["IsFileTooLarge"] = true
-				ctx.Data["IsTextFile"] = true
-				ctx.Data["FileSize"] = readmeFile.Size()
+		//if isTextFile {
+		if readmeFile.Size() >= setting.UI.MaxDisplayFileSize {
+			// Pretend that this is a normal text file to display 'This file is too large to be shown'
+			ctx.Data["IsFileTooLarge"] = true
+			ctx.Data["IsTextFile"] = true
+			ctx.Data["FileSize"] = readmeFile.Size()
+		} else {
+			d, _ := ioutil.ReadAll(dataRc)
+			buf = append(buf, d...)
+			if markup.Type(readmeFile.Name()) != "" {
+				ctx.Data["IsMarkup"] = true
+				ctx.Data["FileContent"] = string(markup.Render(readmeFile.Name(), buf, treeLink, ctx.Repo.Repository.ComposeMetas()))
 			} else {
-				d, _ := ioutil.ReadAll(dataRc)
-				buf = append(buf, d...)
-				if markup.Type(readmeFile.Name()) != "" {
-					ctx.Data["IsMarkup"] = true
-					ctx.Data["FileContent"] = string(markup.Render(readmeFile.Name(), buf, treeLink, ctx.Repo.Repository.ComposeMetas()))
-				} else {
-					ctx.Data["IsRenderedHTML"] = true
-					ctx.Data["FileContent"] = string(bytes.Replace(buf, []byte("\n"), []byte(`<br>`), -1))
-				}
+				ctx.Data["IsRenderedHTML"] = true
+				ctx.Data["FileContent"] = string(bytes.Replace(buf, []byte("\n"), []byte(`<br>`), -1))
 			}
 		}
+		//}
 	}
 
 	// Show latest commit info of repository in table header,
@@ -192,7 +192,14 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 	}
 
 	switch {
-	case isTextFile:
+	case base.IsPDFFile(buf):
+		ctx.Data["IsPDFFile"] = true
+	case base.IsVideoFile(buf):
+		ctx.Data["IsVideoFile"] = true
+	case base.IsImageFile(buf):
+		ctx.Data["IsImageFile"] = true
+	default:
+		//case isTextFile:
 		if blob.Size() >= setting.UI.MaxDisplayFileSize {
 			ctx.Data["IsFileTooLarge"] = true
 			break
@@ -209,7 +216,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 		} else if readmeExist {
 			ctx.Data["IsRenderedHTML"] = true
 			ctx.Data["FileContent"] = string(bytes.Replace(buf, []byte("\n"), []byte(`<br>`), -1))
-		} else {
+		} else if isTextFile {
 			// Building code view blocks with line number on server side.
 			var fileContent string
 			if content, err := templates.ToUTF8WithErr(buf); err != nil {
@@ -251,13 +258,6 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 		} else if !ctx.Repo.IsWriter() {
 			ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.fork_before_edit")
 		}
-
-	case base.IsPDFFile(buf):
-		ctx.Data["IsPDFFile"] = true
-	case base.IsVideoFile(buf):
-		ctx.Data["IsVideoFile"] = true
-	case base.IsImageFile(buf):
-		ctx.Data["IsImageFile"] = true
 	}
 
 	if ctx.Repo.CanEnableEditor() {