mindoc/models/book_result.go

363 lines
10 KiB
Go

package models
import (
"bytes"
"time"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
"encoding/base64"
"github.com/PuerkitoBio/goquery"
"github.com/astaxie/beego"
"github.com/astaxie/beego/logs"
"github.com/astaxie/beego/orm"
"github.com/lifei6671/mindoc/conf"
"github.com/lifei6671/mindoc/converter"
"github.com/lifei6671/mindoc/utils"
"gopkg.in/russross/blackfriday.v2"
)
type BookResult struct {
BookId int `json:"book_id"`
BookName string `json:"book_name"`
Identify string `json:"identify"`
OrderIndex int `json:"order_index"`
Description string `json:"description"`
Publisher string `json:"publisher"`
PrivatelyOwned int `json:"privately_owned"`
PrivateToken string `json:"private_token"`
DocCount int `json:"doc_count"`
CommentStatus string `json:"comment_status"`
CommentCount int `json:"comment_count"`
CreateTime time.Time `json:"create_time"`
CreateName string `json:"create_name"`
RealName string `json:"real_name"`
ModifyTime time.Time `json:"modify_time"`
Cover string `json:"cover"`
Theme string `json:"theme"`
Label string `json:"label"`
MemberId int `json:"member_id"`
Editor string `json:"editor"`
AutoRelease bool `json:"auto_release"`
HistoryCount int `json:"history_count"`
RelationshipId int `json:"relationship_id"`
RoleId int `json:"role_id"`
RoleName string `json:"role_name"`
Status int
LastModifyText string `json:"last_modify_text"`
IsDisplayComment bool `json:"is_display_comment"`
IsDownload bool `json:"is_download"`
}
func NewBookResult() *BookResult {
return &BookResult{}
}
// 根据项目标识查询项目以及指定用户权限的信息.
func (m *BookResult) FindByIdentify(identify string, member_id int) (*BookResult, error) {
if identify == "" || member_id <= 0 {
return m, ErrInvalidParameter
}
o := orm.NewOrm()
book := NewBook()
err := o.QueryTable(book.TableNameWithPrefix()).Filter("identify", identify).One(book)
if err != nil {
return m, err
}
relationship := NewRelationship()
err = o.QueryTable(relationship.TableNameWithPrefix()).Filter("book_id", book.BookId).Filter("member_id", member_id).One(relationship)
if err != nil {
return m, err
}
var relationship2 Relationship
err = o.QueryTable(relationship.TableNameWithPrefix()).Filter("book_id", book.BookId).Filter("role_id", 0).One(&relationship2)
if err != nil {
logs.Error("根据项目标识查询项目以及指定用户权限的信息 => ", err)
return m, ErrPermissionDenied
}
member, err := NewMember().Find(relationship2.MemberId)
if err != nil {
return m, err
}
m = NewBookResult().ToBookResult(*book)
m.CreateName = member.Account
if member.RealName != "" {
m.RealName = member.RealName
}
m.MemberId = relationship.MemberId
m.RoleId = relationship.RoleId
m.RelationshipId = relationship.RelationshipId
if m.RoleId == conf.BookFounder {
m.RoleName = "创始人"
} else if m.RoleId == conf.BookAdmin {
m.RoleName = "管理员"
} else if m.RoleId == conf.BookEditor {
m.RoleName = "编辑者"
} else if m.RoleId == conf.BookObserver {
m.RoleName = "观察者"
}
doc := NewDocument()
err = o.QueryTable(doc.TableNameWithPrefix()).Filter("book_id", book.BookId).OrderBy("modify_time").One(doc)
if err == nil {
member2 := NewMember()
member2.Find(doc.ModifyAt)
m.LastModifyText = member2.Account + " 于 " + doc.ModifyTime.Format("2006-01-02 15:04:05")
}
return m, nil
}
func (m *BookResult) FindToPager(pageIndex, pageSize int) (books []*BookResult, totalCount int, err error) {
o := orm.NewOrm()
count, err := o.QueryTable(NewBook().TableNameWithPrefix()).Count()
if err != nil {
return
}
totalCount = int(count)
sql := `SELECT
book.*,rel.relationship_id,rel.role_id,m.account AS create_name,m.real_name
FROM md_books AS book
LEFT JOIN md_relationship AS rel ON rel.book_id = book.book_id AND rel.role_id = 0
LEFT JOIN md_members AS m ON rel.member_id = m.member_id
ORDER BY book.order_index DESC ,book.book_id DESC LIMIT ?,?`
offset := (pageIndex - 1) * pageSize
_, err = o.Raw(sql, offset, pageSize).QueryRows(&books)
return
}
//实体转换
func (m *BookResult) ToBookResult(book Book) *BookResult {
m.BookId = book.BookId
m.BookName = book.BookName
m.Identify = book.Identify
m.OrderIndex = book.OrderIndex
m.Description = strings.Replace(book.Description, "\r\n", "<br/>", -1)
m.PrivatelyOwned = book.PrivatelyOwned
m.PrivateToken = book.PrivateToken
m.DocCount = book.DocCount
m.CommentStatus = book.CommentStatus
m.CommentCount = book.CommentCount
m.CreateTime = book.CreateTime
m.ModifyTime = book.ModifyTime
m.Cover = book.Cover
m.Label = book.Label
m.Status = book.Status
m.Editor = book.Editor
m.Theme = book.Theme
m.AutoRelease = book.AutoRelease == 1
m.Publisher = book.Publisher
m.HistoryCount = book.HistoryCount
m.IsDownload = book.IsDownload == 0
if book.Theme == "" {
m.Theme = "default"
}
if book.Editor == "" {
m.Editor = "markdown"
}
return m
}
func (m *BookResult) Converter(sessionId string) (ConvertBookResult, error) {
convertBookResult := ConvertBookResult{}
outputPath := filepath.Join(conf.WorkingDirectory,"uploads","books", strconv.Itoa(m.BookId))
viewPath := beego.BConfig.WebConfig.ViewsPath
pdfpath := filepath.Join(outputPath, "book.pdf")
epubpath := filepath.Join(outputPath, "book.epub")
mobipath := filepath.Join(outputPath, "book.mobi")
docxpath := filepath.Join(outputPath, "book.docx")
//先将转换的文件储存到临时目录
tempOutputPath := filepath.Join(os.TempDir(),sessionId) //filepath.Abs(filepath.Join("cache", sessionId))
os.MkdirAll(outputPath, 0766)
os.MkdirAll(tempOutputPath, 0766)
defer func(p string) {
os.RemoveAll(p)
}(tempOutputPath)
if utils.FileExists(pdfpath) && utils.FileExists(epubpath) && utils.FileExists(mobipath) && utils.FileExists(docxpath) {
convertBookResult.EpubPath = epubpath
convertBookResult.MobiPath = mobipath
convertBookResult.PDFPath = pdfpath
convertBookResult.WordPath = docxpath
return convertBookResult, nil
}
docs, err := NewDocument().FindListByBookId(m.BookId)
if err != nil {
return convertBookResult, err
}
tocList := make([]converter.Toc, 0)
for _, item := range docs {
if item.ParentId == 0 {
toc := converter.Toc{
Id: item.DocumentId,
Link: strconv.Itoa(item.DocumentId) + ".html",
Pid: item.ParentId,
Title: item.DocumentName,
}
tocList = append(tocList, toc)
}
}
for _, item := range docs {
if item.ParentId != 0 {
toc := converter.Toc{
Id: item.DocumentId,
Link: strconv.Itoa(item.DocumentId) + ".html",
Pid: item.ParentId,
Title: item.DocumentName,
}
tocList = append(tocList, toc)
}
}
ebookConfig := converter.Config{
Charset: "utf-8",
Cover: m.Cover,
Timestamp: time.Now().Format("2006-01-02 15:04:05"),
Description: string(blackfriday.Run([]byte(m.Description))),
Footer: "<p style='color:#8E8E8E;font-size:12px;'>本文档使用 <a href='https://www.iminho.me' style='text-decoration:none;color:#1abc9c;font-weight:bold;'>MinDoc</a> 构建 <span style='float:right'>- _PAGENUM_ -</span></p>",
Header: "<p style='color:#8E8E8E;font-size:12px;'>_SECTION_</p>",
Identifier: "",
Language: "zh-CN",
Creator: m.CreateName,
Publisher: m.Publisher,
Contributor: m.Publisher,
Title: m.BookName,
Format: []string{"epub", "mobi", "pdf", "docx"},
FontSize: "14",
PaperSize: "a4",
MarginLeft: "72",
MarginRight: "72",
MarginTop: "72",
MarginBottom: "72",
Toc: tocList,
More: []string{},
}
if m.Publisher != "" {
ebookConfig.Footer = "<p style='color:#8E8E8E;font-size:12px;'>本文档由 <span style='text-decoration:none;color:#1abc9c;font-weight:bold;'>"+ m.Publisher +"</span> 生成<span style='float:right'>- _PAGENUM_ -</span></p>"
}
if m.RealName != "" {
ebookConfig.Creator = m.RealName
}
if tempOutputPath, err = filepath.Abs(tempOutputPath); err != nil {
beego.Error("导出目录配置错误:" + err.Error())
return convertBookResult, err
}
for _, item := range docs {
name := strconv.Itoa(item.DocumentId)
fpath := filepath.Join(tempOutputPath, name+".html")
f, err := os.OpenFile(fpath, os.O_CREATE|os.O_RDWR, 0777)
if err != nil {
return convertBookResult, err
}
var buf bytes.Buffer
if err := beego.ExecuteViewPathTemplate(&buf, "document/export.tpl", viewPath, map[string]interface{}{"Model": m, "Lists": item, "BaseUrl": conf.BaseUrl}); err != nil {
return convertBookResult, err
}
html := buf.String()
if err != nil {
f.Close()
return convertBookResult, err
}
bufio := bytes.NewReader(buf.Bytes())
doc, err := goquery.NewDocumentFromReader(bufio)
doc.Find("img").Each(func(i int, contentSelection *goquery.Selection) {
if src, ok := contentSelection.Attr("src"); ok && strings.HasPrefix(src, "/") {
//contentSelection.SetAttr("src", baseUrl + src)
spath := filepath.Join(conf.WorkingDirectory, src)
if ff, e := ioutil.ReadFile(spath); e == nil {
encodeString := base64.StdEncoding.EncodeToString(ff)
src = "data:image/" + filepath.Ext(src) + ";base64," + encodeString
contentSelection.SetAttr("src", src)
}
}
})
html, err = doc.Html()
if err != nil {
f.Close()
return convertBookResult, err
}
// html = strings.Replace(html, "<img src=\"/uploads", "<img src=\"" + c.BaseUrl() + "/uploads", -1)
f.WriteString(html)
f.Close()
}
eBookConverter := &converter.Converter{
BasePath: tempOutputPath,
Config: ebookConfig,
Debug: true,
}
if err := eBookConverter.Convert(); err != nil {
beego.Error("转换文件错误:" + m.BookName + " => " + err.Error())
return convertBookResult, err
}
beego.Info("文档转换完成:" + m.BookName)
utils.CopyFile(mobipath, filepath.Join(tempOutputPath, "output", "book.mobi"))
utils.CopyFile(pdfpath, filepath.Join(tempOutputPath, "output", "book.pdf"))
utils.CopyFile(epubpath, filepath.Join(tempOutputPath, "output", "book.epub"))
utils.CopyFile(docxpath, filepath.Join(tempOutputPath, "output", "book.docx"))
convertBookResult.MobiPath = mobipath
convertBookResult.PDFPath = pdfpath
convertBookResult.EpubPath = epubpath
convertBookResult.WordPath = docxpath
return convertBookResult, nil
}