mirror of https://github.com/mindoc-org/mindoc.git
396 lines
12 KiB
Go
396 lines
12 KiB
Go
package models
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import (
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"time"
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"fmt"
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"strconv"
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"bytes"
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"os"
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"path/filepath"
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"strings"
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"github.com/PuerkitoBio/goquery"
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"github.com/astaxie/beego"
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"github.com/astaxie/beego/orm"
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"github.com/mindoc-org/mindoc/cache"
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"github.com/mindoc-org/mindoc/conf"
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"github.com/mindoc-org/mindoc/utils"
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)
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// Document struct.
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type Document struct {
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DocumentId int `orm:"pk;auto;unique;column(document_id)" json:"doc_id"`
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DocumentName string `orm:"column(document_name);size(500)" json:"doc_name"`
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// Identify 文档唯一标识
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Identify string `orm:"column(identify);size(100);index;null;default(null)" json:"identify"`
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BookId int `orm:"column(book_id);type(int);index" json:"book_id"`
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ParentId int `orm:"column(parent_id);type(int);index;default(0)" json:"parent_id"`
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OrderSort int `orm:"column(order_sort);default(0);type(int);index" json:"order_sort"`
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// Markdown markdown格式文档.
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Markdown string `orm:"column(markdown);type(text);null" json:"markdown"`
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// Release 发布后的Html格式内容.
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Release string `orm:"column(release);type(text);null" json:"release"`
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// Content 未发布的 Html 格式内容.
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Content string `orm:"column(content);type(text);null" json:"content"`
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CreateTime time.Time `orm:"column(create_time);type(datetime);auto_now_add" json:"create_time"`
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MemberId int `orm:"column(member_id);type(int)" json:"member_id"`
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ModifyTime time.Time `orm:"column(modify_time);type(datetime);auto_now" json:"modify_time"`
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ModifyAt int `orm:"column(modify_at);type(int)" json:"-"`
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Version int64 `orm:"column(version);type(bigint);" json:"version"`
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//是否展开子目录：0 否/1 是 /2 空间节点，单击时展开下一级
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IsOpen int `orm:"column(is_open);type(int);default(0)" json:"is_open"`
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ViewCount int `orm:"column(view_count);type(int)" json:"view_count"`
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AttachList []*Attachment `orm:"-" json:"attach"`
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}
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// 多字段唯一键
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func (item *Document) TableUnique() [][]string {
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return [][]string{
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[]string{"book_id", "identify"},
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}
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}
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// TableName 获取对应数据库表名.
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func (item *Document) TableName() string {
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return "documents"
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}
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// TableEngine 获取数据使用的引擎.
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func (item *Document) TableEngine() string {
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return "INNODB"
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}
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func (item *Document) TableNameWithPrefix() string {
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return conf.GetDatabasePrefix() + item.TableName()
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}
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func NewDocument() *Document {
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return &Document{
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Version: time.Now().Unix(),
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}
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}
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//根据文档ID查询指定文档.
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func (item *Document) Find(id int) (*Document, error) {
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if id <= 0 {
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return item, ErrInvalidParameter
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}
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o := orm.NewOrm()
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err := o.QueryTable(item.TableNameWithPrefix()).Filter("document_id", id).One(item)
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if err == orm.ErrNoRows {
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return item, ErrDataNotExist
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}
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return item, nil
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}
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//插入和更新文档.
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func (item *Document) InsertOrUpdate(cols ...string) error {
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o := orm.NewOrm()
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item.DocumentName = utils.StripTags(item.DocumentName)
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var err error
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if item.DocumentId > 0 {
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_, err = o.Update(item, cols...)
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} else {
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if item.Identify == "" {
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book := NewBook()
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identify := "docs"
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if err := o.QueryTable(book.TableNameWithPrefix()).Filter("book_id", item.BookId).One(book, "identify"); err == nil {
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identify = book.Identify
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}
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item.Identify = fmt.Sprintf("%s-%s", identify, strconv.FormatInt(time.Now().UnixNano(), 32))
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}
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if item.OrderSort == 0 {
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sort, _ := o.QueryTable(item.TableNameWithPrefix()).Filter("book_id", item.BookId).Filter("parent_id", item.ParentId).Count()
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item.OrderSort = int(sort) + 1
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}
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_, err = o.Insert(item)
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NewBook().ResetDocumentNumber(item.BookId)
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}
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if err != nil {
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return err
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}
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return nil
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}
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//根据文档识别编号和项目id获取一篇文档
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func (item *Document) FindByIdentityFirst(identify string, bookId int) (*Document, error) {
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o := orm.NewOrm()
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err := o.QueryTable(item.TableNameWithPrefix()).Filter("book_id", bookId).Filter("identify", identify).One(item)
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return item, err
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}
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//递归删除一个文档.
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func (item *Document) RecursiveDocument(docId int) error {
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o := orm.NewOrm()
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if doc, err := item.Find(docId); err == nil {
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o.Delete(doc)
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NewDocumentHistory().Clear(doc.DocumentId)
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}
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var maps []orm.Params
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_, err := o.Raw("SELECT document_id FROM " + item.TableNameWithPrefix() + " WHERE parent_id=" + strconv.Itoa(docId)).Values(&maps)
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if err != nil {
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beego.Error("RecursiveDocument => ", err)
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return err
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}
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for _, param := range maps {
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if docId, ok := param["document_id"].(string); ok {
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id, _ := strconv.Atoi(docId)
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o.QueryTable(item.TableNameWithPrefix()).Filter("document_id", id).Delete()
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item.RecursiveDocument(id)
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}
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}
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return nil
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}
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//将文档写入缓存
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func (item *Document) PutToCache() {
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go func(m Document) {
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if m.Identify == "" {
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if err := cache.Put("Document.Id."+strconv.Itoa(m.DocumentId), m, time.Second*3600); err != nil {
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beego.Info("文档缓存失败:", m.DocumentId)
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}
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} else {
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if err := cache.Put(fmt.Sprintf("Document.BookId.%d.Identify.%s", m.BookId, m.Identify), m, time.Second*3600); err != nil {
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beego.Info("文档缓存失败:", m.DocumentId)
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}
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}
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}(*item)
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}
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//清除缓存
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func (item *Document) RemoveCache() {
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go func(m Document) {
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cache.Put("Document.Id."+strconv.Itoa(m.DocumentId), m, time.Second*3600)
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if m.Identify != "" {
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cache.Put(fmt.Sprintf("Document.BookId.%d.Identify.%s", m.BookId, m.Identify), m, time.Second*3600)
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}
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}(*item)
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}
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//从缓存获取
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func (item *Document) FromCacheById(id int) (*Document, error) {
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if err := cache.Get("Document.Id."+strconv.Itoa(id), &item); err == nil && item.DocumentId > 0 {
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beego.Info("从缓存中获取文档信息成功 ->", item.DocumentId)
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return item, nil
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}
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if item.DocumentId > 0 {
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item.PutToCache()
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}
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item, err := item.Find(id)
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if err == nil {
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item.PutToCache()
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}
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return item, err
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}
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//根据文档标识从缓存中查询文档
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func (item *Document) FromCacheByIdentify(identify string, bookId int) (*Document, error) {
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key := fmt.Sprintf("Document.BookId.%d.Identify.%s", bookId, identify)
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if err := cache.Get(key, item); err == nil && item.DocumentId > 0 {
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beego.Info("从缓存中获取文档信息成功 ->", key)
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return item, nil
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}
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defer func() {
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if item.DocumentId > 0 {
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item.PutToCache()
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}
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}()
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return item.FindByIdentityFirst(identify, bookId)
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}
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//根据项目ID查询文档列表.
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func (item *Document) FindListByBookId(bookId int) (docs []*Document, err error) {
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o := orm.NewOrm()
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_, err = o.QueryTable(item.TableNameWithPrefix()).Filter("book_id", bookId).OrderBy("order_sort").All(&docs)
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return
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}
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//判断文章是否存在
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func (item *Document) IsExist(documentId int) bool {
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o := orm.NewOrm()
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return o.QueryTable(item.TableNameWithPrefix()).Filter("document_id", documentId).Exist()
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}
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//发布单篇文档
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func (item *Document) ReleaseContent() error {
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item.Release = strings.TrimSpace(item.Content)
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err := item.Processor().InsertOrUpdate("release")
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if err != nil {
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beego.Error(fmt.Sprintf("发布失败 -> %+v", item), err)
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return err
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}
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//当文档发布后，需要清除已缓存的转换文档和文档缓存
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item.RemoveCache()
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if err := os.RemoveAll(filepath.Join(conf.WorkingDirectory, "uploads", "books", strconv.Itoa(item.BookId))); err != nil {
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beego.Error("删除已缓存的文档目录失败 -> ", filepath.Join(conf.WorkingDirectory, "uploads", "books", strconv.Itoa(item.BookId)))
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return err
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}
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return nil
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}
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//处理文档的外链，附件，底部编辑信息等.
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func (item *Document) Processor() *Document {
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if item.Release != "" {
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item.Release = utils.SafetyProcessor(item.Release)
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//安全过滤，移除危险标签和属性
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if docQuery, err := goquery.NewDocumentFromReader(bytes.NewBufferString(item.Release)); err == nil {
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//处理附件
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if selector := docQuery.Find("div.attach-list").First(); selector.Size() <= 0 {
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//处理附件
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attachList, err := NewAttachment().FindListByDocumentId(item.DocumentId)
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if err == nil && len(attachList) > 0 {
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content := bytes.NewBufferString("<div class=\"attach-list\"><strong>附件</strong><ul>")
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for _, attach := range attachList {
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if strings.HasPrefix(attach.HttpPath, "/") {
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attach.HttpPath = strings.TrimSuffix(conf.BaseUrl, "/") + attach.HttpPath
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}
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li := fmt.Sprintf("<li><a href=\"%s\" target=\"_blank\" title=\"%s\">%s</a></li>", attach.HttpPath, attach.FileName, attach.FileName)
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content.WriteString(li)
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}
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content.WriteString("</ul></div>")
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if docQuery == nil {
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docQuery, err = goquery.NewDocumentFromReader(content)
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} else {
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if selector := docQuery.Find("div.wiki-bottom").First(); selector.Size() > 0 {
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selector.BeforeHtml(content.String())
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} else if selector := docQuery.Find("div.markdown-article").First(); selector.Size() > 0 {
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selector.AppendHtml(content.String())
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} else if selector := docQuery.Find("article.markdown-article-inner").First(); selector.Size() > 0 {
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selector.AppendHtml(content.String())
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}
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}
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}
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}
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//处理了文档底部信息
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if selector := docQuery.Find("div.wiki-bottom").First(); selector.Size() <= 0 && item.MemberId > 0 {
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//处理文档结尾信息
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docCreator, err := NewMember().Find(item.MemberId, "real_name", "account")
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release := "<div class=\"wiki-bottom\">"
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release += "作者："
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if err == nil && docCreator != nil {
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if docCreator.RealName != "" {
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release += docCreator.RealName
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} else {
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release += docCreator.Account
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}
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}
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release += " 创建时间：" + item.CreateTime.Local().Format("2006-01-02 15:04") + "<br>"
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if item.ModifyAt > 0 {
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docModify, err := NewMember().Find(item.ModifyAt, "real_name", "account")
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if err == nil {
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if docModify.RealName != "" {
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release += "最后编辑：" + docModify.RealName
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} else {
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release += "最后编辑：" + docModify.Account
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}
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}
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}
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release += " 更新时间：" + item.ModifyTime.Local().Format("2006-01-02 15:04") + "<br>"
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release += "</div>"
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if selector := docQuery.Find("div.markdown-article").First(); selector.Size() > 0 {
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selector.AppendHtml(release)
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} else if selector := docQuery.Find("article.markdown-article-inner").First(); selector.Size() > 0 {
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selector.First().AppendHtml(release)
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}
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}
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cdnimg := beego.AppConfig.String("cdnimg")
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docQuery.Find("img").Each(func(i int, selection *goquery.Selection) {
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if src, ok := selection.Attr("src"); ok {
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src = strings.TrimSpace(strings.ToLower(src))
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//过滤掉没有链接的图片标签
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if src == "" || strings.HasPrefix(src, "data:text/html") {
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selection.Remove()
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return
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}
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//设置图片为CDN地址
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if cdnimg != "" && strings.HasPrefix(src, "/uploads/") {
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selection.SetAttr("src", utils.JoinURI(cdnimg, src))
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}
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}
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selection.RemoveAttr("onerror").RemoveAttr("onload")
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})
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//过滤A标签的非法连接
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docQuery.Find("a").Each(func(i int, selection *goquery.Selection) {
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if val, exists := selection.Attr("href"); exists {
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if val == "" {
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selection.SetAttr("href", "#")
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return
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}
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val = strings.Replace(strings.ToLower(val), " ", "",-1)
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//移除危险脚本链接
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if strings.HasPrefix(val, "data:text/html") ||
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strings.HasPrefix(val, "vbscript:") ||
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strings.HasPrefix(val, "javascript:") ||
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strings.HasPrefix(val, "javascript:") {
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selection.SetAttr("href", "#")
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}
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}
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//移除所有 onerror 属性
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selection.RemoveAttr("onerror").RemoveAttr("onload").RemoveAttr("onclick")
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})
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docQuery.Find("script").Remove()
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docQuery.Find("link").Remove()
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docQuery.Find("vbscript").Remove()
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if html, err := docQuery.Html(); err == nil {
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item.Release = strings.TrimSuffix(strings.TrimPrefix(strings.TrimSpace(html), "<html><head></head><body>"), "</body></html>")
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}
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}
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}
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return item
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}
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// 增加阅读次数
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func (item *Document) IncrViewCount(id int) {
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o := orm.NewOrm()
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o.QueryTable(item.TableNameWithPrefix()).Filter("document_id", id).Update(orm.Params{
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"view_count": orm.ColValue(orm.ColAdd, 1),
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})
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}
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