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package controllers
import (
"bytes"
"fmt"
"net/http"
"strconv"
"github.com/TruthHun/BookStack/models/store"
"github.com/TruthHun/BookStack/utils"
"encoding/json"
"io"
"strings"
"compress/gzip"
"io/ioutil"
"path/filepath"
"time"
"errors"
"github.com/PuerkitoBio/goquery"
"github.com/TruthHun/BookStack/conf"
"github.com/TruthHun/BookStack/models"
"github.com/astaxie/beego"
"github.com/astaxie/beego/orm"
)
type BaseController struct {
beego.Controller
Member *models.Member
Option map[string]string
EnableAnonymous bool
EnableDocumentHistory int
Sitename string
OssDomain string
}
type CookieRemember struct {
MemberId int
Account string
Time time.Time
}
// Prepare 预处理.
func (this *BaseController) Prepare() {
this.Member = models.NewMember() //初始化
this.EnableAnonymous = false
this.EnableDocumentHistory = 0
this.OssDomain = strings.TrimRight(beego.AppConfig.String("oss::Domain"), "/ ")
this.Data["OssDomain"] = this.OssDomain
this.Data["StaticDomain"] = strings.Trim(beego.AppConfig.DefaultString("static_domain", ""), "/")
//从session中获取用户信息
if member, ok := this.GetSession(conf.LoginSessionName).(models.Member); ok && member.MemberId > 0 {
this.Member = &member
} else {
//如果Cookie中存在登录信息，从cookie中获取用户信息
if cookie, ok := this.GetSecureCookie(conf.GetAppKey(), "login"); ok {
var remember CookieRemember
err := utils.Decode(cookie, &remember)
if err == nil {
member, err := models.NewMember().Find(remember.MemberId)
if err == nil {
this.SetMember(*member)
this.Member = member
}
}
}
}
if this.Member.RoleName == "" {
this.Member.ResolveRoleName()
}
this.Data["Member"] = this.Member
this.Data["BaseUrl"] = this.Ctx.Input.Scheme() + "://" + this.Ctx.Request.Host
if options, err := models.NewOption().All(); err == nil {
this.Option = make(map[string]string, len(options))
for _, item := range options {
if item.OptionName == "SITE_NAME" {
this.Sitename = item.OptionValue
}
this.Data[item.OptionName] = item.OptionValue
this.Option[item.OptionName] = item.OptionValue
if strings.EqualFold(item.OptionName, "ENABLE_ANONYMOUS") && item.OptionValue == "true" {
this.EnableAnonymous = true
}
if verNum, _ := strconv.Atoi(item.OptionValue); strings.EqualFold(item.OptionName, "ENABLE_DOCUMENT_HISTORY") && verNum > 0 {
this.EnableDocumentHistory = verNum
}
}
}
this.Data["SiteName"] = this.Sitename
this.Data["Friendlinks"] = new(models.FriendLink).GetList(false)
}
// SetMember 获取或设置当前登录用户信息,如果 MemberId 小于 0 则标识删除 Session
func (this *BaseController) SetMember(member models.Member) {
if member.MemberId <= 0 {
this.DelSession(conf.LoginSessionName)
this.DelSession("uid")
this.DestroySession()
} else {
this.SetSession(conf.LoginSessionName, member)
this.SetSession("uid", member.MemberId)
}
}
// JsonResult 响应 json 结果
func (this *BaseController) JsonResult(errCode int, errMsg string, data ...interface{}) {
jsonData := make(map[string]interface{}, 3)
jsonData["errcode"] = errCode
jsonData["message"] = errMsg
if len(data) > 0 && data[0] != nil {
jsonData["data"] = data[0]
}
returnJSON, err := json.Marshal(jsonData)
if err != nil {
beego.Error(err)
}
this.Ctx.ResponseWriter.Header().Set("Content-Type", "application/json; charset=utf-8")
//this.Ctx.ResponseWriter.Header().Set("Cache-Control", "no-cache, no-store")//解决回退出现json的问题
//使用gzip原始，json数据会只有原本数据的10分之一左右
if strings.Contains(strings.ToLower(this.Ctx.Request.Header.Get("Accept-Encoding")), "gzip") {
this.Ctx.ResponseWriter.Header().Set("Content-Encoding", "gzip")
//gzip压缩
w := gzip.NewWriter(this.Ctx.ResponseWriter)
defer w.Close()
w.Write(returnJSON)
w.Flush()
} else {
io.WriteString(this.Ctx.ResponseWriter, string(returnJSON))
}
this.StopRun()
}
// ExecuteViewPathTemplate 执行指定的模板并返回执行结果.
func (this *BaseController) ExecuteViewPathTemplate(tplName string, data interface{}) (string, error) {
var buf bytes.Buffer
viewPath := this.ViewPath
if this.ViewPath == "" {
viewPath = beego.BConfig.WebConfig.ViewsPath
}
if err := beego.ExecuteViewPathTemplate(&buf, tplName, viewPath, data); err != nil {
return "", err
}
return buf.String(), nil
}
func (this *BaseController) BaseUrl() string {
host := beego.AppConfig.String("sitemap_host")
if len(host) > 0 {
if strings.HasPrefix(host, "http://") || strings.HasPrefix(host, "https://") {
return host
}
return this.Ctx.Input.Scheme() + "://" + host
}
return this.Ctx.Input.Scheme() + "://" + this.Ctx.Request.Host
}
//显示错误信息页面.
func (this *BaseController) ShowErrorPage(errCode int, errMsg string) {
this.TplName = "errors/error.html"
this.Data["ErrorMessage"] = errMsg
this.Data["ErrorCode"] = errCode
this.StopRun()
}
//根据页面获取seo
//@param page 页面标识
//@param defSeo 默认的seo的map，必须有title、keywords和description字段
func (this *BaseController) GetSeoByPage(page string, defSeo map[string]string) {
var seo models.Seo
orm.NewOrm().QueryTable(models.TableSeo).Filter("Page", page).One(&seo)
defSeo["sitename"] = this.Sitename
if seo.Id > 0 {
for k, v := range defSeo {
seo.Title = strings.Replace(seo.Title, fmt.Sprintf("{%v}", k), v, -1)
seo.Keywords = strings.Replace(seo.Keywords, fmt.Sprintf("{%v}", k), v, -1)
seo.Description = strings.Replace(seo.Description, fmt.Sprintf("{%v}", k), v, -1)
}
}
this.Data["SeoTitle"] = seo.Title
this.Data["SeoKeywords"] = seo.Keywords
this.Data["SeoDescription"] = seo.Description
}
//站点地图
func (this *BaseController) Sitemap() {
this.Data["SeoTitle"] = "站点地图 - " + this.Sitename
page, _ := this.GetInt("page")
listRows := 100
totalCount, docs := models.SitemapData(page, listRows)
if totalCount > 0 {
html := utils.GetPagerHtml(this.Ctx.Request.RequestURI, page, listRows, int(totalCount))
this.Data["PageHtml"] = html
} else {
this.Data["PageHtml"] = ""
}
//this.JsonResult(0, "aaa", docs)
this.Data["Docs"] = docs
this.TplName = "widgets/sitemap.html"
}
//静态文件，这个加在路由的最后
func (this *BaseController) StaticFile() {
splat := this.GetString(":splat")
ext := filepath.Ext(splat)
if strings.Contains(beego.AppConfig.String("StaticExt"), strings.ToLower(ext)) {
if b, err := ioutil.ReadFile(splat); err == nil {
this.Ctx.ResponseWriter.Write(b)
return
}
}
this.Abort("404")
}
func (this *BaseController) loginByMemberId(memberId int) (err error) {
member, err := models.NewMember().Find(memberId)
if member.MemberId == 0 {
return errors.New("用户不存在")
}
//如果没有数据
if err != nil {
return err
}
member.LastLoginTime = time.Now()
member.Update()
this.SetMember(*member)
var remember CookieRemember
remember.MemberId = member.MemberId
remember.Account = member.Account
remember.Time = time.Now()
v, err := utils.Encode(remember)
if err == nil {
this.SetSecureCookie(conf.GetAppKey(), "login", v, 24*3600*365)
}
return err
}
//在markdown头部加上<bookstack></bookstack>或者<bookstack/>，即解析markdown中的ul>li>a链接作为目录
func (this *BaseController) sortBySummary(bookIdentify, htmlStr string, bookId int) {
debug := beego.AppConfig.String("runmod") != "prod"
o := orm.NewOrm()
qs := o.QueryTable("md_documents").Filter("book_id", bookId)
doc, err := goquery.NewDocumentFromReader(strings.NewReader(htmlStr))
if err != nil {
beego.Error(err)
}
idx := 0
if debug {
beego.Info("根据summary文件进行排序")
}
//查找ul>li下的所有a标签，并提取text和href，查询数据库，如果标识不存在，则把这些新的数据录入数据库
var hrefs = make(map[string]string)
var hrefSlice []interface{}
var docs []models.Document
doc.Find("li>a").Each(func(i int, selection *goquery.Selection) {
if href, ok := selection.Attr("href"); ok && strings.HasPrefix(href, "$") {
href = strings.TrimLeft(strings.Replace(href, "/", "-", -1), "$")
hrefs[href] = selection.Text()
hrefSlice = append(hrefSlice, href)
}
})
if debug {
beego.Info(hrefs)
}
if len(hrefSlice) > 0 {
if _, err := qs.Filter("identify__in", hrefSlice...).Limit(len(hrefSlice)).All(&docs, "identify"); err != nil {
beego.Error(err.Error())
} else {
for _, doc := range docs {
//删除存在的标识
delete(hrefs, doc.Identify)
}
}
}
if len(hrefs) > 0 { //存在未创建的文档，先创建
ModelStore := new(models.DocumentStore)
for identify, docName := range hrefs {
doc := models.Document{
BookId: bookId,
Identify: identify,
DocumentName: docName,
CreateTime: time.Now(),
ModifyTime: time.Now(),
}
if docId, err := doc.InsertOrUpdate(); err == nil {
ModelStore.InsertOrUpdate(models.DocumentStore{
DocumentId: int(docId),
Markdown: "[TOC]\n\r\n\r",
})
}
}
}
doc.Find("a").Each(func(i int, selection *goquery.Selection) {
docName := selection.Text()
pid := 0
if docId, exist := selection.Attr("data-pid"); exist {
did, _ := strconv.Atoi(docId)
eleParent := selection.Parent().Parent().Parent()
if eleParent.Is("li") {
fst := eleParent.Find("a").First()
pidstr, _ := fst.Attr("data-pid")
//如果这里的pid为0，表示数据库还没存在这个标识，需要创建
pid, _ = strconv.Atoi(pidstr)
}
if did > 0 {
qs.Filter("document_id", did).Update(orm.Params{
"parent_id": pid, "document_name": docName,
"order_sort": idx, "modify_time": time.Now(),
})
}
} else if href, ok := selection.Attr("href"); ok && strings.HasPrefix(href, "$") {
identify := strings.TrimPrefix(href, "$") //文档标识
eleParent := selection.Parent().Parent().Parent()
if eleParent.Is("li") {
if parentHref, ok := eleParent.Find("a").First().Attr("href"); ok {
var one models.Document
qs.Filter("identify", strings.Split(strings.TrimPrefix(parentHref, "$"), "#")[0]).One(&one, "document_id")
pid = one.DocumentId
}
}
if _, err := qs.Filter("identify", identify).Update(orm.Params{
"parent_id": pid, "document_name": docName,
"order_sort": idx, "modify_time": time.Now(),
}); err != nil {
beego.Error(err)
}
}
idx++
})
if len(hrefs) > 0 { //如果有新创建的文档，则再调用一遍，用于处理排序
this.replaceLinks(bookIdentify, htmlStr, true)
}
}
//排序
type Sort struct {
Id int
Pid int
SortOrder int
Identify string
}
//替换链接
//如果是summary，则根据这个进行排序调整
func (this *BaseController) replaceLinks(bookIdentify string, docHtml string, isSummary ...bool) string {
var (
book models.Book
docs []models.Document
o = orm.NewOrm()
)
o.QueryTable("md_books").Filter("identify", bookIdentify).One(&book, "book_id")
if book.BookId > 0 {
o.QueryTable("md_documents").Filter("book_id", book.BookId).Limit(5000).All(&docs, "identify", "document_id")
if len(docs) > 0 {
Links := make(map[string]string)
for _, doc := range docs {
idStr := strconv.Itoa(doc.DocumentId)
if len(doc.Identify) > 0 {
Links["$"+strings.ToLower(doc.Identify)] = beego.URLFor("DocumentController.Read", ":key", bookIdentify, ":id", doc.Identify) + "||" + idStr
}
if doc.DocumentId > 0 {
Links["$"+strconv.Itoa(doc.DocumentId)] = beego.URLFor("DocumentController.Read", ":key", bookIdentify, ":id", doc.DocumentId) + "||" + idStr
}
}
//替换文档内容中的链接
if gq, err := goquery.NewDocumentFromReader(strings.NewReader(docHtml)); err == nil {
gq.Find("a").Each(func(i int, selection *goquery.Selection) {
if href, ok := selection.Attr("href"); ok && strings.HasPrefix(href, "$") {
if slice := strings.Split(href, "#"); len(slice) > 1 {
if newHref, ok := Links[strings.ToLower(slice[0])]; ok {
arr := strings.Split(newHref, "||") //整理的arr数组长度，肯定为2，所以不做数组长度判断
selection.SetAttr("href", arr[0]+"#"+strings.Join(slice[1:], "#"))
selection.SetAttr("data-pid", arr[1])
}
} else {
if newHref, ok := Links[strings.ToLower(href)]; ok {
arr := strings.Split(newHref, "||") //整理的arr数组长度，肯定为2，所以不做数组长度判断
selection.SetAttr("href", arr[0])
selection.SetAttr("data-pid", arr[1])
}
}
}
})
if newHtml, err := gq.Find("body").Html(); err == nil {
docHtml = newHtml
if len(isSummary) > 0 && isSummary[0] == true { //更新排序
this.sortBySummary(bookIdentify, docHtml, book.BookId) //更新排序
}
}
} else {
beego.Error(err.Error())
}
}
}
return docHtml
}
//内容采集
func (this *BaseController) Crawl() {
if this.Member.MemberId > 0 {
if val, ok := this.GetSession("crawl").(string); ok && val == "1" {
this.JsonResult(1, "您提交的上一次采集未完成，请稍后再提交新的内容采集")
}
this.SetSession("crawl", "1")
defer this.DelSession("crawl")
urlStr := this.GetString("url")
force, _ := this.GetBool("force") //是否是强力采集，强力采集，使用Chrome
intelligence, _ := this.GetInt("intelligence") //是否是强力采集，强力采集，使用Chrome
contType, _ := this.GetInt("type")
diySel := this.GetString("diy")
content, err := utils.CrawlHtml2Markdown(urlStr, contType, force, intelligence, diySel)
if err != nil {
this.JsonResult(1, "采集失败："+err.Error())
}
this.JsonResult(0, "采集成功", content)
}
this.JsonResult(1, "请先登录再操作")
}
//搜索
func (this *BaseController) Search() {
if wd := strings.TrimSpace(this.GetString("wd")); wd != "" {
this.Redirect(beego.URLFor("LabelController.Index", ":key", wd), 302)
return
}
this.Data["SeoTitle"] = "搜索 - " + this.Sitename
this.TplName = "widgets/search.html"
}
//关注或取消关注
func (this *BaseController) SetFollow() {
var cancel bool
if this.Member.MemberId == 0 {
this.JsonResult(1, "请先登录")
}
uid, _ := this.GetInt(":uid")
if uid == this.Member.MemberId {
this.JsonResult(1, "自己不能关注自己")
}
cancel, _ = new(models.Fans).FollowOrCancel(uid, this.Member.MemberId)
if cancel {
this.JsonResult(0, "您已经成功取消了关注")
}
this.JsonResult(0, "您已经成功关注了Ta")
}
// 项目静态文件
func (this *BaseController) ProjectsFile() {
prefix := "projects/"
object := prefix + this.GetString(":splat")
//这里的时间只是起到缓存的作用
t, _ := time.Parse("2006-01-02 15:04:05", "2006-01-02 15:04:05")
date := t.Format(http.TimeFormat)
since := this.Ctx.Request.Header.Get("If-Modified-Since")
if since == date {
this.Ctx.ResponseWriter.WriteHeader(http.StatusNotModified)
return
}
if utils.StoreType == utils.StoreOss { //oss
reader, err := store.NewOss().GetFileReader(object)
if err != nil {
beego.Error(err.Error())
this.Abort("404")
}
b, err := ioutil.ReadAll(reader)
if err != nil {
beego.Error(err.Error())
this.Abort("404")
}
this.Ctx.ResponseWriter.Header().Set("Last-Modified", date)
this.Ctx.ResponseWriter.Write(b)
} else { //local
this.Abort("404")
}
}
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