143 lines
3.5 KiB
Go
143 lines
3.5 KiB
Go
package yatwiki3
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import (
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"database/sql"
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"html/template"
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"log"
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"net/http"
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"strings"
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)
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type WikiServer struct {
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db *WikiDB
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opts *ServerOptions
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pageTmp *template.Template
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}
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func NewWikiServer(opts *ServerOptions) (*WikiServer, error) {
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wdb, err := NewWikiDB(opts.DBFilePath)
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if err != nil {
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return nil, err
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}
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tmpl, err := template.New("yatwiki/page").Parse(pageTemplate)
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if err != nil {
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panic(err)
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}
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ws := WikiServer{
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db: wdb,
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opts: opts,
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pageTmp: tmpl,
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}
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return &ws, nil
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}
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func (this *WikiServer) Close() {
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this.db.Close()
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}
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func (this *WikiServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Server", "Yatwiki3")
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if r.Method == "GET" {
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if r.URL.Path == this.opts.ExpectBaseURL+"wiki.css" {
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w.Header().Set("Content-Type", "text/css")
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content, _ := wikiCssBytes()
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w.Write(content)
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return
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} else if r.URL.Path == this.opts.ExpectBaseURL+"highlight.js" {
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w.Header().Set("Content-Type", "application/javascript")
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content, _ := highlightJsBytes()
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w.Write(content)
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return
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} else if r.URL.Path == this.opts.ExpectBaseURL+"favicon.ico" && len(this.opts.FaviconFilePath) > 0 {
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w.Header().Set("Content-Type", "image/x-icon")
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http.ServeFile(w, r, this.opts.FaviconFilePath)
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return
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} else if r.URL.Path == this.opts.ExpectBaseURL+"formatting" {
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pto := DefaultPageTemplateOptions(this.opts)
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pto.CurrentPageName = "Formatting help"
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pto.Content = `
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<h2>Formatting help</h2><br><br>
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<ul>
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<li>[h]header[/h]</li>
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<li>[b]bold[/b]</li>
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<li>[u]underline[/u]</li>
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<li>[i]italic[/i]</li>
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<li>[s]strikethrough[/s]</li>
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<li>[spoiler]spoiler[/spoiler]</li>
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<li>[list] item [*] item [/list]</li>
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<li>[url=address]title[/url]</li>
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<li>[article=page name]title[/article] or [rev=id]title[/rev]</li>
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<li>[img]image-url[/img]</li>
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<li>[imgur]asdf.jpg[/imgur]</li>
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<li>[code]fixed width[/code]</li>
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<li>[section=header]content[/section]</li>
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<li>[html]raw html[/html]</li>
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</ul>`
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this.servePageResponse(w, pto)
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return
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} else if strings.HasPrefix(r.URL.Path, this.opts.ExpectBaseURL+"view/") {
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articleTitle, err := url.QueryUnescape(r.URL.Path[len(this.opts.ExpectBaseURL+"view/"):])
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if err != nil {
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this.serveErrorMessage(w, err)
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return
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}
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a, err := this.db.GetLatestVersion(articleTitle)
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if err != nil {
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this.serveErrorMessage(w, err)
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return
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}
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pto := DefaultPageTemplateOptions(this.opts)
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pto.CurrentPageName = articleTitle
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pto.CurrentPageIsArticle = true
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bcr := NewBBCodeRenderer(this.opts.ExpectBaseURL)
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pto.Content = bcr.RenderHTML(string(a.Body))
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pto.LoadCodeResources = bcr.CodePresent
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this.servePageResponse(w, pto)
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return
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}
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}
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// No match? Add 'Page not found' to next session response, and redirect to homepage
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http.Error(w, "Page not found", 404)
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/*
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pto.SessionMessage = `Invalid request.`
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//pto.CurrentPageIsArticle = true
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//pto.CurrentPageName = "quotes/\"2017"
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bcr := NewBBCodeRenderer(this.opts.ExpectBaseURL)
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pto.Content = bcr.RenderHTML(`[h]Hello World[/h] this content is [b]bold[/b] <script>alert("hi");</script>`)
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this.servePageResponse(w, pto)
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*/
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}
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func (this *WikiServer) serveErrorMessage(w http.ResponseWriter, message error) {
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if message == sql.ErrNoRows {
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// 404 not found
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}
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// TODO Add error message to session response, and redirect to homepage
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http.Error(w, message.Error(), 500)
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}
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func (this *WikiServer) servePageResponse(w http.ResponseWriter, pto *pageTemplateOptions) {
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err := this.pageTmp.Execute(w, pto)
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if err != nil {
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log.Println(err.Error())
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}
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}
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