mirror of
https://github.com/osmarks/mycorrhiza.git
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124 lines
3.3 KiB
Go
124 lines
3.3 KiB
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"strconv"
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"github.com/gomarkdown/markdown"
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)
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// In different places, revision variable is called `r`. But when there is an http.Request as well, the revision becomes `rev`. TODO: name them consistently.
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type Revision struct {
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Id int `json:"-"`
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FullName string `json:"-"`
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Tags []string `json:"tags"`
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ShortName string `json:"name"`
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Comment string `json:"comment"`
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Author string `json:"author"`
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Time int `json:"time"`
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TextMime string `json:"text_mime"`
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BinaryMime string `json:"binary_mime"`
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TextPath string `json:"-"`
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BinaryPath string `json:"-"`
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}
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func (r *Revision) IdAsStr() string {
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return strconv.Itoa(r.Id)
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}
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// During initialisation, it is guaranteed that r.BinaryMime is set to "" if the revision has no binary data.
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func (r *Revision) hasBinaryData() bool {
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return r.BinaryMime != ""
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}
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func (r *Revision) urlOfBinary() string {
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return fmt.Sprintf("/%s?action=getBinary&rev=%d", r.FullName, r.Id)
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}
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// TODO: use templates https://github.com/bouncepaw/mycorrhiza/issues/2
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func (r *Revision) AsHtml(hyphae map[string]*Hypha) (ret string, err error) {
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ret += `<article class="page">
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<h1 class="page__title">` + r.FullName + `</h1>
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`
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// TODO: support things other than images
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if r.hasBinaryData() {
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ret += fmt.Sprintf(`<img src="%s" class="page__amnt"/>`, r.urlOfBinary())
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}
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contents, err := ioutil.ReadFile(r.TextPath)
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if err != nil {
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return "", err
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}
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// TODO: support more markups.
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// TODO: support mycorrhiza extensions like transclusion.
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switch r.TextMime {
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case "text/markdown":
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html := markdown.ToHTML(contents, nil, nil)
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ret += string(html)
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default:
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ret += fmt.Sprintf(`<pre>%s</pre>`, contents)
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}
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ret += `
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</article>`
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return ret, nil
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}
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func (r *Revision) ActionGetBinary(w http.ResponseWriter) {
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fileContents, err := ioutil.ReadFile(r.BinaryPath)
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if err != nil {
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log.Println("Failed to load binary data of", r.FullName, r.Id)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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w.Header().Set("Content-Type", r.BinaryMime)
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w.WriteHeader(http.StatusOK)
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w.Write(fileContents)
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log.Println("Serving binary data of", r.FullName, r.Id)
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}
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func (r *Revision) ActionRaw(w http.ResponseWriter) {
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fileContents, err := ioutil.ReadFile(r.TextPath)
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if err != nil {
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log.Println("Failed to load text data of", r.FullName, r.Id)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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w.Header().Set("Content-Type", r.TextMime)
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w.WriteHeader(http.StatusOK)
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w.Write(fileContents)
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log.Println("Serving text data of", r.FullName, r.Id)
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}
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func (r *Revision) ActionZen(w http.ResponseWriter) {
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html, err := r.AsHtml(hyphae)
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if err != nil {
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log.Println("Failed to render", r.FullName)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusOK)
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fmt.Fprint(w, html)
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}
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func (r *Revision) ActionView(w http.ResponseWriter, layoutFun func(map[string]*Hypha, Revision, string) string) {
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html, err := r.AsHtml(hyphae)
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if err != nil {
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log.Println("Failed to render", r.FullName)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusOK)
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fmt.Fprint(w, layoutFun(hyphae, *r, html))
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log.Println("Rendering", r.FullName)
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}
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