teafolio/pages.go
2021-04-12 13:16:30 +12:00

241 lines
7.3 KiB
Go

package main
import (
"bytes"
"fmt"
"html"
"log"
"net/http"
"net/url"
"strings"
)
func (this *Application) Templatepage(w http.ResponseWriter, r *http.Request, pageDesc, extraHead string, cb func()) {
pageTitle := this.cfg.Template.AppName
if pageDesc != "" {
pageTitle = pageDesc + ` | ` + pageTitle
}
w.Header().Set(`Content-Type`, `text/html; charset=UTF-8`)
w.WriteHeader(200)
fmt.Fprint(w, `<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta charset="UTF-8">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>`+html.EscapeString(pageTitle)+`</title>
`+extraHead+`
<link rel="shortcut icon" href="/static/logo.png" type="image/png">
<link rel="apple-touch-icon" href="/static/logo.png" type="image/png">
<link type="text/css" rel="stylesheet" href="/static/style.css">
</head>
<body>
<div id="container">
<div id="content">
<h1><a href="/"><div id="logo"></div>`+html.EscapeString(this.cfg.Template.AppName)+`</a></h1>
`)
cb()
fmt.Fprint(w, `
</body>
<script type="text/javascript" src="/static/site.js"></script>
</html>
`)
}
func (this *Application) internalError(w http.ResponseWriter, r *http.Request, err error) {
log.Printf("%s %s: %s", r.Method, r.URL.Path, err)
http.Error(w, "An internal error occurred.", 500)
}
func (this *Application) Delay(w http.ResponseWriter, r *http.Request) {
this.Templatepage(w, r, "Loading...", "", func() {
fmt.Fprintf(w, `
<h2>Loading, please wait...</h2>
<meta http-equiv="refresh" content="5">
`)
})
}
func (this *Application) Homepage(w http.ResponseWriter, r *http.Request) {
this.reposMut.RLock()
defer this.reposMut.RUnlock()
if len(this.reposCache) == 0 {
// We haven't loaded the repositories from Gitea yet
this.Delay(w, r)
return
}
// Ready for template
this.Templatepage(w, r, "", "", func() {
fmt.Fprint(w, `
`+this.cfg.Template.HomepageHeaderHTML+`
<select id="sortorder" style="float:right;">
<option value="data-sort-al">Alphabetical</option>
<option value="data-sort-ls">Lifespan</option>
<option value="data-sort-ct" selected>Recent projects</option>
<option value="data-sort-mt">Recent updates</option>
</select>
<h2>Projects <small>(`+fmt.Sprintf("%d", len(this.reposCache))+`)</small></h2>
<table id="projtable-main" class="projtable">
`)
for _, repo := range this.reposCache {
pageHref := html.EscapeString(`/` + url.PathEscape(repo.Name))
normalisedDesc := repo.Description
normalisedDesc = strings.TrimRight(repo.Description, `.`)
if len(normalisedDesc) > 0 {
// Lowercase the first letter of the description, unless it starts with an acronym (all letters uppercase first word) or CamelCase word
firstWord := strings.SplitN(normalisedDesc, " ", 2)[0]
isAcronymOrCamelCase := len(firstWord) > 1 && (firstWord[1:] != strings.ToLower(firstWord[1:]))
if !(isAcronymOrCamelCase || firstWord == `Go`) {
normalisedDesc = strings.ToLower(normalisedDesc[0:1]) + normalisedDesc[1:]
}
// Add leading `<COMMA><SPACE>` to separate from the repo title
normalisedDesc = `, ` + normalisedDesc
}
rowClass := ""
for _, topic := range repo.topics {
rowClass += `taggedWith-` + topic + ` `
}
fmt.Fprint(w, `
<tr
class="`+html.EscapeString(rowClass)+`"
data-sort-al="`+fmt.Sprintf("-%d", this.reposAlphabeticalOrder[repo.Name])+`"
data-sort-ls="`+fmt.Sprintf("%.0f", repo.newestCommit.Sub(repo.GiteaCreated).Seconds())+`"
data-sort-ct="`+fmt.Sprintf("%d", repo.GiteaCreated.Unix())+`"
data-sort-mt="`+fmt.Sprintf("%d", repo.newestCommit.Unix())+`"
>
<td>
<a href="`+pageHref+`"><img class="homeimage" loading="lazy" src="`+html.EscapeString(`/:banner/`+url.PathEscape(repo.Name))+`"></div></a>
</td>
<td>
<strong>`+html.EscapeString(repo.Name)+`</strong>`+html.EscapeString(normalisedDesc)+`
<a href="`+pageHref+`" class="article-read-more">more...</a>
<br>
<small>
`)
for _, topic := range repo.topics {
fmt.Fprint(w, `<a class="tag tag-link" data-tag="`+html.EscapeString(topic)+`">`+html.EscapeString(topic)+`</a> `)
}
fmt.Fprint(w, `
</small>
</td>
</tr>
`)
}
fmt.Fprint(w, `
</table>
`)
})
}
func (this *Application) Bannerpage(w http.ResponseWriter, r *http.Request, repoName string) {
ctx := r.Context()
images, err := this.imageFilesForRepo(ctx, repoName)
if err != nil {
this.internalError(w, r, fmt.Errorf("listing images: %w", err))
return
}
if len(images) == 0 {
w.Header().Set(`Location`, `/static/no_image.png`)
w.WriteHeader(301)
return
}
w.Header().Set(`Location`, images[0].RawURL)
w.WriteHeader(301)
}
func (this *Application) Repopage(w http.ResponseWriter, r *http.Request, repoName string) {
ctx := r.Context()
repoURL := this.cfg.Gitea.URL + url.PathEscape(this.cfg.Gitea.Org) + `/` + url.PathEscape(repoName)
extraHead := ""
readme, err := this.repoFile(ctx, repoName, `README.md`)
if err != nil {
this.internalError(w, r, fmt.Errorf("loading README.md: %w", err))
return
}
lines := strings.Split(string(readme), "\n")
// We add some extra badges based on special text entries
extraBadgesMd := ` ![](https://img.shields.io/badge/build-success-brightgreen)`
extraBadgesMd += ` [![](https://img.shields.io/badge/vcs-git-green?logo=git)](` + repoURL + `)`
// Inject more badges to 3rd line; or, create badges on 3rd line if there are none already
if len(lines) >= 3 && strings.Contains(lines[2], `shields.io`) {
lines[2] += ` ` + extraBadgesMd
} else {
// Push other lines down
lines = append([]string{lines[0], lines[1], extraBadgesMd, ""}, lines[2:]...)
}
readmeHtml, err := this.renderMarkdown(ctx, repoName, strings.Join(lines, "\n"))
if err != nil {
this.internalError(w, r, fmt.Errorf("rendering markdown: %w", err))
return
}
images, err := this.imageFilesForRepo(ctx, repoName)
if err != nil {
this.internalError(w, r, fmt.Errorf("listing images: %w", err))
return
}
// If the Git repository contains a top-level go.mod file, allow vanity imports
if goMod, err := this.repoFile(ctx, repoName, `go.mod`); err == nil {
// Check the first line should be `module MODULENAME\n`
firstLine := bytes.SplitN(goMod, []byte("\n"), 2)[0]
if bytes.HasPrefix(firstLine, []byte("module ")) {
moduleName := firstLine[7:]
extraHead = `<meta name="go-import" content="` + html.EscapeString(string(moduleName)) + ` git ` + repoURL + `.git">`
}
}
// De-escalate all headers in rendered markdown to match our style
repl := strings.NewReplacer(`<h1`, `<h2`, `<h2`, `<h3`, `<h3`, `<h4`,
`</h1>`, `</h2>`, `</h2>`, `</h3>`, `</h3>`, `</h4>`)
// Ready for template
this.Templatepage(w, r, repoName, extraHead, func() {
projBodyclass := `projbody`
if len(images) > 0 {
projBodyclass += ` projbody_halfw`
}
fmt.Fprint(w, `<div class="projinfo"><div class="`+projBodyclass+`">`)
repl.WriteString(w, string(readmeHtml))
fmt.Fprint(w, `</div>`)
if len(images) > 0 {
fmt.Fprint(w, `<div class="projimg">`)
for _, img := range images {
fmt.Fprint(w, `<a href="`+html.EscapeString(img.RawURL)+`"><img alt="" class="thumbimage" src="`+html.EscapeString(img.RawURL)+`" /></a>`)
}
fmt.Fprint(w, `</div>`)
}
fmt.Fprint(w, `<div style="clear:both;"></div>`)
fmt.Fprint(w, `</div>`) // projbody
})
}