func loadPost(c *fs.Context, name string, req *http.Request) (meta *PostData, article string, err error) {
meta = &PostData{
Name: name,
Title: "TITLE HERE",
PlusAuthor: plusRsc,
PlusAPIKey: plusKey,
HostURL: hostURL(req),
}
art, fi, err := c.Read("blog/post/" + name)
if err != nil {
return nil, "", err
}
if bytes.HasPrefix(art, []byte("{\n")) {
i := bytes.Index(art, []byte("\n}\n"))
if i < 0 {
panic("cannot find end of json metadata")
}
hdr, rest := art[:i+3], art[i+3:]
if err := json.Unmarshal(hdr, meta); err != nil {
panic(fmt.Sprintf("loading %s: %s", name, err))
}
art = rest
}
meta.FileModTime = fi.ModTime
meta.FileSize = fi.Size
return meta, replacer.Replace(string(art)), nil
}
func loadSize(ctxt *fs.Context, name string, max int) *image.RGBA {
data, _, err := ctxt.Read("qr/upload/" + name + ".png")
if err != nil {
panic(err)
}
i, _, err := image.Decode(bytes.NewBuffer(data))
if err != nil {
panic(err)
}
b := i.Bounds()
dx, dy := max, max
if b.Dx() > b.Dy() {
dy = b.Dy() * dx / b.Dx()
} else {
dx = b.Dx() * dy / b.Dy()
}
var irgba *image.RGBA
switch i := i.(type) {
case *image.RGBA:
irgba = resize.ResizeRGBA(i, i.Bounds(), dx, dy)
case *image.NRGBA:
irgba = resize.ResizeNRGBA(i, i.Bounds(), dx, dy)
}
return irgba
}
func flag(w http.ResponseWriter, req *http.Request, img string, ctxt *fs.Context) {
if !isImgName(img) && !isTagName(img) {
fmt.Fprintf(w, "Invalid image.\n")
return
}
data, _, _ := ctxt.Read("qr/flag/" + img)
data = append(data, '!')
ctxt.Write("qr/flag/"+img, data)
fmt.Fprintf(w, "Thank you. The image has been reported.\n")
}
func mainTemplate(c *fs.Context) *template.Template {
t := template.New("main")
t.Funcs(funcMap)
main, _, err := c.Read("blog/main.html")
if err != nil {
panic(err)
}
style, _, _ := c.Read("blog/style.html")
main = append(main, style...)
_, err = t.Parse(string(main))
if err != nil {
panic(err)
}
return t
}
func runTemplate(c *fs.Context, w http.ResponseWriter, name string, data interface{}) {
t := template.New("main")
main, _, err := c.Read(name)
if err != nil {
panic(err)
}
style, _, _ := c.Read("style.html")
main = append(main, style...)
_, err = t.Parse(string(main))
if err != nil {
panic(err)
}
var buf bytes.Buffer
if err := t.Execute(&buf, &data); err != nil {
panic(err)
}
w.Write(buf.Bytes())
}
func oldRedirect(ctxt *fs.Context, w http.ResponseWriter, req *http.Request, p string) {
m := map[string]string{}
if key, ok := ctxt.CacheLoad("blog:oldRedirectMap", "blog/post", &m); !ok {
dir, err := ctxt.ReadDir("blog/post")
if err != nil {
panic(err)
}
for _, d := range dir {
meta, _, err := loadPost(ctxt, d.Name, req)
if err != nil {
// Should not happen: we just listed the directory.
panic(err)
}
m[meta.OldURL] = "/" + d.Name
}
ctxt.CacheStore(key, m)
}
if url, ok := m[p]; ok {
http.Redirect(w, req, url, http.StatusFound)
return
}
notfound(ctxt, w, req)
}