Simple blogging system written in Go https://goblog.app
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

93 lines
2.4 KiB

package main
import (
"io"
"net/http"
"go.goblog.app/app/pkgs/contenttype"
)
type renderData struct {
BlogString string
Canonical string
TorAddress string
Blog *configBlog
User *configUser
Data any
CommentsEnabled bool
WebmentionReceivingEnabled bool
TorUsed bool
EasterEgg bool
// Not directly accessible
app *goBlog
req *http.Request
}
func (d *renderData) LoggedIn() bool {
return d.app.isLoggedIn(d.req)
}
func (a *goBlog) render(w http.ResponseWriter, r *http.Request, f func(*htmlBuilder, *renderData), data *renderData) {
a.renderWithStatusCode(w, r, http.StatusOK, f, data)
}
func (a *goBlog) renderWithStatusCode(w http.ResponseWriter, r *http.Request, statusCode int, f func(*htmlBuilder, *renderData), data *renderData) {
// Check render data
a.checkRenderData(r, data)
// Set content type
w.Header().Set(contentType, contenttype.HTMLUTF8)
// Write status code
w.WriteHeader(statusCode)
// Render
pipeReader, pipeWriter := io.Pipe()
go func() {
f(newHtmlBuilder(pipeWriter), data)
_ = pipeWriter.Close()
}()
_ = pipeReader.CloseWithError(a.min.Get().Minify(contenttype.HTML, w, pipeReader))
}
func (a *goBlog) checkRenderData(r *http.Request, data *renderData) {
if data.app == nil {
data.app = a
}
if data.req == nil {
data.req = r
}
// User
if data.User == nil {
data.User = a.cfg.User
}
// Blog
if data.Blog == nil && data.BlogString == "" {
data.BlogString, data.Blog = a.getBlog(r)
} else if data.Blog == nil {
data.Blog = a.cfg.Blogs[data.BlogString]
} else if data.BlogString == "" {
for name, blog := range a.cfg.Blogs {
if blog == data.Blog {
data.BlogString = name
break
}
}
}
// Tor
if a.cfg.Server.Tor && a.torAddress != "" {
data.TorAddress = a.torAddress + r.RequestURI
}
if torUsed, ok := r.Context().Value(torUsedKey).(bool); ok && torUsed {
data.TorUsed = true
}
// Check if comments enabled
data.CommentsEnabled = data.Blog.Comments != nil && data.Blog.Comments.Enabled
// Check if able to receive webmentions
data.WebmentionReceivingEnabled = a.cfg.Webmention == nil || !a.cfg.Webmention.DisableReceiving
// Easter egg
if ee := a.cfg.EasterEgg; ee != nil && ee.Enabled {
data.EasterEgg = true
}
// Data
if data.Data == nil {
data.Data = map[string]any{}
}
}