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pages.go
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pages.go
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package main
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/flosch/pongo2"
"github.com/zenazn/goji/web"
)
type RespType int
const (
RespPLAIN RespType = iota
RespJSON
RespHTML
RespAUTO
)
func indexHandler(c web.C, w http.ResponseWriter, r *http.Request) {
err := renderTemplate(Templates["index.html"], pongo2.Context{
"maxsize": Config.maxSize,
"expirylist": listExpirationTimes(),
"forcerandom": Config.forceRandomFilename,
}, r, w)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
func pasteHandler(c web.C, w http.ResponseWriter, r *http.Request) {
err := renderTemplate(Templates["paste.html"], pongo2.Context{
"expirylist": listExpirationTimes(),
"forcerandom": Config.forceRandomFilename,
}, r, w)
if err != nil {
oopsHandler(c, w, r, RespHTML, "")
}
}
func apiDocHandler(c web.C, w http.ResponseWriter, r *http.Request) {
err := renderTemplate(Templates["API.html"], pongo2.Context{
"siteurl": getSiteURL(r),
"forcerandom": Config.forceRandomFilename,
}, r, w)
if err != nil {
oopsHandler(c, w, r, RespHTML, "")
}
}
func makeCustomPageHandler(fileName string) func(c web.C, w http.ResponseWriter, r *http.Request) {
return func(c web.C, w http.ResponseWriter, r *http.Request) {
err := renderTemplate(Templates["custom_page.html"], pongo2.Context{
"siteurl": getSiteURL(r),
"forcerandom": Config.forceRandomFilename,
"contents": customPages[fileName],
"filename": fileName,
"pagename": customPagesNames[fileName],
}, r, w)
if err != nil {
oopsHandler(c, w, r, RespHTML, "")
}
}
}
func notFoundHandler(c web.C, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(404)
err := renderTemplate(Templates["404.html"], pongo2.Context{}, r, w)
if err != nil {
oopsHandler(c, w, r, RespHTML, "")
}
}
func oopsHandler(c web.C, w http.ResponseWriter, r *http.Request, rt RespType, msg string) {
if msg == "" {
msg = "Oops! Something went wrong..."
}
if rt == RespHTML {
w.WriteHeader(500)
renderTemplate(Templates["oops.html"], pongo2.Context{"msg": msg}, r, w)
return
} else if rt == RespPLAIN {
w.WriteHeader(500)
fmt.Fprintf(w, "%s", msg)
return
} else if rt == RespJSON {
js, _ := json.Marshal(map[string]string{
"error": msg,
})
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(500)
w.Write(js)
return
} else if rt == RespAUTO {
if strings.EqualFold("application/json", r.Header.Get("Accept")) {
oopsHandler(c, w, r, RespJSON, msg)
} else {
oopsHandler(c, w, r, RespHTML, msg)
}
}
}
func badRequestHandler(c web.C, w http.ResponseWriter, r *http.Request, rt RespType, msg string) {
if rt == RespHTML {
w.WriteHeader(http.StatusBadRequest)
err := renderTemplate(Templates["400.html"], pongo2.Context{"msg": msg}, r, w)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
return
} else if rt == RespPLAIN {
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "%s", msg)
return
} else if rt == RespJSON {
js, _ := json.Marshal(map[string]string{
"error": msg,
})
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusBadRequest)
w.Write(js)
return
} else if rt == RespAUTO {
if strings.EqualFold("application/json", r.Header.Get("Accept")) {
badRequestHandler(c, w, r, RespJSON, msg)
} else {
badRequestHandler(c, w, r, RespHTML, msg)
}
}
}
func unauthorizedHandler(c web.C, w http.ResponseWriter, r *http.Request) {
w.WriteHeader(401)
err := renderTemplate(Templates["401.html"], pongo2.Context{}, r, w)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}