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mycorrhiza/web/stuff.go
2021-05-11 13:33:00 +05:00

93 lines
3.0 KiB
Go

package web
// stuff.go is used for meta stuff about the wiki or all hyphae at once.
import (
"github.com/bouncepaw/mycorrhiza/cfg"
"io"
"log"
"math/rand"
"net/http"
"github.com/bouncepaw/mycorrhiza/hyphae"
"github.com/bouncepaw/mycorrhiza/shroom"
"github.com/bouncepaw/mycorrhiza/user"
"github.com/bouncepaw/mycorrhiza/util"
"github.com/bouncepaw/mycorrhiza/views"
)
func initStuff() {
http.HandleFunc("/list/", handlerList)
http.HandleFunc("/reindex/", handlerReindex)
http.HandleFunc("/update-header-links/", handlerUpdateHeaderLinks)
http.HandleFunc("/random/", handlerRandom)
http.HandleFunc("/about/", handlerAbout)
}
// handlerList shows a list of all hyphae in the wiki in random order.
func handlerList(w http.ResponseWriter, rq *http.Request) {
util.PrepareRq(rq)
util.HTTP200Page(w, views.BaseHTML("List of pages", views.HyphaListHTML(), user.FromRequest(rq)))
}
// handlerReindex reindexes all hyphae by checking the wiki storage directory anew.
func handlerReindex(w http.ResponseWriter, rq *http.Request) {
util.PrepareRq(rq)
if ok := user.CanProceed(rq, "reindex"); !ok {
httpErr(w, http.StatusForbidden, cfg.HomeHypha, "Not enough rights", "You must be an admin to reindex hyphae.")
log.Println("Rejected", rq.URL)
return
}
hyphae.ResetCount()
log.Println("Wiki storage directory is", cfg.WikiDir)
log.Println("Start indexing hyphae...")
hyphae.Index(cfg.WikiDir)
log.Println("Indexed", hyphae.Count(), "hyphae")
http.Redirect(w, rq, "/", http.StatusSeeOther)
}
// handlerUpdateHeaderLinks updates header links by reading the configured hypha, if there is any, or resorting to default values.
//
// See https://mycorrhiza.lesarbr.es/hypha/configuration/header
func handlerUpdateHeaderLinks(w http.ResponseWriter, rq *http.Request) {
util.PrepareRq(rq)
if ok := user.CanProceed(rq, "update-header-links"); !ok {
httpErr(w, http.StatusForbidden, cfg.HomeHypha, "Not enough rights", "You must be a moderator to update header links.")
log.Println("Rejected", rq.URL)
return
}
shroom.SetHeaderLinks()
http.Redirect(w, rq, "/", http.StatusSeeOther)
}
// handlerRandom redirects to a random hypha.
func handlerRandom(w http.ResponseWriter, rq *http.Request) {
util.PrepareRq(rq)
var (
randomHyphaName string
amountOfHyphae = hyphae.Count()
)
if amountOfHyphae == 0 {
httpErr(w, http.StatusNotFound, cfg.HomeHypha, "There are no hyphae",
"It is impossible to display a random hypha because the wiki does not contain any hyphae")
return
}
i := rand.Intn(amountOfHyphae)
for h := range hyphae.YieldExistingHyphae() {
if i == 0 {
randomHyphaName = h.Name
}
i--
}
http.Redirect(w, rq, "/hypha/"+randomHyphaName, http.StatusSeeOther)
}
// handlerAbout shows a summary of wiki's software.
func handlerAbout(w http.ResponseWriter, rq *http.Request) {
w.Header().Set("Content-Type", "text/html;charset=utf-8")
w.WriteHeader(http.StatusOK)
_, err := io.WriteString(w, views.BaseHTML("About "+cfg.WikiName, views.AboutHTML(), user.FromRequest(rq)))
if err != nil {
log.Println(err)
}
}