mirror of
https://github.com/osmarks/mycorrhiza.git
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114 lines
3.4 KiB
Go
114 lines
3.4 KiB
Go
// Package histview provides web stuff for history
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package histview
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import (
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"embed"
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"encoding/hex"
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"github.com/bouncepaw/mycorrhiza/cfg"
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"github.com/bouncepaw/mycorrhiza/history"
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"github.com/bouncepaw/mycorrhiza/hyphae"
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"github.com/bouncepaw/mycorrhiza/util"
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"github.com/bouncepaw/mycorrhiza/viewutil"
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"github.com/gorilla/mux"
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"net/http"
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"strconv"
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"strings"
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)
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func InitHandlers(rtr *mux.Router) {
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rtr.PathPrefix("/primitive-diff/").HandlerFunc(handlerPrimitiveDiff)
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rtr.HandleFunc("/recent-changes/{count:[0-9]+}", handlerRecentChanges)
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rtr.HandleFunc("/recent-changes/", func(w http.ResponseWriter, rq *http.Request) {
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http.Redirect(w, rq, "/recent-changes/20", http.StatusSeeOther)
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})
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chainPrimitiveDiff = viewutil.CopyEnRuWith(fs, "view_primitive_diff.html", ruTranslation)
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chainRecentChanges = viewutil.CopyEnRuWith(fs, "view_recent_changes.html", ruTranslation)
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}
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func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
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util.PrepareRq(rq)
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shorterURL := strings.TrimPrefix(rq.URL.Path, "/primitive-diff/")
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revHash, slug, found := strings.Cut(shorterURL, "/")
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if !found || len(revHash) < 7 || len(slug) < 1 {
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http.Error(w, "403 bad request", http.StatusBadRequest)
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return
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}
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paddedRevHash := revHash
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if len(paddedRevHash)%2 != 0 {
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paddedRevHash = paddedRevHash[:len(paddedRevHash)-1]
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}
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if _, err := hex.DecodeString(paddedRevHash); err != nil {
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http.Error(w, "403 bad request", http.StatusBadRequest)
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return
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}
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switch h := hyphae.ByName(util.CanonicalName(slug)).(type) {
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case *hyphae.EmptyHypha:
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http.Error(w, "404 not found", http.StatusNotFound)
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case hyphae.ExistingHypha:
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text, err := history.PrimitiveDiffAtRevision(h.TextFilePath(), revHash)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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primitiveDiff(viewutil.MetaFrom(w, rq), h, revHash, text)
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}
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}
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// handlerRecentChanges displays the /recent-changes/ page.
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func handlerRecentChanges(w http.ResponseWriter, rq *http.Request) {
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// Error ignored: filtered by regex
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editCount, _ := strconv.Atoi(mux.Vars(rq)["count"])
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if editCount > 100 {
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return
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}
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recentChanges(viewutil.MetaFrom(w, rq), editCount, history.RecentChanges(editCount))
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}
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var (
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//go:embed *.html
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fs embed.FS
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ruTranslation = `
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{{define "diff for at title"}}Разница для {{beautifulName .HyphaName}} для {{.Hash}}{{end}}
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{{define "diff for at heading"}}Разница для <a href="/hypha/{{.HyphaName}}">{{beautifulName .HyphaName}}</a> для {{.Hash}}{{end}}
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`
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// TODO: translate recent changes
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chainPrimitiveDiff viewutil.Chain
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chainRecentChanges viewutil.Chain
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)
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type recentChangesData struct {
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*viewutil.BaseData
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EditCount int
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Changes []history.Revision
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UserHypha string
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Stops []int
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}
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func recentChanges(meta viewutil.Meta, editCount int, changes []history.Revision) {
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viewutil.ExecutePage(meta, chainRecentChanges, recentChangesData{
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BaseData: &viewutil.BaseData{},
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EditCount: editCount,
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Changes: changes,
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UserHypha: cfg.UserHypha,
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Stops: []int{20, 50, 100},
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})
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}
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type primitiveDiffData struct {
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*viewutil.BaseData
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HyphaName string
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Hash string
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Text string
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}
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func primitiveDiff(meta viewutil.Meta, h hyphae.ExistingHypha, hash, text string) {
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viewutil.ExecutePage(meta, chainPrimitiveDiff, primitiveDiffData{
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BaseData: &viewutil.BaseData{},
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HyphaName: h.CanonicalName(),
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Hash: hash,
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Text: text,
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})
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}
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