2020-08-05 15:08:59 +00:00
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package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path/filepath"
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2020-08-10 19:58:02 +00:00
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"github.com/bouncepaw/mycorrhiza/history"
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2020-08-31 17:52:26 +00:00
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"github.com/bouncepaw/mycorrhiza/templates"
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"github.com/bouncepaw/mycorrhiza/util"
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2020-08-05 15:08:59 +00:00
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)
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func init() {
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http.HandleFunc("/upload-binary/", handlerUploadBinary)
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http.HandleFunc("/upload-text/", handlerUploadText)
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http.HandleFunc("/edit/", handlerEdit)
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2020-09-29 15:04:22 +00:00
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http.HandleFunc("/delete-ask/", handlerDeleteAsk)
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http.HandleFunc("/delete-confirm/", handlerDeleteConfirm)
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2020-10-02 15:31:59 +00:00
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http.HandleFunc("/rename-ask/", handlerRenameAsk)
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http.HandleFunc("/rename-confirm/", handlerRenameConfirm)
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}
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func handlerRenameAsk(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "rename-ask")
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_, isOld = HyphaStorage[hyphaName]
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)
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util.HTTP200Page(w, base("Rename "+hyphaName+"?", templates.RenameAskHTML(hyphaName, isOld)))
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}
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func handlerRenameConfirm(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "rename-confirm")
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hyphaData, isOld = HyphaStorage[hyphaName]
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newName = CanonicalName(rq.PostFormValue("new-name"))
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_, newNameIsUsed = HyphaStorage[newName]
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2020-10-03 16:56:56 +00:00
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recursive bool
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2020-10-02 15:31:59 +00:00
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)
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2020-10-03 16:56:56 +00:00
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if rq.PostFormValue("recursive") == "true" {
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recursive = true
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}
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2020-10-02 15:31:59 +00:00
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switch {
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case newNameIsUsed:
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error: hypha exists",
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fmt.Sprintf("Hypha named <a href='/page/%s'>%s</a> already exists.", hyphaName, hyphaName))
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case newName == "":
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error: no name",
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"No new name is given.")
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case !isOld:
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error: no such hypha",
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"Cannot rename a hypha that does not exist yet.")
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case !HyphaPattern.MatchString(newName):
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error: invalid name",
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"Invalid new name. Names cannot contain characters <code>^?!:#@><*|\"\\'&%</code>")
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default:
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2020-10-03 16:56:56 +00:00
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if hop := hyphaData.RenameHypha(hyphaName, newName, recursive); len(hop.Errs) == 0 {
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2020-10-02 15:31:59 +00:00
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http.Redirect(w, rq, "/page/"+newName, http.StatusSeeOther)
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} else {
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HttpErr(w, http.StatusInternalServerError, hyphaName,
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"Error: could not rename hypha",
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fmt.Sprintf("Could not rename this hypha due to an internal error. Server errors: <code>%v</code>", hop.Errs))
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}
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}
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2020-09-29 15:04:22 +00:00
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}
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// handlerDeleteAsk shows a delete dialog.
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func handlerDeleteAsk(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "delete-ask")
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_, isOld = HyphaStorage[hyphaName]
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)
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util.HTTP200Page(w, base("Delete "+hyphaName+"?", templates.DeleteAskHTML(hyphaName, isOld)))
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}
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// handlerDeleteConfirm deletes a hypha for sure
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func handlerDeleteConfirm(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "delete-confirm")
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hyphaData, isOld = HyphaStorage[hyphaName]
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)
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if isOld {
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// If deleted successfully
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if hop := hyphaData.DeleteHypha(hyphaName); len(hop.Errs) == 0 {
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http.Redirect(w, rq, "/page/"+hyphaName, http.StatusSeeOther)
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} else {
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HttpErr(w, http.StatusInternalServerError, hyphaName,
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"Error: could not delete hypha",
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fmt.Sprintf("Could not delete this hypha due to an internal error. Server errors: <code>%v</code>", hop.Errs))
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}
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} else {
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// The precondition is to have the hypha in the first place.
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HttpErr(w, http.StatusPreconditionFailed, hyphaName,
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"Error: no such hypha",
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"Could not delete this hypha because it does not exist.")
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}
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2020-08-05 15:08:59 +00:00
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}
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// handlerEdit shows the edit form. It doesn't edit anything actually.
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func handlerEdit(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "edit")
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hyphaData, isOld = HyphaStorage[hyphaName]
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warning string
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textAreaFill string
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err error
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)
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if isOld {
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textAreaFill, err = FetchTextPart(hyphaData)
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if err != nil {
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log.Println(err)
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HttpErr(w, http.StatusInternalServerError, hyphaName, "Error",
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"Could not fetch text data")
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return
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}
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} else {
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warning = `<p>You are creating a new hypha.</p>`
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}
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2020-08-31 17:52:26 +00:00
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util.HTTP200Page(w, base("Edit"+hyphaName, templates.EditHTML(hyphaName, textAreaFill, warning)))
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2020-08-05 15:08:59 +00:00
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}
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// handlerUploadText uploads a new text part for the hypha.
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func handlerUploadText(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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var (
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hyphaName = HyphaNameFromRq(rq, "upload-text")
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hyphaData, isOld = HyphaStorage[hyphaName]
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textData = rq.PostFormValue("text")
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textDataBytes = []byte(textData)
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fullPath = filepath.Join(WikiDir, hyphaName+"&.gmi")
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)
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if textData == "" {
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error",
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"No text data passed")
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return
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}
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// For some reason, only 0777 works. Why?
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if err := os.MkdirAll(filepath.Dir(fullPath), 0777); err != nil {
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log.Println(err)
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}
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if err := ioutil.WriteFile(fullPath, textDataBytes, 0644); err != nil {
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log.Println(err)
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HttpErr(w, http.StatusInternalServerError, hyphaName, "Error",
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fmt.Sprintf("Failed to write %d bytes to %s",
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len(textDataBytes), fullPath))
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return
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}
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if !isOld {
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2020-10-18 20:26:05 +00:00
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hd := HyphaData{
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2020-08-05 15:08:59 +00:00
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textType: TextGemini,
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textPath: fullPath,
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}
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2020-10-18 20:26:05 +00:00
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HyphaStorage[hyphaName] = &hd
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hyphaData = &hd
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2020-08-05 15:08:59 +00:00
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} else {
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hyphaData.textType = TextGemini
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hyphaData.textPath = fullPath
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}
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2020-08-10 19:58:02 +00:00
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history.Operation(history.TypeEditText).
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WithFiles(fullPath).
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WithMsg(fmt.Sprintf("Edit ‘%s’", hyphaName)).
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WithSignature("anon").
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Apply()
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2020-10-18 20:26:05 +00:00
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http.Redirect(w, rq, "/page/"+hyphaName, http.StatusSeeOther)
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2020-08-05 15:08:59 +00:00
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}
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// handlerUploadBinary uploads a new binary part for the hypha.
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func handlerUploadBinary(w http.ResponseWriter, rq *http.Request) {
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log.Println(rq.URL)
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hyphaName := HyphaNameFromRq(rq, "upload-binary")
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rq.ParseMultipartForm(10 << 20)
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// Read file
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file, handler, err := rq.FormFile("binary")
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if file != nil {
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defer file.Close()
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}
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// If file is not passed:
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if err != nil {
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HttpErr(w, http.StatusBadRequest, hyphaName, "Error",
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"No binary data passed")
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return
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}
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// If file is passed:
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var (
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hyphaData, isOld = HyphaStorage[hyphaName]
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mimeType = MimeToBinaryType(handler.Header.Get("Content-Type"))
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ext = mimeType.Extension()
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fullPath = filepath.Join(WikiDir, hyphaName+"&"+ext)
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)
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data, err := ioutil.ReadAll(file)
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if err != nil {
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HttpErr(w, http.StatusInternalServerError, hyphaName, "Error",
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"Could not read passed data")
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return
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}
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if err := os.MkdirAll(filepath.Dir(fullPath), 0777); err != nil {
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log.Println(err)
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}
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if !isOld {
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2020-10-18 20:26:05 +00:00
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hd := HyphaData{
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2020-08-05 15:08:59 +00:00
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binaryPath: fullPath,
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binaryType: mimeType,
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}
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2020-10-18 20:26:05 +00:00
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HyphaStorage[hyphaName] = &hd
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hyphaData = &hd
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2020-08-05 15:08:59 +00:00
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} else {
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if hyphaData.binaryPath != fullPath {
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2020-08-10 19:58:02 +00:00
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if err := history.Rename(hyphaData.binaryPath, fullPath); err != nil {
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2020-08-05 15:08:59 +00:00
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log.Println(err)
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2020-08-10 19:58:02 +00:00
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} else {
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log.Println("Moved", hyphaData.binaryPath, "to", fullPath)
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2020-08-05 15:08:59 +00:00
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}
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}
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hyphaData.binaryPath = fullPath
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hyphaData.binaryType = mimeType
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}
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2020-08-19 18:54:23 +00:00
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if err = ioutil.WriteFile(fullPath, data, 0644); err != nil {
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HttpErr(w, http.StatusInternalServerError, hyphaName, "Error",
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"Could not save passed data")
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return
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}
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2020-08-05 15:08:59 +00:00
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log.Println("Written", len(data), "of binary data for", hyphaName, "to path", fullPath)
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2020-08-10 19:58:02 +00:00
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history.Operation(history.TypeEditText).
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2020-08-19 18:54:23 +00:00
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WithFiles(fullPath, hyphaData.binaryPath).
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2020-08-10 19:58:02 +00:00
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WithMsg(fmt.Sprintf("Upload binary part for ‘%s’ with type ‘%s’", hyphaName, mimeType.Mime())).
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WithSignature("anon").
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Apply()
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2020-10-18 20:26:05 +00:00
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http.Redirect(w, rq, "/page/"+hyphaName, http.StatusSeeOther)
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2020-08-05 15:08:59 +00:00
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}
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