mirror of
https://github.com/osmarks/mycorrhiza.git
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112 lines
3.2 KiB
Go
112 lines
3.2 KiB
Go
package shroom
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"log"
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"mime/multipart"
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"os"
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"path/filepath"
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"strings"
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"github.com/bouncepaw/mycorrhiza/files"
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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/mimetype"
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"github.com/bouncepaw/mycorrhiza/user"
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)
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// UploadText edits a hypha' text part and makes a history record about that.
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func UploadText(h *hyphae.Hypha, data []byte, message string, u *user.User) (hop *history.Op, errtitle string) {
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hop = history.Operation(history.TypeEditText)
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var action string
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if h.Exists {
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action = "Edit"
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} else {
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action = "Create"
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}
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if message == "" {
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hop.WithMsg(fmt.Sprintf("%s ‘%s’", action, h.Name))
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} else {
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hop.WithMsg(fmt.Sprintf("%s ‘%s’: %s", action, h.Name, message))
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}
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if errtitle, err := CanEdit(u, h); err != nil {
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return hop.WithErrAbort(err), errtitle
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}
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if len(bytes.TrimSpace(data)) == 0 && h.BinaryPath == "" {
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return hop.WithErrAbort(errors.New("No data passed")), "Empty"
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}
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return uploadHelp(h, hop, ".myco", data, u)
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}
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// UploadBinary edits a hypha' attachment and makes a history record about that.
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func UploadBinary(h *hyphae.Hypha, mime string, file multipart.File, u *user.User) (*history.Op, string) {
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var (
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hop = history.Operation(history.TypeEditBinary).WithMsg(fmt.Sprintf("Upload attachment for ‘%s’ with type ‘%s’", h.Name, mime))
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data, err = io.ReadAll(file)
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)
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if err != nil {
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return hop.WithErrAbort(err), err.Error()
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}
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if errtitle, err := CanAttach(u, h); err != nil {
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return hop.WithErrAbort(err), errtitle
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}
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if len(data) == 0 {
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return hop.WithErrAbort(errors.New("No data passed")), "Empty"
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}
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return uploadHelp(h, hop, mimetype.ToExtension(mime), data, u)
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}
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// uploadHelp is a helper function for UploadText and UploadBinary
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func uploadHelp(h *hyphae.Hypha, hop *history.Op, ext string, data []byte, u *user.User) (*history.Op, string) {
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var (
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fullPath = filepath.Join(files.HyphaeDir(), h.Name+ext)
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originalFullPath = &h.TextPath
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originalText = "" // for backlink update
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)
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// Reject if the path is outside the hyphae dir
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if !strings.HasPrefix(fullPath, files.HyphaeDir()) {
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err := errors.New("bad path")
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return hop.WithErrAbort(err), err.Error()
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}
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if hop.Type == history.TypeEditBinary {
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originalFullPath = &h.BinaryPath
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}
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if err := os.MkdirAll(filepath.Dir(fullPath), 0777); err != nil {
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return hop.WithErrAbort(err), err.Error()
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}
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if hop.Type == history.TypeEditText {
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originalText, _ = FetchTextPart(h)
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}
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if err := os.WriteFile(fullPath, data, 0666); err != nil {
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return hop.WithErrAbort(err), err.Error()
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}
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if h.Exists && *originalFullPath != fullPath && *originalFullPath != "" {
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if err := history.Rename(*originalFullPath, fullPath); err != nil {
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return hop.WithErrAbort(err), err.Error()
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}
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log.Println("Move", *originalFullPath, "to", fullPath)
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}
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h.InsertIfNew()
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if h.Exists && h.TextPath != "" && hop.Type == history.TypeEditText && !history.FileChanged(fullPath) {
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return hop.Abort(), "No changes"
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}
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*originalFullPath = fullPath
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if hop.Type == history.TypeEditText {
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hyphae.BacklinksOnEdit(h, originalText)
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}
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return hop.WithFiles(fullPath).WithUser(u).Apply(), ""
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}
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