X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/00d1ef67636df59460bd4e060f6da4b0c9bcb24c..7e2e07da8cc7985e773e619410801c6dd84afe8b:/hotline/transaction_handlers.go diff --git a/hotline/transaction_handlers.go b/hotline/transaction_handlers.go index 9e61427..c17510a 100644 --- a/hotline/transaction_handlers.go +++ b/hotline/transaction_handlers.go @@ -45,13 +45,10 @@ var TransactionHandlers = map[uint16]TransactionType{ Name: "tranNotifyDeleteUser", }, tranAgreed: { - Access: accessAlwaysAllow, Name: "tranAgreed", Handler: HandleTranAgreed, }, tranChatSend: { - Access: accessSendChat, - DenyMsg: "You are not allowed to participate in chat.", Handler: HandleChatSend, Name: "tranChatSend", RequiredFields: []requiredField{ @@ -68,20 +65,16 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandleDelNewsArt, }, tranDelNewsItem: { - Access: accessAlwaysAllow, // Granular access enforced inside the handler // Has multiple access flags: News Delete Folder (37) or News Delete Category (35) // TODO: Implement inside the handler Name: "tranDelNewsItem", Handler: HandleDelNewsItem, }, tranDeleteFile: { - Access: accessAlwaysAllow, // Granular access enforced inside the handler Name: "tranDeleteFile", Handler: HandleDeleteFile, }, tranDeleteUser: { - Access: accessDeleteUser, - DenyMsg: "You are not allowed to delete accounts.", Name: "tranDeleteUser", Handler: HandleDeleteUser, }, @@ -110,12 +103,10 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandleGetClientConnInfoText, }, tranGetFileInfo: { - Access: accessAlwaysAllow, Name: "tranGetFileInfo", Handler: HandleGetFileInfo, }, tranGetFileNameList: { - Access: accessAlwaysAllow, Name: "tranGetFileNameList", Handler: HandleGetFileNameList, }, @@ -144,13 +135,11 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandleGetNewsCatNameList, }, tranGetUser: { - Access: accessOpenUser, DenyMsg: "You are not allowed to view accounts.", Name: "tranGetUser", Handler: HandleGetUser, }, tranGetUserNameList: { - Access: accessAlwaysAllow, Name: "tranHandleGetUserNameList", Handler: HandleGetUserNameList, }, @@ -167,17 +156,14 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandleInviteToChat, }, tranJoinChat: { - Access: accessAlwaysAllow, Name: "tranJoinChat", Handler: HandleJoinChat, }, tranKeepAlive: { - Access: accessAlwaysAllow, Name: "tranKeepAlive", Handler: HandleKeepAlive, }, tranLeaveChat: { - Access: accessAlwaysAllow, Name: "tranJoinChat", Handler: HandleLeaveChat, }, @@ -231,14 +217,13 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandlePostNewsArt, }, tranRejectChatInvite: { - Access: accessAlwaysAllow, Name: "tranRejectChatInvite", Handler: HandleRejectChatInvite, }, tranSendInstantMsg: { Access: accessAlwaysAllow, - //Access: accessSendPrivMsg, - //DenyMsg: "You are not allowed to send private messages", + // Access: accessSendPrivMsg, + // DenyMsg: "You are not allowed to send private messages", Name: "tranSendInstantMsg", Handler: HandleSendInstantMsg, RequiredFields: []requiredField{ @@ -252,17 +237,23 @@ var TransactionHandlers = map[uint16]TransactionType{ }, }, tranSetChatSubject: { - Access: accessAlwaysAllow, Name: "tranSetChatSubject", Handler: HandleSetChatSubject, }, + tranMakeFileAlias: { + Name: "tranMakeFileAlias", + Handler: HandleMakeAlias, + RequiredFields: []requiredField{ + {ID: fieldFileName, minLen: 1}, + {ID: fieldFilePath, minLen: 1}, + {ID: fieldFileNewPath, minLen: 1}, + }, + }, tranSetClientUserInfo: { - Access: accessAlwaysAllow, Name: "tranSetClientUserInfo", Handler: HandleSetClientUserInfo, }, tranSetFileInfo: { - Access: accessAlwaysAllow, // granular access is in the handler Name: "tranSetFileInfo", Handler: HandleSetFileInfo, }, @@ -273,13 +264,10 @@ var TransactionHandlers = map[uint16]TransactionType{ Handler: HandleSetUser, }, tranUploadFile: { - Access: accessUploadFile, - DenyMsg: "You are not allowed to upload files.", Name: "tranUploadFile", Handler: HandleUploadFile, }, tranUploadFldr: { - Access: accessAlwaysAllow, // TODO: what should this be? Name: "tranUploadFldr", Handler: HandleUploadFolder, }, @@ -292,6 +280,11 @@ var TransactionHandlers = map[uint16]TransactionType{ } func HandleChatSend(cc *ClientConn, t *Transaction) (res []Transaction, err error) { + if !authorize(cc.Account.Access, accessSendChat) { + res = append(res, cc.NewErrReply(t, "You are not allowed to participate in chat.")) + return res, err + } + // Truncate long usernames trunc := fmt.Sprintf("%13s", cc.UserName) formattedMsg := fmt.Sprintf("\r%.14s: %s", trunc, t.GetField(fieldData).Data) @@ -347,13 +340,13 @@ func HandleChatSend(cc *ClientConn, t *Transaction) (res []Transaction, err erro // 101 Data Optional // 214 Quoting message Optional // -//Fields used in the reply: +// Fields used in the reply: // None func HandleSendInstantMsg(cc *ClientConn, t *Transaction) (res []Transaction, err error) { msg := t.GetField(fieldData) ID := t.GetField(fieldUserID) // TODO: Implement reply quoting - //options := transaction.GetField(hotline.fieldOptions) + // options := transaction.GetField(hotline.fieldOptions) res = append(res, *NewTransaction( @@ -367,23 +360,18 @@ func HandleSendInstantMsg(cc *ClientConn, t *Transaction) (res []Transaction, er ) id, _ := byteToInt(ID.Data) - //keys := make([]uint16, 0, len(cc.Server.Clients)) - //for k := range cc.Server.Clients { - // keys = append(keys, k) - //} - otherClient := cc.Server.Clients[uint16(id)] if otherClient == nil { return res, errors.New("ohno") } // Respond with auto reply if other client has it enabled - if len(*otherClient.AutoReply) > 0 { + if len(otherClient.AutoReply) > 0 { res = append(res, *NewTransaction( tranServerMsg, cc.ID, - NewField(fieldData, *otherClient.AutoReply), + NewField(fieldData, otherClient.AutoReply), NewField(fieldUserName, otherClient.UserName), NewField(fieldUserID, *otherClient.ID), NewField(fieldOptions, []byte{0, 1}), @@ -397,16 +385,16 @@ func HandleSendInstantMsg(cc *ClientConn, t *Transaction) (res []Transaction, er } func HandleGetFileInfo(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - fileName := string(t.GetField(fieldFileName).Data) - filePath := cc.Server.Config.FileRoot + ReadFilePath(t.GetField(fieldFilePath).Data) + fileName := t.GetField(fieldFileName).Data + filePath := t.GetField(fieldFilePath).Data - ffo, err := NewFlattenedFileObject(filePath, fileName) + ffo, err := NewFlattenedFileObject(cc.Server.Config.FileRoot, filePath, fileName) if err != nil { return res, err } res = append(res, cc.NewReply(t, - NewField(fieldFileName, []byte(fileName)), + NewField(fieldFileName, fileName), NewField(fieldFileTypeString, ffo.FlatFileInformationFork.TypeSignature), NewField(fieldFileCreatorString, ffo.FlatFileInformationFork.CreatorSignature), NewField(fieldFileComment, ffo.FlatFileInformationFork.Comment), @@ -427,14 +415,24 @@ func HandleGetFileInfo(cc *ClientConn, t *Transaction) (res []Transaction, err e // * 210 File comment Optional // Fields used in the reply: None func HandleSetFileInfo(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - fileName := string(t.GetField(fieldFileName).Data) - filePath := cc.Server.Config.FileRoot + ReadFilePath(t.GetField(fieldFilePath).Data) - //fileComment := t.GetField(fieldFileComment).Data + fileName := t.GetField(fieldFileName).Data + filePath := t.GetField(fieldFilePath).Data + + fullFilePath, err := readPath(cc.Server.Config.FileRoot, filePath, fileName) + if err != nil { + return res, err + } + + fullNewFilePath, err := readPath(cc.Server.Config.FileRoot, filePath, t.GetField(fieldFileNewName).Data) + if err != nil { + return nil, err + } + + // fileComment := t.GetField(fieldFileComment).Data fileNewName := t.GetField(fieldFileNewName).Data if fileNewName != nil { - path := filePath + "/" + fileName - fi, err := os.Stat(path) + fi, err := FS.Stat(fullFilePath) if err != nil { return res, err } @@ -451,9 +449,9 @@ func HandleSetFileInfo(cc *ClientConn, t *Transaction) (res []Transaction, err e } } - err = os.Rename(filePath+"/"+fileName, filePath+"/"+string(fileNewName)) + err = os.Rename(fullFilePath, fullNewFilePath) if os.IsNotExist(err) { - res = append(res, cc.NewErrReply(t, "Cannot rename file "+fileName+" because it does not exist or cannot be found.")) + res = append(res, cc.NewErrReply(t, "Cannot rename file "+string(fileName)+" because it does not exist or cannot be found.")) return res, err } } @@ -468,16 +466,19 @@ func HandleSetFileInfo(cc *ClientConn, t *Transaction) (res []Transaction, err e // * 202 File path // Fields used in the reply: none func HandleDeleteFile(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - fileName := string(t.GetField(fieldFileName).Data) - filePath := cc.Server.Config.FileRoot + ReadFilePath(t.GetField(fieldFilePath).Data) + fileName := t.GetField(fieldFileName).Data + filePath := t.GetField(fieldFilePath).Data - path := filePath + fileName + fullFilePath, err := readPath(cc.Server.Config.FileRoot, filePath, fileName) + if err != nil { + return res, err + } - cc.Server.Logger.Debugw("Delete file", "src", path) + cc.Server.Logger.Debugw("Delete file", "src", fullFilePath) - fi, err := os.Stat(path) + fi, err := os.Stat(fullFilePath) if err != nil { - res = append(res, cc.NewErrReply(t, "Cannot delete file "+fileName+" because it does not exist or cannot be found.")) + res = append(res, cc.NewErrReply(t, "Cannot delete file "+string(fileName)+" because it does not exist or cannot be found.")) return res, nil } switch mode := fi.Mode(); { @@ -493,7 +494,7 @@ func HandleDeleteFile(cc *ClientConn, t *Transaction) (res []Transaction, err er } } - if err := os.RemoveAll(path); err != nil { + if err := os.RemoveAll(fullFilePath); err != nil { return res, err } @@ -509,8 +510,8 @@ func HandleMoveFile(cc *ClientConn, t *Transaction) (res []Transaction, err erro cc.Server.Logger.Debugw("Move file", "src", filePath+"/"+fileName, "dst", fileNewPath+"/"+fileName) - path := filePath + "/" + fileName - fi, err := os.Stat(path) + fp := filePath + "/" + fileName + fi, err := os.Stat(fp) if err != nil { return res, err } @@ -631,16 +632,17 @@ func HandleSetUser(cc *ClientConn, t *Transaction) (res []Transaction, err error } } - // TODO: If we have just promoted a connected user to admin, notify - // connected clients to turn the user red - res = append(res, cc.NewReply(t)) return res, err } func HandleGetUser(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - userLogin := string(t.GetField(fieldUserLogin).Data) - account := cc.Server.Accounts[userLogin] + if !authorize(cc.Account.Access, accessOpenUser) { + res = append(res, cc.NewErrReply(t, "You are not allowed to view accounts.")) + return res, err + } + + account := cc.Server.Accounts[string(t.GetField(fieldUserLogin).Data)] if account == nil { errorT := cc.NewErrReply(t, "Account does not exist.") res = append(res, errorT) @@ -693,6 +695,11 @@ func HandleNewUser(cc *ClientConn, t *Transaction) (res []Transaction, err error } func HandleDeleteUser(cc *ClientConn, t *Transaction) (res []Transaction, err error) { + if !authorize(cc.Account.Access, accessDeleteUser) { + res = append(res, cc.NewErrReply(t, "You are not allowed to delete accounts.")) + return res, err + } + // TODO: Handle case where account doesn't exist; e.g. delete race condition login := DecodeUserString(t.GetField(fieldUserLogin).Data) @@ -792,27 +799,9 @@ func HandleGetUserNameList(cc *ClientConn, t *Transaction) (res []Transaction, e return res, err } -func (cc *ClientConn) notifyNewUserHasJoined() (res []Transaction, err error) { - // Notify other ccs that a new user has connected - cc.NotifyOthers( - *NewTransaction( - tranNotifyChangeUser, nil, - NewField(fieldUserName, cc.UserName), - NewField(fieldUserID, *cc.ID), - NewField(fieldUserIconID, *cc.Icon), - NewField(fieldUserFlags, *cc.Flags), - ), - ) - - return res, nil -} - func HandleTranAgreed(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - bs := make([]byte, 2) - binary.BigEndian.PutUint16(bs, *cc.Server.NextGuestID) - + cc.Agreed = true cc.UserName = t.GetField(fieldUserName).Data - *cc.ID = bs *cc.Icon = t.GetField(fieldUserIconID).Data options := t.GetField(fieldOptions).Data @@ -834,12 +823,20 @@ func HandleTranAgreed(cc *ClientConn, t *Transaction) (res []Transaction, err er // Check auto response if optBitmap.Bit(autoResponse) == 1 { - *cc.AutoReply = t.GetField(fieldAutomaticResponse).Data + cc.AutoReply = t.GetField(fieldAutomaticResponse).Data } else { - *cc.AutoReply = []byte{} + cc.AutoReply = []byte{} } - _, _ = cc.notifyNewUserHasJoined() + cc.notifyOthers( + *NewTransaction( + tranNotifyChangeUser, nil, + NewField(fieldUserName, cc.UserName), + NewField(fieldUserID, *cc.ID), + NewField(fieldUserIconID, *cc.Icon), + NewField(fieldUserFlags, *cc.Flags), + ), + ) res = append(res, cc.NewReply(t)) @@ -995,9 +992,9 @@ func HandleGetNewsArtNameList(cc *ClientConn, t *Transaction) (res []Transaction var cat NewsCategoryListData15 cats := cc.Server.ThreadedNews.Categories - for _, path := range pathStrs { - cat = cats[path] - cats = cats[path].SubCats + for _, fp := range pathStrs { + cat = cats[fp] + cats = cats[fp].SubCats } nald := cat.GetNewsArtListData() @@ -1008,7 +1005,7 @@ func HandleGetNewsArtNameList(cc *ClientConn, t *Transaction) (res []Transaction func HandleGetNewsArtData(cc *ClientConn, t *Transaction) (res []Transaction, err error) { // Request fields - // 325 News path + // 325 News fp // 326 News article ID // 327 News article data flavor @@ -1017,9 +1014,9 @@ func HandleGetNewsArtData(cc *ClientConn, t *Transaction) (res []Transaction, er var cat NewsCategoryListData15 cats := cc.Server.ThreadedNews.Categories - for _, path := range pathStrs { - cat = cats[path] - cats = cats[path].SubCats + for _, fp := range pathStrs { + cat = cats[fp] + cats = cats[fp].SubCats } newsArtID := t.GetField(fieldNewsArtID).Data @@ -1069,8 +1066,8 @@ func HandleDelNewsItem(cc *ClientConn, t *Transaction) (res []Transaction, err e delName := pathStrs[len(pathStrs)-1] if len(pathStrs) > 1 { - for _, path := range pathStrs[0 : len(pathStrs)-1] { - cats = cats[path].SubCats + for _, fp := range pathStrs[0 : len(pathStrs)-1] { + cats = cats[fp].SubCats } } @@ -1130,7 +1127,7 @@ func HandlePostNewsArt(cc *ClientConn, t *Transaction) (res []Transaction, err e newArt := NewsArtData{ Title: string(t.GetField(fieldNewsArtTitle).Data), Poster: string(cc.UserName), - Date: NewsDate(), + Date: toHotlineTime(time.Now()), PrevArt: []byte{0, 0, 0, 0}, NextArt: []byte{0, 0, 0, 0}, ParentArt: append([]byte{0, 0}, t.GetField(fieldNewsArtID).Data...), @@ -1186,9 +1183,15 @@ func HandleGetMsgs(cc *ClientConn, t *Transaction) (res []Transaction, err error func HandleDownloadFile(cc *ClientConn, t *Transaction) (res []Transaction, err error) { fileName := t.GetField(fieldFileName).Data - filePath := ReadFilePath(t.GetField(fieldFilePath).Data) + filePath := t.GetField(fieldFilePath).Data + + var fp FilePath + err = fp.UnmarshalBinary(filePath) + if err != nil { + return res, err + } - ffo, err := NewFlattenedFileObject(cc.Server.Config.FileRoot+filePath, string(fileName)) + ffo, err := NewFlattenedFileObject(cc.Server.Config.FileRoot, filePath, fileName) if err != nil { return res, err } @@ -1196,11 +1199,9 @@ func HandleDownloadFile(cc *ClientConn, t *Transaction) (res []Transaction, err transactionRef := cc.Server.NewTransactionRef() data := binary.BigEndian.Uint32(transactionRef) - cc.Server.Logger.Infow("File download", "path", filePath) - ft := &FileTransfer{ FileName: fileName, - FilePath: []byte(filePath), + FilePath: filePath, ReferenceNumber: transactionRef, Type: FileDownload, } @@ -1261,7 +1262,11 @@ func HandleDownloadFolder(cc *ClientConn, t *Transaction) (res []Transaction, er return res, err } - fullFilePath := fmt.Sprintf("%v%v", cc.Server.Config.FileRoot+fp.String(), string(fileTransfer.FileName)) + fullFilePath, err := readPath(cc.Server.Config.FileRoot, t.GetField(fieldFilePath).Data, t.GetField(fieldFileName).Data) + if err != nil { + return res, err + } + transferSize, err := CalcTotalSize(fullFilePath) if err != nil { return res, err @@ -1290,6 +1295,21 @@ func HandleUploadFolder(cc *ClientConn, t *Transaction) (res []Transaction, err transactionRef := cc.Server.NewTransactionRef() data := binary.BigEndian.Uint32(transactionRef) + var fp FilePath + if t.GetField(fieldFilePath).Data != nil { + if err = fp.UnmarshalBinary(t.GetField(fieldFilePath).Data); err != nil { + return res, err + } + } + + // Handle special cases for Upload and Drop Box folders + if !authorize(cc.Account.Access, accessUploadAnywhere) { + if !fp.IsUploadDir() && !fp.IsDropbox() { + res = append(res, cc.NewErrReply(t, fmt.Sprintf("Cannot accept upload of the folder \"%v\" because you are only allowed to upload to the \"Uploads\" folder.", string(t.GetField(fieldFileName).Data)))) + return res, err + } + } + fileTransfer := &FileTransfer{ FileName: t.GetField(fieldFileName).Data, FilePath: t.GetField(fieldFilePath).Data, @@ -1304,33 +1324,47 @@ func HandleUploadFolder(cc *ClientConn, t *Transaction) (res []Transaction, err return res, err } +// HandleUploadFile +// Special cases: +// * If the target directory contains "uploads" (case insensitive) func HandleUploadFile(cc *ClientConn, t *Transaction) (res []Transaction, err error) { + if !authorize(cc.Account.Access, accessUploadFile) { + res = append(res, cc.NewErrReply(t, "You are not allowed to upload files.")) + return res, err + } + fileName := t.GetField(fieldFileName).Data filePath := t.GetField(fieldFilePath).Data + var fp FilePath + if filePath != nil { + if err = fp.UnmarshalBinary(filePath); err != nil { + return res, err + } + } + + // Handle special cases for Upload and Drop Box folders + if !authorize(cc.Account.Access, accessUploadAnywhere) { + if !fp.IsUploadDir() && !fp.IsDropbox() { + res = append(res, cc.NewErrReply(t, fmt.Sprintf("Cannot accept upload of the file \"%v\" because you are only allowed to upload to the \"Uploads\" folder.", string(fileName)))) + return res, err + } + } + transactionRef := cc.Server.NewTransactionRef() data := binary.BigEndian.Uint32(transactionRef) - fileTransfer := &FileTransfer{ + cc.Server.FileTransfers[data] = &FileTransfer{ FileName: fileName, FilePath: filePath, ReferenceNumber: transactionRef, Type: FileUpload, } - cc.Server.FileTransfers[data] = fileTransfer - res = append(res, cc.NewReply(t, NewField(fieldRefNum, transactionRef))) return res, err } -// User options -const ( - refusePM = 0 - refuseChat = 1 - autoResponse = 2 -) - func HandleSetClientUserInfo(cc *ClientConn, t *Transaction) (res []Transaction, err error) { var icon []byte if len(t.GetField(fieldUserIconID).Data) == 4 { @@ -1348,23 +1382,17 @@ func HandleSetClientUserInfo(cc *ClientConn, t *Transaction) (res []Transaction, optBitmap := big.NewInt(int64(binary.BigEndian.Uint16(options))) flagBitmap := big.NewInt(int64(binary.BigEndian.Uint16(*cc.Flags))) - // Check refuse private PM option - if optBitmap.Bit(refusePM) == 1 { - flagBitmap.SetBit(flagBitmap, userFlagRefusePM, 1) - binary.BigEndian.PutUint16(*cc.Flags, uint16(flagBitmap.Int64())) - } + flagBitmap.SetBit(flagBitmap, userFlagRefusePM, optBitmap.Bit(refusePM)) + binary.BigEndian.PutUint16(*cc.Flags, uint16(flagBitmap.Int64())) - // Check refuse private chat option - if optBitmap.Bit(refuseChat) == 1 { - flagBitmap.SetBit(flagBitmap, userFLagRefusePChat, 1) - binary.BigEndian.PutUint16(*cc.Flags, uint16(flagBitmap.Int64())) - } + flagBitmap.SetBit(flagBitmap, userFLagRefusePChat, optBitmap.Bit(refuseChat)) + binary.BigEndian.PutUint16(*cc.Flags, uint16(flagBitmap.Int64())) // Check auto response if optBitmap.Bit(autoResponse) == 1 { - *cc.AutoReply = t.GetField(fieldAutomaticResponse).Data + cc.AutoReply = t.GetField(fieldAutomaticResponse).Data } else { - *cc.AutoReply = []byte{} + cc.AutoReply = []byte{} } } @@ -1380,9 +1408,9 @@ func HandleSetClientUserInfo(cc *ClientConn, t *Transaction) (res []Transaction, return res, err } -// HandleKeepAlive response to keepalive transactions with an empty reply -// HL 1.9.2 Client sends keepalive msg every 3 minutes -// HL 1.2.3 Client doesn't send keepalives +// HandleKeepAlive responds to keepalive transactions with an empty reply +// * HL 1.9.2 Client sends keepalive msg every 3 minutes +// * HL 1.2.3 Client doesn't send keepalives func HandleKeepAlive(cc *ClientConn, t *Transaction) (res []Transaction, err error) { res = append(res, cc.NewReply(t)) @@ -1390,14 +1418,29 @@ func HandleKeepAlive(cc *ClientConn, t *Transaction) (res []Transaction, err err } func HandleGetFileNameList(cc *ClientConn, t *Transaction) (res []Transaction, err error) { - filePath := cc.Server.Config.FileRoot + fullPath, err := readPath( + cc.Server.Config.FileRoot, + t.GetField(fieldFilePath).Data, + nil, + ) + if err != nil { + return res, err + } - path := t.GetField(fieldFilePath).Data - if len(path) > 0 { - filePath = cc.Server.Config.FileRoot + ReadFilePath(path) + var fp FilePath + if t.GetField(fieldFilePath).Data != nil { + if err = fp.UnmarshalBinary(t.GetField(fieldFilePath).Data); err != nil { + return res, err + } } - fileNames, err := getFileNameList(filePath) + // Handle special case for drop box folders + if fp.IsDropbox() && !authorize(cc.Account.Access, accessViewDropBoxes) { + res = append(res, cc.NewReply(t)) + return res, err + } + + fileNames, err := getFileNameList(fullPath) if err != nil { return res, err } @@ -1594,3 +1637,41 @@ func HandleSetChatSubject(cc *ClientConn, t *Transaction) (res []Transaction, er return res, err } + +// HandleMakeAlias makes a file alias using the specified path. +// Fields used in the request: +// 201 File name +// 202 File path +// 212 File new path Destination path +// +// Fields used in the reply: +// None +func HandleMakeAlias(cc *ClientConn, t *Transaction) (res []Transaction, err error) { + if !authorize(cc.Account.Access, accessMakeAlias) { + res = append(res, cc.NewErrReply(t, "You are not allowed to make aliases.")) + return res, err + } + fileName := t.GetField(fieldFileName).Data + filePath := t.GetField(fieldFilePath).Data + fileNewPath := t.GetField(fieldFileNewPath).Data + + fullFilePath, err := readPath(cc.Server.Config.FileRoot, filePath, fileName) + if err != nil { + return res, err + } + + fullNewFilePath, err := readPath(cc.Server.Config.FileRoot, fileNewPath, fileName) + if err != nil { + return res, err + } + + cc.Server.Logger.Debugw("Make alias", "src", fullFilePath, "dst", fullNewFilePath) + + if err := FS.Symlink(fullFilePath, fullNewFilePath); err != nil { + res = append(res, cc.NewErrReply(t, "Error creating alias")) + return res, nil + } + + res = append(res, cc.NewReply(t)) + return res, err +}