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[feat] Synchronize local folder with dropbox (#5591)

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Option to synchronize files in local koreader folder with folder on Dropbox. All files that aren't on the local disk will be downloaded. Files with different sizes will also be downloaded and overwritten.
The download process can be paused or stopped at any time (similar to downloading images in Wikipedia).

Synchronize and settings are available after long press in dropbox account in Cloud storage.
Limitations: Only one folder (without subfolders) can be synchronize with one folder on local storage.
This commit is contained in:
Robert
2019-11-18 18:39:45 +01:00
committed by Frans de Jonge
parent 16fd731f73
commit 04741d8cfd
4 changed files with 349 additions and 31 deletions
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300
frontend/apps/cloudstorage/cloudstorage.lua
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@@ -10,6 +10,7 @@ local Menu = require("ui/widget/menu")
local UIManager = require("ui/uimanager")
local WebDav = require("apps/cloudstorage/webdav")
local lfs = require("libs/libkoreader-lfs")
local T = require("ffi/util").template
local _ = require("gettext")
local Screen = require("device").screen
@@ -26,17 +27,24 @@ local CloudStorage = Menu:extend{
show_parent = nil,
is_popout = false,
is_borderless = true,
title = _("Cloud storage")
}
function CloudStorage:init()
self.cs_settings = self:readSettings()
self.menu_select = nil
self.title = _("Cloud storage")
self.show_parent = self
self.item_table = self:genItemTableFromRoot()
if self.item then
self.item_table = self:genItemTable(self.item)
self.choose_folder_mode = true
else
self.item_table = self:genItemTableFromRoot()
end
self.width = Screen:getWidth()
self.height = Screen:getHeight()
Menu.init(self)
if self.item then
self.item_table[1].callback()
end
end
function CloudStorage:genItemTableFromRoot()
@@ -57,6 +65,8 @@ function CloudStorage:genItemTableFromRoot()
type = server.type,
editable = true,
url = server.url,
sync_source_folder = server.sync_source_folder,
sync_dest_folder = server.sync_dest_folder,
callback = function()
self.type = server.type
self.password = server.password
@@ -69,6 +79,31 @@ function CloudStorage:genItemTableFromRoot()
return item_table
end
function CloudStorage:genItemTable(item)
local item_table = {}
local added_servers = self.cs_settings:readSetting("cs_servers") or {}
for _, server in ipairs(added_servers) do
if server.name == item.text and server.password == item.password and server.type == item.type then
table.insert(item_table, {
text = server.name,
address = server.address,
username = server.username,
password = server.password,
type = server.type,
url = server.url,
callback = function()
self.type = server.type
self.password = server.password
self.address = server.address
self.username = server.username
self:openCloudServer(server.url)
end,
})
end
end
return item_table
end
function CloudStorage:selectCloudType()
local buttons = {
{
@@ -117,7 +152,7 @@ function CloudStorage:openCloudServer(url)
NetworkMgr:promptWifiOn()
return
end
tbl = DropBox:run(url, self.password)
tbl = DropBox:run(url, self.password, self.choose_folder_mode)
elseif self.type == "ftp" then
if not NetworkMgr:isConnected() then
NetworkMgr:promptWifiOn()
@@ -157,6 +192,8 @@ function CloudStorage:onMenuSelect(item)
item.callback()
elseif item.type == "file" then
self:downloadFile(item)
elseif item.type == "other" then
return true
else
table.insert(self.paths, {
url = item.url,
@@ -255,45 +292,254 @@ function CloudStorage:cloudFile(item, path)
UIManager:show(self.download_dialog)
end
function CloudStorage:updateSyncFolder(item, source, dest)
local cs_settings = self:readSettings()
local cs_servers = cs_settings:readSetting("cs_servers") or {}
for _, server in ipairs(cs_servers) do
if server.name == item.text and server.password == item.password and server.type == item.type then
if source then
server.sync_source_folder = source
end
if dest then
server.sync_dest_folder = dest
end
break
end
end
cs_settings:saveSetting("cs_servers", cs_servers)
cs_settings:flush()
end
function CloudStorage:onMenuHold(item)
if item.editable then
local cs_server_dialog
cs_server_dialog = ButtonDialog:new{
if item.type == "folder_long_press" then
local title = T(_("Select this directory?\n\n%1"), item.url)
local onConfirm = self.onConfirm
local button_dialog
button_dialog = ButtonDialogTitle:new{
title = title,
buttons = {
{
{
text = _("Info"),
enabled = true,
text = _("Cancel"),
callback = function()
UIManager:close(cs_server_dialog)
self:infoServer(item)
end
UIManager:close(button_dialog)
end,
},
{
text = _("Edit"),
enabled = true,
text = _("Select"),
callback = function()
UIManager:close(cs_server_dialog)
self:editCloudServer(item)
end
},
{
text = _("Delete"),
enabled = true,
callback = function()
UIManager:close(cs_server_dialog)
self:deleteCloudServer(item)
end
if onConfirm then
onConfirm(item.url)
end
UIManager:close(button_dialog)
UIManager:close(self)
end,
},
},
}
},
}
UIManager:show(button_dialog)
end
if item.editable then
local cs_server_dialog
local buttons = {
{
{
text = _("Info"),
enabled = true,
callback = function()
UIManager:close(cs_server_dialog)
self:infoServer(item)
end
},
{
text = _("Edit"),
enabled = true,
callback = function()
UIManager:close(cs_server_dialog)
self:editCloudServer(item)
end
},
{
text = _("Delete"),
enabled = true,
callback = function()
UIManager:close(cs_server_dialog)
self:deleteCloudServer(item)
end
},
},
}
if item.type == "dropbox" then
table.insert(buttons, {
{
text = _("Synchronize now"),
enabled = item.sync_source_folder ~= nil and item.sync_dest_folder ~= nil,
callback = function()
UIManager:close(cs_server_dialog)
self:synchronizeCloud(item)
end
},
{
text = _("Synchronize settings"),
enabled = true,
callback = function()
UIManager:close(cs_server_dialog)
self:synchronizeSettings(item)
end
},
})
end
cs_server_dialog = ButtonDialog:new{
buttons = buttons
}
UIManager:show(cs_server_dialog)
return true
end
end
function CloudStorage:synchronizeCloud(item)
local Trapper = require("ui/trapper")
Trapper:wrap(function()
Trapper:setPausedText("Download paused.\nDo you want to continue or abort downloading files?")
local ok, downloaded_files, failed_files = pcall(self.downloadListFiles, self, item)
if ok and downloaded_files then
if not failed_files then failed_files = 0 end
local text
if downloaded_files == 0 and failed_files == 0 then
text = _("No files to download from dropbox.")
elseif downloaded_files > 0 and failed_files == 0 then
text = T(_("Successfuly downloaded %1 files from Dropbox to local storage."), downloaded_files)
else
text = T(_("Successfuly downloaded %1 files from Dropbox to local storage.\nFailed downloaded %2 files."),
downloaded_files, failed_files)
end
UIManager:show(InfoMessage:new{
text = text,
timeout = 3,
})
else
Trapper:reset() -- close any last widget not cleaned if error
UIManager:show(InfoMessage:new{
text = _("No files to download from Dropbox.\nPlease check your configuration and connection."),
timeout = 3,
})
end
end)
end
function CloudStorage:downloadListFiles(item)
local local_files = {}
local path = item.sync_dest_folder
local UI = require("ui/trapper")
UI:info(_("Retrieving files…"))
local ok, iter, dir_obj = pcall(lfs.dir, path)
if ok then
for f in iter, dir_obj do
local filename = path .."/" .. f
local attributes = lfs.attributes(filename)
if attributes.mode == "file" then
local_files[f] = attributes.size
end
end
end
local remote_files = DropBox:showFiles(item.sync_source_folder, item.password)
if #remote_files == 0 then
UI:clear()
return false
end
local files_to_download = 0
for i, file in ipairs(remote_files) do
if not local_files[file.text] or local_files[file.text] ~= file.size then
files_to_download = files_to_download + 1
remote_files[i].download = true
end
end
if files_to_download == 0 then
UI:clear()
return 0
end
local response, go_on
local proccessed_files = 0
local success_files = 0
local unsuccess_files = 0
for _, file in ipairs(remote_files) do
if file.download then
proccessed_files = proccessed_files + 1
print(file.url)
local text = string.format("Downloading file (%d/%d):\n%s", proccessed_files, files_to_download, file.text)
go_on = UI:info(text)
if not go_on then
break
end
response = DropBox:downloadFileNoUI(file.url, item.password, item.sync_dest_folder .. "/" .. file.text)
if response then
success_files = success_files + 1
else
unsuccess_files = unsuccess_files + 1
end
end
end
UI:clear()
return success_files, unsuccess_files
end
function CloudStorage:synchronizeSettings(item)
local syn_dialog
local dropbox_sync_folder = item.sync_source_folder or "not set"
local local_sync_folder = item.sync_dest_folder or "not set"
syn_dialog = ButtonDialogTitle:new {
title = T(_("Dropbox folder:\n%1\nLocal folder:\n%2"), dropbox_sync_folder, local_sync_folder),
title_align = "center",
buttons = {
{
{
text = _("Choose dropbox folder"),
callback = function()
UIManager:close(syn_dialog)
require("ui/cloudmgr"):new{
item = item,
onConfirm = function(path)
self:updateSyncFolder(item, path)
item.sync_source_folder = path
self:synchronizeSettings(item)
end,
}:chooseDir()
end,
},
},
{
{
text = _("Choose local folder"),
callback = function()
UIManager:close(syn_dialog)
require("ui/downloadmgr"):new{
onConfirm = function(path)
self:updateSyncFolder(item, nil, path)
item.sync_dest_folder = path
self:synchronizeSettings(item)
end,
}:chooseDir()
end,
},
},
{
{
text = _("Close"),
callback = function()
UIManager:close(syn_dialog)
end,
},
},
}
}
UIManager:show(syn_dialog)
end
function CloudStorage:configCloud(type)
local callbackAdd = function(fields)
local cs_settings = self:readSettings()