├── .luacheckrc ├── .luarc.json ├── COPYING ├── README.md └── syncthing.koplugin ├── _meta.lua ├── insert_menu.lua ├── lib ├── LICENCE_lua-feedparser ├── LICENSE_LuaXML ├── dateparser.lua ├── handler.lua └── xml.lua ├── main.lua ├── start-syncthing └── syncthing /.luacheckrc: -------------------------------------------------------------------------------- 1 | unused_args = false 2 | std = "luajit" 3 | -- ignore implicit self 4 | self = false 5 | 6 | globals = { 7 | "G_reader_settings", 8 | "G_defaults", 9 | "table.pack", 10 | "table.unpack", 11 | } 12 | 13 | read_globals = { 14 | "_ENV", 15 | } 16 | 17 | -- 211 - Unused local variable 18 | -- 631 - Line is too long 19 | ignore = { 20 | "211/__*", 21 | "631", 22 | } 23 | -------------------------------------------------------------------------------- /.luarc.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json", 3 | "runtime.version": "LuaJIT", 4 | } 5 | 6 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published by 637 | the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Syncthing plugin for KOReader 2 | 3 | This is a plugin for running Syncthing on e-readers running KOReader. Syncthing 4 | is a peer-to-peer file synchronization program. This makes it possible to sync 5 | files between your e-reader and computer / phone automatically. The Syncthing 6 | instance on your e-reader can be managed directly in the KOReader menu. 7 | 8 | The method of running Syncthing is originally based on [The Anarcat's blog post](https://anarc.at/hardware/tablet/kobo-clara-hd/#install-syncthing). 9 | 10 | ## Project status 11 | 12 | - This plugin has not been widely tested. Make frequent data backups and use it 13 | at your own risk! 14 | - Tested on Kobo Libra 2 15 | - Some features are not working yet, such as global discovery service 16 | 17 | ## Installation 18 | 19 | ### Prerequisites 20 | 21 | - Currently the plugin is only tested on a Kobo device. Maybe it will also work 22 | on Kindle and other Linux-based environments, but additional testing will be 23 | needed. 24 | - You should have installed KOReader and will need to copy files to the device. 25 | - You need to setup Syncthing on another device, which will be able to connect 26 | to your e-reader in your local Wi-Fi network. 27 | 28 | ### Install plugin 29 | 30 | 1. Download the [latest ZIP from GitHub](https://github.com/jasonchoimtt/koreader-syncthing/archive/refs/heads/main.zip) 31 | and extract the archive. 32 | 2. Copy the folder `syncthing.koplugin` to your KOReader installation, under 33 | the `plugins` folder. For Kobo devices, this is usually 34 | `.adds/koreader/plugins` in the device storage. 35 | 3. Restart KOReader. 36 | 37 | ### Configure devices and folders 38 | 39 | 4. The Syncthing menu will be available under the Tools tab in the file 40 | browser. Check *Syncthing* menu item to start the Syncthing server. Make 41 | sure the e-reader is also connected to Wi-Fi. 42 | 5. On your other Syncthing device, add the e-reader by scanning the QR code or 43 | entering the device ID manually. 44 | 6. Go to the *Pending* menu and accept the device. 45 | 7. On your other Syncthing device, add the e-reader to a folder. 46 | 8. Go to the *Pending* menu and accept the folder. 47 | 9. View the *Status* menu to see sync status. 48 | 10. For other options you will need to use the Syncthing GUI. Use *Set GUI 49 | Password* menu item to set GUI password and go to `http://:8384` 50 | on another device. Login with username `syncthing` and your password. You 51 | can tap *Syncthing Web GUI* menu item to see network info. 52 | 53 | ## FAQ 54 | 55 | - **Why would you want Syncthing on an e-reader?** 56 | 57 | It keeps my books and annotations continuously synchronized with my computer 58 | and my Android phone (which can has a Syncthing app). It comes in handy when 59 | you read books with KOReader on multiple devices. For the privacy-conscious 60 | people, Syncthing does not require creating a cloud account and storing your 61 | data in their cloud. 62 | 63 | - **How well does it work?** 64 | 65 | The synchronization itself usually works quite well on the e-reader side, but 66 | the connectivity is also affected by your other devices and the local network 67 | conditions. I will still need to iron out a few wrinkles to make the 68 | experience great. But having a Syncthing menu right in KOReader is the first 69 | step in making this accessible to the community. 70 | 71 | ## Developing 72 | 73 | - Syncthing binaries are included in the repository from the [official 74 | releases](https://syncthing.net/downloads/) 75 | - Using Linux ARM 32-bit binary 76 | 77 | ## Limitations 78 | 79 | - Currently, global discovery and relay is not working. That means it will not 80 | be possible to sync devices over the internet. 81 | - The Syncthing menu is still limited in functionality when it comes to managing 82 | devices and folders. 83 | 84 | ## TODO 85 | 86 | - [ ] Pull latest syncthing binary from official releases 87 | - [ ] Allow adding device to folder from e-reader 88 | - [ ] Properly accept three-way sharing 89 | - [ ] Fix global discovery service functionality 90 | - [ ] Implement conflict resolution for KOReader metadata file 91 | -------------------------------------------------------------------------------- /syncthing.koplugin/_meta.lua: -------------------------------------------------------------------------------- 1 | local _ = require("gettext") 2 | return { 3 | name = "Syncthing", 4 | fullname = _("Syncthing"), 5 | description = _([[Continuously sync files with other devices in a peer-to-peer manner.]]), 6 | } 7 | -------------------------------------------------------------------------------- /syncthing.koplugin/insert_menu.lua: -------------------------------------------------------------------------------- 1 | -- Add Syncthing to the Tools menu in File Manager, after cloud storage item 2 | local filemanager_order = require("ui/elements/filemanager_menu_order") 3 | 4 | local pos = 1 5 | for index, value in ipairs(filemanager_order.tools) do 6 | if value == "cloud_storage" then 7 | pos = index + 1 8 | break 9 | end 10 | end 11 | 12 | table.insert(filemanager_order.tools, pos, "syncthing") 13 | -------------------------------------------------------------------------------- /syncthing.koplugin/lib/LICENCE_lua-feedparser: -------------------------------------------------------------------------------- 1 | feedparser is available under the (new) BSD license. it uses a 2 | portion of LuaSocket code (copyright 2007 Diego Nehab) 3 | (http://www.keplerproject.org/luaexpat/), which is under the MIT license. 4 | 5 | Copyright (c) 2009 Leo Ponomarev. 6 | All rights reserved. 7 | 8 | Redistribution and use in source and binary forms, with or without 9 | modification, are permitted provided that the following conditions are met: 10 | * Redistributions of source code must retain the above copyright 11 | notice, this list of conditions and the following disclaimer. 12 | * Redistributions in binary form must reproduce the above copyright 13 | notice, this list of conditions and the following disclaimer in the 14 | documentation and/or other materials provided with the distribution. 15 | * Neither the name of the nor the 16 | names of its contributors may be used to endorse or promote products 17 | derived from this software without specific prior written permission. 18 | 19 | THIS SOFTWARE IS PROVIDED BY ''AS IS'' AND ANY 20 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 | DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY 23 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 | -------------------------------------------------------------------------------- /syncthing.koplugin/lib/LICENSE_LuaXML: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2016 Manoel Campos da Silva Filho 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /syncthing.koplugin/lib/dateparser.lua: -------------------------------------------------------------------------------- 1 | local difftime, time, date = os.difftime, os.time, os.date 2 | local format = string.format 3 | local tremove, tinsert = table.remove, table.insert 4 | local pcall, pairs, ipairs, tostring, tonumber, type, setmetatable = pcall, pairs, ipairs, tostring, tonumber, type, setmetatable 5 | 6 | local dateparser={} 7 | 8 | --we shall use the host OS's time conversion facilities. Dealing with all those leap seconds by hand can be such a bore. 9 | local unix_timestamp 10 | do 11 | local now = time() 12 | local local_UTC_offset_sec = difftime(time(date("!*t", now)), time(date("*t", now))) 13 | unix_timestamp = function(t, offset_sec) 14 | local success, improper_time = pcall(time, t) 15 | if not success or not improper_time then return nil, "invalid date. os.time says: " .. (improper_time or "nothing") end 16 | return improper_time - local_UTC_offset_sec - offset_sec 17 | end 18 | end 19 | 20 | local formats = {} -- format names 21 | local format_func = setmetatable({}, {__mode='v'}) --format functions 22 | 23 | ---register a date format parsing function 24 | function dateparser.register_format(format_name, format_function) 25 | if type(format_name)~="string" or type(format_function)~='function' then return nil, "improper arguments, can't register format handler" end 26 | 27 | local found 28 | for i, f in ipairs(format_func) do --for ordering 29 | if f==format_function then 30 | found=true 31 | break 32 | end 33 | end 34 | if not found then 35 | tinsert(format_func, format_function) 36 | end 37 | formats[format_name] = format_function 38 | return true 39 | end 40 | 41 | ---register a date format parsing function 42 | function dateparser.unregister_format(format_name) 43 | if type(format_name)~="string" then return nil, "format name must be a string" end 44 | formats[format_name]=nil 45 | end 46 | 47 | ---return the function responsible for handling format_name date strings 48 | function dateparser.get_format_function(format_name) 49 | return formats[format_name] or nil, ("format %s not registered"):format(format_name) 50 | end 51 | 52 | ---try to parse date string 53 | --@param str date string 54 | --@param date_format optional date format name, if known 55 | --@return unix timestamp if str can be parsed; nil, error otherwise. 56 | function dateparser.parse(str, date_format) 57 | local success, res, err 58 | if date_format then 59 | if not formats[date_format] then return 'unknown date format: ' .. tostring(date_format) end 60 | success, res = pcall(formats[date_format], str) 61 | else 62 | for i, func in ipairs(format_func) do 63 | success, res = pcall(func, str) 64 | if success and res then return res end 65 | end 66 | end 67 | return success and res 68 | end 69 | 70 | dateparser.register_format('W3CDTF', function(rest) 71 | 72 | local year, day_of_year, month, day, week 73 | local hour, minute, second, second_fraction, offset_hours 74 | 75 | local alt_rest 76 | 77 | year, rest = rest:match("^(%d%d%d%d)%-?(.*)$") 78 | 79 | day_of_year, alt_rest = rest:match("^(%d%d%d)%-?(.*)$") 80 | 81 | if day_of_year then rest=alt_rest end 82 | 83 | month, rest = rest:match("^(%d%d)%-?(.*)$") 84 | 85 | day, rest = rest:match("^(%d%d)(.*)$") 86 | if #rest>0 then 87 | rest = rest:match("^T(.*)$") 88 | hour, rest = rest:match("^([0-2][0-9]):?(.*)$") 89 | minute, rest = rest:match("^([0-6][0-9]):?(.*)$") 90 | second, rest = rest:match("^([0-6][0-9])(.*)$") 91 | second_fraction, alt_rest = rest:match("^%.(%d+)(.*)$") 92 | if second_fraction then 93 | rest=alt_rest 94 | end 95 | if rest=="Z" then 96 | rest="" 97 | offset_hours=0 98 | else 99 | local sign, offset_h, offset_m 100 | sign, offset_h, rest = rest:match("^([+-])(%d%d)%:?(.*)$") 101 | local offset_m, alt_rest = rest:match("^(%d%d)(.*)$") 102 | if offset_m then rest=alt_rest end 103 | offset_hours = tonumber(sign .. offset_h) + (tonumber(offset_m) or 0)/60 104 | end 105 | if #rest>0 then return nil end 106 | end 107 | 108 | year = tonumber(year) 109 | local d = { 110 | year = year and (year > 100 and year or (year < 50 and (year + 2000) or (year + 1900))), 111 | month = tonumber(month) or 1, 112 | day = tonumber(day) or 1, 113 | hour = tonumber(hour) or 0, 114 | min = tonumber(minute) or 0, 115 | sec = tonumber(second) or 0, 116 | isdst = false 117 | } 118 | local t = unix_timestamp(d, (offset_hours or 0) * 3600) 119 | if second_fraction then 120 | return t + tonumber("0."..second_fraction) 121 | else 122 | return t 123 | end 124 | end) 125 | 126 | 127 | do 128 | local tz_table = { --taken from http://www.timeanddate.com/library/abbreviations/timezones/ 129 | A = 1, B = 2, C = 3, D = 4, E=5, F = 6, G = 7, H = 8, I = 9, 130 | K = 10, L = 11, M = 12, N = -1, O = -2, P = -3, Q = -4, R = -5, 131 | S = -6, T = -7, U = -8, V = -9, W = -10, X = -11, Y = -12, 132 | Z = 0, 133 | 134 | EST = -5, EDT = -4, CST = -6, CDT = -5, 135 | MST = -7, MDT = -6, PST = -8, PDT = -7, 136 | 137 | GMT = 0, UT = 0, UTC = 0 138 | } 139 | 140 | local month_val = {Jan=1, Feb=2, Mar=3, Apr=4, May=5, Jun=6, Jul=7, Aug=8, Sep=9, Oct=10, Nov=11, Dec=12} 141 | 142 | dateparser.register_format('RFC2822', function(rest) 143 | 144 | local year, month, day, day_of_year, week_of_year, weekday 145 | local hour, minute, second, second_fraction, offset_hours 146 | 147 | local alt_rest 148 | 149 | weekday, alt_rest = rest:match("^(%w%w%w),%s+(.*)$") 150 | if weekday then rest=alt_rest end 151 | day, rest=rest:match("^(%d%d?)%s+(.*)$") 152 | month, rest=rest:match("^(%w%w%w)%s+(.*)$") 153 | month = month_val[month] 154 | year, rest = rest:match("^(%d%d%d?%d?)%s+(.*)$") 155 | hour, rest = rest:match("^(%d%d?):(.*)$") 156 | minute, rest = rest:match("^(%d%d?)(.*)$") 157 | second, alt_rest = rest:match("^:(%d%d)(.*)$") 158 | if second then rest = alt_rest end 159 | local tz, offset_sign, offset_h, offset_m 160 | tz, alt_rest = rest:match("^%s+(%u+)(.*)$") 161 | if tz then 162 | rest = alt_rest 163 | offset_hours = tz_table[tz] 164 | else 165 | offset_sign, offset_h, offset_m, rest = rest:match("^%s+([+-])(%d%d)(%d%d)%s*(.*)$") 166 | offset_hours = tonumber(offset_sign .. offset_h) + (tonumber(offset_m) or 0)/60 167 | end 168 | 169 | if #rest>0 or not (year and day and month and hour and minute) then 170 | return nil 171 | end 172 | 173 | year = tonumber(year) 174 | local d = { 175 | year = year and ((year > 100) and year or (year < 50 and (year + 2000) or (year + 1900))), 176 | month = month, 177 | day = tonumber(day), 178 | 179 | hour= tonumber(hour) or 0, 180 | min = tonumber(minute) or 0, 181 | sec = tonumber(second) or 0, 182 | isdst = false 183 | } 184 | return unix_timestamp(d, offset_hours * 3600) 185 | end) 186 | end 187 | 188 | dateparser.register_format('RFC822', formats.RFC2822) --2822 supercedes 822, but is not a strict superset. For our intents and purposes though, it's perfectly good enough 189 | dateparser.register_format('RFC3339', formats.W3CDTF) --RFC3339 is a subset of W3CDTF 190 | 191 | 192 | return dateparser -------------------------------------------------------------------------------- /syncthing.koplugin/lib/handler.lua: -------------------------------------------------------------------------------- 1 | --- 2 | -- Overview: 3 | -- ========= 4 | -- Standard XML event handler(s) for XML parser module (xml.lua) 5 | -- 6 | -- Features: 7 | -- ========= 8 | -- printHandler - Generate XML event trace 9 | -- domHandler - Generate DOM-like node tree 10 | -- simpleTreeHandler - Generate 'simple' node tree 11 | -- 12 | -- API: 13 | -- ==== 14 | -- Must be called as handler function from xmlParser 15 | -- and implement XML event callbacks (see xmlParser.lua 16 | -- for callback API definition) 17 | -- 18 | -- printHandler: 19 | -- ------------- 20 | -- 21 | -- printHandler prints event trace for debugging 22 | -- 23 | -- domHandler: 24 | -- ----------- 25 | -- 26 | -- domHandler generates a DOM-like node tree structure with 27 | -- a single ROOT node parent - each node is a table comprising 28 | -- fields below. 29 | -- 30 | -- node = { _name = , 31 | -- _type = ROOT|ELEMENT|TEXT|COMMENT|PI|DECL|DTD, 32 | -- _attr = { Node attributes - see callback API }, 33 | -- _parent = 34 | -- _children = { List of child nodes - ROOT/NODE only } 35 | -- } 36 | -- 37 | -- The dom structure is capable of representing any valid XML document 38 | -- 39 | -- simpleTreeHandler 40 | -- ----------------- 41 | -- 42 | -- simpleTreeHandler is a simplified handler which attempts 43 | -- to generate a more 'natural' table based structure which 44 | -- supports many common XML formats. 45 | -- 46 | -- The XML tree structure is mapped directly into a recursive 47 | -- table structure with node names as keys and child elements 48 | -- as either a table of values or directly as a string value 49 | -- for text. Where there is only a single child element this 50 | -- is inserted as a named key - if there are multiple 51 | -- elements these are inserted as a vector (in some cases it 52 | -- may be preferable to always insert elements as a vector 53 | -- which can be specified on a per element basis in the 54 | -- options). Attributes are inserted as a child element with 55 | -- a key of '_attr'. 56 | -- 57 | -- Only Tag/Text & CDATA elements are processed - all others 58 | -- are ignored. 59 | -- 60 | -- This format has some limitations - primarily 61 | -- 62 | -- * Mixed-Content behaves unpredictably - the relationship 63 | -- between text elements and embedded tags is lost and 64 | -- multiple levels of mixed content does not work 65 | -- * If a leaf element has both a text element and attributes 66 | -- then the text must be accessed through a vector (to 67 | -- provide a container for the attribute) 68 | -- 69 | -- In general however this format is relatively useful. 70 | -- 71 | -- It is much easier to understand by running some test 72 | -- data through 'textxml.lua -simpletree' than to read this) 73 | -- 74 | -- Options 75 | -- ======= 76 | -- simpleTreeHandler.options.noReduce = { = bool,.. } 77 | -- 78 | -- - Nodes not to reduce children vector even if only 79 | -- one child 80 | -- 81 | -- domHandler.options.(comment|pi|dtd|decl)Node = bool 82 | -- 83 | -- - Include/exclude given node types 84 | -- 85 | -- Usage 86 | -- ===== 87 | -- Pased as delegate in xmlParser constructor and called 88 | -- as callback by xmlParser:parse(xml) method. 89 | -- 90 | -- See textxml.lua for examples 91 | -- License: 92 | -- ======== 93 | -- 94 | -- This code is freely distributable under the terms of the Lua license 95 | -- (http://www.lua.org/copyright.html) 96 | -- 97 | -- History 98 | -- ======= 99 | -- $Id: handler.lua,v 1.1.1.1 2001/11/28 06:11:33 paulc Exp $ 100 | -- 101 | -- $Log: handler.lua,v $ 102 | -- Revision 1.1.1.1 2001/11/28 06:11:33 paulc 103 | -- Initial Import 104 | --@author Paul Chakravarti (paulc@passtheaardvark.com)

105 | 106 | 107 | ---Handler to generate a string prepresentation of a table 108 | --Convenience function for printHandler (Does not support recursive tables). 109 | --@param t Table to be parsed 110 | --@returns Returns a string representation of table 111 | local function showTable(t) 112 | local sep = '' 113 | local res = '' 114 | if type(t) ~= 'table' then 115 | return t 116 | end 117 | for k,v in pairs(t) do 118 | if type(v) == 'table' then 119 | v = showTable(v) 120 | end 121 | res = res .. sep .. string.format("%s=%s",k,v) 122 | sep = ',' 123 | end 124 | res = '{'..res..'}' 125 | return res 126 | end 127 | 128 | ---Handler to generate a simple event trace 129 | local printHandler = function() 130 | local obj = {} 131 | obj.starttag = function(self,t,a,s,e) 132 | io.write("Start : "..t.."\n") 133 | if a then 134 | for k,v in pairs(a) do 135 | io.write(string.format(" + %s='%s'\n",k,v)) 136 | end 137 | end 138 | end 139 | obj.endtag = function(self,t,s,e) 140 | io.write("End : "..t.."\n") 141 | end 142 | obj.text = function(self,t,s,e) 143 | io.write("Text : "..t.."\n") 144 | end 145 | obj.cdata = function(self,t,s,e) 146 | io.write("CDATA : "..t.."\n") 147 | end 148 | obj.comment = function(self,t,s,e) 149 | io.write("Comment : "..t.."\n") 150 | end 151 | obj.dtd = function(self,t,a,s,e) 152 | io.write("DTD : "..t.."\n") 153 | if a then 154 | for k,v in pairs(a) do 155 | io.write(string.format(" + %s='%s'\n",k,v)) 156 | end 157 | end 158 | end 159 | obj.pi = function(self,t,a,s,e) 160 | io.write("PI : "..t.."\n") 161 | if a then 162 | for k,v in pairs(a) do 163 | io. write(string.format(" + %s='%s'\n",k,v)) 164 | end 165 | end 166 | end 167 | obj.decl = function(self,t,a,s,e) 168 | io.write("XML Decl : "..t.."\n") 169 | if a then 170 | for k,v in pairs(a) do 171 | io.write(string.format(" + %s='%s'\n",k,v)) 172 | end 173 | end 174 | end 175 | return obj 176 | end 177 | 178 | 179 | --Obtém a primeira chave de uma tabela 180 | --@param Tabela de onde deverá ser obtido o primeiro elemento 181 | --@return Retorna a primeira chave da tabela 182 | local function getFirstKey(tb) 183 | if type(tb) == "table" then 184 | --O uso da função next não funciona para pegar o primeiro elemento. Trava aqui 185 | --k, v = next(tb) 186 | --return k 187 | for k, v in pairs(tb) do 188 | return k 189 | end 190 | return nil 191 | else 192 | return tb 193 | end 194 | end 195 | 196 | ---Handler to generate a lua table from a XML content string 197 | local function simpleTreeHandler() 198 | local obj = {} 199 | 200 | obj.root = {} 201 | obj.stack = {obj.root;n=1} 202 | obj.options = {noreduce = {}} 203 | 204 | obj.reduce = function(self,node,key,parent) 205 | -- Recursively remove redundant vectors for nodes 206 | -- with single child elements 207 | for k,v in pairs(node) do 208 | if type(v) == 'table' then 209 | self:reduce(v,k,node) 210 | end 211 | end 212 | if #node == 1 and not self.options.noreduce[key] and 213 | node._attr == nil then 214 | parent[key] = node[1] 215 | else 216 | node.n = nil 217 | end 218 | end 219 | 220 | --@param t Table that represents a XML tag 221 | --@param a Attributes table (_attr) 222 | obj.starttag = function(self,t,a) 223 | local node = {} 224 | if self.parseAttributes == true then 225 | node._attr=a 226 | end 227 | 228 | local current = self.stack[#self.stack] 229 | if current[t] then 230 | table.insert(current[t],node) 231 | else 232 | current[t] = {node;n=1} 233 | end 234 | table.insert(self.stack,node) 235 | end 236 | 237 | --@param t Tag name 238 | obj.endtag = function(self,t,s) 239 | --Tabela que representa a tag atualmente sendo processada 240 | local current = self.stack[#self.stack] 241 | --Tabela que representa a tag na qual a tag 242 | --atual está contida. 243 | local prev = self.stack[#self.stack-1] 244 | if not prev[t] then 245 | error("XML Error - Unmatched Tag ["..s..":"..t.."]\n") 246 | end 247 | if prev == self.root then 248 | -- Once parsing complete recursively reduce tree 249 | self:reduce(prev,nil,nil) 250 | end 251 | 252 | local firstKey = getFirstKey(current) 253 | --Se a primeira chave da tabela que representa 254 | --a tag atual não possui nenhum elemento, 255 | --é porque não há nenhum valor associado à tag 256 | -- (como nos casos de tags automaticamente fechadas como ). 257 | --Assim, atribui uma string vazia a mesma para 258 | --que seja retornado vazio no lugar da tag e não 259 | --uma tabela. Retornando uma string vazia 260 | --simplifica para as aplicações NCLua 261 | --para imprimir tal valor. 262 | if firstKey == nil then 263 | current[t] = "" 264 | prev[t] = "" 265 | end 266 | 267 | table.remove(self.stack) 268 | end 269 | 270 | obj.text = function(self,t) 271 | local current = self.stack[#self.stack] 272 | table.insert(current,t) 273 | end 274 | 275 | obj.cdata = obj.text 276 | 277 | return obj 278 | end 279 | 280 | --- domHandler 281 | local function domHandler() 282 | local obj = {} 283 | obj.options = {commentNode=1,piNode=1,dtdNode=1,declNode=1} 284 | obj.root = { _children = {n=0}, _type = "ROOT" } 285 | obj.current = obj.root 286 | obj.starttag = function(self,t,a) 287 | local node = { _type = 'ELEMENT', 288 | _name = t, 289 | _attr = a, 290 | _parent = self.current, 291 | _children = {n=0} } 292 | table.insert(self.current._children,node) 293 | self.current = node 294 | end 295 | obj.endtag = function(self,t,s) 296 | if t ~= self.current._name then 297 | error("XML Error - Unmatched Tag ["..s..":"..t.."]\n") 298 | end 299 | self.current = self.current._parent 300 | end 301 | obj.text = function(self,t) 302 | local node = { _type = "TEXT", 303 | _parent = self.current, 304 | _text = t } 305 | table.insert(self.current._children,node) 306 | end 307 | obj.comment = function(self,t) 308 | if self.options.commentNode then 309 | local node = { _type = "COMMENT", 310 | _parent = self.current, 311 | _text = t } 312 | table.insert(self.current._children,node) 313 | end 314 | end 315 | obj.pi = function(self,t,a) 316 | if self.options.piNode then 317 | local node = { _type = "PI", 318 | _name = t, 319 | _attr = a, 320 | _parent = self.current } 321 | table.insert(self.current._children,node) 322 | end 323 | end 324 | obj.decl = function(self,t,a) 325 | if self.options.declNode then 326 | local node = { _type = "DECL", 327 | _name = t, 328 | _attr = a, 329 | _parent = self.current } 330 | table.insert(self.current._children,node) 331 | end 332 | end 333 | obj.dtd = function(self,t,a) 334 | if self.options.dtdNode then 335 | local node = { _type = "DTD", 336 | _name = t, 337 | _attr = a, 338 | _parent = self.current } 339 | table.insert(self.current._children,node) 340 | end 341 | end 342 | obj.cdata = obj.text 343 | return obj 344 | end 345 | 346 | return { simpleTreeHandler = simpleTreeHandler } 347 | -------------------------------------------------------------------------------- /syncthing.koplugin/lib/xml.lua: -------------------------------------------------------------------------------- 1 | --- 2 | -- Overview: 3 | -- ========= 4 | -- 5 | -- This module provides a non-validating XML stream parser in Lua. 6 | -- 7 | -- Features: 8 | -- ========= 9 | -- 10 | -- * Tokenises well-formed XML (relatively robustly) 11 | -- * Flexible handler based event API (see below) 12 | -- * Parses all XML Infoset elements - ie. 13 | -- - Tags 14 | -- - Text 15 | -- - Comments 16 | -- - CDATA 17 | -- - XML Decl 18 | -- - Processing Instructions 19 | -- - DOCTYPE declarations 20 | -- * Provides limited well-formedness checking 21 | -- (checks for basic syntax & balanced tags only) 22 | -- * Flexible whitespace handling (selectable) 23 | -- * Entity Handling (selectable) 24 | -- 25 | -- Limitations: 26 | -- ============ 27 | -- 28 | -- * Non-validating 29 | -- * No charset handling 30 | -- * No namespace support 31 | -- * Shallow well-formedness checking only (fails 32 | -- to detect most semantic errors) 33 | -- 34 | -- API: 35 | -- ==== 36 | -- 37 | -- The parser provides a partially object-oriented API with 38 | -- functionality split into tokeniser and handler components. 39 | -- 40 | -- The handler instance is passed to the tokeniser and receives 41 | -- callbacks for each XML element processed (if a suitable handler 42 | -- function is defined). The API is conceptually similar to the 43 | -- SAX API but implemented differently. 44 | -- 45 | -- The following events are generated by the tokeniser 46 | -- 47 | -- handler:start - Start Tag 48 | -- handler:end - End Tag 49 | -- handler:text - Text 50 | -- handler:decl - XML Declaration 51 | -- handler:pi - Processing Instruction 52 | -- handler:comment - Comment 53 | -- handler:dtd - DOCTYPE definition 54 | -- handler:cdata - CDATA 55 | -- 56 | -- The function prototype for all the callback functions is 57 | -- 58 | -- callback(val,attrs,start,end) 59 | -- 60 | -- where attrs is a table and val/attrs are overloaded for 61 | -- specific callbacks - ie. 62 | -- 63 | -- Callback val attrs (table) 64 | -- -------- --- ------------- 65 | -- start name { attributes (name=val).. } 66 | -- end name nil 67 | -- text nil 68 | -- cdata nil 69 | -- decl "xml" { attributes (name=val).. } 70 | -- pi pi name { attributes (if present).. 71 | -- _text = 72 | -- } 73 | -- comment nil 74 | -- dtd root element { _root = , 75 | -- _type = SYSTEM|PUBLIC, 76 | -- _name = , 77 | -- _uri = , 78 | -- _internal = 79 | -- } 80 | -- 81 | -- (start & end provide the character positions of the start/end 82 | -- of the element) 83 | -- 84 | -- XML data is passed to the parser instance through the 'parse' 85 | -- method (Note: must be passed a single string currently) 86 | -- 87 | -- Options 88 | -- ======= 89 | -- 90 | -- Parser options are controlled through the 'self.options' table. 91 | -- Available options are - 92 | -- 93 | -- * stripWS 94 | -- 95 | -- Strip non-significant whitespace (leading/trailing) 96 | -- and do not generate events for empty text elements 97 | -- 98 | -- * expandEntities 99 | -- 100 | -- Expand entities (standard entities + single char 101 | -- numeric entities only currently - could be extended 102 | -- at runtime if suitable DTD parser added elements 103 | -- to table (see obj._ENTITIES). May also be possible 104 | -- to expand multibyre entities for UTF-8 only 105 | -- 106 | -- * errorHandler 107 | -- 108 | -- Custom error handler function 109 | -- 110 | -- NOTE: Boolean options must be set to 'nil' not '0' 111 | -- 112 | -- Usage 113 | -- ===== 114 | -- 115 | -- Create a handler instance - 116 | -- 117 | -- h = { start = function(t,a,s,e) .... end, 118 | -- end = function(t,a,s,e) .... end, 119 | -- text = function(t,a,s,e) .... end, 120 | -- cdata = text } 121 | -- 122 | -- (or use predefined handler - see handler.lua) 123 | -- 124 | -- Create parser instance - 125 | -- 126 | -- p = xmlParser(h) 127 | -- 128 | -- Set options - 129 | -- 130 | -- p.options.xxxx = nil 131 | -- 132 | -- Parse XML data - 133 | -- 134 | -- xmlParser:parse(" 157 | 158 | 159 | ---Parses a XML string 160 | --@param handler Handler object to be used to convert the XML string 161 | --to another formats. @see handler.lua 162 | local xmlParser = function(handler) 163 | local obj = {} 164 | -- Public attributes 165 | 166 | obj.options = { 167 | stripWS = 1, 168 | expandEntities = 1, 169 | errorHandler = function(err,pos) 170 | error(string.format("%s [char=%d]\n", 171 | err or "Parse Error",pos)) 172 | end, 173 | } 174 | 175 | -- Public methods 176 | 177 | obj.parse = function(self, str, parseAttributes) 178 | if parseAttributes == nil then 179 | parseAttributes = true 180 | end 181 | self._handler.parseAttributes = parseAttributes 182 | 183 | local match,endmatch,pos = 0,0,1 184 | local text,endt1,endt2,tagstr,tagname,attrs,starttext,endtext 185 | local errstart,errend,extstart,extend 186 | while match do 187 | -- Get next tag (first pass - fix exceptions below) 188 | match,endmatch,text,endt1,tagstr,endt2 = string.find(str,self._XML,pos) 189 | if not match then 190 | if string.find(str, self._WS,pos) then 191 | -- No more text - check document complete 192 | if #self._stack ~= 0 then 193 | self:_err(self._errstr.incompleteXmlErr,pos) 194 | else 195 | break 196 | end 197 | else 198 | -- Unparsable text 199 | self:_err(self._errstr.xmlErr,pos) 200 | end 201 | end 202 | -- Handle leading text 203 | starttext = match 204 | endtext = match + string.len(text) - 1 205 | match = match + string.len(text) 206 | text = self:_parseEntities(self:_stripWS(text)) 207 | if text ~= "" and self._handler.text then 208 | self._handler:text(text,nil,match,endtext) 209 | end 210 | -- Test for tag type 211 | if string.find(string.sub(tagstr,1,5),"?xml%s") then 212 | -- XML Declaration 213 | match,endmatch,text = string.find(str,self._PI,pos) 214 | if not match then 215 | self:_err(self._errstr.declErr,pos) 216 | end 217 | if match ~= 1 then 218 | -- Must be at start of doc if present 219 | self:_err(self._errstr.declStartErr,pos) 220 | end 221 | tagname,attrs = self:_parseTag(text) 222 | -- TODO: Check attributes are valid 223 | -- Check for version (mandatory) 224 | if attrs.version == nil then 225 | self:_err(self._errstr.declAttrErr,pos) 226 | end 227 | if self._handler.decl then 228 | self._handler:decl(tagname,attrs,match,endmatch) 229 | end 230 | elseif string.sub(tagstr,1,1) == "?" then 231 | -- Processing Instruction 232 | match,endmatch,text = string.find(str,self._PI,pos) 233 | if not match then 234 | self:_err(self._errstr.piErr,pos) 235 | end 236 | if self._handler.pi then 237 | -- Parse PI attributes & text 238 | tagname,attrs = self:_parseTag(text) 239 | local pi = string.sub(text,string.len(tagname)+1) 240 | if pi ~= "" then 241 | if attrs then 242 | attrs._text = pi 243 | else 244 | attrs = { _text = pi } 245 | end 246 | end 247 | self._handler:pi(tagname,attrs,match,endmatch) 248 | end 249 | elseif string.sub(tagstr,1,3) == "!--" then 250 | -- Comment 251 | match,endmatch,text = string.find(str,self._COMMENT,pos) 252 | if not match then 253 | self:_err(self._errstr.commentErr,pos) 254 | end 255 | if self._handler.comment then 256 | text = self:_parseEntities(self:_stripWS(text)) 257 | self._handler:comment(text,next,match,endmatch) 258 | end 259 | elseif string.sub(tagstr,1,8) == "!DOCTYPE" then 260 | -- DTD 261 | match,endmatch,attrs = self:_parseDTD(string,pos) 262 | if not match then 263 | self:_err(self._errstr.dtdErr,pos) 264 | end 265 | if self._handler.dtd then 266 | self._handler:dtd(attrs._root,attrs,match,endmatch) 267 | end 268 | elseif string.sub(tagstr,1,8) == "![CDATA[" then 269 | -- CDATA 270 | match,endmatch,text = string.find(str,self._CDATA,pos) 271 | if not match then 272 | self:_err(self._errstr.cdataErr,pos) 273 | end 274 | if self._handler.cdata then 275 | self._handler:cdata(text,nil,match,endmatch) 276 | end 277 | else 278 | -- Normal tag 279 | 280 | -- Need check for embedded '>' in attribute value and extend 281 | -- match recursively if necessary eg. 282 | 283 | while 1 do 284 | errstart,errend = string.find(tagstr,self._ATTRERR1) 285 | if errend == nil then 286 | errstart,errend = string.find(tagstr,self._ATTRERR2) 287 | if errend == nil then 288 | break 289 | end 290 | end 291 | extstart,extend,endt2 = string.find(str,self._TAGEXT,endmatch+1) 292 | tagstr = tagstr .. string.sub(string,endmatch,extend-1) 293 | if not match then 294 | self:_err(self._errstr.xmlErr,pos) 295 | end 296 | endmatch = extend 297 | end 298 | 299 | -- Extract tagname/attrs 300 | 301 | tagname,attrs = self:_parseTag(tagstr) 302 | 303 | if (endt1=="/") then 304 | -- End tag 305 | if self._handler.endtag then 306 | if attrs then 307 | -- Shouldnt have any attributes in endtag 308 | self:_err(string.format("%s (/%s)", 309 | self._errstr.endTagErr, 310 | tagname) 311 | ,pos) 312 | end 313 | if table.remove(self._stack) ~= tagname then 314 | self:_err(string.format("%s (/%s)", 315 | self._errstr.unmatchedTagErr, 316 | tagname) 317 | ,pos) 318 | end 319 | self._handler:endtag(tagname,nil,match,endmatch) 320 | end 321 | else 322 | -- Start Tag 323 | table.insert(self._stack,tagname) 324 | if self._handler.starttag then 325 | self._handler:starttag(tagname,attrs,match,endmatch) 326 | end 327 | --TODO: Tags com fechamento automático estão sendo 328 | --retornadas como uma tabela, o que complica 329 | --para a app NCLua tratar isso. É preciso 330 | --fazer com que seja retornado um campo string vazio. 331 | -- Self-Closing Tag 332 | if (endt2=="/") then 333 | table.remove(self._stack) 334 | if self._handler.endtag then 335 | self._handler:endtag(tagname,nil,match,endmatch) 336 | end 337 | end 338 | end 339 | end 340 | pos = endmatch + 1 341 | end 342 | end 343 | 344 | -- Private attribures/functions 345 | 346 | obj._handler = handler 347 | obj._stack = {} 348 | 349 | obj._XML = '^([^<]*)<(%/?)([^>]-)(%/?)>' 350 | obj._ATTR1 = '([%w-:_]+)%s*=%s*"(.-)"' 351 | obj._ATTR2 = '([%w-:_]+)%s*=%s*\'(.-)\'' 352 | obj._CDATA = '<%!%[CDATA%[(.-)%]%]>' 353 | obj._PI = '<%?(.-)%?>' 354 | obj._COMMENT = '' 355 | obj._TAG = '^(.-)%s.*' 356 | obj._LEADINGWS = '^%s+' 357 | obj._TRAILINGWS = '%s+$' 358 | obj._WS = '^%s*$' 359 | obj._DTD1 = '' 360 | obj._DTD2 = '' 361 | obj._DTD3 = '' 362 | obj._DTD4 = '' 363 | obj._DTD5 = '' 364 | 365 | obj._ATTRERR1 = '=%s*"[^"]*$' 366 | obj._ATTRERR2 = '=%s*\'[^\']*$' 367 | obj._TAGEXT = '(%/?)>' 368 | 369 | obj._ENTITIES = { ["<"] = "<", 370 | [">"] = ">", 371 | ["&"] = "&", 372 | ["""] = '"', 373 | ["'"] = "'", 374 | ["&#(%d+);"] = function (x) 375 | local d = tonumber(x) 376 | if d >= 0 and d < 256 then 377 | return string.char(d) 378 | else 379 | return "&#"..d..";" 380 | end 381 | end, 382 | ["&#x(%x+);"] = function (x) 383 | local d = tonumber(x,16) 384 | if d >= 0 and d < 256 then 385 | return string.char(d) 386 | else 387 | return "&#x"..x..";" 388 | end 389 | end, 390 | } 391 | 392 | obj._err = function(self,err,pos) 393 | if self.options.errorHandler then 394 | self.options.errorHandler(err,pos) 395 | end 396 | end 397 | 398 | obj._errstr = { xmlErr = "Error Parsing XML", 399 | declErr = "Error Parsing XMLDecl", 400 | declStartErr = "XMLDecl not at start of document", 401 | declAttrErr = "Invalid XMLDecl attributes", 402 | piErr = "Error Parsing Processing Instruction", 403 | commentErr = "Error Parsing Comment", 404 | cdataErr = "Error Parsing CDATA", 405 | dtdErr = "Error Parsing DTD", 406 | endTagErr = "End Tag Attributes Invalid", 407 | unmatchedTagErr = "Unbalanced Tag", 408 | incompleteXmlErr = "Incomplete XML Document", 409 | } 410 | 411 | obj._stripWS = function(self,s) 412 | if self.options.stripWS then 413 | s = string.gsub(s,'^%s+','') 414 | s = string.gsub(s,'%s+$','') 415 | end 416 | return s 417 | end 418 | 419 | obj._parseEntities = function(self,s) 420 | if self.options.expandEntities then 421 | --for k,v in self._ENTITIES do 422 | for k,v in pairs(self._ENTITIES) do 423 | --print (k, v) 424 | s = string.gsub(s,k,v) 425 | end 426 | end 427 | return s 428 | end 429 | 430 | obj._parseDTD = function(self,s,pos) 431 | -- match,endmatch,root,type,name,uri,internal 432 | local m,e,r,t,n,u,i 433 | m,e,r,t,u,i = string.find(s,self._DTD1,pos) 434 | if m then 435 | return m,e,{_root=r,_type=t,_uri=u,_internal=i} 436 | end 437 | m,e,r,t,n,u,i = string.find(s,self._DTD2,pos) 438 | if m then 439 | return m,e,{_root=r,_type=t,_name=n,_uri=u,_internal=i} 440 | end 441 | m,e,r,i = string.find(s,self._DTD3,pos) 442 | if m then 443 | return m,e,{_root=r,_internal=i} 444 | end 445 | m,e,r,t,u = string.find(s,self._DTD4,pos) 446 | if m then 447 | return m,e,{_root=r,_type=t,_uri=u} 448 | end 449 | m,e,r,t,n,u = string.find(s,self._DTD5,pos) 450 | if m then 451 | return m,e,{_root=r,_type=t,_name=n,_uri=u} 452 | end 453 | return nil 454 | end 455 | 456 | ---Parses a string representing a tag 457 | --@param s String containing tag text 458 | --@return Returns a string containing the tagname and a table attrs 459 | --containing the atributtes of tag 460 | obj._parseTag = function(self,s) 461 | local attrs = {} 462 | local tagname = string.gsub(s,self._TAG,'%1') 463 | string.gsub(s,self._ATTR1,function (k,v) 464 | attrs[string.lower(k)]=self:_parseEntities(v) 465 | attrs._ = 1 466 | end) 467 | string.gsub(s,self._ATTR2,function (k,v) 468 | attrs[string.lower(k)]=self:_parseEntities(v) 469 | attrs._ = 1 470 | end) 471 | if attrs._ then 472 | attrs._ = nil 473 | else 474 | attrs = nil 475 | end 476 | return tagname,attrs 477 | end 478 | 479 | return obj 480 | 481 | end 482 | 483 | return { xmlParser = xmlParser } 484 | -------------------------------------------------------------------------------- /syncthing.koplugin/main.lua: -------------------------------------------------------------------------------- 1 | local DataStorage = require("datastorage") 2 | local Device = require("device") 3 | local Dispatcher = require("dispatcher") 4 | local InfoMessage = require("ui/widget/infomessage") -- luacheck:ignore 5 | local QRMessage = require("ui/widget/qrmessage") 6 | local InputDialog = require("ui/widget/inputdialog") 7 | local UIManager = require("ui/uimanager") 8 | local WidgetContainer = require("ui/widget/container/widgetcontainer") 9 | local ffiutil = require("ffi/util") 10 | local logger = require("logger") 11 | local util = require("util") 12 | local _ = require("gettext") 13 | local http = require("socket.http") 14 | local ltn12 = require("ltn12") 15 | local socket = require("socket") 16 | local socketutil = require("socketutil") 17 | local JSON = require("json") 18 | local Font = require("ui/font") 19 | local random = require("random") 20 | local T = ffiutil.template 21 | 22 | local path = DataStorage:getFullDataDir() 23 | if not util.pathExists("dropbear") then 24 | return { disabled = true, } 25 | end 26 | 27 | local Syncthing = WidgetContainer:extend{ 28 | name = "Syncthing", 29 | is_doc_only = false, 30 | } 31 | 32 | local pid_path = "/tmp/syncthing_koreader.pid" 33 | local config_path = "settings/syncthing/config.xml" 34 | local device_id_path = "settings/syncthing/device-id" 35 | 36 | function Syncthing:init() 37 | self.syncthing_port = G_reader_settings:readSetting("syncthing_port") or "8384" 38 | self.ui.menu:registerToMainMenu(self) 39 | self:onDispatcherRegisterActions() 40 | end 41 | 42 | function Syncthing:start(password) 43 | if not password and not util.pathExists(config_path) then 44 | -- Use a random initial password to make sure GUI is inaccessible unless the 45 | -- user explicitly sets a password 46 | password = random.uuid() 47 | end 48 | local cmd = string.format("%s %s %s %s", 49 | "./plugins/syncthing.koplugin/start-syncthing", 50 | G_reader_settings:readSetting("home_dir"), 51 | self.syncthing_port, 52 | password or "") 53 | 54 | -- Start loopback interface so that we can access the Syncthing API later 55 | if Device:isKobo() then 56 | if os.execute("ifconfig lo up") ~= 0 then 57 | local info = InfoMessage:new{ 58 | icon = "notice-warning", 59 | text = _("Failed to start Syncthing."), 60 | } 61 | UIManager:show(info) 62 | return 63 | end 64 | end 65 | 66 | -- Make a hole in the Kindle's firewall 67 | if Device:isKindle() then 68 | os.execute(string.format("%s %s %s", 69 | "iptables -A INPUT -p tcp --dport", self.syncthing_port, 70 | "-m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT")) 71 | os.execute(string.format("%s %s %s", 72 | "iptables -A OUTPUT -p tcp --sport", self.syncthing_port, 73 | "-m conntrack --ctstate ESTABLISHED -j ACCEPT")) 74 | os.execute("iptables -A INPUT -i wlan0 -p tcp --dport 22000 -j ACCEPT") 75 | os.execute("iptables -A INPUT -i wlan0 -p udp --dport 22000 -j ACCEPT") 76 | os.execute("iptables -A INPUT -i wlan0 -p udp --dport 21027 -j ACCEPT") 77 | end 78 | 79 | if not util.pathExists(path.."/settings/syncthing/") then 80 | os.execute("mkdir "..path.."/settings/syncthing") 81 | end 82 | logger.dbg("[Syncthing] Launching Syncthing : ", cmd) 83 | if os.execute(cmd) == 0 then 84 | local info = InfoMessage:new{ 85 | timeout = 10, 86 | -- @translators: %1 is the Syncthing port, %2 is the network info. 87 | text = T(_("Syncthing started.\n\nSyncthing port: %1\n%2"), 88 | self.syncthing_port, 89 | Device.retrieveNetworkInfo and Device:retrieveNetworkInfo() or _("Could not retrieve network info.")), 90 | } 91 | UIManager:show(info) 92 | else 93 | local info = InfoMessage:new{ 94 | icon = "notice-warning", 95 | text = _("Failed to start Syncthing."), 96 | } 97 | UIManager:show(info) 98 | end 99 | end 100 | 101 | function Syncthing:isRunning() 102 | return util.pathExists(pid_path) 103 | end 104 | 105 | function Syncthing:stop() 106 | os.execute("cat "..pid_path.." | xargs kill") 107 | UIManager:show(InfoMessage:new { 108 | text = T(_("Syncthing stopped.")), 109 | timeout = 2, 110 | }) 111 | 112 | if self:isRunning() then 113 | os.remove(pid_path) 114 | end 115 | 116 | -- Plug the hole in the Kindle's firewall 117 | if Device:isKindle() then 118 | os.execute(string.format("%s %s %s", 119 | "iptables -D INPUT -p tcp --dport", self.syncthing_port, 120 | "-m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT")) 121 | os.execute(string.format("%s %s %s", 122 | "iptables -D OUTPUT -p tcp --sport", self.syncthing_port, 123 | "-m conntrack --ctstate ESTABLISHED -j ACCEPT")) 124 | os.execute("iptables -D INPUT -i wlan0 -p tcp --dport 22000 -j ACCEPT") 125 | os.execute("iptables -D INPUT -i wlan0 -p udp --dport 22000 -j ACCEPT") 126 | os.execute("iptables -D INPUT -i wlan0 -p udp --dport 21027 -j ACCEPT") 127 | end 128 | end 129 | 130 | function Syncthing:onToggleSyncthingServer() 131 | if self:isRunning() then 132 | self:stop() 133 | else 134 | self:start() 135 | end 136 | end 137 | 138 | function Syncthing:show_port_dialog(touchmenu_instance) 139 | self.port_dialog = InputDialog:new{ 140 | title = _("Choose Syncthing port"), 141 | input = self.syncthing_port, 142 | input_type = "number", 143 | input_hint = self.syncthing_port, 144 | buttons = { 145 | { 146 | { 147 | text = _("Cancel"), 148 | id = "close", 149 | callback = function() 150 | UIManager:close(self.port_dialog) 151 | end, 152 | }, 153 | { 154 | text = _("Save"), 155 | is_enter_default = true, 156 | callback = function() 157 | local value = tonumber(self.port_dialog:getInputText()) 158 | if value and value >= 0 then 159 | self.syncthing_port = value 160 | G_reader_settings:saveSetting("syncthing_port", self.syncthing_port) 161 | UIManager:close(self.port_dialog) 162 | touchmenu_instance:updateItems() 163 | end 164 | end, 165 | }, 166 | }, 167 | }, 168 | } 169 | UIManager:show(self.port_dialog) 170 | self.port_dialog:onShowKeyboard() 171 | end 172 | 173 | -- Function copied from newsdownloader.plugin 174 | function Syncthing:deserializeXMLString(xml_str) 175 | -- uses LuaXML https://github.com/manoelcampos/LuaXML 176 | -- The MIT License (MIT) 177 | -- Copyright (c) 2016 Manoel Campos da Silva Filho 178 | -- see: koreader/plugins/newsdownloader.koplugin/lib/LICENSE_LuaXML 179 | local treehdl = require("lib/handler") 180 | local libxml = require("lib/xml") 181 | -- Instantiate the object that parses the XML file as a Lua table. 182 | local xmlhandler = treehdl.simpleTreeHandler() 183 | 184 | -- Remove UTF-8 byte order mark, as it will cause LuaXML to fail 185 | xml_str = xml_str:gsub("^\xef\xbb\xbf", "", 1) 186 | 187 | -- Instantiate the object that parses the XML to a Lua table. 188 | local ok = pcall(function() 189 | libxml.xmlParser(xmlhandler):parse(xml_str) 190 | end) 191 | if not ok then return end 192 | return xmlhandler.root 193 | end 194 | 195 | function Syncthing:readConfig() 196 | local file = io.open(config_path, "r") 197 | if not file then return nil end 198 | local xml_str = file:read("a") 199 | file:close() 200 | 201 | return self:deserializeXMLString(xml_str) 202 | end 203 | 204 | function Syncthing:getDeviceId() 205 | local file = io.open(device_id_path, "r") 206 | if not file then return nil end 207 | local device_id = file:read("l") 208 | file:close() 209 | 210 | return device_id 211 | end 212 | 213 | function Syncthing:apiCall(api_path, method, source) 214 | local config = self:readConfig() 215 | if not config then 216 | error("Cannot extract API key") 217 | end 218 | local apiKey = config["configuration"]["gui"]["apikey"] 219 | 220 | if not method then 221 | method = "GET" 222 | end 223 | 224 | local url = string.format("http://127.0.0.1:%s/rest/%s", self.syncthing_port, api_path) 225 | 226 | logger.dbg("Syncthing: url:", url) 227 | local sink = {} 228 | socketutil:set_timeout(socketutil.LARGE_BLOCK_TIMEOUT, socketutil.LARGE_TOTAL_TIMEOUT) 229 | local code, headers, status = socket.skip(1, http.request({ 230 | url = url, 231 | method = method, 232 | source = source, 233 | sink = ltn12.sink.table(sink), 234 | headers = { 235 | ["X-API-Key"] = apiKey, 236 | ["Content-Type"] = "application/json" 237 | } 238 | })) 239 | socketutil:reset_timeout() 240 | 241 | if code ~= 200 then 242 | logger.dbg("Syncthing: HTTP response code <> 200. Response status:", status or code) 243 | logger.dbg("Syncthing: Response headers:", headers) 244 | local info = InfoMessage:new{ 245 | icon = "notice-warning", 246 | text = T(_("Syncthing error (%1)"), status or code), 247 | } 248 | UIManager:show(info) 249 | return nil 250 | end 251 | local str = table.concat(sink) 252 | local ok, result = pcall(JSON.decode, str) 253 | if not ok then 254 | return nil 255 | else 256 | return result 257 | end 258 | end 259 | 260 | function Syncthing:getStatusMenu() 261 | local config = self:apiCall("config") or {} 262 | local connections = self:apiCall("system/connections") or {} 263 | local device_stats = self:apiCall("stats/device") or {} 264 | local folder_stats = self:apiCall("stats/folder") or {} 265 | 266 | local function getDeviceName(device_id) 267 | for __, device in pairs(config["devices"] or {}) do 268 | if device["deviceID"] == device_id then 269 | return device["name"] 270 | end 271 | end 272 | return "" 273 | end 274 | 275 | local sub_item_table = {} 276 | 277 | table.insert(sub_item_table, { 278 | text = _("Folders"), 279 | enabled_func = function() return false end 280 | }) 281 | 282 | for __, folder in pairs(config["folders"] or {}) do 283 | local status = self:apiCall(string.format("db/status?folder=%s", folder["id"])) or {} 284 | local stat = folder_stats[folder["id"]] or {} 285 | 286 | local state = status["state"] 287 | if state == "idle" then 288 | state = _("up to date") 289 | end 290 | 291 | local devices = {} 292 | for ___, device in pairs(folder["devices"]) do 293 | table.insert(devices, "- "..getDeviceName(device["deviceID"])) 294 | end 295 | 296 | table.insert(sub_item_table, { 297 | text = T("%1: %2", folder["label"], state), 298 | keep_menu_open = true, 299 | callback = function() 300 | local info = InfoMessage:new{ 301 | face = Font:getFace("x_smallinfofont"), 302 | text = T(_("Folder ID: %1\nPath: %2\nErrors: %3\nLocal total items: %4\nNeed items: %5\nNeed bytes: %6\nLast scan: %7\nLast file: %8\nLast file at: %9\nDevices:\n%10"), 303 | folder["id"], 304 | folder["path"], 305 | status["errors"] or _("N/A"), 306 | status["localTotalItems"] or _("N/A"), 307 | status["needTotalItems"] or _("N/A"), 308 | status["needBytes"] or _("N/A"), 309 | stat["lastScan"] or _("N/A"), 310 | stat["lastFile"] and stat["lastFile"]["filename"] or _("N/A"), 311 | stat["lastFile"] and stat["lastFile"]["at"] or _("N/A"), 312 | table.concat(devices, "\n")), 313 | } 314 | UIManager:show(info) 315 | end 316 | }) 317 | end 318 | 319 | sub_item_table[#sub_item_table].separator = true 320 | 321 | table.insert(sub_item_table, { 322 | text = _("Remote Devices"), 323 | enabled_func = function() return false end 324 | }) 325 | 326 | for device_id, connection in pairs(connections["connections"] or {}) do 327 | local completion = self:apiCall(string.format("db/completion?device=%s", device_id)) or {} 328 | local percentage = (completion["completion"] and math.floor(completion["completion"]) or "").."%" 329 | 330 | local status 331 | if connection["connected"] then 332 | status = _("Connected") 333 | else 334 | local stat = device_stats[device_id] or {} 335 | status = T(_("Last seen %1"), string.sub(stat["lastSeen"] or "", 1, 16)) -- YYYY-MM-DDTHH:MM 336 | end 337 | 338 | table.insert(sub_item_table, { 339 | text = T("%1: %2, %3", 340 | getDeviceName(device_id), 341 | status, 342 | percentage), 343 | keep_menu_open = true, 344 | callback = function() 345 | local info = InfoMessage:new{ 346 | face = Font:getFace("x_smallinfofont"), 347 | text = T(_("Device ID: %1\nAddress: %2\nConnected since: %3\nPaused: %4\nNeed items: %5\nNeed bytes: %6"), 348 | device_id, 349 | connection["connected"] and connection["address"] or _("N/A"), 350 | connection["connected"] and connection["startedAt"] or _("N/A"), 351 | connection["paused"] and _("Yes") or _("No"), 352 | completion["need_items"] or _("N/A"), 353 | completion["need_bytes"] or _("N/A")), 354 | } 355 | UIManager:show(info) 356 | end 357 | }) 358 | end 359 | 360 | return sub_item_table 361 | end 362 | 363 | function Syncthing:getPendingMenu() 364 | local devices = self:apiCall("cluster/pending/devices") or {} 365 | local folders = self:apiCall("cluster/pending/folders") or {} 366 | 367 | local sub_item_table = {} 368 | 369 | table.insert(sub_item_table, { 370 | text = #devices and _("Pending Devices") or _("No Pending Devices"), 371 | enabled_func = function() return false end 372 | }) 373 | 374 | for device_id, device in pairs(devices) do 375 | table.insert(sub_item_table, { 376 | text = T("%1 (%2)", device["name"], device_id), 377 | callback = function() 378 | local dialog 379 | dialog = InputDialog:new{ 380 | title = T(_("Add Device\n%1?"), device_id), 381 | input = device["name"], 382 | input_type = "string", 383 | buttons = { 384 | { 385 | { 386 | text = _("Cancel"), 387 | id = "close", 388 | callback = function() 389 | UIManager:close(dialog) 390 | end, 391 | }, 392 | { 393 | text = _("Add"), 394 | is_enter_default = true, 395 | callback = function() 396 | local body = ltn12.source.string(JSON.encode({ 397 | deviceID = device_id, 398 | name = dialog:getInputText(), 399 | _editing = "new-pending" 400 | })) 401 | self:apiCall("config/devices", "POST", body) 402 | 403 | UIManager:close(dialog) 404 | end, 405 | }, 406 | }, 407 | }, 408 | } 409 | UIManager:show(dialog) 410 | end 411 | }) 412 | end 413 | 414 | sub_item_table[#sub_item_table].separator = true 415 | 416 | table.insert(sub_item_table, { 417 | text = #folders and _("Pending Folders") or _("No Pending Folders"), 418 | enabled_func = function() return false end 419 | }) 420 | 421 | for folder_id, offerers in pairs(folders) do 422 | local offerer, folder = pairs(offerers["offeredBy"])(offerers["offeredBy"]) 423 | table.insert(sub_item_table, { 424 | text = T("%1 (From %2)", folder["label"], offerer), 425 | callback = function() 426 | local dialog 427 | dialog = InputDialog:new{ 428 | title = T(_("Add Folder %1?"), folder["label"]), 429 | input = string.format("%s/%s", 430 | G_reader_settings:readSetting("home_dir"), 431 | folder["label"]), 432 | input_type = "string", 433 | buttons = { 434 | { 435 | { 436 | text = _("Cancel"), 437 | id = "close", 438 | callback = function() 439 | UIManager:close(dialog) 440 | end, 441 | }, 442 | { 443 | text = _("Add"), 444 | is_enter_default = true, 445 | callback = function() 446 | local body = ltn12.source.string(JSON.encode({ 447 | id = folder_id, 448 | label = folder["label"], 449 | filesystemType = "basic", 450 | path = dialog:getInputText(), 451 | type = "sendreceive", 452 | devices = { 453 | { 454 | deviceID = self:getDeviceId(), 455 | introducedBy = "" 456 | }, 457 | { 458 | deviceID = offerer 459 | } 460 | }, 461 | _editing = "new-pending" 462 | })) 463 | self:apiCall("config/folders", "POST", body) 464 | 465 | UIManager:close(dialog) 466 | end, 467 | }, 468 | }, 469 | }, 470 | } 471 | UIManager:show(dialog) 472 | end 473 | }) 474 | end 475 | 476 | return sub_item_table 477 | end 478 | 479 | function Syncthing:addToMainMenu(menu_items) 480 | menu_items.syncthing = { 481 | text = _("Syncthing"), 482 | sub_item_table = { 483 | { 484 | text = _("Syncthing"), 485 | keep_menu_open = true, 486 | checked_func = function() return self:isRunning() end, 487 | callback = function(touchmenu_instance) 488 | self:onToggleSyncthingServer() 489 | touchmenu_instance:updateItems() 490 | end, 491 | }, 492 | { 493 | text_func = function() 494 | return T(_("Syncthing Port: %1"), self.syncthing_port) 495 | end, 496 | keep_menu_open = true, 497 | enabled_func = function() return not self:isRunning() end, 498 | callback = function(touchmenu_instance) 499 | self:show_port_dialog(touchmenu_instance) 500 | end, 501 | }, 502 | { 503 | text = _("Syncthing Web GUI"), 504 | keep_menu_open = true, 505 | enabled_func = function() return self:isRunning() end, 506 | callback = function() 507 | local info = InfoMessage:new{ 508 | timeout = 60, 509 | text = T(_("Connect to port %1 for web GUI\nYou must set a password first! Default username: syncthing\n\n%2"), 510 | self.syncthing_port, 511 | Device.retrieveNetworkInfo and Device:retrieveNetworkInfo() or _("Could not retrieve network info.")), 512 | } 513 | UIManager:show(info) 514 | end, 515 | }, 516 | { 517 | text = _("Set GUI Password"), 518 | keep_menu_open = true, 519 | enabled_func = function() return not self:isRunning() end, 520 | separator = true, 521 | callback = function(touchmenu_instance) 522 | local dialog 523 | dialog = InputDialog:new{ 524 | title = _("Set GUI Password"), 525 | input = "", 526 | text_type = "password", 527 | buttons = { 528 | { 529 | { 530 | text = _("Cancel"), 531 | id = "close", 532 | callback = function() 533 | UIManager:close(dialog) 534 | end, 535 | }, 536 | { 537 | text = _("Set"), 538 | is_enter_default = true, 539 | callback = function() 540 | if not dialog:getInputText() then 541 | return 542 | end 543 | self:start(dialog:getInputText()) 544 | touchmenu_instance:updateItems() 545 | 546 | UIManager:close(dialog) 547 | end, 548 | }, 549 | }, 550 | }, 551 | } 552 | UIManager:show(dialog) 553 | end, 554 | }, 555 | { 556 | text_func = function() 557 | local device_id = self:getDeviceId() 558 | return T(_("Device ID: %1"), device_id or "Unknown") 559 | end, 560 | keep_menu_open = true, 561 | callback = function() 562 | local device_id = self:getDeviceId() 563 | 564 | local info = InfoMessage:new{ 565 | timeout = 60, 566 | text = device_id or "Unknown" 567 | } 568 | UIManager:show(info) 569 | end, 570 | }, 571 | { 572 | text = _("Show QR Code"), 573 | keep_menu_open = true, 574 | callback = function() 575 | local device_id = self:getDeviceId() 576 | 577 | if device_id then 578 | local info = QRMessage:new{ 579 | text = device_id, 580 | width = Device.screen:getWidth(), 581 | height = Device.screen:getHeight() 582 | } 583 | UIManager:show(info) 584 | end 585 | end, 586 | }, 587 | { 588 | text = _("Status"), 589 | keep_menu_open = true, 590 | enabled_func = function() return self:isRunning() end, 591 | sub_item_table_func = function() 592 | return self:getStatusMenu() 593 | end, 594 | }, 595 | { 596 | text = _("Pending"), 597 | keep_menu_open = true, 598 | enabled_func = function() return self:isRunning() end, 599 | sub_item_table_func = function() 600 | return self:getPendingMenu() 601 | end, 602 | }, 603 | } 604 | } 605 | end 606 | 607 | function Syncthing:onDispatcherRegisterActions() 608 | Dispatcher:registerAction("toggle_syncthing_server", { category = "none", event = "ToggleSyncthingServer", title = _("Toggle Syncthing"), general=true}) 609 | end 610 | 611 | require("insert_menu") 612 | 613 | return Syncthing 614 | -------------------------------------------------------------------------------- /syncthing.koplugin/start-syncthing: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | set -e 3 | 4 | # Save config and data under the KOReader runtime directory 5 | config_dir=settings/syncthing 6 | syncthing=plugins/syncthing.koplugin/syncthing 7 | pid_file=/tmp/syncthing_koreader.pid 8 | 9 | if [ -n "$1" ]; then 10 | home_dir=$1 11 | else 12 | home_dir=/ 13 | fi 14 | 15 | 16 | if [ -n "$2" ]; then 17 | port=$2 18 | else 19 | port=8384 20 | fi 21 | 22 | if [ -n "$3" ]; then 23 | password=$3 24 | fi 25 | 26 | if [ ! -f "$config_dir/config.xml" ] || [ -n "$password" ]; then 27 | echo "Generating Syncthing configuration..." 28 | # Set HOME so that the default folder is created at $home_dir/Sync 29 | HOME=$home_dir "$syncthing" generate \ 30 | --config="$config_dir" \ 31 | --gui-user=syncthing \ 32 | --gui-password="$password" \ 33 | --skip-port-probing # Need this due to lack of IPv4 loopback in Kobo 34 | fi 35 | 36 | if [ ! -f "$config_dir/device-id" ]; then 37 | # Save the device ID to a file for easy access from KOReader 38 | "$syncthing" \ 39 | --config="$config_dir" \ 40 | --data="$config_dir" \ 41 | --device-id > "$config_dir/device-id" 42 | fi 43 | 44 | # We need to listen to 0.0.0.0 so that the GUI is accessible over the network 45 | "$syncthing" serve \ 46 | --config="$config_dir" \ 47 | --data="$config_dir" \ 48 | --gui-address=http://0.0.0.0:$port \ 49 | --logfile="$config_dir/logs" \ 50 | --log-max-old-files=10 \ 51 | --log-max-size=1048576 & 52 | 53 | # Write the PID to be used for stopping Syncthing later 54 | echo $! > "$pid_file" 55 | -------------------------------------------------------------------------------- /syncthing.koplugin/syncthing: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jasonchoimtt/koreader-syncthing/2e2827f1bb381af6db7af249d352e3b5133fc61c/syncthing.koplugin/syncthing --------------------------------------------------------------------------------