aria2-feeder: Solo usar una shell
This commit is contained in:
parent
9dd10752d1
commit
f6fb1e8177
6 changed files with 601 additions and 15 deletions
|
|
@ -39,7 +39,7 @@ if test -f lista-paginas.zst; then
|
|||
echo "Son $(cat lista-paginas | wc -l) páginas."
|
||||
echo "> Alimentando a aria2..."
|
||||
cd aria2-feeder/
|
||||
lua feed-aria2.lua ../lista-paginas localhost:6850
|
||||
lua feed-aria2.lua ../lista-paginas localhost:6850 | busybox ash -e
|
||||
echo "Terminé de alimentar. ¡Suerte!"
|
||||
else
|
||||
echo "No tengo ninguna lista para descargar. ¡Chau!"
|
||||
|
|
|
|||
|
|
@ -3,8 +3,6 @@ Le inserta urls a [aria2](https://aria2.github.io) via su interfaz JSON RPC (via
|
|||
## Usar
|
||||
|
||||
```sh
|
||||
# Para una URL
|
||||
./feed-aria2.sh "https://URL" "localhost:6800"
|
||||
# Para un archivo con una URL por línea
|
||||
lua feed-aria2.lua "archivo" "localhost:6800"
|
||||
lua feed-aria2.lua "archivo" "localhost:6800" | sh
|
||||
```
|
||||
|
|
|
|||
201
aria2-feeder/base64.lua
Normal file
201
aria2-feeder/base64.lua
Normal file
|
|
@ -0,0 +1,201 @@
|
|||
--[[
|
||||
|
||||
base64 -- v1.5.3 public domain Lua base64 encoder/decoder
|
||||
no warranty implied; use at your own risk
|
||||
|
||||
Needs bit32.extract function. If not present it's implemented using BitOp
|
||||
or Lua 5.3 native bit operators. For Lua 5.1 fallbacks to pure Lua
|
||||
implementation inspired by Rici Lake's post:
|
||||
http://ricilake.blogspot.co.uk/2007/10/iterating-bits-in-lua.html
|
||||
|
||||
author: Ilya Kolbin (iskolbin@gmail.com)
|
||||
url: github.com/iskolbin/lbase64
|
||||
|
||||
COMPATIBILITY
|
||||
|
||||
Lua 5.1+, LuaJIT
|
||||
|
||||
LICENSE
|
||||
|
||||
See end of file for license information.
|
||||
|
||||
--]]
|
||||
|
||||
|
||||
local base64 = {}
|
||||
|
||||
local extract = _G.bit32 and _G.bit32.extract -- Lua 5.2/Lua 5.3 in compatibility mode
|
||||
if not extract then
|
||||
if _G.bit then -- LuaJIT
|
||||
local shl, shr, band = _G.bit.lshift, _G.bit.rshift, _G.bit.band
|
||||
extract = function( v, from, width )
|
||||
return band( shr( v, from ), shl( 1, width ) - 1 )
|
||||
end
|
||||
elseif _G._VERSION == "Lua 5.1" then
|
||||
extract = function( v, from, width )
|
||||
local w = 0
|
||||
local flag = 2^from
|
||||
for i = 0, width-1 do
|
||||
local flag2 = flag + flag
|
||||
if v % flag2 >= flag then
|
||||
w = w + 2^i
|
||||
end
|
||||
flag = flag2
|
||||
end
|
||||
return w
|
||||
end
|
||||
else -- Lua 5.3+
|
||||
extract = load[[return function( v, from, width )
|
||||
return ( v >> from ) & ((1 << width) - 1)
|
||||
end]]()
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
function base64.makeencoder( s62, s63, spad )
|
||||
local encoder = {}
|
||||
for b64code, char in pairs{[0]='A','B','C','D','E','F','G','H','I','J',
|
||||
'K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y',
|
||||
'Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n',
|
||||
'o','p','q','r','s','t','u','v','w','x','y','z','0','1','2',
|
||||
'3','4','5','6','7','8','9',s62 or '+',s63 or'/',spad or'='} do
|
||||
encoder[b64code] = char:byte()
|
||||
end
|
||||
return encoder
|
||||
end
|
||||
|
||||
function base64.makedecoder( s62, s63, spad )
|
||||
local decoder = {}
|
||||
for b64code, charcode in pairs( base64.makeencoder( s62, s63, spad )) do
|
||||
decoder[charcode] = b64code
|
||||
end
|
||||
return decoder
|
||||
end
|
||||
|
||||
local DEFAULT_ENCODER = base64.makeencoder()
|
||||
local DEFAULT_DECODER = base64.makedecoder()
|
||||
|
||||
local char, concat = string.char, table.concat
|
||||
|
||||
function base64.encode( str, encoder, usecaching )
|
||||
encoder = encoder or DEFAULT_ENCODER
|
||||
local t, k, n = {}, 1, #str
|
||||
local lastn = n % 3
|
||||
local cache = {}
|
||||
for i = 1, n-lastn, 3 do
|
||||
local a, b, c = str:byte( i, i+2 )
|
||||
local v = a*0x10000 + b*0x100 + c
|
||||
local s
|
||||
if usecaching then
|
||||
s = cache[v]
|
||||
if not s then
|
||||
s = char(encoder[extract(v,18,6)], encoder[extract(v,12,6)], encoder[extract(v,6,6)], encoder[extract(v,0,6)])
|
||||
cache[v] = s
|
||||
end
|
||||
else
|
||||
s = char(encoder[extract(v,18,6)], encoder[extract(v,12,6)], encoder[extract(v,6,6)], encoder[extract(v,0,6)])
|
||||
end
|
||||
t[k] = s
|
||||
k = k + 1
|
||||
end
|
||||
if lastn == 2 then
|
||||
local a, b = str:byte( n-1, n )
|
||||
local v = a*0x10000 + b*0x100
|
||||
t[k] = char(encoder[extract(v,18,6)], encoder[extract(v,12,6)], encoder[extract(v,6,6)], encoder[64])
|
||||
elseif lastn == 1 then
|
||||
local v = str:byte( n )*0x10000
|
||||
t[k] = char(encoder[extract(v,18,6)], encoder[extract(v,12,6)], encoder[64], encoder[64])
|
||||
end
|
||||
return concat( t )
|
||||
end
|
||||
|
||||
function base64.decode( b64, decoder, usecaching )
|
||||
decoder = decoder or DEFAULT_DECODER
|
||||
local pattern = '[^%w%+%/%=]'
|
||||
if decoder then
|
||||
local s62, s63
|
||||
for charcode, b64code in pairs( decoder ) do
|
||||
if b64code == 62 then s62 = charcode
|
||||
elseif b64code == 63 then s63 = charcode
|
||||
end
|
||||
end
|
||||
pattern = ('[^%%w%%%s%%%s%%=]'):format( char(s62), char(s63) )
|
||||
end
|
||||
b64 = b64:gsub( pattern, '' )
|
||||
local cache = usecaching and {}
|
||||
local t, k = {}, 1
|
||||
local n = #b64
|
||||
local padding = b64:sub(-2) == '==' and 2 or b64:sub(-1) == '=' and 1 or 0
|
||||
for i = 1, padding > 0 and n-4 or n, 4 do
|
||||
local a, b, c, d = b64:byte( i, i+3 )
|
||||
local s
|
||||
if usecaching then
|
||||
local v0 = a*0x1000000 + b*0x10000 + c*0x100 + d
|
||||
s = cache[v0]
|
||||
if not s then
|
||||
local v = decoder[a]*0x40000 + decoder[b]*0x1000 + decoder[c]*0x40 + decoder[d]
|
||||
s = char( extract(v,16,8), extract(v,8,8), extract(v,0,8))
|
||||
cache[v0] = s
|
||||
end
|
||||
else
|
||||
local v = decoder[a]*0x40000 + decoder[b]*0x1000 + decoder[c]*0x40 + decoder[d]
|
||||
s = char( extract(v,16,8), extract(v,8,8), extract(v,0,8))
|
||||
end
|
||||
t[k] = s
|
||||
k = k + 1
|
||||
end
|
||||
if padding == 1 then
|
||||
local a, b, c = b64:byte( n-3, n-1 )
|
||||
local v = decoder[a]*0x40000 + decoder[b]*0x1000 + decoder[c]*0x40
|
||||
t[k] = char( extract(v,16,8), extract(v,8,8))
|
||||
elseif padding == 2 then
|
||||
local a, b = b64:byte( n-3, n-2 )
|
||||
local v = decoder[a]*0x40000 + decoder[b]*0x1000
|
||||
t[k] = char( extract(v,16,8))
|
||||
end
|
||||
return concat( t )
|
||||
end
|
||||
|
||||
return base64
|
||||
|
||||
--[[
|
||||
------------------------------------------------------------------------------
|
||||
This software is available under 2 licenses -- choose whichever you prefer.
|
||||
------------------------------------------------------------------------------
|
||||
ALTERNATIVE A - MIT License
|
||||
Copyright (c) 2018 Ilya Kolbin
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
------------------------------------------------------------------------------
|
||||
ALTERNATIVE B - Public Domain (www.unlicense.org)
|
||||
This is free and unencumbered software released into the public domain.
|
||||
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
|
||||
software, either in source code form or as a compiled binary, for any purpose,
|
||||
commercial or non-commercial, and by any means.
|
||||
In jurisdictions that recognize copyright laws, the author or authors of this
|
||||
software dedicate any and all copyright interest in the software to the public
|
||||
domain. We make this dedication for the benefit of the public at large and to
|
||||
the detriment of our heirs and successors. We intend this dedication to be an
|
||||
overt act of relinquishment in perpetuity of all present and future rights to
|
||||
this software under copyright law.
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
------------------------------------------------------------------------------
|
||||
--]]
|
||||
|
|
@ -1,3 +1,6 @@
|
|||
local base64 = require "base64"
|
||||
local json = require "json"
|
||||
|
||||
local file = arg[1]
|
||||
local handle = io.open(file)
|
||||
|
||||
|
|
@ -9,10 +12,12 @@ end
|
|||
while 1 do
|
||||
local line = handle:read("*l")
|
||||
if not line then break end
|
||||
local result = os.execute("./feed-aria2.sh '"..line.."' '"..rpc.."'")
|
||||
if not result == 0 then
|
||||
print("¡Hubo un error!")
|
||||
return
|
||||
end
|
||||
|
||||
local params = json.encode({{ line }, { header = { "accept-encoding: gzip, br" } }})
|
||||
local b64params = base64.encode(params)
|
||||
|
||||
local id = math.random(1, 99999999)
|
||||
|
||||
print("curl -q '"..rpc.."/jsonrpc?method=aria2.addUri&id="..id.."¶ms="..b64params.."' >/dev/null 2>/dev/null")
|
||||
end
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +0,0 @@
|
|||
#!/bin/busybox ash
|
||||
set -e
|
||||
|
||||
params=$(echo -n "[[\"$1\"],{\"header\":[\"accept-encoding: gzip, br\"]}]" | base64 -w0)
|
||||
id=$(echo "$RANDOM * $RANDOM" | bc)
|
||||
curl -q "$2/jsonrpc?method=aria2.addUri&id=$id¶ms=$params" >/dev/null 2>/dev/null
|
||||
388
aria2-feeder/json.lua
Normal file
388
aria2-feeder/json.lua
Normal file
|
|
@ -0,0 +1,388 @@
|
|||
--
|
||||
-- json.lua
|
||||
--
|
||||
-- Copyright (c) 2020 rxi
|
||||
--
|
||||
-- Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
-- this software and associated documentation files (the "Software"), to deal in
|
||||
-- the Software without restriction, including without limitation the rights to
|
||||
-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
-- of the Software, and to permit persons to whom the Software is furnished to do
|
||||
-- so, subject to the following conditions:
|
||||
--
|
||||
-- The above copyright notice and this permission notice shall be included in all
|
||||
-- copies or substantial portions of the Software.
|
||||
--
|
||||
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
-- SOFTWARE.
|
||||
--
|
||||
|
||||
local json = { _version = "0.1.2" }
|
||||
|
||||
-------------------------------------------------------------------------------
|
||||
-- Encode
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
local encode
|
||||
|
||||
local escape_char_map = {
|
||||
[ "\\" ] = "\\",
|
||||
[ "\"" ] = "\"",
|
||||
[ "\b" ] = "b",
|
||||
[ "\f" ] = "f",
|
||||
[ "\n" ] = "n",
|
||||
[ "\r" ] = "r",
|
||||
[ "\t" ] = "t",
|
||||
}
|
||||
|
||||
local escape_char_map_inv = { [ "/" ] = "/" }
|
||||
for k, v in pairs(escape_char_map) do
|
||||
escape_char_map_inv[v] = k
|
||||
end
|
||||
|
||||
|
||||
local function escape_char(c)
|
||||
return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
|
||||
end
|
||||
|
||||
|
||||
local function encode_nil(val)
|
||||
return "null"
|
||||
end
|
||||
|
||||
|
||||
local function encode_table(val, stack)
|
||||
local res = {}
|
||||
stack = stack or {}
|
||||
|
||||
-- Circular reference?
|
||||
if stack[val] then error("circular reference") end
|
||||
|
||||
stack[val] = true
|
||||
|
||||
if rawget(val, 1) ~= nil or next(val) == nil then
|
||||
-- Treat as array -- check keys are valid and it is not sparse
|
||||
local n = 0
|
||||
for k in pairs(val) do
|
||||
if type(k) ~= "number" then
|
||||
error("invalid table: mixed or invalid key types")
|
||||
end
|
||||
n = n + 1
|
||||
end
|
||||
if n ~= #val then
|
||||
error("invalid table: sparse array")
|
||||
end
|
||||
-- Encode
|
||||
for i, v in ipairs(val) do
|
||||
table.insert(res, encode(v, stack))
|
||||
end
|
||||
stack[val] = nil
|
||||
return "[" .. table.concat(res, ",") .. "]"
|
||||
|
||||
else
|
||||
-- Treat as an object
|
||||
for k, v in pairs(val) do
|
||||
if type(k) ~= "string" then
|
||||
error("invalid table: mixed or invalid key types")
|
||||
end
|
||||
table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
|
||||
end
|
||||
stack[val] = nil
|
||||
return "{" .. table.concat(res, ",") .. "}"
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
local function encode_string(val)
|
||||
return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
|
||||
end
|
||||
|
||||
|
||||
local function encode_number(val)
|
||||
-- Check for NaN, -inf and inf
|
||||
if val ~= val or val <= -math.huge or val >= math.huge then
|
||||
error("unexpected number value '" .. tostring(val) .. "'")
|
||||
end
|
||||
return string.format("%.14g", val)
|
||||
end
|
||||
|
||||
|
||||
local type_func_map = {
|
||||
[ "nil" ] = encode_nil,
|
||||
[ "table" ] = encode_table,
|
||||
[ "string" ] = encode_string,
|
||||
[ "number" ] = encode_number,
|
||||
[ "boolean" ] = tostring,
|
||||
}
|
||||
|
||||
|
||||
encode = function(val, stack)
|
||||
local t = type(val)
|
||||
local f = type_func_map[t]
|
||||
if f then
|
||||
return f(val, stack)
|
||||
end
|
||||
error("unexpected type '" .. t .. "'")
|
||||
end
|
||||
|
||||
|
||||
function json.encode(val)
|
||||
return ( encode(val) )
|
||||
end
|
||||
|
||||
|
||||
-------------------------------------------------------------------------------
|
||||
-- Decode
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
local parse
|
||||
|
||||
local function create_set(...)
|
||||
local res = {}
|
||||
for i = 1, select("#", ...) do
|
||||
res[ select(i, ...) ] = true
|
||||
end
|
||||
return res
|
||||
end
|
||||
|
||||
local space_chars = create_set(" ", "\t", "\r", "\n")
|
||||
local delim_chars = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
|
||||
local escape_chars = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
|
||||
local literals = create_set("true", "false", "null")
|
||||
|
||||
local literal_map = {
|
||||
[ "true" ] = true,
|
||||
[ "false" ] = false,
|
||||
[ "null" ] = nil,
|
||||
}
|
||||
|
||||
|
||||
local function next_char(str, idx, set, negate)
|
||||
for i = idx, #str do
|
||||
if set[str:sub(i, i)] ~= negate then
|
||||
return i
|
||||
end
|
||||
end
|
||||
return #str + 1
|
||||
end
|
||||
|
||||
|
||||
local function decode_error(str, idx, msg)
|
||||
local line_count = 1
|
||||
local col_count = 1
|
||||
for i = 1, idx - 1 do
|
||||
col_count = col_count + 1
|
||||
if str:sub(i, i) == "\n" then
|
||||
line_count = line_count + 1
|
||||
col_count = 1
|
||||
end
|
||||
end
|
||||
error( string.format("%s at line %d col %d", msg, line_count, col_count) )
|
||||
end
|
||||
|
||||
|
||||
local function codepoint_to_utf8(n)
|
||||
-- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
|
||||
local f = math.floor
|
||||
if n <= 0x7f then
|
||||
return string.char(n)
|
||||
elseif n <= 0x7ff then
|
||||
return string.char(f(n / 64) + 192, n % 64 + 128)
|
||||
elseif n <= 0xffff then
|
||||
return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
|
||||
elseif n <= 0x10ffff then
|
||||
return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
|
||||
f(n % 4096 / 64) + 128, n % 64 + 128)
|
||||
end
|
||||
error( string.format("invalid unicode codepoint '%x'", n) )
|
||||
end
|
||||
|
||||
|
||||
local function parse_unicode_escape(s)
|
||||
local n1 = tonumber( s:sub(1, 4), 16 )
|
||||
local n2 = tonumber( s:sub(7, 10), 16 )
|
||||
-- Surrogate pair?
|
||||
if n2 then
|
||||
return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
|
||||
else
|
||||
return codepoint_to_utf8(n1)
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
local function parse_string(str, i)
|
||||
local res = ""
|
||||
local j = i + 1
|
||||
local k = j
|
||||
|
||||
while j <= #str do
|
||||
local x = str:byte(j)
|
||||
|
||||
if x < 32 then
|
||||
decode_error(str, j, "control character in string")
|
||||
|
||||
elseif x == 92 then -- `\`: Escape
|
||||
res = res .. str:sub(k, j - 1)
|
||||
j = j + 1
|
||||
local c = str:sub(j, j)
|
||||
if c == "u" then
|
||||
local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
|
||||
or str:match("^%x%x%x%x", j + 1)
|
||||
or decode_error(str, j - 1, "invalid unicode escape in string")
|
||||
res = res .. parse_unicode_escape(hex)
|
||||
j = j + #hex
|
||||
else
|
||||
if not escape_chars[c] then
|
||||
decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
|
||||
end
|
||||
res = res .. escape_char_map_inv[c]
|
||||
end
|
||||
k = j + 1
|
||||
|
||||
elseif x == 34 then -- `"`: End of string
|
||||
res = res .. str:sub(k, j - 1)
|
||||
return res, j + 1
|
||||
end
|
||||
|
||||
j = j + 1
|
||||
end
|
||||
|
||||
decode_error(str, i, "expected closing quote for string")
|
||||
end
|
||||
|
||||
|
||||
local function parse_number(str, i)
|
||||
local x = next_char(str, i, delim_chars)
|
||||
local s = str:sub(i, x - 1)
|
||||
local n = tonumber(s)
|
||||
if not n then
|
||||
decode_error(str, i, "invalid number '" .. s .. "'")
|
||||
end
|
||||
return n, x
|
||||
end
|
||||
|
||||
|
||||
local function parse_literal(str, i)
|
||||
local x = next_char(str, i, delim_chars)
|
||||
local word = str:sub(i, x - 1)
|
||||
if not literals[word] then
|
||||
decode_error(str, i, "invalid literal '" .. word .. "'")
|
||||
end
|
||||
return literal_map[word], x
|
||||
end
|
||||
|
||||
|
||||
local function parse_array(str, i)
|
||||
local res = {}
|
||||
local n = 1
|
||||
i = i + 1
|
||||
while 1 do
|
||||
local x
|
||||
i = next_char(str, i, space_chars, true)
|
||||
-- Empty / end of array?
|
||||
if str:sub(i, i) == "]" then
|
||||
i = i + 1
|
||||
break
|
||||
end
|
||||
-- Read token
|
||||
x, i = parse(str, i)
|
||||
res[n] = x
|
||||
n = n + 1
|
||||
-- Next token
|
||||
i = next_char(str, i, space_chars, true)
|
||||
local chr = str:sub(i, i)
|
||||
i = i + 1
|
||||
if chr == "]" then break end
|
||||
if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
|
||||
end
|
||||
return res, i
|
||||
end
|
||||
|
||||
|
||||
local function parse_object(str, i)
|
||||
local res = {}
|
||||
i = i + 1
|
||||
while 1 do
|
||||
local key, val
|
||||
i = next_char(str, i, space_chars, true)
|
||||
-- Empty / end of object?
|
||||
if str:sub(i, i) == "}" then
|
||||
i = i + 1
|
||||
break
|
||||
end
|
||||
-- Read key
|
||||
if str:sub(i, i) ~= '"' then
|
||||
decode_error(str, i, "expected string for key")
|
||||
end
|
||||
key, i = parse(str, i)
|
||||
-- Read ':' delimiter
|
||||
i = next_char(str, i, space_chars, true)
|
||||
if str:sub(i, i) ~= ":" then
|
||||
decode_error(str, i, "expected ':' after key")
|
||||
end
|
||||
i = next_char(str, i + 1, space_chars, true)
|
||||
-- Read value
|
||||
val, i = parse(str, i)
|
||||
-- Set
|
||||
res[key] = val
|
||||
-- Next token
|
||||
i = next_char(str, i, space_chars, true)
|
||||
local chr = str:sub(i, i)
|
||||
i = i + 1
|
||||
if chr == "}" then break end
|
||||
if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
|
||||
end
|
||||
return res, i
|
||||
end
|
||||
|
||||
|
||||
local char_func_map = {
|
||||
[ '"' ] = parse_string,
|
||||
[ "0" ] = parse_number,
|
||||
[ "1" ] = parse_number,
|
||||
[ "2" ] = parse_number,
|
||||
[ "3" ] = parse_number,
|
||||
[ "4" ] = parse_number,
|
||||
[ "5" ] = parse_number,
|
||||
[ "6" ] = parse_number,
|
||||
[ "7" ] = parse_number,
|
||||
[ "8" ] = parse_number,
|
||||
[ "9" ] = parse_number,
|
||||
[ "-" ] = parse_number,
|
||||
[ "t" ] = parse_literal,
|
||||
[ "f" ] = parse_literal,
|
||||
[ "n" ] = parse_literal,
|
||||
[ "[" ] = parse_array,
|
||||
[ "{" ] = parse_object,
|
||||
}
|
||||
|
||||
|
||||
parse = function(str, idx)
|
||||
local chr = str:sub(idx, idx)
|
||||
local f = char_func_map[chr]
|
||||
if f then
|
||||
return f(str, idx)
|
||||
end
|
||||
decode_error(str, idx, "unexpected character '" .. chr .. "'")
|
||||
end
|
||||
|
||||
|
||||
function json.decode(str)
|
||||
if type(str) ~= "string" then
|
||||
error("expected argument of type string, got " .. type(str))
|
||||
end
|
||||
local res, idx = parse(str, next_char(str, 1, space_chars, true))
|
||||
idx = next_char(str, idx, space_chars, true)
|
||||
if idx <= #str then
|
||||
decode_error(str, idx, "trailing garbage")
|
||||
end
|
||||
return res
|
||||
end
|
||||
|
||||
|
||||
return json
|
||||
Loading…
Reference in a new issue