59 lines
1.6 KiB
Lua
59 lines
1.6 KiB
Lua
-- Copyright 2009 Steven Barth <steven@midlink.org>
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-- Licensed to the public under the Apache License 2.0.
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local util = require "luci.util"
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local json = require "luci.json"
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local ltn12 = require "luci.ltn12"
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local nixio = require "nixio", require "nixio.util"
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local tostring, assert, setmetatable = tostring, assert, setmetatable
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local error = error
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module "luci.rpcc"
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RQLIMIT = 32 * nixio.const.buffersize
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Client = util.class()
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function Client.__init__(self, fd, v1)
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self.fd = fd
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self.uniqueid = tostring(self):match("0x([a-f0-9]+)")
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self.msgid = 1
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self.v1 = v1
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end
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function Client.request(self, method, params, notification)
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local oldchunk = self.decoder and self.decoder.chunk
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self.decoder = json.ActiveDecoder(self.fd:blocksource(nil, RQLIMIT))
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self.decoder.chunk = oldchunk
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local reqid = self.msgid .. self.uniqueid
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local reqdata = json.Encoder({
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id = (not notification) and (self.msgid .. self.uniqueid) or nil,
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jsonrpc = (not self.v1) and "2.0" or nil,
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method = method,
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params = params
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})
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ltn12.pump.all(reqdata:source(), self.fd:sink())
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if not notification then
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self.msgid = self.msgid + 1
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local response = self.decoder:get()
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assert(response.id == reqid, "Invalid response id")
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if response.error then
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error(response.error.message or response.error)
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end
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return response.result
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end
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end
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function Client.proxy(self, prefix)
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prefix = prefix or ""
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return setmetatable({}, {
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__call = function(proxy, ...)
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return self:request(prefix, {...})
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end,
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__index = function(proxy, name)
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return self:proxy(prefix .. name .. ".")
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end
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})
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end |