diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f1e1d94 --- /dev/null +++ b/.gitignore @@ -0,0 +1,41 @@ +# macOS +.DS_Store + +# vim +.swp +*~ +*.swp +*.swo + +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.h +*.dylib +bin/ +build/ + +# Test binary, build with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# misc +notes.txt + +.data/ + +.testfiles/ + +*.pem + +*.tar + +node/test_data/go_example_image.tar + +coverage.out + +__pycache__ diff --git a/GNU-AGPL-3.0.txt b/GNU-AGPL-3.0.txt new file mode 100644 index 0000000..dba13ed --- /dev/null +++ b/GNU-AGPL-3.0.txt @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If the Program does not specify a version number of the +GNU Affero General Public License, you may choose any version ever published +by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future +versions of the GNU Affero General Public License can be used, that proxy's +public statement of acceptance of a version permanently authorizes you +to choose that version for the Program. + + Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..82a718f --- /dev/null +++ b/LICENSE @@ -0,0 +1,15 @@ +c3-sdk-python is an sdk for developing c3 apps in python. +Copyright (C) 2018 C3 Labs + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU Affero General Public License as +published by the Free Software Foundation, either version 3 of the +License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Affero General Public License for more details. + +You should have received a copy of the GNU Affero General Public License +along with this program. If not, see . diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..1dd05de --- /dev/null +++ b/Makefile @@ -0,0 +1,14 @@ +all: deps + +.PHONY: deps +deps: clean + @go get github.com/c3systems/c3-go && \ + (cd "${GOPATH}/src/github.com/c3systems/c3-go/lib/c" && \ + make) && \ + cp "${GOPATH}/src/github.com/c3systems/c3-go/lib/c/common/hashing/hashing.so" ./lib/hashing && \ + cp "${GOPATH}/src/github.com/c3systems/c3-go/lib/c/common/hexutil/hexutil.so" ./lib/hexutil && \ + cp "${GOPATH}/src/github.com/c3systems/c3-go/lib/c/common/stringutil/stringutil.so" ./lib/stringutil && \ + cp "${GOPATH}/src/github.com/c3systems/c3-go/lib/c/config/config.so" ./lib/config + +clean: + @-find . -type f -name *.so -delete diff --git a/README.md b/README.md new file mode 100644 index 0000000..e69de29 diff --git a/lib/state.json b/lib/state.json new file mode 100644 index 0000000..c8c4105 --- /dev/null +++ b/lib/state.json @@ -0,0 +1,3 @@ +{ + "foo": "bar" +} diff --git a/sdk.py b/sdk.py new file mode 100644 index 0000000..be5de17 --- /dev/null +++ b/sdk.py @@ -0,0 +1,175 @@ +from ctypes import * +from queue import Queue +from threading import Thread +import socket +import json + +# note: these files must first be built. see the make file +hashing = CDLL('./lib/hashing/hashing.so') +hexutil = CDLL('./lib/hexutil/hexutil.so') +config = CDLL('./lib/config/config.so') +stringutil = CDLL('./lib/stringutil/stringutil.so') + +class BytesResponse(Structure): + _fields_ = [ + ("r0", c_void_p), + ("r1", c_int), + ] + +stringutil.CompactJSON.restype = BytesResponse +hexutil.DecodeString.restype = BytesResponse + +ErrMethodAlreadyRegistered = Exception("method already registered") +ErrMethodNotExists = Exception("method does not exist") +ErrIncorrectNumberOfArgs = Exception("method requires two arguments") + +class C3(): + def __init__(self, statefile): + self.methods = {} + self.state = {} + self.q = Queue(maxsize=0) + self.statefile = statefile + + def registerMethod(self, methodName, ifn): + b = bytearray() + b.extend(map(ord, methodName)) + arr = (c_byte * len(b))(*b) + + methodNameHash = c_char_p(hashing.HashToHexString(arr, len(arr))).value.decode('utf-8') + if methodNameHash in self.methods: + raise ErrMethodAlreadyExists + + def newMethod(*args): + if len(args) != 2: + raise ErrIncorrectNumberOfArgs + + key = args[0] + res = hexutil.DecodeString(c_char_p(key.encode('utf-8'))) + ArrayType = c_ubyte*(c_int(res.r1).value) + pa = cast(c_void_p(res.r0), POINTER(ArrayType)) + key = "".join(map(chr, pa.contents[:])) + + val = args[1] + res = hexutil.DecodeString(c_char_p(val.encode('utf-8'))) + ArrayType = c_ubyte*(c_int(res.r1).value) + pa = cast(c_void_p(res.r0), POINTER(ArrayType)) + val = "".join(map(chr, pa.contents[:])) + + try: + res = ifn(key, val) + print("[c3] result", res) + except Exception as inst: + print("[c3] invokation failed", inst) + + self.methods[methodNameHash] = newMethod + + def setInitialState(self): + currState = "" + + file = open(self.statefile, "r") + currState = file.read() + + if len(currState) == 0: + print("no current state") + return + + b = bytearray() + b.extend(map(ord, currState)) + arr = (c_byte * len(b))(*b) + + res = stringutil.CompactJSON(arr, len(arr)) + ArrayType = c_ubyte*(c_int(res.r1).value) + pa = cast(c_void_p(res.r0), POINTER(ArrayType)) + + self.state = json.loads("".join(map(chr, pa.contents[:]))) + print("initial state loaded") + + def process(self, payloadBytes): + payload = json.loads(payloadBytes) + + if len(payload) <= 1: + return + + # ifc format is [a, b, c] + if isinstance(payload[0], str): + self.invoke(payload[0], payload[1:]) + + # ifc format is [[a, b, c], [a, b, c]] + for ifc in payload: + self.invoke(ifc[0], *ifc[1:]) + + def invoke(self, methodName, *params): + b = bytearray() + b.extend(map(ord, methodName)) + arr = (c_byte * len(b))(*b) + + methodNameHash = c_char_p(hashing.HashToHexString(arr, len(arr))).value.decode('utf-8') + if methodNameHash not in self.methods: + raise ErrMethodNotExists + + fn = self.methods[methodNameHash] + try: + fn(*params) + except Exception as inst: + print("[c3] err invoking method", inst) + return + + def listen(self): + while True: + self.process(self.q.get()) + q.task_done() + + def serve(): + host = c_char_p(config.ServerHost()).value + port = c_int(config.ServerPort()).value + + server = Server(host, port, self.q) + + worker = Thread(target=server.run) + # worker.setDaemon(True) + worker.start() + +def NewC3(stateFilePath = c_char_p(config.TempContainerStateFilePath()).value.decode('utf-8')): + c3 = C3(stateFilePath) + + c3.setInitialState() + + worker = Thread(target=c3.listen) + # worker.setDaemon(True) + worker.start() + + return c3 + +class Server(): + def __init__(self, host, port, q): + self.host = host + self.port = port + self.q = q + + def run(): + server = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + server.bind((self.host, self.port)) + server.listen(1) # max backlog of connections + + print("Listening on {0}:{1}".format(bind_ip, bind_port)) + + + def handle_conn(conn): + data = [] + while 1: + tmp = conn.recv(1024) + if not tmp: break + data.append(tmp) + + self.q.put(''.join(data)) + conn.close() + + while True: + client_sock, address = server.accept() + print('Accepted connection from {0}:{1}'.format(address[0], address[1])) + client_handler = threading.Thread( + target=handle_conn, + args=(client_sock,) # note: comment required! + ) + + client_handler.start() diff --git a/sdk_test.py b/sdk_test.py new file mode 100644 index 0000000..b976473 --- /dev/null +++ b/sdk_test.py @@ -0,0 +1,77 @@ +from ctypes import * +import unittest +import sdk +import json + +hexutil = CDLL('./lib/hexutil/hexutil.so') + +c3 = sdk.NewC3(stateFilePath = './lib/state.json') + +class TestSDK(unittest.TestCase): + def test_registerAndInvokeMethod(self): + key = "" + val = "" + expectKey = "expectKey" + expectVal = "expectVal" + methodName = "foo" + + inputKey = c_char_p(hexutil.EncodeString(c_char_p(expectKey.encode('utf-8')))).value.decode('utf-8') + inputVal = c_char_p(hexutil.EncodeString(c_char_p(expectVal.encode('utf-8')))).value.decode('utf-8') + + def setStuff(k, v): + nonlocal key + key = k + + nonlocal val + val = v + + c3.registerMethod(methodName, setStuff) + c3.invoke(methodName, inputKey, inputVal) + + self.assertEqual(expectKey, key) + self.assertEqual(expectVal, val) + + def test_store(self): + key = "foo" + val = "bar" + + c3.state[key] = val + + self.assertEqual(c3.state[key], val) + del c3.state[key] + + def test_state(self): + methodName = "setState" + + key1 = "foo" + val1 = "bar" + + key2 = "foofoo" + val2 = "barbar" + + def setState(k, v): + c3.state[k] = v + + c3.registerMethod(methodName, setState) + + p1 = [ + methodName, + c_char_p(hexutil.EncodeString(c_char_p(key1.encode('utf-8')))).value.decode('utf-8'), + c_char_p(hexutil.EncodeString(c_char_p(val1.encode('utf-8')))).value.decode('utf-8'), + ] + p2 = [ + methodName, + c_char_p(hexutil.EncodeString(c_char_p(key2.encode('utf-8')))).value.decode('utf-8'), + c_char_p(hexutil.EncodeString(c_char_p(val2.encode('utf-8')))).value.decode('utf-8'), + ] + + params = [p1, p2] + paramsJSON = json.dumps(params) + + c3.process(paramsJSON) + + self.assertEqual(c3.state[key1], val1) + self.assertEqual(c3.state[key2], val2) + +if __name__ == '__main__': + unittest.main()