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#!/usr/bin/env python3 |
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# -*- coding: utf-8 -*- |
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# pylint: disable=C0111,C0326,C0103 |
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"""Tools to interface with TCL's download request API.""" |
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import binascii |
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import hashlib |
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import random |
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import time |
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import zlib |
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from collections import OrderedDict |
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from math import floor |
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from defusedxml import ElementTree |
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''' |
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private HashMap<String, String> buildDownloadUrisParams(UpdatePackageInfo updatePackageInfo) { |
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FotaLog.m28v(TAG, "doAfterCheck"); |
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String salt = FotaUtil.salt(); |
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HashMap linkedHashMap = new LinkedHashMap(); |
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linkedHashMap.put("id", this.internalBuilder.getParam("id")); |
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linkedHashMap.put("salt", salt); |
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linkedHashMap.put("curef", updatePackageInfo.mCuref); |
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linkedHashMap.put("fv", updatePackageInfo.mFv); |
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linkedHashMap.put("tv", updatePackageInfo.mTv); |
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linkedHashMap.put("type", "Firmware"); |
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linkedHashMap.put("fw_id", updatePackageInfo.mFirmwareId); |
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linkedHashMap.put("mode", "2"); |
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linkedHashMap.put("vk", generateVk2((LinkedHashMap) linkedHashMap.clone())); |
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linkedHashMap.put("cltp", "10"); |
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linkedHashMap.put("cktp", this.internalBuilder.getParam("cktp")); |
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linkedHashMap.put("rtd", this.internalBuilder.getParam("rtd")); |
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linkedHashMap.put("chnl", this.internalBuilder.getParam("chnl")); |
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return linkedHashMap; |
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} |
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''' |
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VDKEY_B64Z = b"eJwdjwEOwDAIAr8kKFr//7HhmqXp8AIIDrYAgg8byiUXrwRJRXja+d6iNxu0AhUooDCN9rd6rDLxmGIakUVWo3IGCTRWqCAt6X4jGEIUAxgN0eYWnp+LkpHQAg/PsO90ELsy0Npm/n2HbtPndFgGEV31R9OmT4O4nrddjc3Qt6nWscx7e+WRHq5UnOudtjw5skuV09pFhvmqnOEIs4ljPeel1wfLYUF4\n" |
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def get_salt(): |
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"""Generate cryptographic salt.""" |
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millis = floor(time.time() * 1000) |
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tail = "{:06d}".format(random.randint(0, 999999)) |
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return "{}{}".format(str(millis), tail) |
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def get_vk2(params_dict, cltp): |
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"""Generate salted hash of API parameters.""" |
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params_dict["cltp"] = cltp |
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query = "" |
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for key, val in params_dict.items(): |
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if query: |
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query += "&" |
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query += key + "=" + str(val) |
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vdk = zlib.decompress(binascii.a2b_base64(VDKEY_B64Z)) |
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query += vdk.decode("utf-8") |
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engine = hashlib.sha1() |
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engine.update(bytes(query, "utf-8")) |
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hexhash = engine.hexdigest() |
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return hexhash |
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class TclRequestMixin: |
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"""A mixin component for TCL's download request API.""" |
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def do_request(self, curef, fvver, tvver, fw_id): |
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"""Perform download request with given parameters.""" |
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url = "https://" + self.g2master + "/download_request.php" |
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params = OrderedDict() |
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params["id"] = self.serid |
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params["salt"] = get_salt() |
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params["curef"] = curef |
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params["fv"] = fvver |
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params["tv"] = tvver |
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params["type"] = self.ftype |
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params["fw_id"] = fw_id |
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params["mode"] = self.mode.value |
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params["vk"] = get_vk2(params, self.cltp.value) |
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params["cltp"] = self.cltp.value |
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params["cktp"] = self.cktp.value |
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params["rtd"] = self.rtd.value |
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if self.mode == self.MODE.FULL: |
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params["foot"] = 1 |
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params["chnl"] = self.chnl.value |
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# print(repr(dict(params))) |
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req = self.sess.post(url, data=params) |
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if req.status_code == 200: |
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req.encoding = "utf-8" # Force encoding as server doesn't give one |
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self.write_dump(req.text) |
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return req.text |
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else: |
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print("REQUEST: " + repr(req)) |
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print(repr(req.headers)) |
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print(repr(req.text)) |
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raise SystemExit |
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@staticmethod |
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def parse_request(xmlstr): |
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"""Parse output of ``do_request``.""" |
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root = ElementTree.fromstring(xmlstr) |
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file = root.find("FILE_LIST").find("FILE") |
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fileid = file.find("FILE_ID").text |
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fileurl = file.find("DOWNLOAD_URL").text |
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s3_fileurl_node = file.find("S3_DOWNLOAD_URL") |
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s3_fileurl = "" |
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if s3_fileurl_node: |
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s3_fileurl = s3_fileurl_node.text |
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slave_list = root.find("SLAVE_LIST").findall("SLAVE") |
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enc_list = root.find("SLAVE_LIST").findall("ENCRYPT_SLAVE") |
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s3_slave_list = root.find("SLAVE_LIST").findall("S3_SLAVE") |
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slaves = [s.text for s in slave_list] |
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encslaves = [s.text for s in enc_list] |
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s3_slaves = [s.text for s in s3_slave_list] |
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return fileid, fileurl, slaves, encslaves, s3_fileurl, s3_slaves |
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mbirth /
tcl_ota_check
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