1 | # |
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2 | # Copyright (C) 2020-2021 Soleta Networks <info@soleta.eu> |
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3 | # |
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4 | # This program is free software: you can redistribute it and/or modify it under |
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5 | # the terms of the GNU Affero General Public License as published by the |
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6 | # Free Software Foundation; either version 3 of the License, or |
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7 | # (at your option) any later version. |
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8 | |
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9 | import threading |
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10 | import platform |
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11 | import time |
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12 | from enum import Enum |
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13 | import json |
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14 | import queue |
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15 | import sys |
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16 | import os |
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17 | import signal |
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18 | import syslog |
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19 | |
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20 | from src.restRequest import * |
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21 | |
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22 | class ThreadState(Enum): |
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23 | IDLE = 0 |
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24 | BUSY = 1 |
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25 | |
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26 | class jsonBody(): |
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27 | def __init__(self, dictionary=None): |
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28 | if dictionary: |
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29 | self.jsontree = dictionary |
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30 | else: |
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31 | self.jsontree = {} |
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32 | |
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33 | def add_element(self, key, value): |
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34 | self.jsontree[key] = value |
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35 | |
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36 | def dump(self): |
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37 | return json.dumps(self.jsontree) |
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38 | |
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39 | class restResponse(): |
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40 | def __init__(self, response, json_body=None): |
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41 | self.msg = '' |
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42 | if response == ogResponses.BAD_REQUEST: |
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43 | self.msg = 'HTTP/1.0 400 Bad Request' |
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44 | elif response == ogResponses.IN_PROGRESS: |
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45 | self.msg = 'HTTP/1.0 202 Accepted' |
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46 | elif response == ogResponses.OK: |
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47 | self.msg = 'HTTP/1.0 200 OK' |
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48 | elif response == ogResponses.INTERNAL_ERR: |
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49 | self.msg = 'HTTP/1.0 500 Internal Server Error' |
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50 | elif response == ogResponses.UNAUTHORIZED: |
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51 | self.msg = 'HTTP/1.0 401 Unauthorized' |
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52 | elif response == ogResponses.SERVICE_UNAVAILABLE: |
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53 | self.msg = 'HTTP/1.0 503 Service Unavailable' |
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54 | else: |
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55 | return self.msg |
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56 | |
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57 | if response in {ogResponses.OK, ogResponses.IN_PROGRESS}: |
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58 | syslog.syslog(syslog.LOG_INFO, |
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59 | self.msg[:ogRest.LOG_LENGTH]) |
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60 | else: |
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61 | syslog.syslog(syslog.LOG_ERR, |
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62 | self.msg[:ogRest.LOG_LENGTH]) |
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63 | |
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64 | self.msg += '\r\n' |
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65 | |
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66 | if json_body: |
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67 | self.msg += 'Content-Length: ' + str(len(json_body.dump())) |
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68 | self.msg += '\r\nContent-Type: application/json' |
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69 | self.msg += '\r\n\r\n' + json_body.dump() |
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70 | else: |
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71 | self.msg += 'Content-Length: 0\r\n' \ |
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72 | 'Content-Type: application/json\r\n\r\n' |
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73 | |
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74 | |
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75 | def get(self): |
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76 | return self.msg |
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77 | |
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78 | class ogThread(): |
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79 | def shellrun(client, request, ogRest): |
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80 | if not request.getrun(): |
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81 | response = restResponse(ogResponses.BAD_REQUEST) |
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82 | client.send(response.get()) |
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83 | ogRest.state = ThreadState.IDLE |
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84 | return |
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85 | |
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86 | try: |
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87 | shellout = ogRest.operations.shellrun(request, ogRest) |
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88 | except ValueError as err: |
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89 | response = restResponse(ogResponses.INTERNAL_ERR) |
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90 | client.send(response.get()) |
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91 | ogRest.state = ThreadState.IDLE |
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92 | return |
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93 | |
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94 | if request.getEcho(): |
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95 | json_body = jsonBody() |
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96 | json_body.add_element('out', shellout) |
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97 | response = restResponse(ogResponses.OK, json_body) |
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98 | client.send(response.get()) |
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99 | else: |
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100 | response = restResponse(ogResponses.OK) |
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101 | client.send(response.get()) |
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102 | |
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103 | ogRest.state = ThreadState.IDLE |
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104 | |
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105 | def poweroff(ogRest): |
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106 | time.sleep(2) |
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107 | ogRest.operations.poweroff() |
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108 | |
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109 | def reboot(ogRest): |
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110 | ogRest.operations.reboot() |
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111 | |
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112 | def session(client, request, ogRest): |
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113 | try: |
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114 | ogRest.operations.session(request, ogRest) |
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115 | except ValueError as err: |
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116 | response = restResponse(ogResponses.INTERNAL_ERR) |
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117 | client.send(response.get()) |
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118 | ogRest.state = ThreadState.IDLE |
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119 | return |
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120 | |
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121 | response = restResponse(ogResponses.OK) |
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122 | client.send(response.get()) |
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123 | client.disconnect() |
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124 | |
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125 | def software(client, request, path, ogRest): |
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126 | try: |
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127 | software = ogRest.operations.software(request, path, ogRest) |
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128 | except ValueError as err: |
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129 | response = restResponse(ogResponses.INTERNAL_ERR) |
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130 | client.send(response.get()) |
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131 | ogRest.state = ThreadState.IDLE |
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132 | return |
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133 | |
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134 | json_body = jsonBody() |
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135 | json_body.add_element('partition', request.getPartition()) |
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136 | json_body.add_element('software', software) |
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137 | |
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138 | response = restResponse(ogResponses.OK, json_body) |
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139 | client.send(response.get()) |
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140 | ogRest.state = ThreadState.IDLE |
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141 | |
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142 | def hardware(client, path, ogRest): |
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143 | try: |
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144 | ogRest.operations.hardware(path, ogRest) |
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145 | except ValueError as err: |
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146 | response = restResponse(ogResponses.INTERNAL_ERR) |
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147 | client.send(response.get()) |
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148 | ogRest.state = ThreadState.IDLE |
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149 | return |
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150 | |
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151 | json_body = jsonBody() |
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152 | with open(path, 'r') as f: |
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153 | json_body.add_element('hardware', f.read()) |
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154 | |
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155 | response = restResponse(ogResponses.OK, json_body) |
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156 | client.send(response.get()) |
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157 | ogRest.state = ThreadState.IDLE |
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158 | |
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159 | def setup(client, request, ogRest): |
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160 | try: |
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161 | out = ogRest.operations.setup(request, ogRest) |
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162 | except ValueError as err: |
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163 | response = restResponse(ogResponses.INTERNAL_ERR) |
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164 | client.send(response.get()) |
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165 | ogRest.state = ThreadState.IDLE |
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166 | return |
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167 | |
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168 | json_body = jsonBody(out) |
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169 | |
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170 | response = restResponse(ogResponses.OK, json_body) |
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171 | client.send(response.get()) |
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172 | ogRest.state = ThreadState.IDLE |
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173 | |
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174 | def image_restore(client, request, ogRest): |
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175 | try: |
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176 | ogRest.operations.image_restore(request, ogRest) |
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177 | except ValueError as err: |
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178 | response = restResponse(ogResponses.INTERNAL_ERR) |
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179 | client.send(response.get()) |
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180 | ogRest.state = ThreadState.IDLE |
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181 | return |
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182 | |
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183 | json_body = jsonBody() |
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184 | json_body.add_element('disk', request.getDisk()) |
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185 | json_body.add_element('partition', request.getPartition()) |
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186 | json_body.add_element('image_id', request.getId()) |
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187 | |
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188 | response = restResponse(ogResponses.OK, json_body) |
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189 | client.send(response.get()) |
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190 | ogRest.state = ThreadState.IDLE |
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191 | |
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192 | def image_create(client, path, request, ogRest): |
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193 | try: |
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194 | image_info = ogRest.operations.image_create(path, |
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195 | request, |
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196 | ogRest) |
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197 | software = ogRest.operations.software(request, path, ogRest) |
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198 | except ValueError as err: |
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199 | response = restResponse(ogResponses.INTERNAL_ERR) |
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200 | client.send(response.get()) |
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201 | ogRest.state = ThreadState.IDLE |
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202 | return |
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203 | |
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204 | kibi = 1024 |
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205 | datasize = int(image_info['datasize']) * kibi |
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206 | |
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207 | json_body = jsonBody() |
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208 | json_body.add_element('disk', request.getDisk()) |
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209 | json_body.add_element('partition', request.getPartition()) |
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210 | json_body.add_element('code', request.getCode()) |
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211 | json_body.add_element('id', request.getId()) |
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212 | json_body.add_element('name', request.getName()) |
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213 | json_body.add_element('repository', request.getRepo()) |
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214 | json_body.add_element('software', software) |
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215 | json_body.add_element('clonator', image_info['clonator']) |
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216 | json_body.add_element('compressor', image_info['compressor']) |
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217 | json_body.add_element('filesystem', image_info['filesystem']) |
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218 | json_body.add_element('datasize', datasize) |
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219 | |
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220 | response = restResponse(ogResponses.OK, json_body) |
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221 | client.send(response.get()) |
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222 | ogRest.state = ThreadState.IDLE |
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223 | |
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224 | def refresh(client, ogRest): |
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225 | try: |
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226 | out = ogRest.operations.refresh(ogRest) |
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227 | except ValueError as err: |
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228 | response = restResponse(ogResponses.INTERNAL_ERR) |
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229 | client.send(response.get()) |
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230 | ogRest.state = ThreadState.IDLE |
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231 | return |
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232 | |
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233 | json_body = jsonBody(out) |
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234 | |
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235 | response = restResponse(ogResponses.OK, json_body) |
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236 | client.send(response.get()) |
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237 | ogRest.state = ThreadState.IDLE |
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238 | |
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239 | class ogResponses(Enum): |
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240 | BAD_REQUEST=0 |
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241 | IN_PROGRESS=1 |
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242 | OK=2 |
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243 | INTERNAL_ERR=3 |
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244 | UNAUTHORIZED=4 |
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245 | SERVICE_UNAVAILABLE=5 |
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246 | |
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247 | class ogRest(): |
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248 | LOG_LENGTH = 32 |
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249 | |
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250 | def __init__(self, config): |
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251 | self.proc = None |
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252 | self.terminated = False |
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253 | self.state = ThreadState.IDLE |
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254 | self.CONFIG = config |
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255 | self.mode = self.CONFIG['opengnsys']['mode'] |
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256 | self.samba_config = self.CONFIG['samba'] |
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257 | |
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258 | if self.mode == 'live': |
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259 | from src.live.ogOperations import OgLiveOperations |
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260 | self.operations = OgLiveOperations(self.CONFIG) |
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261 | elif self.mode == 'virtual': |
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262 | from src.virtual.ogOperations import \ |
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263 | OgVirtualOperations |
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264 | self.operations = OgVirtualOperations() |
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265 | threading.Thread(target=self.operations.check_vm_state_loop, |
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266 | args=(self,)).start() |
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267 | else: |
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268 | raise ValueError('Mode not supported.') |
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269 | |
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270 | def process_request(self, request, client): |
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271 | method = request.get_method() |
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272 | URI = request.get_uri() |
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273 | |
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274 | syslog.syslog(syslog.LOG_DEBUG, f'{method}{URI[:ogRest.LOG_LENGTH]}') |
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275 | |
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276 | if (not "stop" in URI and |
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277 | not "reboot" in URI and |
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278 | not "poweroff" in URI and |
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279 | not "probe" in URI): |
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280 | if self.state == ThreadState.BUSY: |
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281 | syslog.syslog(syslog.LOG_ERR, |
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282 | 'Request has been received ' |
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283 | 'while ogClient is busy') |
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284 | response = restResponse(ogResponses.SERVICE_UNAVAILABLE) |
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285 | client.send(response.get()) |
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286 | return |
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287 | else: |
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288 | self.state = ThreadState.BUSY |
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289 | |
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290 | if ("GET" in method): |
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291 | if "hardware" in URI: |
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292 | self.process_hardware(client) |
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293 | elif ("software" in URI): |
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294 | self.process_software(client, request) |
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295 | elif ("run/schedule" in URI): |
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296 | self.process_schedule(client) |
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297 | elif "refresh" in URI: |
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298 | self.process_refresh(client) |
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299 | else: |
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300 | syslog.syslog(syslog.LOG_ERR, |
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301 | f'Unsupported request: ' |
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302 | f'{method[:ogRest.LOG_LENGTH]}') |
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303 | response = restResponse(ogResponses.BAD_REQUEST) |
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304 | client.send(response.get()) |
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305 | self.state = ThreadState.IDLE |
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306 | elif ("POST" in method): |
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307 | if ("poweroff" in URI): |
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308 | self.process_poweroff(client) |
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309 | elif "probe" in URI: |
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310 | self.process_probe(client) |
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311 | elif ("reboot" in URI): |
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312 | self.process_reboot(client) |
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313 | elif ("shell/run" in URI): |
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314 | self.process_shellrun(client, request) |
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315 | elif ("session" in URI): |
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316 | self.process_session(client, request) |
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317 | elif ("setup" in URI): |
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318 | self.process_setup(client, request) |
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319 | elif ("image/restore" in URI): |
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320 | self.process_imagerestore(client, request) |
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321 | elif ("stop" in URI): |
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322 | self.process_stop(client) |
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323 | elif ("image/create" in URI): |
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324 | self.process_imagecreate(client, request) |
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325 | else: |
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326 | syslog.syslog(syslog.LOG_ERR, |
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327 | f'Unsupported request: ' |
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328 | f'{method[:ogRest.LOG_LENGTH]}') |
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329 | response = restResponse(ogResponses.BAD_REQUEST) |
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330 | client.send(response.get()) |
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331 | self.state = ThreadState.IDLE |
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332 | else: |
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333 | response = restResponse(ogResponses.BAD_REQUEST) |
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334 | client.send(response.get()) |
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335 | self.state = ThreadState.IDLE |
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336 | |
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337 | return 0 |
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338 | |
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339 | def kill_process(self): |
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340 | try: |
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341 | os.kill(self.proc.pid, signal.SIGTERM) |
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342 | except: |
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343 | pass |
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344 | |
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345 | time.sleep(2) |
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346 | try: |
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347 | os.kill(self.proc.pid, signal.SIGKILL) |
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348 | except: |
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349 | pass |
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350 | |
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351 | self.state = ThreadState.IDLE |
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352 | |
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353 | def process_reboot(self, client): |
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354 | response = restResponse(ogResponses.IN_PROGRESS) |
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355 | client.send(response.get()) |
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356 | |
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357 | if self.mode != 'virtual': |
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358 | client.disconnect() |
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359 | if self.state == ThreadState.BUSY: |
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360 | self.kill_process() |
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361 | |
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362 | threading.Thread(target=ogThread.reboot, args=(self,)).start() |
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363 | |
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364 | def process_poweroff(self, client): |
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365 | response = restResponse(ogResponses.IN_PROGRESS) |
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366 | client.send(response.get()) |
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367 | |
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368 | if self.mode != 'virtual': |
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369 | client.disconnect() |
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370 | if self.state == ThreadState.BUSY: |
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371 | self.kill_process() |
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372 | |
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373 | threading.Thread(target=ogThread.poweroff, args=(self,)).start() |
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374 | |
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375 | def process_probe(self, client): |
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376 | try: |
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377 | status = self.operations.probe(self) |
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378 | except: |
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379 | response = restResponse(ogResponses.INTERNAL_ERR) |
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380 | client.send(response.get()) |
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381 | return |
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382 | |
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383 | json_body = jsonBody() |
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384 | for k, v in status.items(): |
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385 | json_body.add_element(k, v) |
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386 | |
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387 | if self.state != ThreadState.BUSY: |
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388 | response = restResponse(ogResponses.OK, json_body) |
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389 | else: |
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390 | response = restResponse(ogResponses.IN_PROGRESS, json_body) |
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391 | |
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392 | client.send(response.get()) |
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393 | |
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394 | def process_shellrun(self, client, request): |
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395 | threading.Thread(target=ogThread.shellrun, args=(client, request, self,)).start() |
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396 | |
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397 | def process_session(self, client, request): |
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398 | threading.Thread(target=ogThread.session, args=(client, request, self,)).start() |
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399 | |
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400 | def process_software(self, client, request): |
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401 | path = '/tmp/CSft-' + client.ip + '-' + str(request.getPartition()) |
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402 | threading.Thread(target=ogThread.software, args=(client, request, path, self,)).start() |
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403 | |
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404 | def process_hardware(self, client): |
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405 | path = '/tmp/Chrd-' + client.ip |
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406 | threading.Thread(target=ogThread.hardware, args=(client, path, self,)).start() |
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407 | |
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408 | def process_schedule(self, client): |
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409 | response = restResponse(ogResponses.OK) |
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410 | client.send(response.get()) |
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411 | self.state = ThreadState.IDLE |
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412 | |
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413 | def process_setup(self, client, request): |
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414 | threading.Thread(target=ogThread.setup, args=(client, request, self,)).start() |
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415 | |
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416 | def process_imagerestore(self, client, request): |
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417 | threading.Thread(target=ogThread.image_restore, args=(client, request, self,)).start() |
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418 | |
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419 | def process_stop(self, client): |
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420 | client.disconnect() |
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421 | if self.state == ThreadState.BUSY: |
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422 | self.kill_process() |
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423 | self.terminated = True |
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424 | |
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425 | sys.exit(0) |
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426 | |
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427 | def process_imagecreate(self, client, request): |
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428 | path = '/tmp/CSft-' + client.ip + '-' + request.getPartition() |
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429 | threading.Thread(target=ogThread.image_create, args=(client, path, request, self,)).start() |
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430 | |
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431 | def process_refresh(self, client): |
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432 | threading.Thread(target=ogThread.refresh, args=(client, self,)).start() |
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