1 |
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2 |
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3 |
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4 |
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5 | var os = require("os");
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6 | var dns = require("native-dns");
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7 | var http = require("http");
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8 | var https = require("https");
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9 | var ping = require("ping");
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10 | var diagnostics = {};
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11 | var testURL = "google.com";
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12 | diagnostics.getTestURL = function(){ return testURL; };
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13 | diagnostics.setTestURL = function(replacement) {
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14 | testURL = replacement;
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15 | return;
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16 | };
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17 | diagnostics.checkInterfaces = function() {
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18 | var errors = [];
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19 | var outside = false;
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20 | var v4 = false;
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21 | var v6 = false;
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22 | var interfaces = os.networkInterfaces();
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23 | for (var interfaceSet in interfaces) {
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24 | for (var interface in interfaces[interfaceSet]) {
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25 | if (interfaces[interfaceSet][interface].internal == false) {
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26 | outside = true;
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27 | if (interfaces[interfaceSet][interface].family == "IPv4") {
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28 | v4 = true;
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29 | }
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30 | if (interfaces[interfaceSet][interface].family == "IPv6") {
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31 | v6 = true;
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32 | }
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33 | }
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34 | }
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35 | }
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36 | if (outside != true) {
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37 | errors[errors.length] = 1;
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38 | }
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39 | if (v4 != true) {
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40 | errors[errors.length] = 4;
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41 | }
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42 | if (v6 != true) {
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43 | errors[errors.length] = 6;
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44 | }
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45 | return errors;
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46 | };
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47 | diagnostics.haveIPv4 = function(){
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48 | var errors = diagnostics.checkInterfaces();
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49 | if(errors.indexOf(4) > -1) {
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50 | return false;
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51 | }
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52 | return true;
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53 | };
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54 | diagnostics.haveIPv6 = function(){
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55 | var errors = diagnostics.checkInterfaces();
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56 | if(errors.indexOf(6) > -1) {
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57 | return false;
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58 | }
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59 | return true;
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60 | };
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61 | diagnostics.haveConnection = function(){
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62 | var errors = diagnostics.checkInterfaces();
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63 | if(errors.indexOf(1) > -1) {
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64 | return false;
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65 | }
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66 | return true;
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67 | };
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68 | diagnostics.haveDNS = function(callback) {
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69 | var checkIPv4DNS = function(){
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70 | var DNSanswer = "";
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71 | var dns4Connection = dns.Request({
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72 | question: dns.Question({
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73 | name: testURL
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74 | }),
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75 | server: {
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76 | address: '8.8.8.8'
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77 | }
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78 | });
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79 | var deactivate4 = false;
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80 | dns4Connection.on("timeout", function(){
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81 | if (!deactivate4) {
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82 | deactivate4 = true;
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83 | callback(false);
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84 | return;
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85 | }
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86 | });
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87 | dns4Connection.on("message", function(DNSerr, section){
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88 | if (DNSerr) {
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89 | if (!deactivate4) {
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90 | deactivate4 = true;
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91 | callback(false);
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92 | }
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93 | return;
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94 | }
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95 | DNSanswer += section;
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96 | });
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97 | dns4Connection.on("end", function(){
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98 | if (!deactivate4) {
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99 | deactivate4 = true;
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100 | callback(true);
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101 | }
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102 | });
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103 | dns4Connection.send();
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104 | };
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105 | var DNSsegments = "";
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106 | var deactivate6 = false;
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107 | var dnsConnection = dns.Request({
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108 | question: dns.Question({
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109 | name: testURL
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110 | }),
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111 | server: {
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112 | address: '2001:4860:4860::8888'
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113 | }
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114 | });
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115 | dnsConnection.on("timeout", function(){
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116 | if (!deactivate6) {
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117 | deactivate6 = true;
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118 | checkIPv4DNS();
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119 | }
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120 | });
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121 | dnsConnection.on("message", function(DNSerr, section){
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122 | if (DNSerr) {
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123 | if (!deactivate6) {
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124 | deactivate6 = true;
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125 | checkIPv4DNS();
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126 | }
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127 | return;
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128 | }
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129 | DNSsegments += section;
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130 | });
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131 | dnsConnection.on("end", function(){
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132 | if (!deactivate6) {
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133 | deactivate6 = true;
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134 | callback(true);
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135 | }
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136 | return;
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137 | });
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138 | dnsConnection.send();
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139 | return;
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140 | };
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141 | diagnostics.haveHTTP = function(callback) {
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142 | var isFired = false;
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143 | var requestOptions = {
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144 | hostname: testURL,
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145 | port: 80,
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146 | method: "GET"
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147 | };
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148 | var httpRequest = http.request(requestOptions, function(response){
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149 | var responseTotal = "";
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150 | response.on("data", function(section){
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151 | responseTotal += section;
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152 | });
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153 | response.on("end", function(){
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154 | if (isFired == false) {
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155 | isFired = true;
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156 | callback(true);
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157 | }
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158 | });
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159 | response.on("error", function(){
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160 | if (isFired == false) {
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161 | isFired = true;
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162 | callback(false);
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163 | }
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164 | });
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165 | });
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166 | httpRequest.on("socket", function (socket){
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167 | socket.setTimeout(10000);
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168 | socket.on("timeout", function(){
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169 | if (isFired == false) {
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170 | isFired = true;
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171 | callback(false);
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172 | }
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173 | });
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174 | });
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175 | httpRequest.on("error", function(failure) {
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176 | if (isFired == false) {
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177 | isFired = true;
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178 | callback(false);
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179 | }
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180 | });
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181 | httpRequest.end();
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182 | return;
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183 | };
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184 | diagnostics.haveHTTPS = function(callback) {
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185 | var isFired = false;
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186 | var requestOptions = {
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187 | hostname: testURL,
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188 | port: 443,
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189 | method: "GET"
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190 | };
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191 | var httpRequest = https.request(requestOptions, function(response){
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192 | var responseTotal = "";
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193 | response.on("data", function(section){
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194 | responseTotal += section;
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195 | });
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196 | response.on("end", function(){
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197 | if (isFired == false) {
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198 | isFired = true;
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199 | callback(true);
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200 | }
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201 | });
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202 | response.on("error", function(){
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203 | if (isFired == false) {
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204 | isFired = true;
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205 | callback(false);
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206 | }
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207 | });
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208 | });
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209 | httpRequest.on("socket", function (socket){
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210 | socket.setTimeout(10000);
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211 | socket.on("timeout", function(){
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212 | if (isFired == false) {
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213 | isFired = true;
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214 | callback(false);
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215 | }
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216 | });
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217 | });
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218 | httpRequest.on("error", function(failure) {
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219 | if (isFired == false) {
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220 | isFired = true;
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221 | callback(false);
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222 | }
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223 | });
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224 | httpRequest.end();
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225 | return;
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226 |
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227 | };
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228 | diagnostics.havePing = function(callback) {
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229 | ping.sys.probe(testURL, function(reached) {
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230 | callback(reached);
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231 | });
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232 | };
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233 | diagnostics.getError = function(id) {
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234 | switch(id) {
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235 | case 0: return "NormalNetworkActivity";
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236 | case 1: return "NoConnection";
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237 | case 4: return "NoIPv4Connection";
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238 | case 6: return "NoIPv6Connection";
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239 | case 7: return "DiagnosticsScriptFailure";
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240 | case 8: return "PingNotUsable";
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241 | case 53: return "NoDNS";
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242 | case 80: return "NoHTTPconnection";
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243 | case 110: return "NoInsecurePOP3";
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244 | case 143: return "NoInsecureIMAP";
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245 | case 443: return "NoHTTPSconnection";
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246 | case 993: return "NoSecureIMAP";
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247 | case 995: return "NoSecurePOP3";
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248 | default: return "Unknown";
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249 | |
250 |
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251 |
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252 |
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253 |
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254 |
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255 |
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256 |
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257 |
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258 |
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259 |
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260 |
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261 |
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262 | }
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263 | };
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264 | diagnostics.diagnose = function(callback) {
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265 | var errors = diagnostics.checkInterfaces();
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266 | var finalSteps = function(errorSet) {
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267 | if (errorSet.length < 1) {
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268 | errorSet[0] = 0;
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269 | }
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270 | callback(errorSet);
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271 | };
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272 | var checkHTTPS = function(errorSet){
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273 | diagnostics.haveHTTPS(function(httpWorking){
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274 | if (httpWorking == false) {
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275 | errorSet[errorSet.length] = 443;
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276 | }
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277 | finalSteps(errorSet);
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278 | return;
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279 | });
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280 | return;
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281 | };
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282 | var checkHTTP = function(errorSet){
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283 | diagnostics.haveHTTP(function(httpWorking){
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284 | if (httpWorking == false) {
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285 | errorSet[errorSet.length] = 80;
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286 | }
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287 | checkHTTPS(errorSet);
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288 | return;
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289 | });
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290 | return;
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291 | };
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292 | var checkPing = function(errorSet) {
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293 | diagnostics.havePing(function(pingWorking){
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294 | if (pingWorking == false) {
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295 | errorSet[errorSet.length] = 8;
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296 | }
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297 | checkHTTP(errorSet);
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298 | });
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299 | };
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300 | diagnostics.haveDNS(function(haveDNS){
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301 | if (haveDNS == false) {
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302 | errors[errors.length] = 53;
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303 | }
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304 | checkPing(errors);
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305 | });
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306 | };
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307 | var email = require("./emailTester.js");
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308 | diagnostics.haveInsecureImap = email.InsecureImapWorks;
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309 | diagnostics.haveSecureImap = email.SecureImapWorks;
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310 | diagnostics.haveInsecurePop = email.insecurePopTest;
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311 | diagnostics.haveSecurePop = email.securePopTest;
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312 | module.exports = exports = diagnostics; |
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