silverstripe /
silverstripe-realme
| Total Complexity | 45 |
| Total Lines | 432 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like RealMeSetupTask often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use RealMeSetupTask, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 25 | class RealMeSetupTask extends BuildTask |
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| 26 | { |
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| 27 | private static $segment = 'RealMeSetupTask'; |
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introduced
by
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| 28 | |||
| 29 | private static $dependencies = [ |
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| 30 | 'Service' => '%$' . RealMeService::class, |
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| 31 | ]; |
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| 32 | |||
| 33 | protected $title = "RealMe Setup Task"; |
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| 34 | |||
| 35 | protected $description = 'Validates a realme configuration & creates the resources needed to integrate with realme'; |
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| 36 | |||
| 37 | /** |
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| 38 | * @var RealMeService |
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| 39 | */ |
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| 40 | private $service; |
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| 41 | |||
| 42 | /** |
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| 43 | * A list of validation errors found while validating the realme configuration. |
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| 44 | * |
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| 45 | * @var string[] |
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| 46 | */ |
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| 47 | private $errors = array(); |
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| 48 | |||
| 49 | /** |
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| 50 | * Run this setup task. See class phpdoc for the full description of what this does |
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| 51 | * |
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| 52 | * @param SS_HTTPRequest $request |
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| 53 | */ |
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| 54 | public function run($request) |
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| 55 | { |
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| 56 | try { |
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| 57 | // Ensure we are running on the command-line, and not running in a browser |
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| 58 | if (false === Director::is_cli()) { |
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| 59 | throw new Exception(_t( |
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| 60 | self::class . '.ERR_NOT_CLI', |
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| 61 | 'This task can only be run from the command-line, not in your browser.' |
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| 62 | )); |
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| 63 | } |
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| 64 | |||
| 65 | // Validate all required values exist |
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| 66 | $forEnv = $request->getVar('forEnv'); |
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| 67 | |||
| 68 | // Throws an exception if there was a problem with the config. |
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| 69 | $this->validateInputs($forEnv); |
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| 70 | |||
| 71 | $this->outputMetadataXmlContent($forEnv); |
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| 72 | |||
| 73 | $this->message(PHP_EOL . _t( |
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| 74 | self::class . '.BUILD_FINISH', |
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| 75 | 'RealMe setup complete. Please copy the XML into a file for upload to the %s environment or DIA ' . |
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| 76 | 'to complete the integration', |
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| 77 | '', |
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| 78 | array('env' => $forEnv) |
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| 79 | )); |
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| 80 | } catch (Exception $e) { |
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| 81 | $this->message($e->getMessage() . PHP_EOL); |
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| 82 | } |
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| 83 | } |
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| 84 | |||
| 85 | /** |
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| 86 | * @param RealMeService $service |
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| 87 | */ |
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| 88 | public function setService($service) |
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| 89 | { |
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| 90 | $this->service = $service; |
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| 91 | |||
| 92 | return $this; |
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| 93 | } |
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| 94 | |||
| 95 | /** |
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| 96 | * Validate all inputs to this setup script. Ensures that all required values are available, where-ever they need to |
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| 97 | * be loaded from (environment variables, Config API, or directly passed to this script via the cmd-line) |
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| 98 | * |
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| 99 | * @param string $forEnv The environment that we want to output content for (mts, ite, or prod) |
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| 100 | * |
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| 101 | * @throws Exception if there were errors with the request or setup format. |
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| 102 | */ |
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| 103 | private function validateInputs($forEnv) |
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| 104 | { |
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| 105 | // Ensure that 'forEnv=' is specified on the cli, and ensure that it matches a RealMe environment |
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| 106 | $this->validateRealMeEnvironments($forEnv); |
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| 107 | |||
| 108 | // Ensure we have the necessary directory structures, and their visibility |
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| 109 | $this->validateDirectoryStructure(); |
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| 110 | |||
| 111 | // Ensure we have the certificates in the correct places. |
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| 112 | $this->validateCertificates(); |
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| 113 | |||
| 114 | // Ensure the entityID is valid, and the privacy realm and service name are correct |
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| 115 | $this->validateEntityID($forEnv); |
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| 116 | |||
| 117 | // Make sure we have an authncontext for each environment. |
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| 118 | $this->validateAuthNContext(); |
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| 119 | |||
| 120 | // Ensure data required for metadata XML output exists |
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| 121 | $this->validateMetadata(); |
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| 122 | |||
| 123 | // Output validation errors, if any are found |
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| 124 | if (sizeof($this->errors) > 0) { |
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| 125 | $errorList = PHP_EOL . ' - ' . join(PHP_EOL . ' - ', $this->errors); |
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| 126 | |||
| 127 | throw new Exception(_t( |
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| 128 | self::class . '.ERR_VALIDATION', |
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| 129 | 'There were {numissues} issue(s) found during validation that must be fixed prior to setup: {issues}', |
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| 130 | '', |
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| 131 | array( |
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| 132 | 'numissues' => sizeof($this->errors), |
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| 133 | 'issues' => $errorList |
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| 134 | ) |
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| 135 | )); |
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| 136 | } |
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| 137 | |||
| 138 | $this->message(_t( |
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| 139 | self::class . '.VALIDATION_SUCCESS', |
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| 140 | 'Validation succeeded, continuing with setup...' |
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| 141 | )); |
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| 142 | } |
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| 143 | |||
| 144 | /** |
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| 145 | * Outputs metadata template XML to console, so it can be sent to RealMe Operations team |
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| 146 | * |
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| 147 | * @param string $forEnv The RealMe environment to output metadata content for (e.g. mts, ite, prod). |
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| 148 | */ |
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| 149 | private function outputMetadataXmlContent($forEnv) |
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| 150 | { |
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| 151 | // Output metadata XML so that it can be sent to RealMe via the agency |
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| 152 | $this->message(_t( |
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| 153 | self::class . '.OUPUT_PREFIX', |
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| 154 | 'Metadata XML is listed below for the \'%s\' RealMe environment, this should be sent to the agency so they ' |
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| 155 | . 'can pass it on to RealMe Operations staff', |
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| 156 | $forEnv |
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| 157 | ) . PHP_EOL . PHP_EOL); |
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| 158 | |||
| 159 | $configDir = $this->getConfigurationTemplateDir(); |
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| 160 | $templateFile = Controller::join_links($configDir, 'metadata.xml'); |
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| 161 | |||
| 162 | if (false === $this->isReadable($templateFile)) { |
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| 163 | throw new Exception(sprintf("Can't read metadata.xml file at %s", $templateFile)); |
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| 164 | } |
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| 165 | |||
| 166 | $supportContact = $this->service->getMetadataContactSupport(); |
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| 167 | |||
| 168 | $message = $this->replaceTemplateContents( |
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| 169 | $templateFile, |
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| 170 | array( |
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| 171 | '{{entityID}}' => $this->service->getSPEntityID(), |
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| 172 | '{{certificate-data}}' => $this->service->getSPCertContent(), |
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| 173 | '{{nameidformat}}' => $this->service->getNameIdFormat(), |
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| 174 | '{{acs-url}}' => $this->service->getAssertionConsumerServiceUrlForEnvironment($forEnv), |
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| 175 | '{{organisation-name}}' => $this->service->getMetadataOrganisationName(), |
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| 176 | '{{organisation-display-name}}' => $this->service->getMetadataOrganisationDisplayName(), |
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| 177 | '{{organisation-url}}' => $this->service->getMetadataOrganisationUrl(), |
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| 178 | '{{contact-support1-company}}' => $supportContact['company'], |
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| 179 | '{{contact-support1-firstnames}}' => $supportContact['firstNames'], |
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| 180 | '{{contact-support1-surname}}' => $supportContact['surname'], |
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| 181 | ) |
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| 182 | ); |
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| 183 | |||
| 184 | $this->message($message); |
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| 185 | } |
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| 186 | |||
| 187 | /** |
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| 188 | * Replace content in a template file with an array of replacements |
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| 189 | * |
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| 190 | * @param string $templatePath The path to the template file |
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| 191 | * @param array|null $replacements An array of '{{variable}}' => 'value' replacements |
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| 192 | * @return string The contents, with all {{variables}} replaced |
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| 193 | */ |
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| 194 | private function replaceTemplateContents($templatePath, $replacements = null) |
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| 195 | { |
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| 196 | $configText = file_get_contents($templatePath); |
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| 197 | |||
| 198 | if (true === is_array($replacements)) { |
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| 199 | $configText = str_replace(array_keys($replacements), array_values($replacements), $configText); |
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| 200 | } |
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| 201 | |||
| 202 | return $configText; |
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| 203 | } |
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| 204 | |||
| 205 | /** |
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| 206 | * @return string The full path to RealMe configuration |
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| 207 | */ |
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| 208 | private function getConfigurationTemplateDir() |
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| 209 | { |
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| 210 | $dir = $this->config()->template_config_dir; |
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| 211 | $path = Controller::join_links(BASE_PATH, $dir); |
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| 212 | |||
| 213 | if ($dir && false !== $this->isReadable($path)) { |
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| 214 | return $path; |
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| 215 | } |
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| 216 | |||
| 217 | $path = ModuleLoader::inst()->getManifest()->getModule('realme')->getPath(); |
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| 218 | |||
| 219 | return $path . '/templates/saml-conf'; |
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| 220 | } |
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| 221 | |||
| 222 | /** |
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| 223 | * Output a message to the console |
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| 224 | * @param string $message |
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| 225 | * @return void |
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| 226 | */ |
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| 227 | private function message($message) |
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| 228 | { |
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| 229 | echo $message . PHP_EOL; |
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| 230 | } |
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| 231 | |||
| 232 | /** |
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| 233 | * Thin wrapper around is_readable(), used mainly so we can test this class completely |
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| 234 | * |
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| 235 | * @param string $filename The filename or directory to test |
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| 236 | * @return bool true if the file/dir is readable, false if not |
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| 237 | */ |
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| 238 | private function isReadable($filename) |
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| 239 | { |
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| 240 | return is_readable($filename); |
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| 241 | } |
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| 242 | |||
| 243 | /** |
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| 244 | * The entity ID will pass validation, but raise an exception if the format of the service name and privacy realm |
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| 245 | * are in the incorrect format. |
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| 246 | * The service name and privacy realm need to be under 10 chars eg. |
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| 247 | * http://hostname.domain/serviceName/privacyRealm |
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| 248 | * |
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| 249 | * @param string $forEnv |
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| 250 | * @return void |
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| 251 | */ |
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| 252 | private function validateEntityID($forEnv) |
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| 253 | { |
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| 254 | $entityId = $this->service->getSPEntityID(); |
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| 255 | |||
| 256 | if (is_null($entityId)) { |
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| 257 | $this->errors[] = _t( |
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| 258 | self::class . '.ERR_CONFIG_NO_ENTITYID', |
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| 259 | 'No entityID specified for environment \'{env}\'. Specify this in your YML configuration, see the' . |
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| 260 | ' module documentation for more details', |
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| 261 | array('env' => $forEnv) |
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| 262 | ); |
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| 263 | } |
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| 264 | |||
| 265 | // make sure the entityID is a valid URL |
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| 266 | $entityId = filter_var($entityId, FILTER_VALIDATE_URL); |
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| 267 | if ($entityId === false) { |
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| 268 | $this->errors[] = _t( |
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| 269 | self::class . '.ERR_CONFIG_ENTITYID', |
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| 270 | 'The Entity ID (\'{entityId}\') must be https, not be \'localhost\', and must contain a valid ' . |
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| 271 | 'service name and privacy realm e.g. https://my-realme-integration.govt.nz/p-realm/s-name', |
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| 272 | '', |
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| 273 | array( |
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| 274 | 'entityId' => $entityId |
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| 275 | ) |
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| 276 | ); |
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| 277 | |||
| 278 | // invalid entity id, no point continuing. |
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| 279 | return; |
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| 280 | } |
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| 281 | |||
| 282 | // check it's not localhost and HTTPS. and make sure we have a host / scheme |
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| 283 | $urlParts = parse_url($entityId); |
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| 284 | if ($urlParts['host'] === 'localhost' || $urlParts['scheme'] === 'http') { |
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| 285 | $this->errors[] = _t( |
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| 286 | self::class . '.ERR_CONFIG_ENTITYID', |
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| 287 | 'The Entity ID (\'{entityId}\') must be https, not be \'localhost\', and must contain a valid ' . |
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| 288 | 'service name and privacy realm e.g. https://my-realme-integration.govt.nz/p-realm/s-name', |
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| 289 | '', |
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| 290 | array( |
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| 291 | 'entityId' => $entityId |
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| 292 | ) |
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| 293 | ); |
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| 294 | |||
| 295 | // if there's this much wrong, we want them to fix it first. |
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| 296 | return; |
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| 297 | } |
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| 298 | |||
| 299 | $path = ltrim($urlParts['path']); |
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| 300 | $urlParts = preg_split("/\\//", $path); |
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| 301 | |||
| 302 | |||
| 303 | // A valid Entity ID is in the form of "https://www.domain.govt.nz/<privacy-realm>/<service-name>" |
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| 304 | // Validate Service Name |
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| 305 | $serviceName = array_pop($urlParts); |
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| 306 | if (mb_strlen($serviceName) > 20 || 0 === mb_strlen($serviceName)) { |
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| 307 | $this->errors[] = _t( |
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| 308 | self::class . '.ERR_CONFIG_ENTITYID_SERVICE_NAME', |
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| 309 | 'The service name \'{serviceName}\' must be a maximum of 20 characters and not blank for entityID ' . |
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| 310 | '\'{entityId}\'', |
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| 311 | '', |
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| 312 | array( |
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| 313 | 'serviceName' => $serviceName, |
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| 314 | 'entityId' => $entityId |
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| 315 | ) |
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| 316 | ); |
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| 317 | } |
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| 318 | |||
| 319 | // Validate Privacy Realm |
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| 320 | $privacyRealm = array_pop($urlParts); |
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| 321 | if (null === $privacyRealm || 0 === mb_strlen($privacyRealm)) { |
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| 322 | $this->errors[] = _t( |
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| 323 | self::class . '.ERR_CONFIG_ENTITYID_PRIVACY_REALM', |
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| 324 | 'The privacy realm \'{privacyRealm}\' must not be blank for entityID \'{entityId}\'', |
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| 325 | '', |
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| 326 | array( |
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| 327 | 'privacyRealm' => $privacyRealm, |
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| 328 | 'entityId' => $entityId |
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| 329 | ) |
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| 330 | ); |
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| 331 | } |
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| 332 | } |
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| 333 | |||
| 334 | /** |
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| 335 | * Ensure we have an authncontext (how secure auth we require for each environment) |
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| 336 | * |
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| 337 | * e.g. urn:nzl:govt:ict:stds:authn:deployment:GLS:SAML:2.0:ac:classes:LowStrength |
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| 338 | */ |
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| 339 | private function validateAuthNContext() |
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| 340 | { |
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| 341 | foreach ($this->service->getAllowedRealMeEnvironments() as $env) { |
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| 342 | $context = $this->service->getAuthnContextForEnvironment($env); |
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| 343 | if (is_null($context)) { |
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| 344 | $this->errors[] = _t( |
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| 345 | self::class . '.ERR_CONFIG_NO_AUTHNCONTEXT', |
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| 346 | 'No AuthnContext specified for environment \'{env}\'. Specify this in your YML configuration, ' . |
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| 347 | 'see the module documentation for more details', |
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| 348 | array('env' => $env) |
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| 349 | ); |
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| 350 | } |
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| 351 | |||
| 352 | if (!in_array($context, $this->service->getAllowedAuthNContextList())) { |
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| 353 | $this->errors[] = _t( |
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| 354 | self::class . '.ERR_CONFIG_INVALID_AUTHNCONTEXT', |
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| 355 | 'The AuthnContext specified for environment \'{env}\' is invalid, please check your configuration', |
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| 356 | array('env' => $env) |
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| 357 | ); |
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| 358 | } |
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| 359 | } |
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| 360 | } |
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| 361 | |||
| 362 | /** |
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| 363 | * Ensure's the environment we're building the setup for exists. |
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| 364 | * |
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| 365 | * @param string $forEnv The environment that we're going to configure with this run. |
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| 366 | */ |
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| 367 | private function validateRealMeEnvironments($forEnv) |
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| 368 | { |
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| 369 | $allowedEnvs = $this->service->getAllowedRealMeEnvironments(); |
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| 370 | if (0 === mb_strlen($forEnv)) { |
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| 371 | $this->errors[] = _t( |
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| 372 | self::class . '.ERR_ENV_NOT_SPECIFIED', |
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| 373 | 'The RealMe environment was not specified on the cli It must be one of: {allowedEnvs} ' . |
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| 374 | 'e.g. sake dev/tasks/RealMeSetupTask forEnv=mts', |
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| 375 | array( |
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| 376 | 'allowedEnvs' => join(', ', $allowedEnvs) |
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| 377 | ) |
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| 378 | ); |
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| 379 | return; |
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| 380 | } |
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| 381 | |||
| 382 | if (false === in_array($forEnv, $allowedEnvs)) { |
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| 383 | $this->errors[] = _t( |
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| 384 | self::class . '.ERR_ENV_NOT_ALLOWED', |
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| 385 | 'The RealMe environment specified on the cli (\'{env}\') is not allowed. ' . |
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| 386 | 'It must be one of: {allowedEnvs}', |
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| 387 | array( |
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| 388 | 'env' => $forEnv, |
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| 389 | 'allowedEnvs' => join(', ', $allowedEnvs) |
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| 390 | ) |
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| 391 | ); |
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| 392 | } |
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| 393 | } |
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| 394 | |||
| 395 | /** |
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| 396 | * Ensures that the directory structure is correct and the necessary directories are writable. |
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| 397 | */ |
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| 398 | private function validateDirectoryStructure() |
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| 399 | { |
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| 400 | if (is_null($this->service->getCertDir())) { |
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| 401 | $this->errors[] = _t(self::class . '.ERR_CERT_DIR_MISSING'); |
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| 402 | } elseif (!$this->isReadable($this->service->getCertDir())) { |
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| 403 | $this->errors[] = _t( |
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| 404 | self::class . '.ERR_CERT_DIR_NOT_READABLE', |
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| 405 | '', |
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| 406 | '', |
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| 407 | array('dir' => $this->service->getCertDir()) |
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| 408 | ); |
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| 409 | } |
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| 410 | } |
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| 411 | |||
| 412 | /** |
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| 413 | * Ensures that the required metadata is filled out correctly in the realme configuration. |
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| 414 | */ |
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| 415 | private function validateMetadata() |
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| 416 | { |
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| 417 | if (is_null($this->service->getMetadataOrganisationName())) { |
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| 418 | $this->errors[] = _t(self::class . '.ERR_CONFIG_NO_ORGANISATION_NAME'); |
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| 419 | } |
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| 420 | |||
| 421 | if (is_null($this->service->getMetadataOrganisationDisplayName())) { |
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| 422 | $this->errors[] = _t(self::class . '.ERR_CONFIG_NO_ORGANISATION_DISPLAY_NAME'); |
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| 423 | } |
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| 424 | |||
| 425 | if (is_null($this->service->getMetadataOrganisationUrl())) { |
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| 426 | $this->errors[] = _t(self::class . '.ERR_CONFIG_NO_ORGANISATION_URL'); |
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| 427 | } |
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| 428 | |||
| 429 | $contact = $this->service->getMetadataContactSupport(); |
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| 430 | if (is_null($contact['company']) || is_null($contact['firstNames']) || is_null($contact['surname'])) { |
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| 431 | $this->errors[] = _t(self::class . '.ERR_CONFIG_NO_SUPPORT_CONTACT'); |
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| 432 | } |
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| 433 | } |
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| 434 | |||
| 435 | /** |
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| 436 | * Ensures the certificates are readable and that the service can sign and unencrypt using them |
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| 437 | */ |
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| 438 | private function validateCertificates() |
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| 457 | ); |
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| 458 | } |
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| 459 | } |
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| 460 | } |
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| 461 |
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