silverstripe /
silverstripe-subsites
| Total Complexity | 67 |
| Total Lines | 359 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like LeftAndMainSubsites 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 LeftAndMainSubsites, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class LeftAndMainSubsites extends LeftAndMainExtension |
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| 31 | { |
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| 32 | private static $allowed_actions = ['CopyToSubsite']; |
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introduced
by
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| 33 | |||
| 34 | /** |
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| 35 | * Normally SubsiteID=0 on a DataObject means it is only accessible from the special "main site". |
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| 36 | * However in some situations SubsiteID=0 will be understood as a "globally accessible" object in which |
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| 37 | * case this property is set to true (i.e. in AssetAdmin). |
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| 38 | */ |
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| 39 | private static $treats_subsite_0_as_global = false; |
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| 40 | |||
| 41 | public function init() |
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| 42 | { |
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| 43 | Requirements::css('silverstripe/subsites:css/LeftAndMain_Subsites.css'); |
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| 44 | Requirements::javascript('silverstripe/subsites:javascript/LeftAndMain_Subsites.js'); |
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| 45 | Requirements::javascript('silverstripe/subsites:javascript/VirtualPage_Subsites.js'); |
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| 46 | } |
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| 47 | |||
| 48 | /** |
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| 49 | * Set the title of the CMS tree |
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| 50 | */ |
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| 51 | public function getCMSTreeTitle() |
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| 52 | { |
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| 53 | $subsite = Subsite::currentSubsite(); |
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| 54 | return $subsite ? Convert::raw2xml($subsite->Title) : _t(__CLASS__.'.SITECONTENTLEFT', 'Site Content'); |
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| 55 | } |
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| 56 | |||
| 57 | public function updatePageOptions(&$fields) |
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| 58 | { |
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| 59 | $fields->push(HiddenField::create('SubsiteID', 'SubsiteID', SubsiteState::singleton()->getSubsiteId())); |
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| 60 | } |
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| 61 | |||
| 62 | /** |
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| 63 | * Find all subsites accessible for current user on this controller. |
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| 64 | * |
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| 65 | * @param bool $includeMainSite |
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| 66 | * @param string $mainSiteTitle |
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| 67 | * @param null $member |
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| 68 | * @return ArrayList of <a href='psi_element://Subsite'>Subsite</a> instances. |
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| 69 | * instances. |
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| 70 | */ |
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| 71 | public function sectionSites($includeMainSite = true, $mainSiteTitle = 'Main site', $member = null) |
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| 72 | { |
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| 73 | if ($mainSiteTitle == 'Main site') { |
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| 74 | $mainSiteTitle = _t('Subsites.MainSiteTitle', 'Main site'); |
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| 75 | } |
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| 76 | |||
| 77 | // Rationalise member arguments |
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| 78 | if (!$member) { |
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| 79 | $member = Security::getCurrentUser(); |
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| 80 | } |
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| 81 | if (!$member) { |
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| 82 | return ArrayList::create(); |
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| 83 | } |
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| 84 | if (!is_object($member)) { |
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| 85 | $member = DataObject::get_by_id(Member::class, $member); |
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| 86 | } |
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| 87 | |||
| 88 | // Collect permissions - honour the LeftAndMain::required_permission_codes, current model requires |
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| 89 | // us to check if the user satisfies ALL permissions. Code partly copied from LeftAndMain::canView. |
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| 90 | $codes = []; |
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| 91 | $extraCodes = Config::inst()->get(get_class($this->owner), 'required_permission_codes'); |
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| 92 | if ($extraCodes !== false) { |
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| 93 | if ($extraCodes) { |
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| 94 | $codes = array_merge($codes, (array)$extraCodes); |
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| 95 | } else { |
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| 96 | $codes[] = sprintf('CMS_ACCESS_%s', get_class($this->owner)); |
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| 97 | } |
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| 98 | } else { |
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| 99 | // Check overriden - all subsites accessible. |
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| 100 | return Subsite::all_sites(); |
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| 101 | } |
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| 102 | |||
| 103 | // Find subsites satisfying all permissions for the Member. |
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| 104 | $codesPerSite = []; |
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| 105 | $sitesArray = []; |
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| 106 | foreach ($codes as $code) { |
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| 107 | $sites = Subsite::accessible_sites($code, $includeMainSite, $mainSiteTitle, $member); |
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| 108 | foreach ($sites as $site) { |
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| 109 | // Build the structure for checking how many codes match. |
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| 110 | $codesPerSite[$site->ID][$code] = true; |
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| 111 | |||
| 112 | // Retain Subsite objects for later. |
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| 113 | $sitesArray[$site->ID] = $site; |
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| 114 | } |
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| 115 | } |
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| 116 | |||
| 117 | // Find sites that satisfy all codes conjuncitvely. |
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| 118 | $accessibleSites = new ArrayList(); |
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| 119 | foreach ($codesPerSite as $siteID => $siteCodes) { |
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| 120 | if (count($siteCodes) == count($codes)) { |
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| 121 | $accessibleSites->push($sitesArray[$siteID]); |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | return $accessibleSites; |
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| 126 | } |
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| 127 | |||
| 128 | /* |
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| 129 | * Returns a list of the subsites accessible to the current user. |
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| 130 | * It's enough for any section to be accessible for the section to be included. |
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| 131 | */ |
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| 132 | public function Subsites() |
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| 133 | { |
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| 134 | return Subsite::all_accessible_sites(); |
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| 135 | } |
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| 136 | |||
| 137 | /* |
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| 138 | * Generates a list of subsites with the data needed to |
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| 139 | * produce a dropdown site switcher |
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| 140 | * @return ArrayList |
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| 141 | */ |
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| 142 | |||
| 143 | public function ListSubsites() |
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| 144 | { |
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| 145 | $list = $this->Subsites(); |
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| 146 | $currentSubsiteID = SubsiteState::singleton()->getSubsiteId(); |
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| 147 | |||
| 148 | if ($list == null || $list->count() == 1 && $list->first()->DefaultSite == true) { |
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| 149 | return false; |
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| 150 | } |
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| 151 | |||
| 152 | Requirements::javascript('silverstripe/subsites:javascript/LeftAndMain_Subsites.js'); |
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| 153 | |||
| 154 | $output = ArrayList::create(); |
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| 155 | |||
| 156 | foreach ($list as $subsite) { |
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| 157 | $currentState = $subsite->ID == $currentSubsiteID ? 'selected' : ''; |
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| 158 | |||
| 159 | $output->push(ArrayData::create([ |
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| 160 | 'CurrentState' => $currentState, |
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| 161 | 'ID' => $subsite->ID, |
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| 162 | 'Title' => Convert::raw2xml($subsite->Title) |
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| 163 | ])); |
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| 164 | } |
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| 165 | |||
| 166 | return $output; |
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| 167 | } |
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| 168 | |||
| 169 | public function alternateMenuDisplayCheck($controllerName) |
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| 170 | { |
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| 171 | if (!class_exists($controllerName)) { |
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| 172 | return false; |
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| 173 | } |
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| 174 | |||
| 175 | // Don't display SubsiteXHRController |
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| 176 | if (singleton($controllerName) instanceof SubsiteXHRController) { |
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| 177 | return false; |
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| 178 | } |
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| 179 | |||
| 180 | // Check subsite support. |
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| 181 | if (SubsiteState::singleton()->getSubsiteId() == 0) { |
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| 182 | // Main site always supports everything. |
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| 183 | return true; |
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| 184 | } |
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| 185 | |||
| 186 | // It's not necessary to check access permissions here. Framework calls canView on the controller, |
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| 187 | // which in turn uses the Permission API which is augmented by our GroupSubsites. |
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| 188 | $controller = singleton($controllerName); |
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| 189 | return $controller->hasMethod('subsiteCMSShowInMenu') && $controller->subsiteCMSShowInMenu(); |
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| 190 | } |
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| 191 | |||
| 192 | public function CanAddSubsites() |
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| 193 | { |
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| 194 | return Permission::check('ADMIN', 'any', null, 'all'); |
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| 195 | } |
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| 196 | |||
| 197 | /** |
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| 198 | * Helper for testing if the subsite should be adjusted. |
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| 199 | * @param string $adminClass |
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| 200 | * @param int $recordSubsiteID |
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| 201 | * @param int $currentSubsiteID |
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| 202 | * @return bool |
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| 203 | */ |
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| 204 | public function shouldChangeSubsite($adminClass, $recordSubsiteID, $currentSubsiteID) |
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| 205 | { |
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| 206 | if (Config::inst()->get($adminClass, 'treats_subsite_0_as_global') && $recordSubsiteID == 0) { |
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| 207 | return false; |
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| 208 | } |
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| 209 | if ($recordSubsiteID != $currentSubsiteID) { |
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| 210 | return true; |
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| 211 | } |
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| 212 | return false; |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * Check if the current controller is accessible for this user on this subsite. |
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| 217 | */ |
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| 218 | public function canAccess() |
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| 219 | { |
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| 220 | // Admin can access everything, no point in checking. |
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| 221 | $member = Security::getCurrentUser(); |
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| 222 | if ($member |
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| 223 | && (Permission::checkMember($member, 'ADMIN') // 'Full administrative rights' |
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| 224 | || Permission::checkMember($member, 'CMS_ACCESS_LeftAndMain') // 'Access to all CMS sections' |
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| 225 | ) |
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| 226 | ) { |
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| 227 | return true; |
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| 228 | } |
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| 229 | |||
| 230 | // Check if we have access to current section on the current subsite. |
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| 231 | $accessibleSites = $this->owner->sectionSites(true, 'Main site', $member); |
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| 232 | return $accessibleSites->count() && $accessibleSites->find('ID', SubsiteState::singleton()->getSubsiteId()); |
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| 233 | } |
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| 234 | |||
| 235 | /** |
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| 236 | * Prevent accessing disallowed resources. This happens after onBeforeInit has executed, |
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| 237 | * so all redirections should've already taken place. |
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| 238 | */ |
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| 239 | public function alternateAccessCheck() |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * Redirect the user to something accessible if the current section/subsite is forbidden. |
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| 246 | * |
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| 247 | * This is done via onBeforeInit as it needs to be done before the LeftAndMain::init has a |
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| 248 | * chance to forbids access via alternateAccessCheck. |
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| 249 | * |
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| 250 | * If we need to change the subsite we force the redirection to /admin/ so the frontend is |
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| 251 | * fully re-synchronised with the internal session. This is better than risking some panels |
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| 252 | * showing data from another subsite. |
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| 253 | */ |
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| 254 | public function onBeforeInit() |
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| 255 | { |
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| 256 | $request = Controller::curr()->getRequest(); |
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| 257 | $session = $request->getSession(); |
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| 258 | |||
| 259 | $state = SubsiteState::singleton(); |
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| 260 | |||
| 261 | // FIRST, check if we need to change subsites due to the URL. |
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| 262 | |||
| 263 | // Catch forced subsite changes that need to cause CMS reloads. |
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| 264 | if ($request->getVar('SubsiteID') !== null) { |
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| 265 | // Clear current page when subsite changes (or is set for the first time) |
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| 266 | if ($state->getSubsiteIdWasChanged()) { |
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| 267 | // sessionNamespace() is protected - see for info |
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| 268 | $override = $this->owner->config()->get('session_namespace'); |
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| 269 | $sessionNamespace = $override ? $override : get_class($this->owner); |
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| 270 | $session->clear($sessionNamespace . '.currentPage'); |
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| 271 | } |
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| 272 | |||
| 273 | // Subsite ID has already been set to the state via InitStateMiddleware. If the user cannot view |
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| 274 | // the current page, or we're in the context of editing a specific page, redirect to the admin landing |
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| 275 | // section to prevent a loop of re-loading the original subsite for the current page. |
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| 276 | if (!$this->owner->canView() || Controller::curr() instanceof CMSPageEditController) { |
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| 277 | return $this->owner->redirect(AdminRootController::config()->get('url_base') . '/'); |
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| 278 | } |
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| 279 | |||
| 280 | // Redirect to clear the current page, retaining the current URL parameters |
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| 281 | return $this->owner->redirect( |
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| 282 | Controller::join_links($this->owner->Link(), ...array_values($this->owner->getURLParams())) |
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| 283 | ); |
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| 284 | } |
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| 285 | |||
| 286 | // Automatically redirect the session to appropriate subsite when requesting a record. |
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| 287 | // This is needed to properly initialise the session in situations where someone opens the CMS via a link. |
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| 288 | $record = $this->owner->currentPage(); |
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| 289 | if ($record |
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| 290 | && isset($record->SubsiteID, $this->owner->urlParams['ID']) |
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| 291 | && is_numeric($record->SubsiteID) |
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| 292 | && $this->shouldChangeSubsite( |
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| 293 | get_class($this->owner), |
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| 294 | $record->SubsiteID, |
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| 295 | SubsiteState::singleton()->getSubsiteId() |
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| 296 | ) |
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| 297 | ) { |
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| 298 | // Update current subsite |
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| 299 | $canViewElsewhere = SubsiteState::singleton()->withState(function ($newState) use ($record) { |
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| 300 | $newState->setSubsiteId($record->SubsiteID); |
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| 301 | |||
| 302 | if ($this->owner->canView(Security::getCurrentUser())) { |
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| 303 | return true; |
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| 304 | } |
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| 305 | return false; |
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| 306 | }); |
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| 307 | |||
| 308 | if ($canViewElsewhere) { |
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| 309 | // Redirect to clear the current page |
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| 310 | return $this->owner->redirect( |
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| 311 | Controller::join_links($this->owner->Link('show'), $record->ID, '?SubsiteID=' . $record->SubsiteID) |
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| 312 | ); |
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| 313 | } |
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| 314 | // Redirect to the default CMS section |
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| 315 | return $this->owner->redirect(AdminRootController::config()->get('url_base') . '/'); |
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| 316 | } |
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| 317 | |||
| 318 | // SECOND, check if we need to change subsites due to lack of permissions. |
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| 319 | |||
| 320 | if (!$this->owner->canAccess()) { |
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| 321 | $member = Security::getCurrentUser(); |
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| 322 | |||
| 323 | // Current section is not accessible, try at least to stick to the same subsite. |
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| 324 | $menu = CMSMenu::get_menu_items(); |
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| 325 | foreach ($menu as $candidate) { |
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| 326 | if ($candidate->controller && $candidate->controller != get_class($this->owner)) { |
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| 327 | $accessibleSites = singleton($candidate->controller)->sectionSites(true, 'Main site', $member); |
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| 328 | if ($accessibleSites->count() |
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| 329 | && $accessibleSites->find('ID', SubsiteState::singleton()->getSubsiteId()) |
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| 330 | ) { |
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| 331 | // Section is accessible, redirect there. |
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| 332 | return $this->owner->redirect(singleton($candidate->controller)->Link()); |
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| 333 | } |
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| 334 | } |
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| 335 | } |
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| 336 | |||
| 337 | // If no section is available, look for other accessible subsites. |
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| 338 | foreach ($menu as $candidate) { |
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| 339 | if ($candidate->controller) { |
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| 340 | $accessibleSites = singleton($candidate->controller)->sectionSites(true, 'Main site', $member); |
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| 341 | if ($accessibleSites->count()) { |
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| 342 | Subsite::changeSubsite($accessibleSites->First()->ID); |
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| 343 | return $this->owner->redirect(singleton($candidate->controller)->Link()); |
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| 344 | } |
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| 345 | } |
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| 346 | } |
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| 347 | |||
| 348 | // We have not found any accessible section or subsite. User should be denied access. |
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| 349 | return Security::permissionFailure($this->owner); |
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| 350 | } |
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| 351 | |||
| 352 | // Current site is accessible. Allow through. |
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| 353 | return; |
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| 354 | } |
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| 355 | |||
| 356 | public function augmentNewSiteTreeItem(&$item) |
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| 357 | { |
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| 358 | $request = Controller::curr()->getRequest(); |
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| 359 | $item->SubsiteID = $request->postVar('SubsiteID') ?: SubsiteState::singleton()->getSubsiteId(); |
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| 360 | } |
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| 361 | |||
| 362 | public function onAfterSave($record) |
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| 368 | ); |
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| 369 | } |
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| 370 | } |
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| 371 | |||
| 372 | /** |
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| 373 | * @param array $data |
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| 374 | * @param Form $form |
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| 375 | */ |
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| 376 | public function copytosubsite($data, $form) |
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| 389 | )); |
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| 390 | } |
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| 391 | } |
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| 392 |
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