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phorge/src/applications/herald/controller/HeraldRuleController.php
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HeraldRuleController.php
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<?php
final class HeraldRuleController extends HeraldController {
private $id;
private $filter;
public function willProcessRequest(array $data) {
$this->id = (int)idx($data, 'id');
}
public function processRequest() {
$request = $this->getRequest();
$user = $request->getUser();
$content_type_map = HeraldContentTypeConfig::getContentTypeMap();
$rule_type_map = HeraldRuleTypeConfig::getRuleTypeMap();
if ($this->id) {
$rule = id(new HeraldRule())->load($this->id);
if (!$rule) {
return new Aphront404Response();
}
if (!$this->canEditRule($rule, $user)) {
throw new Exception("You don't own this rule and can't edit it.");
}
} else {
$rule = new HeraldRule();
$rule->setAuthorPHID($user->getPHID());
$rule->setMustMatchAll(true);
$content_type = $request->getStr('content_type');
if (!isset($content_type_map[$content_type])) {
$content_type = HeraldContentTypeConfig::CONTENT_TYPE_DIFFERENTIAL;
}
$rule->setContentType($content_type);
$rule_type = $request->getStr('rule_type');
if (!isset($rule_type_map[$rule_type])) {
$rule_type = HeraldRuleTypeConfig::RULE_TYPE_GLOBAL;
}
$rule->setRuleType($rule_type);
}
$local_version = id(new HeraldRule())->getConfigVersion();
if ($rule->getConfigVersion() > $local_version) {
throw new Exception(
"This rule was created with a newer version of Herald. You can not ".
"view or edit it in this older version. Upgrade your Phabricator ".
"deployment.");
}
// Upgrade rule version to our version, since we might add newly-defined
// conditions, etc.
$rule->setConfigVersion($local_version);
$rule_conditions = $rule->loadConditions();
$rule_actions = $rule->loadActions();
$rule->attachConditions($rule_conditions);
$rule->attachActions($rule_actions);
$e_name = true;
$errors = array();
if ($request->isFormPost() && $request->getStr('save')) {
list($e_name, $errors) = $this->saveRule($rule, $request);
if (!$errors) {
$uri = '/herald/view/'.
$rule->getContentType().'/'.
$rule->getRuleType().'/';
return id(new AphrontRedirectResponse())->setURI($uri);
}
}
if ($errors) {
$error_view = new AphrontErrorView();
$error_view->setTitle('Form Errors');
$error_view->setErrors($errors);
} else {
$error_view = null;
}
$must_match_selector = $this->renderMustMatchSelector($rule);
$repetition_selector = $this->renderRepetitionSelector($rule);
$handles = $this->loadHandlesForRule($rule);
require_celerity_resource('herald-css');
$content_type_name = $content_type_map[$rule->getContentType()];
$rule_type_name = $rule_type_map[$rule->getRuleType()];
$form = id(new AphrontFormView())
->setUser($user)
->setID('herald-rule-edit-form')
->addHiddenInput('content_type', $rule->getContentType())
->addHiddenInput('rule_type', $rule->getRuleType())
->addHiddenInput('save', 1)
->appendChild(
// Build this explicitly (instead of using addHiddenInput())
// so we can add a sigil to it.
javelin_tag(
'input',
array(
'type' => 'hidden',
'name' => 'rule',
'sigil' => 'rule',
)))
->appendChild(
id(new AphrontFormTextControl())
->setLabel('Rule Name')
->setName('name')
->setError($e_name)
->setValue($rule->getName()));
$form
->appendChild(
id(new AphrontFormMarkupControl())
->setValue(hsprintf(
"This <strong>%s</strong> rule triggers for <strong>%s</strong>.",
$rule_type_name,
$content_type_name)))
->appendChild(
id(new AphrontFormInsetView())
->setTitle('Conditions')
->setRightButton(javelin_tag(
'a',
array(
'href' => '#',
'class' => 'button green',
'sigil' => 'create-condition',
'mustcapture' => true
),
'Create New Condition'))
->setDescription(
hsprintf('When %s these conditions are met:', $must_match_selector))
->setContent(javelin_tag(
'table',
array(
'sigil' => 'rule-conditions',
'class' => 'herald-condition-table'
),
'')))
->appendChild(
id(new AphrontFormInsetView())
->setTitle('Action')
->setRightButton(javelin_tag(
'a',
array(
'href' => '#',
'class' => 'button green',
'sigil' => 'create-action',
'mustcapture' => true,
),
'Create New Action'))
->setDescription(hsprintf(
'Take these actions %s this rule matches:',
$repetition_selector))
->setContent(javelin_tag(
'table',
array(
'sigil' => 'rule-actions',
'class' => 'herald-action-table',
),
'')))
->appendChild(
id(new AphrontFormSubmitControl())
->setValue('Save Rule')
->addCancelButton('/herald/view/'.$rule->getContentType().'/'));
$this->setupEditorBehavior($rule, $handles);
$panel = new AphrontPanelView();
$panel->setHeader(
$rule->getID()
? pht('Edit Herald Rule')
: pht('Create Herald Rule'));
$panel->appendChild($form);
$panel->setNoBackground();
$nav = $this->renderNav();
$nav->selectFilter(
'view/'.$rule->getContentType().'/'.$rule->getRuleType());
$nav->appendChild(
array(
$error_view,
$panel,
));
return $this->buildStandardPageResponse(
$nav,
array(
'title' => 'Edit Rule',
));
}
private function canEditRule($rule, $user) {
return
($user->getIsAdmin()) ||
($rule->getRuleType() == HeraldRuleTypeConfig::RULE_TYPE_GLOBAL) ||
($rule->getAuthorPHID() == $user->getPHID());
}
private function saveRule($rule, $request) {
$rule->setName($request->getStr('name'));
$rule->setMustMatchAll(($request->getStr('must_match') == 'all'));
$repetition_policy_param = $request->getStr('repetition_policy');
$rule->setRepetitionPolicy(
HeraldRepetitionPolicyConfig::toInt($repetition_policy_param));
$e_name = true;
$errors = array();
if (!strlen($rule->getName())) {
$e_name = "Required";
$errors[] = "Rule must have a name.";
}
$data = json_decode($request->getStr('rule'), true);
if (!is_array($data) ||
!$data['conditions'] ||
!$data['actions']) {
throw new Exception("Failed to decode rule data.");
}
$conditions = array();
foreach ($data['conditions'] as $condition) {
if ($condition === null) {
// We manage this as a sparse array on the client, so may receive
// NULL if conditions have been removed.
continue;
}
$obj = new HeraldCondition();
$obj->setFieldName($condition[0]);
$obj->setFieldCondition($condition[1]);
if (is_array($condition[2])) {
$obj->setValue(array_keys($condition[2]));
} else {
$obj->setValue($condition[2]);
}
$cond_type = $obj->getFieldCondition();
if ($cond_type == HeraldConditionConfig::CONDITION_REGEXP) {
if (@preg_match($obj->getValue(), '') === false) {
$errors[] =
'The regular expression "'.$obj->getValue().'" is not valid. '.
'Regular expressions must have enclosing characters (e.g. '.
'"@/path/to/file@", not "/path/to/file") and be syntactically '.
'correct.';
}
}
if ($cond_type == HeraldConditionConfig::CONDITION_REGEXP_PAIR) {
$json = json_decode($obj->getValue(), true);
if (!is_array($json)) {
$errors[] =
'The regular expression pair "'.$obj->getValue().'" is not '.
'valid JSON. Enter a valid JSON array with two elements.';
} else {
if (count($json) != 2) {
$errors[] =
'The regular expression pair "'.$obj->getValue().'" must have '.
'exactly two elements.';
} else {
$key_regexp = array_shift($json);
$val_regexp = array_shift($json);
if (@preg_match($key_regexp, '') === false) {
$errors[] =
'The first regexp, "'.$key_regexp.'" in the regexp pair '.
'is not a valid regexp.';
}
if (@preg_match($val_regexp, '') === false) {
$errors[] =
'The second regexp, "'.$val_regexp.'" in the regexp pair '.
'is not a valid regexp.';
}
}
}
}
$conditions[] = $obj;
}
$actions = array();
foreach ($data['actions'] as $action) {
if ($action === null) {
// Sparse on the client; removals can give us NULLs.
continue;
}
if (!isset($action[1])) {
// Legitimate for any action which doesn't need a target, like
// "Do nothing".
$action[1] = null;
}
$actions[] = HeraldActionConfig::willSaveAction($rule->getRuleType(),
$rule->getAuthorPHID(),
$action);
}
$rule->attachConditions($conditions);
$rule->attachActions($actions);
if (!$errors) {
try {
$edit_action = $rule->getID() ? 'edit' : 'create';
$rule->openTransaction();
$rule->save();
$rule->saveConditions($conditions);
$rule->saveActions($actions);
$rule->logEdit($request->getUser()->getPHID(), $edit_action);
$rule->saveTransaction();
} catch (AphrontQueryDuplicateKeyException $ex) {
$e_name = "Not Unique";
$errors[] = "Rule name is not unique. Choose a unique name.";
}
}
return array($e_name, $errors);
}
private function setupEditorBehavior($rule, $handles) {
$serial_conditions = array(
array('default', 'default', ''),
);
if ($rule->getConditions()) {
$serial_conditions = array();
foreach ($rule->getConditions() as $condition) {
$value = $condition->getValue();
if (is_array($value)) {
$value_map = array();
foreach ($value as $k => $fbid) {
$value_map[$fbid] = $handles[$fbid]->getName();
}
$value = $value_map;
}
$serial_conditions[] = array(
$condition->getFieldName(),
$condition->getFieldCondition(),
$value,
);
}
}
$serial_actions = array(
array('default', ''),
);
if ($rule->getActions()) {
$serial_actions = array();
foreach ($rule->getActions() as $action) {
switch ($action->getAction()) {
case HeraldActionConfig::ACTION_FLAG:
$current_value = $action->getTarget();
break;
default:
$target_map = array();
foreach ((array)$action->getTarget() as $fbid) {
$target_map[$fbid] = $handles[$fbid]->getName();
}
$current_value = $target_map;
break;
}
$serial_actions[] = array(
$action->getAction(),
$current_value,
);
}
}
$all_rules = $this->loadRulesThisRuleMayDependUpon($rule);
$all_rules = mpull($all_rules, 'getName', 'getID');
asort($all_rules);
$config_info = array();
$config_info['fields']
= HeraldFieldConfig::getFieldMapForContentType($rule->getContentType());
$config_info['conditions'] = HeraldConditionConfig::getConditionMap();
foreach ($config_info['fields'] as $field => $name) {
$config_info['conditionMap'][$field] = array_keys(
HeraldConditionConfig::getConditionMapForField($field));
}
foreach ($config_info['fields'] as $field => $fname) {
foreach ($config_info['conditions'] as $condition => $cname) {
$config_info['values'][$field][$condition] =
HeraldValueTypeConfig::getValueTypeForFieldAndCondition(
$field,
$condition);
}
}
$config_info['actions'] =
HeraldActionConfig::getActionMessageMap($rule->getContentType(),
$rule->getRuleType());
$config_info['rule_type'] = $rule->getRuleType();
foreach ($config_info['actions'] as $action => $name) {
$config_info['targets'][$action] =
HeraldValueTypeConfig::getValueTypeForAction($action,
$rule->getRuleType());
}
Javelin::initBehavior(
'herald-rule-editor',
array(
'root' => 'herald-rule-edit-form',
'conditions' => (object)$serial_conditions,
'actions' => (object)$serial_actions,
'template' => $this->buildTokenizerTemplates() + array(
'rules' => $all_rules,
'colors' => PhabricatorFlagColor::getColorNameMap(),
'defaultColor' => PhabricatorFlagColor::COLOR_BLUE,
),
'author' => array($rule->getAuthorPHID() =>
$handles[$rule->getAuthorPHID()]->getName()),
'info' => $config_info,
));
}
private function loadHandlesForRule($rule) {
$phids = array();
foreach ($rule->getActions() as $action) {
if (!is_array($action->getTarget())) {
continue;
}
foreach ($action->getTarget() as $target) {
$target = (array)$target;
foreach ($target as $phid) {
$phids[] = $phid;
}
}
}
foreach ($rule->getConditions() as $condition) {
$value = $condition->getValue();
if (is_array($value)) {
foreach ($value as $phid) {
$phids[] = $phid;
}
}
}
$phids[] = $rule->getAuthorPHID();
return $this->loadViewerHandles($phids);
}
/**
* Render the selector for the "When (all of | any of) these conditions are
* met:" element.
*/
private function renderMustMatchSelector($rule) {
return AphrontFormSelectControl::renderSelectTag(
$rule->getMustMatchAll() ? 'all' : 'any',
array(
'all' => 'all of',
'any' => 'any of',
),
array(
'name' => 'must_match',
));
}
/**
* Render the selector for "Take these actions (every time | only the first
* time) this rule matches..." element.
*/
private function renderRepetitionSelector($rule) {
// Make the selector for choosing how often this rule should be repeated
$repetition_policy = HeraldRepetitionPolicyConfig::toString(
$rule->getRepetitionPolicy());
$repetition_options = HeraldRepetitionPolicyConfig::getMapForContentType(
$rule->getContentType());
if (empty($repetition_options)) {
// default option is 'every time'
$repetition_selector = idx(
HeraldRepetitionPolicyConfig::getMap(),
HeraldRepetitionPolicyConfig::EVERY);
return $repetition_selector;
} else if (count($repetition_options) == 1) {
// if there's only 1 option, just pick it for the user
$repetition_selector = reset($repetition_options);
return $repetition_selector;
} else {
return AphrontFormSelectControl::renderSelectTag(
$repetition_policy,
$repetition_options,
array(
'name' => 'repetition_policy',
));
}
}
protected function buildTokenizerTemplates() {
$template = new AphrontTokenizerTemplateView();
$template = $template->render();
return array(
'source' => array(
'email' => '/typeahead/common/mailable/',
'user' => '/typeahead/common/users/',
'repository' => '/typeahead/common/repositories/',
'package' => '/typeahead/common/packages/',
'project' => '/typeahead/common/projects/',
),
'markup' => $template,
);
}
/**
* Load rules for the "Another Herald rule..." condition dropdown, which
* allows one rule to depend upon the success or failure of another rule.
*/
private function loadRulesThisRuleMayDependUpon(HeraldRule $rule) {
// Any rule can depend on a global rule.
$all_rules = id(new HeraldRuleQuery())
->withRuleTypes(array(HeraldRuleTypeConfig::RULE_TYPE_GLOBAL))
->withContentTypes(array($rule->getContentType()))
->execute();
if ($rule->getRuleType() == HeraldRuleTypeConfig::RULE_TYPE_PERSONAL) {
// Personal rules may depend upon your other personal rules.
$all_rules += id(new HeraldRuleQuery())
->withRuleTypes(array(HeraldRuleTypeConfig::RULE_TYPE_PERSONAL))
->withContentTypes(array($rule->getContentType()))
->withAuthorPHIDs(array($rule->getAuthorPHID()))
->execute();
}
// A rule can not depend upon itself.
unset($all_rules[$rule->getID()]);
return $all_rules;
}
}

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