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better validation

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This commit is contained in:
Shish 2019-12-15 16:01:32 +00:00
parent 09b9901493
commit 7b7febea55
1 changed files with 21 additions and 8 deletions
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29
ext/alias_editor/main.php
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@ -106,15 +106,28 @@ class AliasEditor extends Extension
public function onAddAlias(AddAliasEvent $event)
{
global $database;
$pair = ["oldtag" => $event->oldtag, "newtag" => $event->newtag];
if ($database->get_row("SELECT * FROM aliases WHERE oldtag=:oldtag AND lower(newtag)=lower(:newtag)", $pair)) {
throw new AddAliasException("That alias already exists");
} elseif ($database->get_row("SELECT * FROM aliases WHERE oldtag=:newtag", ["newtag" => $event->newtag])) {
throw new AddAliasException("{$event->newtag} is itself an alias");
} else {
$database->execute("INSERT INTO aliases(oldtag, newtag) VALUES(:oldtag, :newtag)", $pair);
log_info("alias_editor", "Added alias for {$event->oldtag} -> {$event->newtag}", "Added alias");
$row = $database->get_row(
"SELECT * FROM aliases WHERE lower(oldtag)=lower(:oldtag)",
["oldtag"=>$event->oldtag]
);
if ($row) {
throw new AddAliasException("{$row['oldtag']} is already an alias for {$row['newtag']}");
}
$row = $database->get_row(
"SELECT * FROM aliases WHERE lower(oldtag)=lower(:newtag)",
["newtag" => $event->newtag]
);
if ($row) {
throw new AddAliasException("{$row['oldtag']} is itself an alias for {$row['newtag']}");
}
$database->execute(
"INSERT INTO aliases(oldtag, newtag) VALUES(:oldtag, :newtag)",
["oldtag" => $event->oldtag, "newtag" => $event->newtag]
);
log_info("alias_editor", "Added alias for {$event->oldtag} -> {$event->newtag}", "Added alias");
}
public function onPageSubNavBuilding(PageSubNavBuildingEvent $event)