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only render the update trigger if there are any updatable entity aliases

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This commit is contained in:
Michael Hoennig 2024-02-29 11:19:35 +01:00
parent 5276471adb
commit bc33f1fd9d
1 changed files with 106 additions and 46 deletions
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152
src/main/java/net/hostsharing/hsadminng/rbac/rbacdef/RolesGrantsAndPermissionsGenerator.java
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@ -6,8 +6,10 @@ import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Stream;
import static java.util.stream.Collectors.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toSet;
import static net.hostsharing.hsadminng.rbac.rbacdef.PostgresTriggerReference.NEW;
import static net.hostsharing.hsadminng.rbac.rbacdef.PostgresTriggerReference.OLD;
import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.RbacGrantDefinition.GrantType.*;
@ -32,7 +34,7 @@ class RolesGrantsAndPermissionsGenerator {
.filter(RbacView.RbacGrantDefinition::isToCreate)
.collect(toSet()));
this.liquibaseTagPrefix = liquibaseTagPrefix;
entityClass = rbacDef.getRootEntityAlias().entityClass();
simpleEntityVarName = rbacDef.getRootEntityAlias().simpleName();
simpleEntityName = capitalize(simpleEntityVarName);
@ -43,6 +45,9 @@ class RolesGrantsAndPermissionsGenerator {
generateHeader(plPgSql);
generateTriggerFunction(plPgSql);
generateInsertTrigger(plPgSql);
if (hasAnyUpdatableEntityAliases()) {
generateUpdateTrigger(plPgSql);
}
generateFooter(plPgSql);
}
@ -61,7 +66,7 @@ class RolesGrantsAndPermissionsGenerator {
A Creates the roles, grants and permission for the AFTER INSERT TRIGGER.
*/
create or replace procedure createRbacRolesFor${simpleEntityName}(
create or replace procedure buildRbacSystemFor${simpleEntityName}(
TG_OP text,
OLD ${rawTableName},
NEW ${rawTableName}
@ -73,36 +78,45 @@ class RolesGrantsAndPermissionsGenerator {
.replace("${rawTableName}", rawTableName));
plPgSql.indented(() -> {
rbacDef.getEntityAliases().values().stream()
.filter((ea) -> !rbacDef.isRootEntityAlias(ea))
.filter((ea) -> ea.fetchSql() != null)
updatableEntityAliases()
.forEach((ea) -> {
plPgSql.writeLn( entityRefVar(NEW, ea) + " " + getRawTableName(ea.entityClass()) + ";");
plPgSql.writeLn(entityRefVar(NEW, ea) + " " + getRawTableName(ea.entityClass()) + ";");
});
});
});
plPgSql.indented(() -> {
plPgSql.writeLn("begin");
generateCreateRolesAndGrantsAfterInsert(plPgSql);
generateUpdateRolesAndGrantsAfterUpdate(plPgSql);
if (hasAnyUpdatableEntityAliases()) {
generateUpdateRolesAndGrantsAfterUpdate(plPgSql);
}
plPgSql.writeLn("""
else
raise exception 'invalid usage of TRIGGER';
end if;
""");
plPgSql.ensureEmptyLine();
plPgSql.writeLn("end; $$;");
});
plPgSql.writeLn("end; $$;");
plPgSql.writeLn();
}
private boolean hasAnyUpdatableEntityAliases() {
return updatableEntityAliases().anyMatch(e -> true);
}
private void generateCreateRolesAndGrantsAfterInsert(final StringWriter plPgSql) {
plPgSql.ensureEmptyLine();
plPgSql.writeLn("if TG_OP = 'INSERT' then");
plPgSql.indented(() -> {
rbacDef.getEntityAliases().values().stream()
.filter((ea) -> !rbacDef.isRootEntityAlias(ea))
.filter((ea) -> ea.fetchSql() != null)
updatableEntityAliases()
.forEach((ea) -> {
plPgSql.writeLn( ea.fetchSql().sql.replace("${ref}", NEW.name()) + " into " + entityRefVar(NEW, ea) + ";");
});
plPgSql.writeLn(
ea.fetchSql().sql.replace("${ref}", NEW.name()) + " into " + entityRefVar(NEW, ea) + ";");
});
createRolesWithGrantsSql(plPgSql, OWNER);
createRolesWithGrantsSql(plPgSql, ADMIN);
@ -114,13 +128,22 @@ class RolesGrantsAndPermissionsGenerator {
generateGrants(plPgSql, ROLE_TO_ROLE);
generateGrants(plPgSql, PERM_TO_ROLE);
});
}
plPgSql.writeLn("end if;");
}
private Stream<RbacView.EntityAlias> referencedEntityAliases() {
return rbacDef.getEntityAliases().values().stream()
.filter((ea) -> !rbacDef.isRootEntityAlias(ea))
.filter((ea) -> ea.fetchSql() != null);
}
private Stream<RbacView.EntityAlias> updatableEntityAliases() {
return referencedEntityAliases()
.filter(ea -> rbacDef.getUpdatableColumns().contains(ea.dependsOnColum().column) );
}
private void generateUpdateRolesAndGrantsAfterUpdate(final StringWriter plPgSql) {
plPgSql.ensureEmptyLine();
plPgSql.writeLn("if TG_OP = 'UPDATE' then");
plPgSql.writeLn("elsif TG_OP = 'UPDATE' then");
plPgSql.indented(() -> {
@ -128,7 +151,8 @@ class RolesGrantsAndPermissionsGenerator {
.filter(ea -> !rbacDef.isRootEntityAlias(ea))
.filter(ea -> ea.fetchSql() != null)
.forEach(ea -> {
plPgSql.writeLn( ea.fetchSql().sql.replace("${ref}", OLD.name()) + " into " + entityRefVar(OLD, ea) + ";");
plPgSql.writeLn(
ea.fetchSql().sql.replace("${ref}", OLD.name()) + " into " + entityRefVar(OLD, ea) + ";");
});
rbacDef.getEntityAliases().values().stream()
@ -147,8 +171,6 @@ class RolesGrantsAndPermissionsGenerator {
plPgSql.writeLn("end if;");
});
});
plPgSql.writeLn("end if;");
}
private boolean isUpdatable(final RbacView.Column c) {
@ -160,7 +182,8 @@ class RolesGrantsAndPermissionsGenerator {
.filter(RbacView.RbacGrantDefinition::isToCreate)
.filter(g -> g.dependsOnColumn(columnName))
.forEach(g -> {
plPgSql.writeLn("-- TODO: " + g);
plPgSql.writeLn("-- TODO: revoke " + g);
plPgSql.writeLn(generateGrant(g));
});
}
@ -177,11 +200,11 @@ class RolesGrantsAndPermissionsGenerator {
return switch (grantDef.grantType()) {
case ROLE_TO_USER -> throw new IllegalArgumentException("unexpected grant");
case ROLE_TO_ROLE -> "call grantRoleToRole(${subRoleRef}, ${superRoleRef}));"
.replace("${subRoleRef}", roleRef(NEW, grantDef.getSubRoleDef()) )
.replace("${superRoleRef}", roleRef(NEW, grantDef.getSuperRoleDef()) );
.replace("${subRoleRef}", roleRef(NEW, grantDef.getSubRoleDef()))
.replace("${superRoleRef}", roleRef(NEW, grantDef.getSuperRoleDef()));
case PERM_TO_ROLE -> "call grantPermissionsToRole(${permRef}, ${superRoleRef}));"
.replace("${permRef}", permRef(NEW, grantDef.getPermDef()) )
.replace("${superRoleRef}", roleRef(NEW, grantDef.getSuperRoleDef()) );
.replace("${permRef}", permRef(NEW, grantDef.getPermDef()))
.replace("${superRoleRef}", roleRef(NEW, grantDef.getSuperRoleDef()));
};
}
@ -198,10 +221,10 @@ class RolesGrantsAndPermissionsGenerator {
}
private String roleRef(final PostgresTriggerReference rootRefVar, final RbacView.RbacRoleDefinition roleDef) {
if ( roleDef == null ) {
if (roleDef == null) {
System.out.println("null");
}
if ( roleDef.getEntityAlias().isGlobal()) {
if (roleDef.getEntityAlias().isGlobal()) {
return "globalAdmin()";
}
final String entityRefVar = entityRefVar(rootRefVar, roleDef.getEntityAlias());
@ -217,16 +240,16 @@ class RolesGrantsAndPermissionsGenerator {
private void createRolesWithGrantsSql(final StringWriter plPgSql, final RbacView.Role role) {
final var isToCreate = rbacDef.getRoleDefs().stream()
.filter(roleDef -> rbacDef.isRootEntityAlias(roleDef.getEntityAlias()) && roleDef.getRole() == role )
.findFirst().map(RbacView.RbacRoleDefinition::isToCreate).orElse(false);
final var isToCreate = rbacDef.getRoleDefs().stream()
.filter(roleDef -> rbacDef.isRootEntityAlias(roleDef.getEntityAlias()) && roleDef.getRole() == role)
.findFirst().map(RbacView.RbacRoleDefinition::isToCreate).orElse(false);
if (!isToCreate) {
return;
}
plPgSql.writeLn();
plPgSql.writeLn("perform createRoleWithGrants(");
plPgSql.indented( () -> {
plPgSql.indented(() -> {
plPgSql.writeLn("${simpleVarName)${roleSuffix}(NEW),"
.replace("${simpleVarName)", simpleEntityVarName)
.replace("${roleSuffix}", capitalize(role.roleName())));
@ -268,7 +291,7 @@ class RolesGrantsAndPermissionsGenerator {
.map(RbacView.Permission::permission)
.map(p -> "'" + p + "'")
.toList();
plPgSql.indented( () ->
plPgSql.indented(() ->
plPgSql.writeLn("permissions => array[" + joinArrayElements(arrayElements, 3) + "],\n"));
rbacGrants.removeAll(permissionGrantsForRole);
}
@ -306,31 +329,39 @@ class RolesGrantsAndPermissionsGenerator {
: arrayElements.stream().collect(joining(",\n\t", "\n\t", ""));
}
private Set<RbacView.RbacGrantDefinition> findPermissionsGrantsForRole(final RbacView.EntityAlias entityAlias, final RbacView.Role role) {
private Set<RbacView.RbacGrantDefinition> findPermissionsGrantsForRole(
final RbacView.EntityAlias entityAlias,
final RbacView.Role role) {
final var roleDef = rbacDef.findRbacRole(entityAlias, role);
return rbacGrants.stream()
.filter(g -> g.grantType() == PERM_TO_ROLE && g.getSuperRoleDef()==roleDef )
.filter(g -> g.grantType() == PERM_TO_ROLE && g.getSuperRoleDef() == roleDef)
.collect(toSet());
}
private Set<RbacView.RbacGrantDefinition> findGrantsToUserForRole(final RbacView.EntityAlias entityAlias, final RbacView.Role role) {
private Set<RbacView.RbacGrantDefinition> findGrantsToUserForRole(
final RbacView.EntityAlias entityAlias,
final RbacView.Role role) {
final var roleDef = rbacDef.findRbacRole(entityAlias, role);
return rbacGrants.stream()
.filter(g -> g.grantType() == ROLE_TO_USER && g.getSubRoleDef() == roleDef )
.filter(g -> g.grantType() == ROLE_TO_USER && g.getSubRoleDef() == roleDef)
.collect(toSet());
}
private Set<RbacView.RbacGrantDefinition> findIncomingSuperRolesForRole(final RbacView.EntityAlias entityAlias, final RbacView.Role role) {
private Set<RbacView.RbacGrantDefinition> findIncomingSuperRolesForRole(
final RbacView.EntityAlias entityAlias,
final RbacView.Role role) {
final var roleDef = rbacDef.findRbacRole(entityAlias, role);
return rbacGrants.stream()
.filter(g -> g.grantType() == ROLE_TO_ROLE && g.getSubRoleDef()==roleDef )
.filter(g -> g.grantType() == ROLE_TO_ROLE && g.getSubRoleDef() == roleDef)
.collect(toSet());
}
private Set<RbacView.RbacGrantDefinition> findOutgoingSuperRolesForRole(final RbacView.EntityAlias entityAlias, final RbacView.Role role) {
private Set<RbacView.RbacGrantDefinition> findOutgoingSuperRolesForRole(
final RbacView.EntityAlias entityAlias,
final RbacView.Role role) {
final var roleDef = rbacDef.findRbacRole(entityAlias, role);
return rbacGrants.stream()
.filter(g -> g.grantType() == ROLE_TO_ROLE && g.getSuperRoleDef()==roleDef )
.filter(g -> g.grantType() == ROLE_TO_ROLE && g.getSuperRoleDef() == roleDef)
.filter(g -> g.getSubRoleDef().getEntityAlias() != entityAlias)
.collect(toSet());
}
@ -341,20 +372,47 @@ class RolesGrantsAndPermissionsGenerator {
An AFTER INSERT TRIGGER which creates the role structure for a new ${simpleEntityName}
*/
create or replace function createRbacRolesFor${simpleEntityName}_tf()
create or replace function insertTriggerFor${simpleEntityName}_tf()
returns trigger
language plpgsql
strict as $$
begin
call createRbacRolesFor${simpleEntityName}(TG_OP, OLD, NEW);
call buildRbacSystemFor${simpleEntityName}(TG_OP, OLD, NEW);
return NEW;
end; $$;
create trigger createRbacRolesFor${simpleEntityName}_tg
create trigger insertTriggerFor${simpleEntityName}_tg
after insert
on ${rawTableName}
for each row
execute procedure createRbacRolesFor${simpleEntityName}_tf();
execute procedure insertTriggerFor${simpleEntityName}_tf();
--//
"""
.replace("${simpleEntityName}", simpleEntityName)
.replace("${rawTableName}", rawTableName)
);
}
private void generateUpdateTrigger(final StringWriter plPgSql) {
plPgSql.writeLn("""
/*
An AFTER UPDATE TRIGGER which re-wires the grant structure for an updated ${simpleEntityName}
*/
create or replace function updateTriggerFor${simpleEntityName}_tf()
returns trigger
language plpgsql
strict as $$
begin
call buildRbacSystemFor${simpleEntityName}(TG_OP, OLD, NEW);
return NEW;
end; $$;
create trigger updateTriggerFor${simpleEntityName}_tg
after update
on ${rawTableName}
for each row
execute procedure updateTriggerFor${simpleEntityName}_tf();
--//
"""
.replace("${simpleEntityName}", simpleEntityName)
@ -385,7 +443,9 @@ class RolesGrantsAndPermissionsGenerator {
return uncapitalize(roleDef.getEntityAlias().simpleName()) + capitalize(roleDef.getRole().roleName());
}
private static String toTriggerReference(final PostgresTriggerReference triggerRef, final RbacView.EntityAlias entityAlias) {
private static String toTriggerReference(
final PostgresTriggerReference triggerRef,
final RbacView.EntityAlias entityAlias) {
return triggerRef.name().toLowerCase() + capitalize(entityAlias.aliasName());
}
}