diff options
Diffstat (limited to 'php/database.php')
| -rw-r--r-- | php/database.php | 150 |
1 files changed, 147 insertions, 3 deletions
diff --git a/php/database.php b/php/database.php index f472cbf..cfef823 100644 --- a/php/database.php +++ b/php/database.php @@ -2,6 +2,7 @@ require_once "configuration.php"; require_once "user.php"; require_once "misc.php"; +require_once "node.php"; /*handles database stuff*/ class Database @@ -37,6 +38,7 @@ require_once "misc.php"; $ret->user_id=$hold["user_id"]; $ret->username=$hold["username"]; $ret->email_address=$hold["email"]; + $ret->current_directory=$hold["home_directory"]; return $ret; }else { @@ -71,6 +73,141 @@ require_once "misc.php"; return false; } } + function get_home_id($user_id) + { + $statement=$this->pdo->prepare("select home_directory + from users + where user_id=:id + "); + $statement->bindParam(':id',$user_id); + + $ret=$statement->execute(PDO::FETCH_ASSOC); + return $ret["home_directory"]; + } + function get_node_id($name,$directory_id) + { + $hold=NULL; + $statement=NULL; + $ret=[]; + if($name != NULL) + { + if($directory_id!=NULL) + { + $statement=$this->pdo->prepare( + "select nl.node_id as id from node_links nl + inner join nodes n on n.node_id=nl.node_id + where name=:name and directory_id=:directory_id)"); + $statement->bindParam(':name',$name); + $statement->bindParam(':directory_id',$directory_id); + }else + { + /*get all node_ids with the name name*/ + $statement=$this->pdo->prepare("select node_id as id from nodes where name=:name"); + $statement->bindParam(':name',$name); + } + if($statement==NULL) + { + error_log("statement is null"); + exit(1); + } + }else { + $statement=$this->pdo->prepare("select node_id as id from node_links where directory_id=:dir_id"); + $statement->bindParam(':dir_id',$directory_id); + } + if($statement->execute()==false) + { + error_log("there is an error in the sql statement in get_node_id"); + exit(1); + } + + while($hold=$statement->fetch(PDO::FETCH_ASSOC)) + { + print_r($hold); + array_push($ret,$hold["id"]); + } + return $ret; + + } + function get_random_node_name(string $prefix) + { + do{ + $proposal=uniqid($prefix,true); + }while($this->get_node_id($proposal,NULL)!=NULL); + return $proposal; + } + /*returns NULL if node doesn't exist*/ + /*if name is NULL return all node ids in the directory*/ + /*if directory is NULL return all node ids with the name name*/ + /*if both are null return NULL*/ + /*returns node id*/ + function create_dangling_directory(): int + { + $dir_name=$this->get_random_node_name(""); + global $storage_root; + + $prep=$this->pdo->prepare("insert into nodes(is_directory,relative_path,name) values(true,:root,:name)"); + $prep->bindParam(':name',$dir_name); + $prep->bindParam(':root',$storage_root); + if($prep->execute()==false) + { + error_log("tried to create a dangling directory but sql statement failed. Fatal error!"); + exit(1); + } + + $id=$this->get_node_id($dir_name,NULL); + if(count($id)!=1) + { + error_log("created a dangling directory but couldn't find it afterward. Fatal error!"); + exit(1); + } + + //print count($id); + return $id[0]; + } + /*returns the file name as it must be in the filesystem*/ + function create_file_node(string $filename): string + { + global $storage_root; + $code=get_random_node_name(""); + if($filename==NULL)return false; + $prep=$this->pdo->prepare("insert into nodes(is_directory,relative_path,name,code) + values(false,:root,:name,:code) + "); + $prep->bindParam(':name',$filename); + $prep->bindParam(':root',$storage_root); + + $prep->bindParam(':code',$code); + if($prep->execute()==false) + { + error_log("could not upload file"); + /*not so quiet error*/ + return "error"; + } + return code; + } + function are_linked(int $directory_id,int $node_id): bool + { + $prepare=$this->pdo->prepare("select node_id + from node_links + where node_id=:node_id and directory_id=:dir_id + "); + $prepare->bindParam(':node_id',$node_id); + $prepare->bindParam(':dir_id',$directory_id); + if($prepare->execute()==false) + { + error_log("there is an sql error in are_linked"); + /*quiet error*/ + return false; + } + if(count($prepare->fetch(PDO::FETCH_ASSOC))==1) + { + return true; + }else + { + return false; + } + } + /*returns false if username is taken, email is not checked here*/ function register_user(string $user,string $password,string $email) : bool { @@ -91,16 +228,23 @@ require_once "misc.php"; }else { $hashed_pass=password_hash($password,$password_hash_algo); - $prep=$this->pdo->prepare("insert into users(username,password,email) values(:username,:password,:email)"); + $home_dir=$this->create_dangling_directory(); + $prep=$this->pdo->prepare("insert into users(username,password,email,home_directory) values(:username,:password,:email,:dir)"); $prep->bindParam(':username',$user); $prep->bindParam(':password',$hashed_pass); $prep->bindParam(':email',$email); - $prep->execute(); + $prep->bindParam(':dir',$home_dir); + if($prep->execute()==false) + { + error_log("can't create user because there was an error in the sql statement"); + /*todo make an error page*/ + exit(1); + } } return true; } } } - +$database=new Database(); ?> |