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user.rb
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user.rb
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require "sqlite3"
require 'display.rb'
require 'user_space.rb'
require 'digest'
class Users
def load(db)
@db = db
sql = <<SQL
PRAGMA foreign_keys = ON;
create table if not exists users (
uid INTEGER PRIMARY KEY,
nickname TEXT UNIQUE,
salt TEXT,
hash TEXT,
right,
validated INTEGER UNSIGNED,
creation INTEGER,
UNIQUE(nickname));
create table if not exists groups (
gid TEXT PRIMARY KEY,
label TEXT );
create table if not exists groups_users (
gid TEXT,
uid INTEGER UNSIGNED,
PRIMARY KEY(gid, uid),
FOREIGN KEY(gid) REFERENCES groups(gid) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY(uid) REFERENCES users(uid) ON UPDATE CASCADE ON DELETE CASCADE);
create table if not exists rights (
right TEXT UNIQUE,
owner INTEGER UNSIGNED,
flag_owner INTEGER UNSIGNED,
flag_others INTEGER UNSIGNED,
FOREIGN KEY(owner) REFERENCES users(uid) ON UPDATE CASCADE ON DELETE CASCADE);
create table if not exists rights_groups (
right INTEGER UNSIGNED,
gid TEXT,
flag_group INTEGER UNSIGNED,
PRIMARY KEY(right, gid),
FOREIGN KEY(right) REFERENCES rights(right) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY(gid) REFERENCES groups(gid) ON UPDATE CASCADE ON DELETE CASCADE);
create table if not exists tokens (
tid INTEGER PRIMARY KEY,
token TEXT UNIQUE,
right INTEGER UNSIGNED UNIQUE,
activated INTEGER UNSIGNED,
type INTEGER UNSIGNED,
FOREIGN KEY(right) REFERENCES rights(right) ON UPDATE CASCADE ON DELETE CASCADE);
create table if not exists login_tokens (
tid INTEGER PRIMARY KEY,
uid INTEGER,
sid INTEGER,
FOREIGN KEY(uid) REFERENCES users(uid) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY(tid) REFERENCES tokens(tid) ON UPDATE CASCADE ON DELETE CASCADE);
SQL
debug("[DB] init_db");
@db.execute_batch( sql );
init_root();
create_new_user("guest", "guest", 1);
end
def init_root()
# Generates a random password for root
r = Random.new();
random_string = [ r.bytes(32) ].pack("m").strip
id = create("root", random_string, 1);
return false if(id == nil)
log("root password : #{random_string}");
sql = <<SQL
BEGIN;
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}#{$right_paths["users"]}',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}#{$right_paths["channels"]}',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}#{$right_paths["groups"]}',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}#{$right_paths["users"]}root/',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES (
'#{$right_paths["root"]}#{$right_paths["groups"]}root',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR IGNORE INTO groups (gid, label) VALUES ("#{$right_paths["root"]}#{$right_paths["groups"]}root", "root");
INSERT OR IGNORE INTO groups_users (gid, uid)
VALUES(
'#{$right_paths["root"]}#{$right_paths["groups"]}root',
#{id});
INSERT OR REPLACE INTO rights_groups (right, gid, flag_group) VALUES ("#{$right_paths["root"]}#{$right_paths["users"]}root/", "#{$right_paths["root"]}#{$right_paths["groups"]}root", #{Rights_Flag::OWNER});
COMMIT;
SQL
begin
debug("[DB] init_root 2/2");
@db.execute_batch( sql );
rescue => e
error("Create root user : #{e}");
end
end
def create(user, pass, validated)
r = Random.new();
salt = [ r.bytes(32) ].pack("m").strip
salt_pass = Digest::SHA256.base64digest(salt + pass);
creation = Time.now();
sql = <<SQL
INSERT OR IGNORE INTO users (uid, right, nickname, salt, hash, validated, creation)
VALUES
(NULL, '#{$right_paths["root"]}#{$right_paths["users"]}#{user}/', '#{user}', '#{salt}', '#{salt_pass}', #{validated}, #{creation.strftime("%s")});
SQL
@db.execute(sql) do |row|
error("Could not create User #{user}, already exists in base");
return nil;
end
return nil if(@db.last_insert_row_id == 0)
debug("[DB] create user #{user}");
return @db.last_insert_row_id
end
def create_new_user( user, pass, validated )
id = create(user, pass, validated);
return false if(id == nil)
sql = <<SQL
BEGIN;
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES(
'#{$right_paths["root"]}#{$right_paths["users"]}#{user}/',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES(
'#{$right_paths["root"]}#{$right_paths["users"]}#{user}/#{$right_paths["tokens"]}',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
0);
INSERT OR REPLACE INTO rights (right, owner, flag_owner, flag_others )
VALUES(
'#{$right_paths["root"]}#{$right_paths["channels"]}#{user}/',
#{id},
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
#{ Rights_Flag::READ });
INSERT OR IGNORE INTO groups (gid, label)
VALUES ("#{$right_paths["root"]}#{$right_paths["groups"]}#{user}", "#{user}");
INSERT OR IGNORE INTO groups_users (gid, uid)
VALUES(
'#{$right_paths["root"]}#{$right_paths["groups"]}#{user}',
#{id});
INSERT OR REPLACE INTO rights_groups (right, gid, flag_group)
VALUES ("#{$right_paths["root"]}#{$right_paths["users"]}#{user}/", "#{$right_paths["root"]}#{$right_paths["groups"]}#{user}", #{Rights_Flag::READ | Rights_Flag::WRITE});
COMMIT;
SQL
begin
debug("[DB] create_new_user 2/3");
@db.execute_batch( sql );
rescue =>e
error("Create user : #{e}");
end
create_login_token( user );
debug("[DB] create_new_user 3/3");
@db.execute("SELECT uid FROM users WHERE nickname='#{user}' LIMIT 1") do |row|
return row["uid"];
end
nil;
end
def validate_user( user )
#Todo check if user session has rights to validate
sql = <<SQL
UPDATE users
SET validated = 1
WHERE nickname="#{user}"
SQL
begin
debug("[DB] validate_user");
@db.execute_batch( sql );
rescue =>e
error("Validate user : #{e}");
end
end
def create_login_token( userNickname )
debug("[DB] create_login_token check");
@db.execute("SELECT lt.tid as hash_exists FROM login_tokens lt INNER JOIN users as u ON u.uid=lt.uid WHERE u.nickname='#{userNickname}'") do |row|
error("Could not create login token, already exists")
return nil
end
hashExists = false;
gen_hash_retry = 0;
char_set = [('a'..'z'),('A'..'Z'), ('0'..'9')].map{|i| i.to_a}.flatten
random_string=nil;
while ( hashExists == false )
random_string = (0...6).map{ char_set[rand(char_set.length)] }.join
debug("[DB] create_login_token retry check");
res = @db.execute("SELECT count(*) as hash_exists FROM tokens WHERE token='#{random_string}'");
hashExists = true if( res[0] != nil and res[0]["hash_exists"] == 0)
return nil if(gen_hash_retry >= 100)
end
#TODO check if user exists
sql = <<SQL
BEGIN;
INSERT OR IGNORE INTO rights (right, owner, flag_owner, flag_others )
SELECT
'#{$right_paths["root"]}#{$right_paths["users"]}#{userNickname}/#{$right_paths["tokens"]}#{random_string}',
U.uid,
#{ Rights_Flag::READ | Rights_Flag::WRITE | Rights_Flag::EXECUTE | Rights_Flag::CREATION | Rights_Flag::DELETE | Rights_Flag::TOKENIZE | Rights_Flag::OWNER },
#{ Rights_Flag::READ | Rights_Flag::EXECUTE }
FROM users as U
WHERE U.nickname = '#{userNickname}';
INSERT OR IGNORE INTO tokens (tid, token, right, activated, type)
VALUES (NULL, '#{random_string}', '#{$right_paths["root"]}#{$right_paths["users"]}#{userNickname}/#{$right_paths["tokens"]}#{random_string}', 0, #{Tokens_Type::LOGIN});
INSERT OR IGNORE INTO login_tokens ( tid, uid, sid )
SELECT
T.tid,
U.uid,
NULL
FROM users as U, tokens as T
WHERE U.nickname = '#{userNickname}'
AND T.token = '#{random_string}';
COMMIT;
SQL
begin
debug("[DB] create_login_token insert");
@db.execute_batch( sql );
rescue => e
error("#{e}");
end
end
def login(user, pass)
req = @db.prepare("SELECT uid, hash, salt, right FROM users WHERE nickname='#{user}'AND validated = 1 LIMIT 1");
debug("[DB] login");
res = req.execute!();
req.close();
return nil if(res == nil or res[0] == nil)
if(res[0].at(1) == Digest::SHA256.base64digest(res[0].at(2) + pass))
return res[0].at(0), res[0].at(3);
end
return nil;
end
def get(uid)
req = @db.prepare("SELECT nickname FROM users WHERE uid='#{uid}'AND validated = 1 LIMIT 1");
res = req.execute!();
req.close();
return res && res[0] && res[0][0]
end
def create_new_group( label )
debug("[DB] create_new_group");
@db.execute("INSERT INTO groups (gid, label) VALUES (?,?)", nil, label);
@db.last_insert_row_id;
end
def create_new_right( right_path, owner_id, flag_owner, flag_others, group_rights)
#TODO check if subrights exists
#TODO check user has right to create a new sub right
debug("[DB] create_new_right 1/2");
@db.execute("INSERT OR IGNORE INTO rights (right, owner, flag_owner, flag_others) VALUES( '#{right_path}', '#{owner_id}', #{flag_owner}, #{flag_others})");
begin
debug("[DB] create_new_right 2/2");
@db.prepare("INSERT OR IGNORE INTO rights_groups (right, gid, flag_group) VALUES ( ?, ?, ? )") do |stmt|
group_rights.each { |grp|
stmt.bind_param(1, right_path);
stmt.bind_param(2, grp["gid"]);
stmt.bind_param(3, grp["flag"]);
stmt.execute();
}
end
rescue => e
#ignore statment
end
end
def get_user_informations(sid)
debug("[DB] get_user_informations");
@db.execute("SELECT " +
" T.token, " +
" U.right, " +
" S.user_agent, " +
" S.remote_ip " +
"FROM users as U " +
"INNER JOIN sessions as S " +
"ON S.uid = U.uid " +
"INNER JOIN login_tokens as LT " +
"ON lt.uid = S.uid " +
"INNER JOIN tokens as T " +
"ON T.tid = LT.tid " +
"WHERE S.sid = '#{sid.sid}' " +
"LIMIT 1") do |row|
return row
end
nil
end
def change_user_password(user, sid, nickname, old_pass, new_pass, new_pass2)
return nil if( new_pass != new_pass2)
uid, right = login(nickname, old_pass)
return nil if(uid == nil)
debug("[DB] change_user_password select");
if user_has_right(user, right, Rights_Flag::WRITE)
r = Random.new();
salt = [ r.bytes(32) ].pack("m").strip
salt_pass = Digest::SHA256.base64digest(salt + new_pass);
debug("[DB] change_user_password update");
@db.execute("UPDATE users SET hash='#{salt_pass}', salt='#{salt}' WHERE nickname='#{nickname}'")
return true
end
false
end
def check_login_token(token)
debug("[DB] check_login_token");
user = nil
@db.execute("SELECT " +
" U.nickname, " +
" U.uid, " +
" T.right " +
"FROM tokens as T " +
"INNER JOIN login_tokens as LT " +
"ON LT.tid = T.tid " +
"INNER JOIN rights as R " +
"ON R.right = T.right " +
"INNER JOIN users as U " +
"ON LT.uid = U.uid " +
"WHERE T.token='#{token}' LIMIT 1") do |row|
if user_has_right(user, row["right"], Rights_Flag::EXECUTE )
return row["nickname"], row["uid"]
end
end
nil
end
def get_user_login_token(user)
begin
debug("[DB] get_user_login_token");
@db.execute("SELECT T.token FROM login_tokens as LT INNER JOIN tokens as T ON T.tid = LT.tid INNER JOIN users as U on U.uid = LT.uid WHERE U.nickname='#{user}' LIMIT 1") do |row|
return row["token"]
end
rescue => e
error("Could not execute get_user_login_token : #{e}")
return nil
end
nil
end
def get_login_token_session(token)
begin
debug("[DB] get_login_token_session");
row = @db.execute("SELECT LT.* FROM login_tokens as LT INNER JOIN tokens as T ON T.tid = LT.tid WHERE T.token='#{token}' LIMIT 1")[0]
row && row["sid"] && Session.new(session)
rescue => e
error("get_login_token_sessions #{e}")
nil
end
end
def update_login_token_session(token, session)
begin
debug("[DB] update_login_token_session");
@db.execute("UPDATE login_tokens SET sid='#{session.sid}' WHERE tid='#{token}'")
session
rescue => e
error("update_token_session : #{e}")
nil
end
end
def user_has_right(user, right, askedMode )
begin
debug("[DB] user_has_right 1/2");
userId = @db.execute("SELECT u.uid FROM users as U WHERE U.nickname='#{user}' LIMIT 1")[0]["uid"]
rescue => e
userId = -1
end
# @TODO flag_other isn't well treated : user must not be right owner or group for other flag
req = "SELECT 1 FROM rights as R " +
"LEFT JOIN rights_groups AS RG " +
"ON RG.right = R.right " +
"LEFT JOIN groups AS G " +
"ON G.gid = RG.gid " +
"LEFT JOIN groups_users AS GU " +
"ON GU.gid = G.gid " +
"WHERE R.right ='#{right}' " +
"AND ( " +
" ( R.owner='#{userId}' ) " +
" OR ( RG.flag_group & #{askedMode} = #{askedMode} AND GU.uid='#{userId}') " +
" OR ( R.flag_others & #{askedMode} = #{askedMode} )) " +
"LIMIT 1";
begin
debug("[DB] user_has_right 2/2");
res = @db.execute(req)[0]
rescue => e
error("user_has_right error => #{e}")
return false
end
return true if(res)
return true if user_is_owner(user, right)
false;
end
def user_is_owner(user, right)
begin
debug("[DB] user_is_owner 1/2");
userId = @db.execute("SELECT u.uid FROM users as U WHERE U.nickname='#{user}' LIMIT 1")[0]["uid"]
rescue => e
userId = -1
end
#Split path in order to search for each parents if the user is the owner
splitedPath = right.split("/")
currentIndex = 0;
while ( currentIndex < splitedPath.length)
currentPath = splitedPath[0..currentIndex].join("/");
if currentIndex == (splitedPath.length-1) and right[right.length-1] == "/"
currentPath = currentPath + "/";
elsif currentIndex != (splitedPath.length-1)
currentPath = currentPath + "/";
end
req = "SELECT 1 FROM rights as R " +
"LEFT JOIN rights_groups AS RG " +
"ON RG.right = R.right " +
"LEFT JOIN groups AS G " +
"ON G.gid = RG.gid " +
"LEFT JOIN groups_users AS GU " +
"ON GU.gid = G.gid " +
"WHERE R.right ='#{currentPath}' " +
"AND ( " +
" ( R.owner='#{userId}' ) " +
" OR ( RG.flag_group >= #{Rights_Flag::OWNER} AND GU.uid='#{userId}' ) " +
" OR ( R.flag_others >= #{Rights_Flag::OWNER} ))";
begin
debug("[DB] user_is_owner 2/2");
res = @db.execute(req)
rescue => e
return false
end
return true if(res[0])
currentIndex = currentIndex + 1
end
false;
end
end