Major rewrite of table/column name output escaping system wide.
[clsql.git] / db-mysql / mysql-sql.lisp
index db98e6361ee79986d450e02bd47a4400f9c19328..857bcd5ec985c78dc863bc8cd50d5432d394ee79 100644 (file)
 (defpackage #:clsql-mysql
     (:use #:common-lisp #:clsql-sys #:mysql #:clsql-uffi)
     (:export #:mysql-database)
+    (:import-from :clsql-sys
+     :escaped :unescaped :combine-database-identifiers
+     :escaped-database-identifier :unescaped-database-identifier :database-identifier
+     :%sequence-name-to-table :%table-name-to-sequence-name)
     (:documentation "This is the CLSQL interface to MySQL."))
 
 (in-package #:clsql-mysql)
 
 (defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
   (check-connection-spec connection-spec database-type
-                         (host db user password &optional port))
-  (destructuring-bind (host db user password &optional port) connection-spec
-    (declare (ignore password))
+                         (host db user password &optional port options))
+  (destructuring-bind (host db user password &optional port options) connection-spec
+    (declare (ignore password options))
     (concatenate 'string
                  (etypecase host
                    (null "localhost")
                      "")
                  "/" db "/" user)))
 
+(defun lookup-option-code (option)
+  (if (assoc option +mysql-option-parameter-map+)
+      (symbol-value (intern
+                     (concatenate 'string (symbol-name-default-case "mysql-option#")
+                                  (symbol-name option))
+                     (symbol-name '#:mysql)))
+      (progn
+        (warn "Unknown mysql option name ~A - ignoring.~%" option)
+        nil)))
+
+(defun set-mysql-options (mysql-ptr options)
+  (flet ((lookup-option-type (option)
+           (cdr (assoc option +mysql-option-parameter-map+))))
+    (dolist (option options)
+      (if (atom option)
+          (let ((option-code (lookup-option-code option)))
+            (when option-code
+              (mysql-options mysql-ptr option-code uffi:+null-cstring-pointer+)))
+          (destructuring-bind (name . value) option
+            (let ((option-code (lookup-option-code name)))
+              (when option-code
+                (case (lookup-option-type name)
+                  (:none
+                   (mysql-options mysql-ptr option-code uffi:+null-cstring-pointer+))
+                  (:char-ptr
+                   (if (stringp value)
+                       (uffi:with-foreign-string (fs value)
+                           (mysql-options mysql-ptr option-code fs))
+                       (warn "Expecting string argument for mysql option ~A, got ~A ~
+- ignoring.~%"
+                             name value)))
+                  (:uint-ptr
+                   (if (integerp value)
+                       (uffi:with-foreign-object (fo :unsigned-int)
+                         (setf (uffi:deref-pointer fo :unsigned-int) value)
+                         (mysql-options mysql-ptr option-code fo))
+                       (warn "Expecting integer argument for mysql option ~A, got ~A ~
+- ignoring.~%"
+                             name value)))
+                  (:boolean-ptr
+                   (uffi:with-foreign-object (fo :byte)
+                     (setf (uffi:deref-pointer fo :byte)
+                           (if (or (zerop value) (null value))
+                               0
+                               1))
+                     (mysql-options mysql-ptr option-code fo)))))))))))
+
 (defmethod database-connect (connection-spec (database-type (eql :mysql)))
   (check-connection-spec connection-spec database-type
-                         (host db user password &optional port))
-  (destructuring-bind (host db user password &optional port) connection-spec
+                         (host db user password &optional port options))
+  (destructuring-bind (host db user password &optional port options) connection-spec
     (let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
           (socket nil))
       (if (uffi:null-pointer-p mysql-ptr)
                             (password-native password)
                             (db-native db)
                             (socket-native socket))
+          (when options
+            (set-mysql-options mysql-ptr options))
           (let ((error-occurred nil))
             (unwind-protect
                 (if (uffi:null-pointer-p
                                 (uffi:deref-array row '(:array
                                                         (* :unsigned-char))
                                                   i)
-                                result-types i
-                                (uffi:deref-array lengths '(:array :unsigned-long)
-                                                  i)))))
+                                (nth i result-types)
+                                 :length
+                                (uffi:deref-array lengths '(:array :unsigned-long) i)
+                                 :encoding (encoding database)))))
                     (when field-names
                       (result-field-names res-ptr))))
              (mysql-free-result res-ptr))
             (setf (car rest)
                   (convert-raw-field
                    (uffi:deref-array row '(:array (* :unsigned-char)) i)
-                   types
-                   i
-                   (uffi:deref-array lengths '(:array :unsigned-long) i))))
+                   (nth i types)
+                   :length
+                   (uffi:deref-array lengths '(:array :unsigned-long) i)
+                   :encoding (encoding database))))
       list)))
 
 
   (declare (ignore owner))
   (do ((results nil)
        (rows (database-query
-              (format nil "SHOW INDEX FROM ~A" table)
+              (format nil "SHOW INDEX FROM ~A" (escaped-database-identifier
+                                                table database))
               database nil nil)
              (cdr rows)))
       ((null rows) (nreverse results))
   (declare (ignore owner))
   (mapcar #'car
           (database-query
-           (format nil "SHOW COLUMNS FROM ~A" table)
+           (format nil "SHOW COLUMNS FROM ~A" (escaped-database-identifier
+                                                table database))
            database nil nil)))
 
 (defmethod database-attribute-type (attribute (table string)
   (declare (ignore owner))
   (let ((row (car (database-query
                    (format nil
-                           "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
+                           "SHOW COLUMNS FROM ~A LIKE '~A'"
+                           (escaped-database-identifier
+                            table database)
+                           (unescaped-database-identifier
+                            attribute database))
                    database nil nil))))
     (let* ((raw-type (second row))
            (null (third row))
 
 ;;; Sequence functions
 
-(defun %sequence-name-to-table (sequence-name)
-  (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
-
-(defun %table-name-to-sequence-name (table-name)
-  (and (>= (length table-name) 11)
-       (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
-       (subseq table-name 11)))
-
 (defmethod database-create-sequence (sequence-name
                                      (database mysql-database))
-  (let ((table-name (%sequence-name-to-table sequence-name)))
+  (let ((table-name (%sequence-name-to-table sequence-name database)))
     (database-execute-command
      (concatenate 'string "CREATE TABLE " table-name
                   " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
 (defmethod database-drop-sequence (sequence-name
                                    (database mysql-database))
   (database-execute-command
-   (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
+   (concatenate 'string "DROP TABLE "
+                (%sequence-name-to-table sequence-name database))
    database))
 
 (defmethod database-list-sequences ((database mysql-database)
   (declare (ignore owner))
   (mapcan #'(lambda (s)
               (let ((sn (%table-name-to-sequence-name (car s))))
-                (and sn (list sn))))
+                (and sn (list (car s) sn))))
           (database-query "SHOW TABLES" database nil nil)))
 
 (defmethod database-set-sequence-position (sequence-name
                                            (position integer)
                                            (database mysql-database))
   (database-execute-command
-   (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
+   (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name database)
            position)
    database)
   (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
 (defmethod database-sequence-next (sequence-name (database mysql-database))
   (without-interrupts
    (database-execute-command
-    (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
+    (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name database)
                  " SET id=LAST_INSERT_ID(id+1)")
     database)
    (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
   (without-interrupts
     (caar (database-query
            (concatenate 'string "SELECT id from "
-                        (%sequence-name-to-table sequence-name))
+                        (%sequence-name-to-table sequence-name database))
            database :auto nil))))
 
+(defmethod database-last-auto-increment-id ((database mysql-database) table column)
+  (declare (ignore table column))
+  (car (query "SELECT LAST_INSERT_ID();"
+             :flatp t :field-names nil
+             :database database)))
+
 (defmethod database-create (connection-spec (type (eql :mysql)))
   (destructuring-bind (host name user password) connection-spec
     (let ((database (database-connect (list host "" user password)
     t))
 
 (defmethod database-list (connection-spec (type (eql :mysql)))
-  (destructuring-bind (host name user password &optional port) connection-spec
+  (destructuring-bind (host name user password &optional port options) connection-spec
+    (declare (ignore options))
     (let ((database (database-connect (list host (or name "mysql")
                                             user password port) type)))
       (unwind-protect
                    ((#.mysql-field-types#var-string #.mysql-field-types#string
                      #.mysql-field-types#tiny-blob #.mysql-field-types#blob
                      #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
-                    (uffi:convert-from-foreign-string buffer))
-                    (#.mysql-field-types#tiny
-                     (uffi:ensure-char-integer
-                      (uffi:deref-pointer buffer :byte)))
-                    (#.mysql-field-types#short
-                     (uffi:deref-pointer buffer :short))
-                    (#.mysql-field-types#long
-                     (uffi:deref-pointer buffer :int))
-                    #+64bit
-                    (#.mysql-field-types#longlong
+                    (uffi:convert-from-foreign-string buffer :encoding (encoding (database stmt))))
+                   (#.mysql-field-types#tiny
+                    (uffi:ensure-char-integer
+                     (uffi:deref-pointer buffer :byte)))
+                   (#.mysql-field-types#short
+                    (uffi:deref-pointer buffer :short))
+                   (#.mysql-field-types#long
+                    (uffi:deref-pointer buffer :int))
+                   #+64bit
+                   (#.mysql-field-types#longlong
                      (uffi:deref-pointer buffer :long))
-                    (#.mysql-field-types#float
-                     (uffi:deref-pointer buffer :float))
-                    (#.mysql-field-types#double
-                     (uffi:deref-pointer buffer :double))
+                   (#.mysql-field-types#float
+                    (uffi:deref-pointer buffer :float))
+                   (#.mysql-field-types#double
+                    (uffi:deref-pointer buffer :double))
                    ((#.mysql-field-types#time #.mysql-field-types#date
                                               #.mysql-field-types#datetime #.mysql-field-types#timestamp)
                     (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
                           (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
                           (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
                           (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
-                  (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
+                          (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
                       (db-timestring
                        (make-time :year year :month month :day day :hour hour
                                   :minute minute :second second))))