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Secure Development for Mobile Apps
book

Secure Development for Mobile Apps

by J. D. Glaser
October 2014
Intermediate to advanced content levelIntermediate to advanced
472 pages
10h 44m
English
Auerbach Publications
Content preview from Secure Development for Mobile Apps
220
seCure develoPment For mobIle APPs
Next, a PDO transaction is initiated.
$this->db->beginTransaction();
is is important in order to replicate the default behavior of PHP which locks ses-
sion files for the duration of a script’s execution. For AJAX application, and jQuery
Mobile applications with AJAX, session locking is critical to avoid race conditions
that depend on $_SESSION variables. Two AJAX scripts, using the same session
ID, might be reading and writing to the $_SESSION array at the same time. Session
locking avoids that race condition and must be manually implemented by custom ses-
sion storage code.
Next, the query to retrieve the session data is executed.
$sql = "SELECT session_data
FROM session
WHERE session_id = {$this->db->quote($sessionID)} ...
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Publisher Resources

ISBN: 9781482209037