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html5/webdatabase Overview.html,NONE,1.1

From: Ian Hickson via cvs-syncmail <cvsmail@w3.org>
Date: Wed, 15 Jul 2009 10:54:02 +0000
To: public-html-commits@w3.org
Message-Id: <E1MR27e-0002eu-LP@lionel-hutz.w3.org>
Update of /sources/public/html5/webdatabase
In directory hutz:/tmp/cvs-serv10206

Added Files:
Log Message:
Split Web Storage into two: Web Storage and Web Database. (whatwg r3418)

--- NEW FILE: Overview.html ---
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!-- when publishing, change bits marked ZZZ --><html lang="en-US-x-Hixie"><title>Web Database</title><style type="text/css">
   pre { margin-left: 2em; white-space: pre-wrap; }
   h2 { margin: 3em 0 1em 0; }
   h3 { margin: 2.5em 0 1em 0; }
   h4 { margin: 2.5em 0 0.75em 0; }
   h5, h6 { margin: 2.5em 0 1em; }
   h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
   h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
   p { margin: 1em 0; }
   hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
   dl, dd { margin-top: 0; margin-bottom: 0; }
   dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
   dt + dt { margin-top: 0; }
   dd dt { margin-top: 0.25em; margin-bottom: 0; }
   dd p { margin-top: 0; }
   dd dl + p { margin-top: 1em; }
   dd table + p { margin-top: 1em; }
   p + * > li, dd li { margin: 1em 0; }
   dt, dfn { font-weight: bold; font-style: normal; }
[...1058 lines suppressed...]
  read from their domain causes <em>information leakage</em>, For
  example, a user's shopping wishlist on one domain could be used by
  another domain for targeted advertising; or a user's
  work-in-progress confidential documents stored by a word-processing
  site could be examined by the site of a competing company.<p>Letting third-party sites write data to the persistent storage of
  other domains can result in <em>information spoofing</em>, which is
  equally dangerous. For example, a hostile site could add items to a
  user's wishlist; or a hostile site could set a user's session
  identifier to a known ID that the hostile site can then use to track
  the user's actions on the victim site.<p>Thus, strictly following the <span>origin</span> model described
  in this specification is important for user security.<h3 id="sql-and-user-agents"><span class="secno">7.4 </span>SQL and user agents</h3><p>User agent implementors are strongly encouraged to audit all
  their supported SQL statements for security implications. For
  example, <code title="">LOAD DATA INFILE</code> is likely to pose
  security risks and there is little reason to support it.<p>In general, it is recommended that user agents not support
  features that control how databases are stored on disk. For example,
  there is little reason to allow Web authors to control the character
  encoding used in the disk representation of the data, as all data in
  JavaScript is implicitly UTF-16.<h3 id="sql-injection"><span class="secno">7.5 </span>SQL injection</h3><p>Authors are strongly recommended to make use of the <code title="">?</code> placeholder feature of the <code title="dom-sqltransaction-executeSql"><a href="#dom-sqltransaction-executesql">executeSql()</a></code> method,
  and to never construct SQL statements on the fly.<h2 class="no-num" id="references">References</h2><p class="big-issue">This section will be written in a future
Received on Wednesday, 15 July 2009 10:54:11 UTC

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