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authorrvelices <rv-github@modusoptimus.com>2007-01-23 01:22:52 +0000
committerrvelices <rv-github@modusoptimus.com>2007-01-23 01:22:52 +0000
commite90aaffbd551a2e80b67cb67362519b16ee61203 (patch)
tree1f449b20b66d1321860db9762b126ed8d48068dc /include/php_compat/hash_hmac.php
parent767064c9fe94e28acb77a1123c2853281d13f2d1 (diff)
- revert feature 564: log the login of each user; but add the possibility to be
done by a plugin - create a "standard" way to define PHP functions that we use but might not be available in the current php version - when a comment is rejected (spam, anti-flood etc), put the content back to the browser in case there is a real user behind it - now a comment can be entered only if the page was retrieved between 2 seconds ago and 1 hour ago git-svn-id: http://piwigo.org/svn/trunk@1744 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to 'include/php_compat/hash_hmac.php')
-rw-r--r--include/php_compat/hash_hmac.php25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/php_compat/hash_hmac.php b/include/php_compat/hash_hmac.php
new file mode 100644
index 000000000..5f05e370c
--- /dev/null
+++ b/include/php_compat/hash_hmac.php
@@ -0,0 +1,25 @@
+<?php
+//(hash) - enabled by default as of PHP 5.1.2
+function hash_hmac($algo, $data, $key, $raw_output=false)
+{
+ /* md5 and sha1 only */
+ $algo=strtolower($algo);
+ $p=array('md5'=>'H32','sha1'=>'H40');
+ if ( !isset($p[$algo]) or !function_exists($algo) )
+ {
+ $algo = 'md5';
+ }
+ if(strlen($key)>64) $key=pack($p[$algo],$algo($key));
+ if(strlen($key)<64) $key=str_pad($key,64,chr(0));
+
+ $ipad=substr($key,0,64) ^ str_repeat(chr(0x36),64);
+ $opad=substr($key,0,64) ^ str_repeat(chr(0x5C),64);
+
+ $ret = $algo($opad.pack($p[$algo],$algo($ipad.$data)));
+ if ($raw_output)
+ {
+ $ret = pack('H*', $ret);
+ }
+ return $ret;
+}
+?> \ No newline at end of file