Collaboration diagram for Mail_RFC822:

Public Member Functions
	__construct ($address=null, $default_domain=null, $nest_groups=null, $validate=null, $limit=null)
	Sets up the object. More...

	parseAddressList ($address=null, $default_domain=null, $nest_groups=null, $validate=null, $limit=null)
	Starts the whole process. More...

	validateMailbox (&$mailbox)
	Function to validate a mailbox, which is: mailbox = addr-spec ; simple address / phrase route-addr ; name and route-addr. More...

	approximateCount ($data)
	Returns an approximate count of how many addresses are in the given string. More...

	isValidInetAddress ($data, $strict=false)
	This is a email validating function separate to the rest of the class. More...

Data Fields
	$address = ''
	The address being parsed by the RFC822 object. More...

	$default_domain = 'localhost'
	The default domain to use for unqualified addresses. More...

	$nestGroups = true
	Should we return a nested array showing groups, or flatten everything? More...

	$validate = true
	Whether or not to validate atoms for non-ascii characters. More...

	$addresses = array()
	The array of raw addresses built up as we parse. More...

	$structure = array()
	The final array of parsed address information that we build up. More...

	$error = null
	The current error message, if any. More...

	$index = null
	An internal counter/pointer. More...

	$num_groups = 0
	The number of groups that have been found in the address list. More...

	$mailRFC822 = true
	A variable so that we can tell whether or not we're inside a Mail_RFC822 object. More...

	$limit = null
	A limit after which processing stops. More...

Protected Member Functions
	_splitAddresses ($address)
	Splits an address into separate addresses. More...

	_isGroup ($address)
	Checks for a group at the start of the string. More...

	_splitCheck ($parts, $char)
	A common function that will check an exploded string. More...

	_hasUnclosedQuotes ($string)
	Checks if a string has unclosed quotes or not. More...

	_hasUnclosedBrackets ($string, $chars)
	Checks if a string has an unclosed brackets or not. More...

	_hasUnclosedBracketsSub ($string, &$num, $char)
	Sub function that is used only by hasUnclosedBrackets(). More...

	_validateAddress ($address)
	Function to begin checking the address. More...

	_validatePhrase ($phrase)
	Function to validate a phrase. More...

	_validateAtom ($atom)
	Function to validate an atom which from rfc822 is: atom = 1*<any CHAR except specials, SPACE and CTLs> More...

	_validateQuotedString ($qstring)
	Function to validate quoted string, which is: quoted-string = <"> *(qtext/quoted-pair) <"> More...

	_validateRouteAddr ($route_addr)
	This function validates a route-addr which is: route-addr = "<" [route] addr-spec ">". More...

	_validateRoute ($route)
	Function to validate a route, which is: route = 1#("@" domain) ":". More...

	_validateDomain ($domain)
	Function to validate a domain, though this is not quite what you expect of a strict internet domain. More...

	_validateSubdomain ($subdomain)
	Function to validate a subdomain: subdomain = domain-ref / domain-literal. More...

	_validateDliteral ($dliteral)
	Function to validate a domain literal: domain-literal = "[" *(dtext / quoted-pair) "]". More...

	_validateAddrSpec ($addr_spec)
	Function to validate an addr-spec. More...

	_validateLocalPart ($local_part)
	Function to validate the local part of an address: local-part = word *("." word) More...

Detailed Description

Definition at line 72 of file RFC822.php.

Constructor & Destructor Documentation

◆ __construct()

Mail_RFC822::__construct	(	$address = `null`,
		$default_domain = `null`,
		$nest_groups = `null`,
		$validate = `null`,
		$limit = `null`
	)

Sets up the object.

The address must either be set here or when calling parseAddressList(). One or the other.

Parameters

string	$address	The address(es) to validate.
string	$default_domain	Default domain/host etc. If not supplied, will be set to localhost.
boolean	$nest_groups	Whether to return the structure with groups nested for easier viewing.
boolean	$validate	Whether to validate atoms. Turn this off if you need to run addresses through before encoding the personal names, for instance.

Returns: object Mail_RFC822 A new Mail_RFC822 object.

Definition at line 154 of file RFC822.php.

    {
        if (isset($address)) {
            $this->address = $address;
        }
        if (isset($default_domain)) {
            $this->default_domain = $default_domain;
        }
        if (isset($nest_groups)) {
            $this->nestGroups = $nest_groups;
        }
        if (isset($validate)) {
            $this->validate = $validate;
        }
        if (isset($limit)) {
            $this->limit = $limit;
        }
    }

References $address, $default_domain, $limit, and $validate.

Member Function Documentation

◆ _hasUnclosedBrackets()

Mail_RFC822::_hasUnclosedBrackets	(	$string,
		$chars
	)

protected

Checks if a string has an unclosed brackets or not.

IMPORTANT: This function handles both angle brackets and square brackets;

Parameters

string	$string	The string to check.
string	$chars	The characters to check for.

Returns: boolean True if there are unclosed brackets inside the string, false otherwise.

Definition at line 417 of file RFC822.php.

    {
        $num_angle_start = substr_count($string, $chars[0]);
        $num_angle_end = substr_count($string, $chars[1]);
 
        $this->_hasUnclosedBracketsSub($string, $num_angle_start, $chars[0]);
        $this->_hasUnclosedBracketsSub($string, $num_angle_end, $chars[1]);
 
        if ($num_angle_start < $num_angle_end) {
            $this->error = 'Invalid address spec. Unmatched quote or bracket (' . $chars . ')';
            return false;
        } else {
            return ($num_angle_start > $num_angle_end);
        }
    }

References _hasUnclosedBracketsSub(), and error().

Referenced by _splitCheck().

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◆ _hasUnclosedBracketsSub()

Mail_RFC822::_hasUnclosedBracketsSub	(		$string,
		&	$num,
			$char
	)

protected

Sub function that is used only by hasUnclosedBrackets().

Parameters

string	$string	The string to check.
integer	&$num	The number of occurences.
string	$char	The character to count.

Returns: integer The number of occurences of $char in $string, adjusted for backslashes.

Definition at line 441 of file RFC822.php.

    {
        $parts = explode($char, $string);
        for ($i = 0; $i < count($parts); $i++) {
            if (substr($parts[$i], -1) == '\\' || $this->_hasUnclosedQuotes($parts[$i])) {
                $num--;
            }
            if (isset($parts[$i + 1])) {
                $parts[$i + 1] = $parts[$i] . $char . $parts[$i + 1];
            }
        }
 
        return $num;
    }

References $i, and _hasUnclosedQuotes().

Referenced by _hasUnclosedBrackets().

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◆ _hasUnclosedQuotes()

Mail_RFC822::_hasUnclosedQuotes ( $string )

protected

Checks if a string has unclosed quotes or not.

Parameters

string $string The string to check.

Returns: boolean True if there are unclosed quotes inside the string, false otherwise.

Definition at line 380 of file RFC822.php.

    {
        $string = trim($string);
        $iMax = strlen($string);
        $in_quote = false;
        $i = $slashes = 0;
 
        for (; $i < $iMax; ++$i) {
            switch ($string[$i]) {
            case '\\':
                ++$slashes;
                break;
 
            case '"':
                if ($slashes % 2 == 0) {
                    $in_quote = !$in_quote;
                }
                // Fall through to default action below.
 
                // no break
            default:
                $slashes = 0;
                break;
            }
        }
 
        return $in_quote;
    }

References $i.

Referenced by _hasUnclosedBracketsSub(), and _splitCheck().

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◆ _isGroup()

Mail_RFC822::_isGroup ( $address )

protected

Checks for a group at the start of the string.

Parameters

string $address The address to check.

Returns: boolean Whether or not there is a group at the start of the string.

Definition at line 324 of file RFC822.php.

    {
        // First comma not in quotes, angles or escaped:
        $parts = explode(',', $address);
        $string = $this->_splitCheck($parts, ',');
 
        // Now we have the first address, we can reliably check for a
        // group by searching for a colon that's not escaped or in
        // quotes or angle brackets.
        if (count($parts = explode(':', $string)) > 1) {
            $string2 = $this->_splitCheck($parts, ':');
            return ($string2 !== $string);
        } else {
            return false;
        }
    }

References $address, and _splitCheck().

Referenced by _splitAddresses().

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◆ _splitAddresses()

Mail_RFC822::_splitAddresses ( $address )

protected

Splits an address into separate addresses.

Parameters

string $address The addresses to split.

Returns: boolean Success or failure.

Definition at line 251 of file RFC822.php.

    {
        if (!empty($this->limit) && count($this->addresses) == $this->limit) {
            return '';
        }
 
        if ($this->_isGroup($address) && !isset($this->error)) {
            $split_char = ';';
            $is_group = true;
        } elseif (!isset($this->error)) {
            $split_char = ',';
            $is_group = false;
        } elseif (isset($this->error)) {
            return false;
        }
 
        // Split the string based on the above ten or so lines.
        $parts = explode($split_char, $address);
        $string = $this->_splitCheck($parts, $split_char);
 
        // If a group...
        if ($is_group) {
            // If $string does not contain a colon outside of
            // brackets/quotes etc then something's fubar.
 
            // First check there's a colon at all:
            if (strpos($string, ':') === false) {
                $this->error = 'Invalid address: ' . $string;
                return false;
            }
 
            // Now check it's outside of brackets/quotes:
            if (!$this->_splitCheck(explode(':', $string), ':')) {
                return false;
            }
 
            // We must have a group at this point, so increase the counter:
            $this->num_groups++;
        }
 
        // $string now contains the first full address/group.
        // Add to the addresses array.
        $this->addresses[] = array(
                                   'address' => trim($string),
                                   'group' => $is_group
                                   );
 
        // Remove the now stored address from the initial line, the +1
        // is to account for the explode character.
        $address = trim(substr($address, strlen($string) + 1));
 
        // If the next char is a comma and this was a group, then
        // there are more addresses, otherwise, if there are any more
        // chars, then there is another address.
        if ($is_group && substr($address, 0, 1) == ',') {
            $address = trim(substr($address, 1));
            return $address;
        } elseif (strlen($address) > 0) {
            return $address;
        } else {
            return '';
        }
 
        // If you got here then something's off
        return false;
    }

References $address, _isGroup(), _splitCheck(), and error().

Referenced by parseAddressList().

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◆ _splitCheck()

Mail_RFC822::_splitCheck	(	$parts,
		$char
	)

protected

A common function that will check an exploded string.

Parameters

array	$parts	The exloded string.
string	$char	The char that was exploded on.

Returns: mixed False if the string contains unclosed quotes/brackets, or the string on success.

Definition at line 348 of file RFC822.php.

    {
        $string = $parts[0];
 
        for ($i = 0; $i < count($parts); $i++) {
            if ($this->_hasUnclosedQuotes($string)
                || $this->_hasUnclosedBrackets($string, '<>')
                || $this->_hasUnclosedBrackets($string, '[]')
                || $this->_hasUnclosedBrackets($string, '()')
                || substr($string, -1) == '\\') {
                if (isset($parts[$i + 1])) {
                    $string = $string . $char . $parts[$i + 1];
                } else {
                    $this->error = 'Invalid address spec. Unclosed bracket or quotes';
                    return false;
                }
            } else {
                $this->index = $i;
                break;
            }
        }
 
        return $string;
    }

References $i, _hasUnclosedBrackets(), _hasUnclosedQuotes(), and error().

Referenced by _isGroup(), _splitAddresses(), _validateAddress(), _validateAddrSpec(), _validateDomain(), _validateLocalPart(), _validatePhrase(), _validateRouteAddr(), and validateMailbox().

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◆ _validateAddress()

Mail_RFC822::_validateAddress ( $address )

protected

Function to begin checking the address.

Parameters

string $address The address to validate.

Returns: mixed False on failure, or a structured array of address information on success.

Definition at line 462 of file RFC822.php.

    {
        $is_group = false;
        $addresses = array();
 
        if ($address['group']) {
            $is_group = true;
 
            // Get the group part of the name
            $parts = explode(':', $address['address']);
            $groupname = $this->_splitCheck($parts, ':');
            $structure = array();
 
            // And validate the group part of the name.
            if (!$this->_validatePhrase($groupname)) {
                $this->error = 'Group name did not validate.';
                return false;
            } else {
                // Don't include groups if we are not nesting
                // them. This avoids returning invalid addresses.
                if ($this->nestGroups) {
                    $structure = new stdClass;
                    $structure->groupname = $groupname;
                }
            }
 
            $address['address'] = ltrim(substr($address['address'], strlen($groupname . ':')));
        }
 
        // If a group then split on comma and put into an array.
        // Otherwise, Just put the whole address in an array.
        if ($is_group) {
            while (strlen($address['address']) > 0) {
                $parts = explode(',', $address['address']);
                $addresses[] = $this->_splitCheck($parts, ',');
                $address['address'] = trim(substr($address['address'], strlen(end($addresses) . ',')));
            }
        } else {
            $addresses[] = $address['address'];
        }
 
        // Trim the whitespace from all of the address strings.
        array_map('trim', $addresses);
 
        // Validate each mailbox.
        // Format could be one of: name <geezer@domain.com>
        //                         geezer@domain.com
        //                         geezer
        // ... or any other format valid by RFC 822.
        for ($i = 0; $i < count($addresses); $i++) {
            if (!$this->validateMailbox($addresses[$i])) {
                if (empty($this->error)) {
                    $this->error = 'Validation failed for: ' . $addresses[$i];
                }
                return false;
            }
        }
 
        // Nested format
        if ($this->nestGroups) {
            if ($is_group) {
                $structure->addresses = $addresses;
            } else {
                $structure = $addresses[0];
            }
 
            // Flat format
        } else {
            if ($is_group) {
                $structure = array_merge($structure, $addresses);
            } else {
                $structure = $addresses;
            }
        }
 
        return $structure;
    }

References $address, $addresses, $i, $structure, _splitCheck(), _validatePhrase(), error(), and validateMailbox().

Referenced by parseAddressList().

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◆ _validateAddrSpec()

Mail_RFC822::_validateAddrSpec ( $addr_spec )

protected

Function to validate an addr-spec.

addr-spec = local-part "@" domain

Parameters

string $addr_spec The string to check.

Returns: mixed False on failure, or the validated addr-spec on success.

Definition at line 867 of file RFC822.php.

    {
        $addr_spec = trim($addr_spec);
 
        // mjansen patch 16 Sep 2016 start
        $validateState = $this->validate;
        // mjansen patch 16 Sep 2016 end
        // Split on @ sign if there is one.
        if (strpos($addr_spec, '@') !== false) {
            $parts = explode('@', $addr_spec);
            $local_part = $this->_splitCheck($parts, '@');
            $domain = substr($addr_spec, strlen($local_part . '@'));
            // mjansen patch 16 Sep 2016 start
            if (substr_count($addr_spec, '@') != 1 && $local_part == '') {
                $this->validate = false;
                $local_part = $addr_spec;
                $domain = $this->default_domain;
            }
            // mjansen patch 16 Sep 2016 end
        // No @ sign so assume the default domain.
        } else {
            $local_part = $addr_spec;
            $domain = $this->default_domain;
        }
 
        if (($local_part = $this->_validateLocalPart($local_part)) === false) {
            return false;
        }
        // mjansen patch 16 Sep 2016 start
        if ($validateState != $this->validate) {
            $this->validate = $validateState;
        }
        // mjansen patch 16 Sep 2016 end
        if (($domain = $this->_validateDomain($domain)) === false) {
            return false;
        }
 
        // Got here so return successful.
        return array('local_part' => $local_part, 'domain' => $domain);
    }

References $default_domain, $domain, $validate, _splitCheck(), _validateDomain(), and _validateLocalPart().

Referenced by _validateRouteAddr(), and validateMailbox().

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◆ _validateAtom()

Mail_RFC822::_validateAtom ( $atom )

protected

Function to validate an atom which from rfc822 is: atom = 1*<any CHAR except specials, SPACE and CTLs>

If validation ($this->validate) has been turned off, then validateAtom() doesn't actually check anything. This is so that you can split a list of addresses up before encoding personal names (umlauts, etc.), for example.

Parameters

string $atom The string to check.

Returns: boolean Success or failure.

Definition at line 589 of file RFC822.php.

    {
        if (!$this->validate) {
            // Validation has been turned off; assume the atom is okay.
            return true;
        }
 
        // Check for any char from ASCII 0 - ASCII 127
        // mjansen patch 16 Sep 2015 start
        // Check for specials:
        if (preg_match('/[][()<>@,;\\:". ]/', $atom)) {
            return false;
        }
 
        // Check for control characters (ASCII 0-31):
        if (preg_match('/[\\x00-\\x1F]+/', $atom)) {
            return false;
        }
        #16291
        #17618
        if (!(bool) preg_match('//u', $atom)) {
            return false;
        }
        // mjansen patch 16 Sep 2015 end
 
        return true;
    }

Referenced by _validatePhrase(), and _validateSubdomain().

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◆ _validateDliteral()

Mail_RFC822::_validateDliteral ( $dliteral )

protected

Function to validate a domain literal: domain-literal = "[" *(dtext / quoted-pair) "]".

Parameters

string $dliteral The string to check.

Returns: boolean Success or failure.

Definition at line 854 of file RFC822.php.

    {
        return !preg_match('/(.)[][\x0D\\\\]/', $dliteral, $matches) && ((!isset($matches[1])) || $matches[1] != '\\');
    }

Referenced by _validateSubdomain().

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◆ _validateDomain()

Mail_RFC822::_validateDomain ( $domain )

protected

Function to validate a domain, though this is not quite what you expect of a strict internet domain.

domain = sub-domain *("." sub-domain)

Parameters

string $domain The string to check.

Returns: mixed False on failure, or the validated domain on success.

Definition at line 802 of file RFC822.php.

    {
        // Note the different use of $subdomains and $sub_domains
        $subdomains = explode('.', $domain);
 
        while (count($subdomains) > 0) {
            $sub_domains[] = $this->_splitCheck($subdomains, '.');
            for ($i = 0; $i < $this->index + 1; $i++) {
                array_shift($subdomains);
            }
        }
 
        foreach ($sub_domains as $sub_domain) {
            if (!$this->_validateSubdomain(trim($sub_domain))) {
                return false;
            }
        }
 
        // Managed to get here, so return input.
        return $domain;
    }

References $domain, $i, _splitCheck(), and _validateSubdomain().

Referenced by _validateAddrSpec(), and _validateRoute().

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◆ _validateLocalPart()

Mail_RFC822::_validateLocalPart ( $local_part )

protected

Function to validate the local part of an address: local-part = word *("." word)

@access private

Parameters

string $local_part

Returns: mixed False on failure, or the validated local part on success.

Definition at line 916 of file RFC822.php.

    {
        $parts = explode('.', $local_part);
        $words = array();
 
        // Split the local_part into words.
        while (count($parts) > 0) {
            $words[] = $this->_splitCheck($parts, '.');
            for ($i = 0; $i < $this->index + 1; $i++) {
                array_shift($parts);
            }
        }
 
        // Validate each word.
        foreach ($words as $word) {
            // iszmais patch 19 May 2020 start
            // word cannot be empty (#17317)
            //if ($word === '') {
            //    return false;
            //}
            // iszmais patch 19 May 2020 end
            // If this word contains an unquoted space, it is invalid. (6.2.4)
            if (strpos($word, ' ') && $word[0] !== '"') {
                // mjansen patch 24 Feb 2016 start
                // Mantis issue #18018
                // # http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/
                //return false;
                // mjansen patch 24 Feb 2016 end
            }
 
            if ($this->_validatePhrase(trim($word)) === false) {
                return false;
            }
        }
 
        // Managed to get here, so return the input.
        return $local_part;
    }

References $i, _splitCheck(), and _validatePhrase().

Referenced by _validateAddrSpec().

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◆ _validatePhrase()

Mail_RFC822::_validatePhrase ( $phrase )

protected

Function to validate a phrase.

Parameters

string $phrase The phrase to check.

Returns: boolean Success or failure.

Definition at line 546 of file RFC822.php.

    {
        // Splits on one or more Tab or space.
        $parts = preg_split('/[ \\x09]+/', $phrase, -1, PREG_SPLIT_NO_EMPTY);
 
        $phrase_parts = array();
        while (count($parts) > 0) {
            $phrase_parts[] = $this->_splitCheck($parts, ' ');
            for ($i = 0; $i < $this->index + 1; $i++) {
                array_shift($parts);
            }
        }
 
        foreach ($phrase_parts as $part) {
            // If quoted string:
            if (substr($part, 0, 1) == '"') {
                if (!$this->_validateQuotedString($part)) {
                    return false;
                }
                continue;
            }
 
            // Otherwise it's an atom:
            if (!$this->_validateAtom($part)) {
                return false;
            }
        }
 
        return true;
    }

References $i, _splitCheck(), _validateAtom(), and _validateQuotedString().

Referenced by _validateAddress(), _validateLocalPart(), and validateMailbox().

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◆ _validateQuotedString()

Mail_RFC822::_validateQuotedString ( $qstring )

protected

Function to validate quoted string, which is: quoted-string = <"> *(qtext/quoted-pair) <">

Parameters

string $qstring The string to check

Returns: boolean Success or failure.

Definition at line 624 of file RFC822.php.

    {
        // Leading and trailing "
        $qstring = substr($qstring, 1, -1);
 
        // Perform check, removing quoted characters first.
        return !preg_match('/[\x0D\\\\"]/', preg_replace('/\\\\./', '', $qstring));
    }

Referenced by _validatePhrase().

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◆ _validateRoute()

Mail_RFC822::_validateRoute ( $route )

protected

Function to validate a route, which is: route = 1#("@" domain) ":".

Parameters

string $route The string to check.

Returns: mixed False on failure, or the validated $route on success.

Definition at line 778 of file RFC822.php.

    {
        // Split on comma.
        $domains = explode(',', trim($route));
 
        foreach ($domains as $domain) {
            $domain = str_replace('@', '', trim($domain));
            if (!$this->_validateDomain($domain)) {
                return false;
            }
        }
 
        return $route;
    }

References $domain, and _validateDomain().

Referenced by _validateRouteAddr().

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◆ _validateRouteAddr()

Mail_RFC822::_validateRouteAddr ( $route_addr )

protected

This function validates a route-addr which is: route-addr = "<" [route] addr-spec ">".

Angle brackets have already been removed at the point of getting to this function.

Parameters

string $route_addr The string to check.

Returns: mixed False on failure, or an array containing validated address/route information on success.

Definition at line 729 of file RFC822.php.

    {
        // Check for colon.
        if (strpos($route_addr, ':') !== false) {
            $parts = explode(':', $route_addr);
            $route = $this->_splitCheck($parts, ':');
        } else {
            $route = $route_addr;
        }
 
        // If $route is same as $route_addr then the colon was in
        // quotes or brackets or, of course, non existent.
        if ($route === $route_addr) {
            unset($route);
            $addr_spec = $route_addr;
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        } else {
            // Validate route part.
            if (($route = $this->_validateRoute($route)) === false) {
                return false;
            }
 
            $addr_spec = substr($route_addr, strlen($route . ':'));
 
            // Validate addr-spec part.
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        }
 
        if (isset($route)) {
            $return['adl'] = $route;
        } else {
            $return['adl'] = '';
        }
 
        $return = array_merge($return, $addr_spec);
        return $return;
    }

References _splitCheck(), _validateAddrSpec(), and _validateRoute().

Referenced by validateMailbox().

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◆ _validateSubdomain()

Mail_RFC822::_validateSubdomain ( $subdomain )

protected

Function to validate a subdomain: subdomain = domain-ref / domain-literal.

Parameters

string $subdomain The string to check.

Returns: boolean Success or failure.

Definition at line 831 of file RFC822.php.

    {
        if (preg_match('|^\[(.*)]$|', $subdomain, $arr)) {
            if (!$this->_validateDliteral($arr[1])) {
                return false;
            }
        } else {
            if (!$this->_validateAtom($subdomain)) {
                return false;
            }
        }
 
        // Got here, so return successful.
        return true;
    }

References _validateAtom(), and _validateDliteral().

Referenced by _validateDomain().

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◆ approximateCount()

Mail_RFC822::approximateCount ( $data )

Returns an approximate count of how many addresses are in the given string.

This is APPROXIMATE as it only splits based on a comma which has no preceding backslash. Could be useful as large amounts of addresses will end up producing large structures when used with parseAddressList().

Parameters

string $data Addresses to count

Returns: int Approximate count

Definition at line 965 of file RFC822.php.

    {
        return count(preg_split('/(?<!\\\\),/', $data));
    }

References $data.

◆ isValidInetAddress()

Mail_RFC822::isValidInetAddress	(	$data,
		$strict = `false`
	)

This is a email validating function separate to the rest of the class.

It simply validates whether an email is of the common internet form: <user><domain>. This can be sufficient for most people. Optional stricter mode can be utilised which restricts mailbox characters allowed to alphanumeric, full stop, hyphen and underscore.

Parameters

string	$data	Address to check
boolean	$strict	Optional stricter mode

Returns: mixed False if it fails, an indexed array username/domain if it matches

Definition at line 983 of file RFC822.php.

    {
        $regex = $strict ? '/^([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})$/i' : '/^([*+!.&#$|\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})$/i';
        if (preg_match($regex, trim($data), $matches)) {
            return array($matches[1], $matches[2]);
        } else {
            return false;
        }
    }

References $data.

◆ parseAddressList()

Mail_RFC822::parseAddressList	(	$address = `null`,
		$default_domain = `null`,
		$nest_groups = `null`,
		$validate = `null`,
		$limit = `null`
	)

Starts the whole process.

The address must either be set here or when creating the object. One or the other.

Parameters

string	$address	The address(es) to validate.
string	$default_domain	Default domain/host etc.
boolean	$nest_groups	Whether to return the structure with groups nested for easier viewing.
boolean	$validate	Whether to validate atoms. Turn this off if you need to run addresses through before encoding the personal names, for instance.

Returns: array A structured array of addresses.

Definition at line 184 of file RFC822.php.

    {
        if (!isset($this) || !isset($this->mailRFC822)) {
            $obj = new Mail_RFC822($address, $default_domain, $nest_groups, $validate, $limit);
            return $obj->parseAddressList();
        }
 
        if (isset($address)) {
            $this->address = $address;
        }
        if (isset($default_domain)) {
            $this->default_domain = $default_domain;
        }
        if (isset($nest_groups)) {
            $this->nestGroups = $nest_groups;
        }
        if (isset($validate)) {
            $this->validate = $validate;
        }
        if (isset($limit)) {
            $this->limit = $limit;
        }
 
        $this->structure = array();
        $this->addresses = array();
        $this->error = null;
        $this->index = null;
 
        // Unfold any long lines in $this->address.
        $this->address = preg_replace('/\r?\n/', "\r\n", $this->address);
        $this->address = preg_replace('/\r\n(\t| )+/', ' ', $this->address);
 
        while ($this->address = $this->_splitAddresses($this->address));
 
        if ($this->address === false || isset($this->error)) {
            // mjansen patch 14 Ap 2016 start
            throw new \ilMailException($this->error);
            // mjansen patch 14 Ap 2016 end
        }
 
        // Validate each address individually.  If we encounter an invalid
        // address, stop iterating and return an error immediately.
        foreach ($this->addresses as $address) {
            $valid = $this->_validateAddress($address);
 
            if ($valid === false || isset($this->error)) {
                // mjansen patch 14 Ap 2016 start
                throw new \ilMailException($this->error);
                // mjansen patch 14 Ap 2016 end
            }
 
            if (!$this->nestGroups) {
                $this->structure = array_merge($this->structure, $valid);
            } else {
                $this->structure[] = $valid;
            }
        }
 
        return $this->structure;
    }

References $address, $default_domain, $limit, $structure, $valid, $validate, _splitAddresses(), _validateAddress(), and error().

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◆ validateMailbox()

Mail_RFC822::validateMailbox ( & $mailbox )

Function to validate a mailbox, which is: mailbox = addr-spec ; simple address / phrase route-addr ; name and route-addr.

Parameters

string &$mailbox The string to check.

Returns: boolean Success or failure.

Definition at line 641 of file RFC822.php.

    {
        // A couple of defaults.
        $phrase = '';
        $comment = '';
        $comments = array();
 
        // Catch any RFC822 comments and store them separately.
        $_mailbox = $mailbox;
        while (strlen(trim($_mailbox)) > 0) {
            $parts = explode('(', $_mailbox);
            $before_comment = $this->_splitCheck($parts, '(');
            if ($before_comment != $_mailbox) {
                // First char should be a (.
                $comment = substr(str_replace($before_comment, '', $_mailbox), 1);
                $parts = explode(')', $comment);
                $comment = $this->_splitCheck($parts, ')');
                $comments[] = $comment;
 
                // +2 is for the brackets
                $_mailbox = substr($_mailbox, strpos($_mailbox, '(' . $comment) + strlen($comment) + 2);
            } else {
                break;
            }
        }
 
        foreach ($comments as $comment) {
            $mailbox = str_replace("($comment)", '', $mailbox);
        }
 
        $mailbox = trim($mailbox);
 
        // Check for name + route-addr
        if (substr($mailbox, -1) == '>' && substr($mailbox, 0, 1) != '<') {
            $parts = explode('<', $mailbox);
            $name = $this->_splitCheck($parts, '<');
 
            $phrase = trim($name);
            $route_addr = trim(substr($mailbox, strlen($name . '<'), -1));
 
            if ($this->_validatePhrase($phrase) === false || ($route_addr = $this->_validateRouteAddr($route_addr)) === false) {
                return false;
            }
 
            // Only got addr-spec
        } else {
            // First snip angle brackets if present.
            if (substr($mailbox, 0, 1) == '<' && substr($mailbox, -1) == '>') {
                $addr_spec = substr($mailbox, 1, -1);
            } else {
                $addr_spec = $mailbox;
            }
 
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        }
 
        // Construct the object that will be returned.
        $mbox = new stdClass();
 
        // Add the phrase (even if empty) and comments
        $mbox->personal = $phrase;
        $mbox->comment = isset($comments) ? $comments : array();
 
        if (isset($route_addr)) {
            $mbox->mailbox = $route_addr['local_part'];
            $mbox->host = $route_addr['domain'];
            $route_addr['adl'] !== '' ? $mbox->adl = $route_addr['adl'] : '';
        } else {
            $mbox->mailbox = $addr_spec['local_part'];
            $mbox->host = $addr_spec['domain'];
        }
 
        $mailbox = $mbox;
        return true;
    }

References $comment, $name, _splitCheck(), _validateAddrSpec(), _validatePhrase(), and _validateRouteAddr().

Referenced by _validateAddress().

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Field Documentation

◆ $address

string Mail_RFC822::$address = ''

The address being parsed by the RFC822 object.

Definition at line 79 of file RFC822.php.

Referenced by __construct(), _isGroup(), _splitAddresses(), _validateAddress(), and parseAddressList().

◆ $addresses

array Mail_RFC822::$addresses = array()

The array of raw addresses built up as we parse.

Definition at line 103 of file RFC822.php.

Referenced by _validateAddress().

◆ $default_domain

string Mail_RFC822::$default_domain = 'localhost'

The default domain to use for unqualified addresses.

Definition at line 85 of file RFC822.php.

Referenced by __construct(), _validateAddrSpec(), and parseAddressList().

◆ $error

string Mail_RFC822::$error = null

The current error message, if any.

Definition at line 115 of file RFC822.php.

◆ $index

integer Mail_RFC822::$index = null

An internal counter/pointer.

Definition at line 121 of file RFC822.php.

◆ $limit

int Mail_RFC822::$limit = null

A limit after which processing stops.

Definition at line 141 of file RFC822.php.

Referenced by __construct(), and parseAddressList().

◆ $mailRFC822

boolean Mail_RFC822::$mailRFC822 = true

A variable so that we can tell whether or not we're inside a Mail_RFC822 object.

Definition at line 135 of file RFC822.php.

◆ $nestGroups

boolean Mail_RFC822::$nestGroups = true

Should we return a nested array showing groups, or flatten everything?

Definition at line 91 of file RFC822.php.

◆ $num_groups

integer Mail_RFC822::$num_groups = 0

The number of groups that have been found in the address list.

@access public

Definition at line 128 of file RFC822.php.

◆ $structure

array Mail_RFC822::$structure = array()

The final array of parsed address information that we build up.

Definition at line 109 of file RFC822.php.

Referenced by _validateAddress(), and parseAddressList().

◆ $validate

boolean Mail_RFC822::$validate = true

Whether or not to validate atoms for non-ascii characters.

Definition at line 97 of file RFC822.php.

Referenced by __construct(), _validateAddrSpec(), and parseAddressList().

The documentation for this class was generated from the following file:

Services/Mail/classes/Address/Parser/RFC822.php

Public Member Functions

Data Fields

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ _hasUnclosedBrackets()

◆ _hasUnclosedBracketsSub()

◆ _hasUnclosedQuotes()

◆ _isGroup()

◆ _splitAddresses()

◆ _splitCheck()

◆ _validateAddress()

◆ _validateAddrSpec()

◆ _validateAtom()

◆ _validateDliteral()

◆ _validateDomain()

◆ _validateLocalPart()

◆ _validatePhrase()

◆ _validateQuotedString()

◆ _validateRoute()

◆ _validateRouteAddr()

◆ _validateSubdomain()

◆ approximateCount()

◆ isValidInetAddress()

◆ parseAddressList()

◆ validateMailbox()

Field Documentation

◆ $address

◆ $addresses

◆ $default_domain

◆ $error

◆ $index

◆ $limit

◆ $mailRFC822

◆ $nestGroups

◆ $num_groups

◆ $structure

◆ $validate