Differential D25031 Diff 83 src/applications/calendar/parser/ics/PhutilICSParser.php

Changeset View

Standalone View

src/applications/calendar/parser/ics/PhutilICSParser.php

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	foreach ($lines as $key => $line) {	foreach ($lines as $key => $line) {
	$this->cursor = $key;	$this->cursor = $key;
	$matches = null;	$matches = null;
	if (preg_match('(^BEGIN:(.*)\z)', $line, $matches)) {	if (@preg_match('(^BEGIN:(.*)\z)', $line, $matches)) {
	$this->beginParsingNode($matches[1]);	$this->beginParsingNode($matches[1]);
	} else if (preg_match('(^END:(.*)\z)', $line, $matches)) {	} else if (@preg_match('(^END:(.*)\z)', $line, $matches)) {
	$this->endParsingNode($matches[1]);	$this->endParsingNode($matches[1]);
	} else {	} else {
	if (count($this->stack) < 2) {	if (count($this->stack) < 2) {
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	$last = null;	$last = null;
	foreach ($lines as $idx => $line) {	foreach ($lines as $idx => $line) {
	$this->cursor = $idx;	$this->cursor = $idx;
	if (!preg_match('/^[ \t]/', $line)) {	if (!@preg_match('/^[ \t]/', $line)) {
	$last = $idx;	$last = $idx;
	continue;	continue;
	}	}
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	'marks a line which should be unfolded.'));	'marks a line which should be unfolded.'));
	}	}

	$lines[$last] = $lines[$last].substr($line, 1);	$lines[$last] = $lines[$last].@substr($line, 1);
	unset($lines[$idx]);	unset($lines[$idx]);
	}	}

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	// by either a ";" (to begin a list of parameters) or a ":" (to begin	// by either a ";" (to begin a list of parameters) or a ":" (to begin
	// the actual field body).	// the actual field body).

	$ok = preg_match('(^([A-Za-z0-9-]+)([;:])(.*)\z)', $line, $matches);	$ok = @preg_match('(^([A-Za-z0-9-]+)([;:])(.*)\z)', $line, $matches);
	if (!$ok) {	if (!$ok) {
	$this->raiseParseFailure(	$this->raiseParseFailure(
	self::PARSE_MALFORMED_PROPERTY,	self::PARSE_MALFORMED_PROPERTY,
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	while (true) {	while (true) {
	// We're going to get the first couple of parts first.	// We're going to get the first couple of parts first.
	$ok = preg_match('(^([^=]+)=)', $body, $matches);	$ok = @preg_match('(^([^=]+)=)', $body, $matches);
	if (!$ok) {	if (!$ok) {
	$this->raiseParseFailure(	$this->raiseParseFailure(
	self::PARSE_MALFORMED_PARAMETER_NAME,	self::PARSE_MALFORMED_PARAMETER_NAME,
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	}	}

	$param_name = $matches[1];	$param_name = $matches[1];
	$body = substr($body, strlen($matches[0]));	$body = @substr($body, @strlen($matches[0]));

	// Now we're going to match zero or more values.	// Now we're going to match zero or more values.
	$param_values = array();	$param_values = array();
	while (true) {	while (true) {
	// The value can either be a double-quoted string or an unquoted	// The value can either be a double-quoted string or an unquoted
	// string, with some characters forbidden.	// string, with some characters forbidden.
	if (strlen($body) && $body[0] == '"') {	if (@strlen($body) && $body[0] == '"') {
	$is_quoted = true;	$is_quoted = true;
	$ok = preg_match(	$ok = @preg_match(
	'(^"([^\x00-\x08\x10-\x19"]*)")',	'(^"([^\x00-\x08\x10-\x19"]*)")',
	$body,	$body,
	$matches);	$matches);
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	// It's impossible for this not to match since it can match	// It's impossible for this not to match since it can match
	// nothing, and it's valid for it to match nothing.	// nothing, and it's valid for it to match nothing.
	preg_match('(^([^\x00-\x08\x10-\x19";:,]*))', $body, $matches);	@preg_match('(^([^\x00-\x08\x10-\x19";:,]*))', $body, $matches);
	}	}

	// NOTE: RFC5545 says "Property parameter values that are not in	// NOTE: RFC5545 says "Property parameter values that are not in
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	'quoted' => $is_quoted,	'quoted' => $is_quoted,
	);	);

	$body = substr($body, strlen($matches[0]));	$body = @substr($body, @strlen($matches[0]));
	if (!strlen($body)) {	if (!@strlen($body)) {
	$this->raiseParseFailure(	$this->raiseParseFailure(
	self::PARSE_MISSING_VALUE,	self::PARSE_MISSING_VALUE,
	pht(	pht(
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	// If we have a comma now, we're going to read another value. Strip	// If we have a comma now, we're going to read another value. Strip
	// it off and keep going.	// it off and keep going.
	if ($body[0] == ',') {	if ($body[0] == ',') {
	$body = substr($body, 1);	$body = @substr($body, 1);
	continue;	continue;
	}	}

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	);	);

	if ($body[0] == ';') {	if ($body[0] == ';') {
	$body = substr($body, 1);	$body = @substr($body, 1);
	continue;	continue;
	}	}

	if ($body[0] == ':') {	if ($body[0] == ':') {
	$body = substr($body, 1);	$body = @substr($body, 1);
	break;	break;
	}	}
	}	}
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	break;	break;
	case 'DATE':	case 'DATE':
	// This is a comma-separated list of "YYYYMMDD" values.	// This is a comma-separated list of "YYYYMMDD" values.
	$result = explode(',', $data);	$result = @explode(',', $data);
	break;	break;
	case 'DATE-TIME':	case 'DATE-TIME':
	if (!strlen($data)) {	if (!@strlen($data)) {
	$result = array();	$result = array();
	} else {	} else {
	$result = explode(',', $data);	$result = @explode(',', $data);
	}	}
	break;	break;
	case 'DURATION':	case 'DURATION':
	if (!strlen($data)) {	if (!@strlen($data)) {
	$result = array();	$result = array();
	} else {	} else {
	$result = explode(',', $data);	$result = @explode(',', $data);
	}	}
	break;	break;
	case 'FLOAT':	case 'FLOAT':
	$result = explode(',', $data);	$result = @explode(',', $data);
	foreach ($result as $k => $v) {	foreach ($result as $k => $v) {
	$result[$k] = (float)$v;	$result[$k] = (float)$v;
	}	}
	break;	break;
	case 'INTEGER':	case 'INTEGER':
	$result = explode(',', $data);	$result = @explode(',', $data);
	foreach ($result as $k => $v) {	foreach ($result as $k => $v) {
	$result[$k] = (int)$v;	$result[$k] = (int)$v;
	}	}
	break;	break;
	case 'PERIOD':	case 'PERIOD':
	$result = explode(',', $data);	$result = @explode(',', $data);
	break;	break;
	case 'RECUR':	case 'RECUR':
	$result = $data;	$result = $data;
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	$result = $this->unescapeTextValue($data);	$result = $this->unescapeTextValue($data);
	break;	break;
	case 'TIME':	case 'TIME':
	$result = explode(',', $data);	$result = @explode(',', $data);
	break;	break;
	case 'URI':	case 'URI':
	$result = $data;	$result = $data;
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	$value = head($value);	$value = head($value);
	$tzid = $this->getScalarParameterValue($parameters, 'TZID');	$tzid = $this->getScalarParameterValue($parameters, 'TZID');

	if (preg_match('/Z\z/', $value)) {	if (@preg_match('/Z\z/', $value)) {
	if ($tzid) {	if ($tzid) {
	$this->raiseWarning(	$this->raiseWarning(
	self::WARN_TZID_UTC,	self::WARN_TZID_UTC,
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	'/i';	'/i';

	$matches = null;	$matches = null;
	if (preg_match($offset_pattern, $tzid, $matches)) {	if (@preg_match($offset_pattern, $tzid, $matches)) {
	$hours = (int)$matches['h'];	$hours = (int)$matches['h'];
	$minutes = (int)idx($matches, 'm');	$minutes = (int)idx($matches, 'm');
	$offset = ($hours * 60 * 60) + ($minutes * 60);	$offset = ($hours * 60 * 60) + ($minutes * 60);
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