Differential D25031 Diff 83 src/aphront/multipartparser/AphrontMultipartParser.php

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src/aphront/multipartparser/AphrontMultipartParser.php

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	throw new PhutilInvalidStateException('setContentType');	throw new PhutilInvalidStateException('setContentType');
	}	}

	if (!preg_match('(^multipart/form-data)', $content_type)) {	if (!@preg_match('(^multipart/form-data)', $content_type)) {
	throw new Exception(	throw new Exception(
	pht(	pht(
	'Expected "multipart/form-data" content type when executing a '.	'Expected "multipart/form-data" content type when executing a '.
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	$boundary = null;	$boundary = null;
	foreach ($type_parts as $type_part) {	foreach ($type_parts as $type_part) {
	$matches = null;	$matches = null;
	if (preg_match('(^boundary=(.*))', $type_part, $matches)) {	if (@preg_match('(^boundary=(.*))', $type_part, $matches)) {
	$boundary = $matches[1];	$boundary = $matches[1];
	break;	break;
	}	}
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	// indicates we've reached the end of the parts) or "\r\n" (which	// indicates we've reached the end of the parts) or "\r\n" (which
	// indicates we should read the headers for the next part).	// indicates we should read the headers for the next part).

	if (strlen($this->buffer) < 2) {	if (@strlen($this->buffer) < 2) {
	// We don't have enough bytes yet, so wait for more.	// We don't have enough bytes yet, so wait for more.
	$continue = false;	$continue = false;
	break;	break;
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	if (!strncmp($this->buffer, '--', 2)) {	if (!strncmp($this->buffer, '--', 2)) {
	// This is "--" after a boundary, so we're done. We'll read the	// This is "--" after a boundary, so we're done. We'll read the
	// rest of the body (the "epilogue") and discard it.	// rest of the body (the "epilogue") and discard it.
	$this->buffer = substr($this->buffer, 2);	$this->buffer = @substr($this->buffer, 2);
	$this->state = 'epilogue';	$this->state = 'epilogue';

	$this->part = null;	$this->part = null;
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	if (!strncmp($this->buffer, "\r\n", 2)) {	if (!strncmp($this->buffer, "\r\n", 2)) {
	// This is "\r\n" after a boundary, so we're going to going to	// This is "\r\n" after a boundary, so we're going to going to
	// read the headers for a part.	// read the headers for a part.
	$this->buffer = substr($this->buffer, 2);	$this->buffer = @substr($this->buffer, 2);
	$this->state = 'header';	$this->state = 'header';

	// Create the object to hold the part we're about to read.	// Create the object to hold the part we're about to read.
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	// headers and terminated by "\r\n". The section is terminated by	// headers and terminated by "\r\n". The section is terminated by
	// a line with no header on it.	// a line with no header on it.

	if (strlen($this->buffer) < 2) {	if (@strlen($this->buffer) < 2) {
	// We don't have enough data to find a "\r\n", so wait for more.	// We don't have enough data to find a "\r\n", so wait for more.
	$continue = false;	$continue = false;
	break;	break;
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	if (!strncmp("\r\n", $this->buffer, 2)) {	if (!strncmp("\r\n", $this->buffer, 2)) {
	// This line immediately began "\r\n", so we're done with parsing	// This line immediately began "\r\n", so we're done with parsing
	// headers. Start parsing the body.	// headers. Start parsing the body.
	$this->buffer = substr($this->buffer, 2);	$this->buffer = @substr($this->buffer, 2);
	$this->state = 'body';	$this->state = 'body';
	break;	break;
	}	}

	// This is an actual header, so look for the end of it.	// This is an actual header, so look for the end of it.
	$header_len = strpos($this->buffer, "\r\n");	$header_len = @strpos($this->buffer, "\r\n");
	if ($header_len === false) {	if ($header_len === false) {
	// We don't have a full header yet, so wait for more data.	// We don't have a full header yet, so wait for more data.
	$continue = false;	$continue = false;
	break;	break;
	}	}

	$header_buf = substr($this->buffer, 0, $header_len);	$header_buf = @substr($this->buffer, 0, $header_len);
	$this->part->appendRawHeader($header_buf);	$this->part->appendRawHeader($header_buf);

	$this->buffer = substr($this->buffer, $header_len + 2);	$this->buffer = @substr($this->buffer, $header_len + 2);
	break;	break;
	case 'body':	case 'body':
	// We've parsed a boundary and headers, and are parsing the data for	// We've parsed a boundary and headers, and are parsing the data for
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	// we find it.	// we find it.

	$marker = "\r";	$marker = "\r";
	$marker_pos = strpos($this->buffer, $marker);	$marker_pos = @strpos($this->buffer, $marker);

	if ($marker_pos === false) {	if ($marker_pos === false) {
	// There's no "\r" anywhere in the buffer, so we can just read it	// There's no "\r" anywhere in the buffer, so we can just read it
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	if ($marker_pos > 0) {	if ($marker_pos > 0) {
	// If there are bytes before the "\r",	// If there are bytes before the "\r",
	if ($this->part) {	if ($this->part) {
	$this->part->appendData(substr($this->buffer, 0, $marker_pos));	$this->part->appendData(@substr($this->buffer, 0, $marker_pos));
	}	}
	$this->buffer = substr($this->buffer, $marker_pos);	$this->buffer = @substr($this->buffer, $marker_pos);
	}	}

	$expect = "\r\n";	$expect = "\r\n";
	$expect_len = strlen($expect);	$expect_len = @strlen($expect);
	if (strlen($this->buffer) < $expect_len) {	if (@strlen($this->buffer) < $expect_len) {
	// We don't have enough bytes yet to know if this is "\r\n"	// We don't have enough bytes yet to know if this is "\r\n"
	// or not.	// or not.
	$continue = false;	$continue = false;
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	// The next two bytes aren't "\r\n", so eat them and go looking	// The next two bytes aren't "\r\n", so eat them and go looking
	// for more newlines.	// for more newlines.
	if ($this->part) {	if ($this->part) {
	$this->part->appendData(substr($this->buffer, 0, $expect_len));	$this->part->appendData(@substr($this->buffer, 0, $expect_len));
	}	}
	$this->buffer = substr($this->buffer, $expect_len);	$this->buffer = @substr($this->buffer, $expect_len);
	break;	break;
	}	}

	// Eat the "\r\n".	// Eat the "\r\n".
	$this->buffer = substr($this->buffer, $expect_len);	$this->buffer = @substr($this->buffer, $expect_len);
	$this->state = 'bodynewline';	$this->state = 'bodynewline';
	break;	break;
	case 'bodynewline':	case 'bodynewline':
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	// bytes and move on.	// bytes and move on.

	$expect = '--'.$this->boundary;	$expect = '--'.$this->boundary;
	$expect_len = strlen($expect);	$expect_len = @strlen($expect);

	if (strlen($this->buffer) < $expect_len) {	if (@strlen($this->buffer) < $expect_len) {
	// We don't have enough bytes yet, so wait for more.	// We don't have enough bytes yet, so wait for more.
	$continue = false;	$continue = false;
	break;	break;
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	}	}

	// This is the boundary, so toss it and move on.	// This is the boundary, so toss it and move on.
	$this->buffer = substr($this->buffer, $expect_len);	$this->buffer = @substr($this->buffer, $expect_len);
	$this->state = 'endboundary';	$this->state = 'endboundary';
	break;	break;
	case 'epilogue':	case 'epilogue':
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