Question

我正在将推送服务器服务器与谷歌代码中的代码（php-apns）集成。除了每条消息的字节数外，一切似乎都很好。

每个有效负载的字节数最多为256个字符。

如果发送了一些Chinse字符或UTF8字符。在JSON_enode之后，每个字符将占用6个字节。我是对的吗？

因此每个推送消息中的最大UTF8字符数大约为38。

但是...... Whatsapp（iPhone应用程序）也使用PUSH，但是它可以推送更多中文字符......在一个推送消息中？

任何提示？

Answer 1

以下是您问题的解决方案：

转到〜/ APNS / Message.php

并替换此功能：

public function getPayload() {...}

用这个：

/**
 * Convert the message in a JSON-encoded payload.
 *
 * @throws ApnsPHP_Message_Exception if payload is longer than maximum allowed
 *         size and AutoAdjustLongPayload is disabled.
 * @return @type string JSON-encoded payload.
 */
public function getPayload()
{
    $sJSONString = preg_replace_callback('/\\\u([0-9a-f]{4})/i', 
                        function($matches) {
                            if (function_exists('mb_convert_encoding')) {
                                return mb_convert_encoding(pack('H*', $matches[1]), 'UTF-8', 'UTF-16');
                            } else {
                                //Slower conversion from UTF-16 to UTF-8 (BMP Only)
                                //See: http://www.cl.cam.ac.uk/~mgk25/unicode.html
                                $decimal_code = hexdec($matches[1]);
                                $character = "";
                                if ((0x7F & $decimal_code) == $decimal_code) {
                                    //UTF-8 1-byte aka ASCII
                                    $first_byte     = 0x7F & $decimal_code;
                                    $character      = chr($first_byte);
                                } elseif ((0x7FF & $decimal_code) == $decimal_code) {
                                    //UTF-8 2-bytes
                                    $first_byte     = 0xC0 | (($decimal_code >> 6) & 0x1F);
                                    $second_byte    = 0x80 | ($decimal_code & 0x3F);
                                    $character      = chr($first_byte) . chr($second_byte);
                                } elseif ((0xFFFF & $decimal_code) == $decimal_code) {
                                    //UTF-8 3-bytes
                                    $first_byte     = 0xE0 | (($decimal_code >> 12) & 0x0F);
                                    $second_byte    = 0x80 | (($decimal_code >> 6) & 0x3F);
                                    $third_byte     = 0x80 | ($decimal_code & 0x3F);
                                    $character      = chr($first_byte) . chr($second_byte) . chr($third_byte);
                                }
                                return $character;
                            }
                        },
                        json_encode($this->_getPayload()));
    $sJSONPayload = str_replace(
        '"' . self::APPLE_RESERVED_NAMESPACE . '":[]',
        '"' . self::APPLE_RESERVED_NAMESPACE . '":{}',
        $sJSONString
    );
    $nJSONPayloadLen = strlen($sJSONPayload);

    if ($nJSONPayloadLen > self::PAYLOAD_MAXIMUM_SIZE) {
        if ($this->_bAutoAdjustLongPayload) {
            $nMaxTextLen = $nTextLen = strlen($this->_sText) - ($nJSONPayloadLen - self::PAYLOAD_MAXIMUM_SIZE);
            if ($nMaxTextLen > 0) {
                while (strlen($this->_sText = mb_substr($this->_sText, 0, --$nTextLen, 'UTF-8')) > $nMaxTextLen);
                return $this->getPayload();
            } else {
                throw new ApnsPHP_Message_Exception(
                    "JSON Payload is too long: {$nJSONPayloadLen} bytes. Maximum size is " .
                    self::PAYLOAD_MAXIMUM_SIZE . " bytes. The message text can not be auto-adjusted."
                );
            }
        } else {
            throw new ApnsPHP_Message_Exception(
                "JSON Payload is too long: {$nJSONPayloadLen} bytes. Maximum size is " .
                self::PAYLOAD_MAXIMUM_SIZE . " bytes"
            );
        }
    }

    return $sJSONPayload;
}

多田！现在你将能够毫无问题地收到长utf-8信息。

source

Answer 2

我发现了。

如果那些UTF8中文字符是JSON_encoded，那么它将被转换为6个字符。

因此，我需要修改php-apns以确保将这些UTF8字符放入JSON_encoded字符串以节省空间

Apple推送消息

2 个答案: