Gammu runonreceive不传递变量

Question

我想配置我的Rapsberry作为一个短信乒乓球运动员。因此，我安装了gammu-smsd，并将gammu-smsdrc配置如下：

# Configuration file for Gammu SMS Daemon

# Gammu library configuration, see gammurc(5)
[gammu]
# Please configure this!
port = /dev/ttyUSB3
pin= 4135
connection = at
# Debugging
logformat = textall

# SMSD configuration, see gammu-smsdrc(5)
[smsd]
RunOnReceive = sudo /var/spool/gammu/receivesms.sh
service = files
pin = 4135
# Increase for debugging information
debuglevel = 1
logfile = /var/spool/gammu/gammu.log
include_smsc = 491722270333

# Paths where messages are stored
inboxpath = /var/spool/gammu/inbox/
outboxpath = /var/spool/gammu/outbox/
sentsmspath = /var/spool/gammu/sent/
errorsmspath = /var/spool/gammu/error/

到目前为止，发送短信接收短信工作良好！

所以我试了一下跑步接收的方法。并编写了一个小脚本，它应该得到短信发送者的号码和文本。如果文本是"ping“，gammu-smsd应该将乒乓发件人发回。

reveivessms.sh：

#!/bin/sh
from=$SMS_1_NUMBER
message=$SMS_1_TEXT
reply=""

if test "$message" = "Ping"; then
    reply="Pong!"
else
    reply="Y U NO PLAY PING PONG?"
fi


sudo echo "$reply" | /usr/bin/gammu-smsd-inject -c /etc/gammu-smsdrc TEXT "$from"

gammu.log是：

Wed 2016/05/25 09:04:31 gammu-smsd[21681]: Received message from: +49160xxxxx
Wed 2016/05/25 09:04:31 gammu-smsd[21681]: Read 1 messages
Wed 2016/05/25 09:04:31 gammu-smsd[21681]: Received IN20160525_090429_00_+49160xxxxxx_00.txt
Wed 2016/05/25 09:04:31 gammu-smsd[21994]: Starting run on receive: sudo /var/spool/gammu/receivesms.sh IN20160525_090429_00_+49160xxxxxx_00.txt 
Wed 2016/05/25 09:04:31 gammu-smsd[21681]: Process finished successfully
Wed 2016/05/25 09:04:53 gammu-smsd[21681]: Found 1 sms to "" with text "Y U NO PLAY PING PONG?" cod 3 lgt 22 udh: t 1 l 0 dlr: -1 fls: -1
Wed 2016/05/25 09:04:53 gammu-smsd[21681]: New message to send: OUTC20160525_090431_00__sms0.smsbackup
Wed 2016/05/25 09:04:53 gammu-smsd[21681]: Message without SMSC, assuming you want to use the one from phone
Wed 2016/05/25 09:05:19 gammu-smsd[21681]: SMS sent on device: "/dev/ttyUSB3" status=500, reference=-1
Wed 2016/05/25 09:05:19 gammu-smsd[21681]: Error getting send status of message: Unknown error. (UNKNOWN[27])

嗯没有留言回答..。

因此，我尝试不传递参数，并将receivesms.sh更改为：

#!/bin/sh
sudo echo Gude Wie | /usr/bin/gammu-smsd-inject -c /etc/gammu-smsdrc TEXT 49160xxxx

一切都正常。似乎，传递给receicesms.sh的变量不起作用。但我不知道为什么？

Answer 1

通过gammu-smsd-inject来发送短信回复是一项任务。

对任何遇到这个问题的人来说。我通过将命令的stdout和stderr重定向到/dev/null来解决这个问题。

echo "This somehow works" | gammu-smsd-inject TEXT $from > /dev/null 2>&1

问候

Answer 2

问题是sudo没有将环境变量保留在默认配置中，所以我建议您避免在脚本中使用sudo。将SMSD作为root运行也是潜在的安全风险，因为如果在SMS解码中出现一些错误，攻击者将直接以root身份运行。

因此，最好以用户身份运行SMSD，并相应地更改/var/spool/gammu和调制解调器/电话设备的权限。

如果坚持以root方式运行SMSD，请更改sudo配置以保持环境变量，请参见How to keep Environment Variables when Using SUDO。