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首页后端开发php教程用nginx+uwsgi+redis实现游戏GM聊天功能

用nginx+uwsgi+redis实现游戏GM聊天功能

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Aug 08, 2016 am 09:19 AM
msgreturn

原始需求

一个客服GM能够加所有游戏服内的玩家为好友，并能进行聊天。具体功能如下：
* GM上、下线
* 加游戏玩家为好友
* 删游戏玩家为好友
* GM发送聊天消息
* 玩家推送聊天消息
额外限定：一个GM账号能够添加多个游戏玩家为好友，而一个游戏玩家只能被一个GM账号添加

需求分析

因为我们游戏内并没有跨服聊天、跨服好友这种功能，而且以后也不会支持，所以让GM在游戏里面创建角色，然后加各个游戏服的玩家进行聊天的方案是无法实施的。 而且GM实际上并不是一个游戏角色，也不用在游戏内创建。
整个的难点是，如何让各个游戏服访问到GM发过来的各种数据，如何将玩家的数据推送给GM。

具体实现

为了实现GM的数据在各个服务器传递，我们采用了一种简单的方案：将GM的数据放在我们的web服务器上，各个游戏服定时从web服务器去拿数据。
这种方案很简单，web服务器与游戏服不用长连接，直接用http的get和post方法就可以拿数据了。整个架构如下:

<code><span>GM1</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>运维聊天服</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>游戏web服务器</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>游戏服务器1</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>-</span><span>游戏客户端1</span><span>|</span><span>|</span><span>|</span><span>|</span><span>|</span><span>|</span><span>GM2</span><span>游戏服务器2</span><span>游戏客户端2</span></code>

这里客服GM1和GM2都用的web界面与游戏客户端聊天。
运维聊天服存在是因为：
* GM的创建需要运维那边的审批。。
* 游戏的web服务器可以进行白名单审查，只有运维聊天服的ip可以访问游戏的web服务器
上图中只有游戏客户端与游戏服务器是采用的tcp长连接，其他都是使用http短连接来实现。
web服务器采用的是nginx，而不是nodejs。nginx方案挺成熟的，而且部署也很容易。
由于，我对python的熟悉程度比lua程度高很多，所以用了uwsgi来做代理，而不是直接用lua来写。
而数据库则采用的redis，redis设置了定时存盘了。数据格式设置可参考我之前提的文章，基本都是
gm:%d:name这种格式，key表示gmx的名字是什么，val表示名字。

实现代码

nginx和uwsgi的配置已略去。因为隐私原因，相关IP已略去，代码里面也有足够的注释，不再赘述:

<code><span>#encoding: utf-8</span><span>"""
新功能:
* GM注册
* GM上线
* GM下线
* 加游戏玩家为好友
* 删除游戏好友
* GM推聊天信息
* 玩家推聊天信息

---
消息数据格式为utf-8处理后的base64编码：游戏服和GM发过来的都是base64格式，要注意分隔符没做base64处理
GS只能用get方式推送消息，所以参数用类似于urllib quote（urlencode)进行了封装。运维客户端也用get

一个GM账号能添加多个游戏玩家为好友，而一个游戏玩家只能被一个GM账号添加

"""</span><span>from</span> config <span>import</span> *
<span>from</span> json <span>import</span> dumps, loads
<span>import</span> base64
<span>import</span> urllib
<span>import</span> urllib2
<span>import</span> copy
<span>import</span> redis


MSG_SEPARATOR = <span>","</span><span>#分割信息</span>
MAX_RECV_AMOUNT = <span>10</span><span>#每次消息10条吧</span>
MSG_MAX_LEN = <span>500</span><span>#消息不弄太长了</span>CONTENT_TYPE = [(<span>"Content-Type"</span>,<span>"text/html"</span>)]
HTTP_STATUS = {
    <span>200</span>: <span>"200 OK"</span>,
    <span>404</span>: <span>"404 Not Found"</span>,
}

GAME_SERVER_INFO_URL = <span>"http://xxxxxyyyyy"</span>ROLE_INFO_URL = <span>"http://xxyyy?uid=%s&hostnum=%s"</span>red = redis.StrictRedis(host=REDIS.HOST, port=REDIS.PORT, db=REDIS.DB)

<span>#游戏服务器IP白名单</span><span>if</span><span>not</span> globals().has_key(<span>"gServerIP"</span>):
    gServerIP = {}
    res_data = urllib2.urlopen(GAME_SERVER_INFO_URL)
    res = res_data.read()
    res_list = res.split(<span>"\n"</span>)
    <span>for</span> val <span>in</span> res_list: 
        <span>if</span><span>not</span> val:
            <span>continue</span>
        _, port, ip, _  = val.split(<span>" "</span>) 
        gServerIP[ip] = port

gGMIP = {
        <span>"xxxxyyyy"</span> : <span>1</span>,
}

<span><span>def</span><span>is_gm_account_exist</span><span>(account_id)</span>:</span><span>if</span> red.get(<span>"gm_account:%s:name"</span> % account_id):
        <span>return</span><span>1</span><span>return</span><span>0</span><span><span>def</span><span>is_inter_server</span><span>(hostnum)</span>:</span><span>if</span> ( int(hostnum) >= <span>1000</span> ):
        <span>return</span><span>0</span><span>return</span><span>1</span><span><span>def</span><span>check_is_int</span><span>(account_id)</span>:</span><span>try</span>:
        int(account_id)
    <span>except</span>:
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: -<span>1</span>})
    <span>return</span> ()

<span>#gm client ensures the id is unique</span><span><span>def</span><span>gm_create_account</span><span>(env, params)</span>:</span>
    account_id, account_name  = params[<span>"gm_account"</span>], urllib.unquote(params[<span>"gm_name"</span>]) 
    check_res = check_is_int(account_id)
    <span>if</span> check_res: <span>return</span> check_res
    <span>if</span> is_gm_account_exist(account_id):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>1</span>}) <span>#1 the role exists</span>
    red.set(<span>"gm_account:%s:name"</span> % account_id, account_name)
    red.sadd(<span>"gm_online_list"</span>, account_id)
    <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>})

<span>#check param</span><span><span>def</span><span>gm_add_friend</span><span>(env, params)</span>:</span>
    var = gm_account, hostnum, usernum = params[<span>"gm_account"</span>], params[<span>"host"</span>], params[<span>"uid"</span>]
    <span>for</span> num <span>in</span> var:
        check_res = check_is_int(num)
        <span>if</span> check_res: <span>return</span> check_res
    <span>if</span><span>not</span> is_gm_account_exist(gm_account):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>2</span>}) <span>#2 the role doesn't exist</span><span>if</span> ( red.get(<span>"gs_usernum:%s:friend"</span> % usernum) ):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>3</span>}) <span>#3 the usernum has gotten a friend</span><span>#内服计费没存数据，就不处理了</span><span>if</span><span>not</span> is_inter_server(hostnum):
        http_res_data = urllib2.urlopen(ROLE_INFO_URL % (usernum, hostnum))
        res = loads(http_res_data.read())
        <span>if</span> (type(res) != type({})) <span>or</span> (res.get(<span>"code"</span>, <span>0</span>) != <span>1</span>):
            <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>4</span>}) <span>#4 the uid doesn't exist</span>    red.sadd(<span>"gm_account:%s:friend"</span> % gm_account, usernum) <span>#两边都处理下</span>    red.sadd(<span>"gs_hostnum:%s"</span> % hostnum, usernum) <span>#记录该服务器的所有玩家</span>
    red.set(<span>"gs_usernum:%s:hostnum"</span> % usernum, hostnum) <span>#该玩家的信息</span>
    red.set(<span>"gs_usernum:%s:friend"</span> % usernum, gm_account) <span>#一个玩家只能被一个gm添加为好友</span>    red.sadd(<span>"apply_frd_list"</span>, usernum) <span>#usernum will be added </span>
    red.hdel(<span>"remove_frd_list"</span>, usernum) <span>#信息残留</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>}) 

<span><span>def</span><span>gm_remove_friend</span><span>(env, params)</span>:</span>
    account_id, uid = params[<span>"gm_account"</span>], params[<span>"uid"</span>]
    <span>if</span><span>not</span> is_gm_account_exist(account_id):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>2</span>}) <span>#2 the role doesn't exist</span><span>if</span> red.get(<span>"gs_usernum:%s:friend"</span> % uid) != account_id:
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>5</span>})  <span># the usernum has friend but isn't the gm</span><span>if</span><span>not</span> red.srem(<span>"gm_account:%s:friend"</span> % account_id, uid):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>4</span>})  <span># the usernum is not a friend of the gm</span>    hostnum = red.get(<span>"gs_usernum:%s:hostnum"</span> % uid)
    red.delete(<span>"gs_usernum:%s:hostnum"</span> % uid) <span>#合服考虑，如果合服了GM手动删除这个玩家吧</span>
    red.srem(<span>"gs_hostnum:%s"</span> % hostnum, uid)

    red.delete(<span>"gs_usernum:%s:friend"</span> % uid) 
    red.hset(<span>"remove_frd_list"</span>, uid, hostnum) <span>#uid的信息已经丢失，先额外保存下hostnum信息</span>
    red.srem(<span>"apply_frd_list"</span>, uid) <span>#信息残留</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>}) 

<span>#GM账号很少</span><span><span>def</span><span>gm_online</span><span>(env, params)</span>:</span>
    account_id = params[<span>"gm_account"</span>] <span>#可能客户端bug没发下线，直接sadd吧</span><span>if</span><span>not</span> is_gm_account_exist(account_id):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>2</span>}) <span>#2 the role doesn't exist</span>
    red.sadd(<span>"gm_online_list"</span>, account_id)
    <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>})

<span><span>def</span><span>gm_offline</span><span>(env, params)</span>:</span>
    account_id = params[<span>"gm_account"</span>]
    <span>if</span><span>not</span> red.srem(<span>"gm_online_list"</span>, account_id):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>})
    <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>})

<span>#存在usernum上,gs_msg和gm_msg</span><span><span>def</span><span>gm_sendmsg</span><span>(env, params)</span>:</span>
    account_id, uid, msg = params[<span>"gm_account"</span>], params[<span>"uid"</span>], urllib.unquote(params[<span>"msg"</span>]) <span>#只能向好友发</span><span>if</span><span>not</span> red.sismember(<span>"gm_account:%s:friend"</span> % account_id, uid):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>4</span>})  <span># the usernum is not a friend of the gm</span><span>if</span> red.get(<span>"gs_usernum:%s:friend"</span> % uid) != account_id:
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>5</span>})  <span># the usernum has friend but isn't the gm or doesn't have</span>
    red.lpush(<span>"gs_usernum:%s:msg_from_gm"</span> % uid, msg)
    red.sadd(<span>"gm_newmsg_list"</span>, uid) <span>#gs get msg from this set</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>})

<span>#gm轮训所有的，他那边还有个服务器...</span><span>#{gm_account:{"uid": msg, "uid2": msg2}}</span><span><span>def</span><span>gm_receivemsg</span><span>(env, params)</span>:</span>
    user_set = copy.copy(red.smembers(<span>"gs_newmsg_list"</span>))
    msg_data = {}
    <span>for</span> uid <span>in</span> user_set:
        gm_account = red.get(<span>"gs_usernum:%s:friend"</span> % uid)
        <span>if</span><span>not</span> gm_account: <span>#理论上是不会</span><span>continue</span>
        msg_list = pop_msg(uid, <span>"msg_from_gs"</span>)
        send_msg = MSG_SEPARATOR.join(msg_list)
        <span>if</span><span>not</span> send_msg:
            <span>continue</span><span>if</span><span>not</span> gm_account <span>in</span> msg_data:
            msg_data[gm_account] = []
        msg_data[gm_account].append({<span>"uid"</span> : uid, <span>"msg"</span> : send_msg})
        <span>#red.srem("gs_newmsg_list", uid)</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>, <span>"data"</span>: base64.b64encode(dumps(msg_data))})

<span><span>def</span><span>pop_msg</span><span>(uid, msg_type)</span>:</span>
    msg_list = []
    msg_key = <span>"gs_usernum:%s:%s"</span> % (uid, msg_type)
    msg_len = min(MAX_RECV_AMOUNT, red.llen(msg_key))
    <span>for</span> i <span>in</span> xrange(msg_len):
        piece_msg = red.rpop(msg_key)
        msg_list.append(piece_msg)
    <span>return</span> msg_list

<span>#---------------------GS----------------------</span><span>#apply and remove</span><span><span>def</span><span>get_frd_relation</span><span>(env, params)</span>:</span>
    host = params[<span>"host"</span>]

    apply_user_set = copy.copy(red.smembers(<span>"apply_frd_list"</span>))
    apply_data = {}  <span>#{"res":1 "data":base64({uid: gm_account})}</span><span>for</span> uid <span>in</span> apply_user_set:
        hostnum = red.get(<span>"gs_usernum:%s:hostnum"</span> % uid)
        <span>if</span> hostnum != host:
            <span>continue</span>
        account_id = red.get(<span>"gs_usernum:%s:friend"</span> % uid)
        <span>if</span><span>not</span> account_id: <span>#error </span><span>continue</span>        apply_data[uid] = [account_id, red.get(<span>"gm_account:%s:name"</span> % account_id)]
        red.srem(<span>"apply_frd_list"</span>, uid)


    del_user_list = red.hkeys(<span>"remove_frd_list"</span>)
    remove_list = []
    <span>for</span> uid <span>in</span> del_user_list:
        hostnum = red.hget(<span>"remove_frd_list"</span>, uid)
        <span>if</span> hostnum != host:
            <span>continue</span>
        remove_list.append(uid)
        red.hdel(<span>"remove_frd_list"</span>, uid)
    <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>, <span>"apply_data"</span>: base64.b64encode(dumps(apply_data)), <span>"remove_data"</span>: base64.b64encode(dumps(remove_list))})   

<span><span>def</span><span>gs_sendmsg</span><span>(env, params)</span>:</span>
    uid, msg = params[<span>"uid"</span>], urllib.unquote(params[<span>"msg"</span>])
    <span>if</span><span>not</span> red.get(<span>"gs_usernum:%s:friend"</span> % uid):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>0</span>, <span>"errno"</span>: <span>5</span>})  <span># the usernum has friend but isn't the gm or doesn't have</span>
    red.lpush(<span>"gs_usernum:%s:msg_from_gs"</span> % uid, msg)
    red.sadd(<span>"gs_newmsg_list"</span>, uid) <span>#gm get msg from this set</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>})

<span><span>def</span><span>gs_receivemsg</span><span>(env, params)</span>:</span>
    host = params[<span>"host"</span>]
    user_set = copy.copy(red.smembers(<span>"gm_newmsg_list"</span>))
    total_msg_list = [] 
    <span>for</span> uid <span>in</span> user_set:
        hostnum = red.get(<span>"gs_usernum:%s:hostnum"</span> % uid)
        <span>if</span> hostnum != host:
            <span>continue</span>
        msg_list = pop_msg(uid, <span>"msg_from_gm"</span>)
        user_msg = MSG_SEPARATOR.join(msg_list)
        <span>if</span><span>not</span> user_msg:
            <span>continue</span>
        msg_data = {
                <span>"uid"</span>   : uid,
                <span>"msg"</span>   : user_msg,
        }
        total_msg_list.append(msg_data)
    <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>, <span>"data"</span>: base64.b64encode(dumps(total_msg_list))})

<span><span>def</span><span>get_online_list</span><span>(env, params)</span>:</span>
    host = params[<span>"host"</span>]
    send_list = []
    online_list = red.smembers(<span>"gm_online_list"</span>)
    <span>for</span> account_id <span>in</span> online_list:
        frd_set = red.smembers(<span>"gm_account:%s:friend"</span> % account_id)
        <span>for</span> uid <span>in</span> frd_set:
            <span>if</span> red.get(<span>"gs_usernum:%s:hostnum"</span> % uid) == host:
                send_list.append(account_id) <span>#只有这个服务器有gm的好友，才通知</span><span>break</span><span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, dumps({<span>"res"</span>: <span>1</span>, <span>"data"</span>: base64.b64encode(dumps(send_list))})

<span>#get:  action=create&gm_account&gm_name  创建账号</span><span>#get:  action=add&gm_account&host&uid 添加好友</span><span>#get:  action=del&gm_account&uid 删除好友</span><span>#get:  action=online&gm_account上线</span><span>#get:  action=offline&gm_account 下线</span><span>#get:  action=send&gm_account&uid&msg 发送消息</span><span>#get:  action=receive 轮训消息</span>
GM_FUNC = {
        <span>"create"</span>    : gm_create_account,
        <span>"add"</span>       : gm_add_friend,
        <span>"del"</span>       : gm_remove_friend,
        <span>"online"</span>    : gm_online,
        <span>"offline"</span>   : gm_offline,
        <span>"send"</span>      : gm_sendmsg,
        <span>"receive"</span>   : gm_receivemsg,
}

<span><span>def</span><span>handle_gm_ticket</span><span>(env, params)</span>:</span><span>if</span><span>not</span> gGMIP.get(env[<span>"REMOTE_ADDR"</span>], <span>0</span>):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, <span>"%s has no access to the website"</span> % env[<span>"REMOTE_ADDR"</span>]
    func = GM_FUNC.get(params[<span>"action"</span>], <span>None</span>)
    <span>if</span><span>not</span> func:
        <span>return</span> HTTP_STATUS[<span>404</span>], CONTENT_TYPE, <span>"err action %s"</span> % params[<span>"action"</span>]
    <span>return</span> func(env, params)

<span>#get    action=relation&host</span><span>#get    action=send&uid&msg</span><span>#get    action=receive&host</span><span>#get    action=online&host        </span>
GS_FUNC = { 
        <span>"relation"</span>  : get_frd_relation,
        <span>"send"</span>      : gs_sendmsg,
        <span>"receive"</span>   : gs_receivemsg,
        <span>"online"</span>    : get_online_list,
}

<span><span>def</span><span>handle_gs_ticket</span><span>(env, params)</span>:</span><span>if</span><span>not</span> gServerIP.get(env[<span>"REMOTE_ADDR"</span>], <span>0</span>):
        <span>return</span> HTTP_STATUS[<span>200</span>], CONTENT_TYPE, <span>"%s has no access to the website"</span> % env[<span>"REMOTE_ADDR"</span>]
    func = GS_FUNC.get(params[<span>"action"</span>], <span>None</span>)
    <span>if</span><span>not</span> func:
        <span>return</span> HTTP_STATUS[<span>404</span>], CONTENT_TYPE, <span>"err action %s"</span> % params[<span>"action"</span>]
    <span>return</span> func(env, params)

</code>

版权声明：本文为博主原创文章，未经博主允许不得转载。

以上就介绍了用nginx+uwsgi+redis实现游戏GM聊天功能，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。

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