OnCity 小站 My Blog

yss=
^_

:help rails
:CoffeeCompile watch vert

⌃W: 选中当前word
ctrl + ⌘ +上下键：移动整行，整段
auto generate tag: tag name after ctrl+shift+<
cmd+return ove to the end of line and insert a newline
^k Kill until end of line (^y Yank it back!)
ctrl + shift + k 删除一行代码

cmd+backspace delete until head of line
shift^d duplicate current line
cmd / toggle comment
shift^>
ctrl + option + cmd + V 从历史中选择内容粘帖
option|ctrl + -> 光标向右移动一个单词
⇧⌘L (Edit → Select → Line) Select current Line
⇧⌘B (Edit → Select → Enclosing Brackets) Select enclosing Smart Typing Pair (see Preference Items).

Nginx + Lua + Redis

redis_parser = require "redis.parser"

function redis_query(reqs)
    local raw_reqs = {}
    for i, req in ipairs(reqs) do
       table.insert(raw_reqs, redis_parser.build_query(req))
    end
    local res = ngx.location.capture("/redis2?" .. #reqs, { body = table.concat(raw_reqs, "") })
    if res.status ~= 200 or not res.body then
        ngx.log(ngx.ERR, "failed to query redis")
        ngx.exit(500)
    end
    return redis_parser.parse_replies(res.body,#reqs)
end

local query = {
    {"srandmember","oncity:iknow"},
    {"hincrby","counter:domain:"..ngx.today(),"all",1},
}

local url = ngx.var.http_referer
if url~=nil then
    url = string.lower(url)
    local md5_key = ngx.md5(url)
    table.insert(query, {"zincrby","counter:top",1,md5_key} )
    table.insert(query, {"hsetnx","counter:url",md5_key,url} )
    local m = ngx.re.match(url, "^http://(\\w+).oncity","i")
    if m ~= nil then
        table.insert(query,{"hincrby","counter:domain:"..ngx.today(),m[1],1})
    end
end

local replies = redis_query(query)
ngx.say("document.write('",replies[1][1],"');")

第一招,傻瓜式
优点: 简单
不足之处: 只能防普通页面盗链

valid_referers none blocked *.foo.com;
if ($invalid_referer) {
	return 403;
}

第二招进阶式 通过 nginx-accesskey 增强
优点: 针对不同的IP访问成生不同的 Key 相对安全
不足之处: 只要是同IP , Key 就会相同…形成虚设

location /mp3/ {
	  alias /www/mp3/;
	  accesskey             on;
	  accesskey_hashmethod  md5;
	  accesskey_arg         "key";
	  accesskey_signature   "yourpasswd$remote_addr";
}

第三招复杂进阶式 nginx-accesskey + url + 网站页面登陆控制
优点: 加入 url 作生成 Key ,相对安全
如果能设定过期时间就更好了.

location /mp3/ {
	  alias /www/mp3/;
	  accesskey             on;
	  accesskey_hashmethod  md5;
	  accesskey_arg         "key";
	  accesskey_signature   "yourpasswd$remote_addr$uri";
	  limit_conn    one 1;
	  limit_rate    16k;
}

批量改名 gif 版

#!/bin/bash
n=0;
for file in `ls *.gif`; do
	let n+ +;
	echo $file to $n.gif;
	mv $file $n.gif;
done;

cat a.url | while read i;do grep $i d.url; done

http://www.gznow.org/bbs/index.php

http://bbs.maxthon.cn/

http://www.kidulty.com/

http://www.artery.cn/

http://www.023xj.com/

中国的网民就是这样老实，10年不变坚持用XP + IE6

其实升级一下有多难？这是微软的成功？还是失败？

[幻灯片方式显示]

[使用PicLens查看]

呵。有意思。