短地址服务（二）
编写lua脚本split.lua
function split(str,pat) local t = {} local fpat = "(.-)" .. pat local last_end = 1 local s,e,cap = str:find(fpat,1) while s do if s ~= 1 or cap ~= "" then table.insert(t,cap) end last_end = e+1 s,e,cap = str:find(fpat,last_end) end if last_end <= #str then cap = str:sub(last_end) table.insert(t,cap) end return t end function split_path(str) return split(str,'[\\/]') end
在nginx.conf中脚本如下：
redis无密码：
#user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; #keepalive_timeout 65; #gzip on; init_worker_by_lua_file D:/split.lua; server { listen 80; location = /redis { internal; set_unescape_uri $key $arg_key; redis2_query get $key; redis2_pass 127.0.0.1:6379; } location / { set $target ''; access_by_lua ' local parameters = split_path(ngx.var.uri) local action = parameters[1] if(#parameters == 0) then ngx.exit(ngx.HTTP_FORBIDDEN) end local key = action local res = ngx.location.capture( "/redis", { args = { key = key } } )if res.status ~= 200 then ngx.log(ngx.ERR, "redis server returned bad status: ", res.status) ngx.exit(res.status) end if not res.body then ngx.log(ngx.ERR, "redis returned empty body") ngx.exit(500) end local parser = require "redis.parser" local server, typ = parser.parse_reply(res.body) if typ ~= parser.BULK_REPLY or not server then ngx.log(ngx.ERR, "bad redis response: ", res.body) ngx.exit(500) end if server == "" then server = "default.com" end server = server if ngx.var.QUERY_STRING ~= nil and ngx.var.QUERY_STRING ~= "" then server = server .."&"..ngx.var.QUERY_STRING end ngx.var.target = server '; resolver 8.8.8.8; proxy_pass http://$target; #server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } } }
redis有密码（持续优化中）：
#user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; #keepalive_timeout 65; #gzip on; init_worker_by_lua_file D:/split.lua; #init_worker_by_lua_file D:/redis_iresty.lua; server { listen 80; location / { set $target ''; access_by_lua ' local parameters = split_path(ngx.var.uri) local action = parameters[1] if(#parameters == 0) then ngx.exit(ngx.HTTP_FORBIDDEN) end local function pool_redis(red) if not red then return end --释放连接(连接池实现) local pool_max_idle_time = 10000 --毫秒 local pool_size = 500 --连接池大小 local ok, err = red:set_keepalive(pool_max_idle_time, pool_size) if not ok then ngx.say("set keepalive error : ", err) end end local redis = require "resty.redis" local red = redis:new() red:set_timeout(6000) local ok, err = red:connect("redis地址", 6379) if not ok then ngx.say("failed to connect: ", err) return pool_redis(red) end local res, err = red:auth("redis密码") if not res then ngx.say("failed to authenticate: ", err) return pool_redis(red) end local server, err = red:get(action) if not server then ngx.log(ngx.ERR, "bad redis response: ", server) ngx.exit(500) return pool_redis(red) end if server == "" then server = "default.com" end server = server if ngx.var.QUERY_STRING ~= nil and ngx.var.QUERY_STRING ~= "" then server = server .."&"..ngx.var.QUERY_STRING end ngx.var.target = server '; resolver 8.8.8.8; proxy_pass $target; #server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } } }
