ibaobei 发表于 2018-11-15 10:54:58

ftp+nginx+lua_Nginx+GraphicsMagick来实现目录浏览、实时缩略图

  一、FTP服务器安装配置
  1、rpm -ivh vsftpd-2.2.2-11.el6_4.1.i686.rpm
  2、service vsftpd start
  3、chkconfig vsftpd on
  4、配置
  cp /etc/vsftpd/vsftpd.conf /etc/vsftpd/vsftpd.conf.bak
  vim /etc/vsftpd/vsftpd.conf
  12 anonymous_enable=NO 禁止匿名访问
  ...
  121 chroot_local_user=yes 禁锢登录目录
  122 local_root=/usr/local/nginx/html/test 改登录目录为/usr/local/nginx/html/test
  123 userlist_deny=NO 白名单生效
  124 max_clients=20 最大并发客户端
  125 max_per_ip=2 每ip最大并发
  126 local_max_rate=100000 限制下载速度
  5、白名单配置
  tail -1 /etc/vsftpd/user_list
  test
  6、添加FTP用户、用户组及相关权限
  # groupadd test
  添加test用户组,用来承载我们的FTP授权用户。
  # useradd -g test -M -d /usr/local/nginx/html/test -s /sbin/nologin test
  使用-g参数将它归集到test用户组下,-M参数不设置它的主目录(没有-M参数/home里会有个test文件夹,这个文件夹没多少实际用处,所以不用设置),-d参数设定它的初始登入目录为/usr/local/nginx/html/test,-s参数设定它不需要登陆系统/sbin/nologin。
  7、修改FTP用户密码及目录权限
  passwd test
  chown –R /usr/local/nginx/html/test
  8、重启
  service vsftpd restart
  9、访问测试
  ftp://test:123456@192.168.1.1
  二、Nginx+lua_Nginx+GraphicsMagick来实现实时缩略图
  安装libpng
  wget http://www.imagemagick.org/download/delegates/libpng-1.6.2.tar.gz
  tar xf libpng-1.6.21.tar.gz -C /usr/local/
  ./configure
  make && make install
  ln -s /usr/local/libpng-1.6.21/.libs/libpng16.so.16 /lib64/libpng16.so.16
  安装jpeg-9a
  wget http://www.imagemagick.org/download/delegates/jpegsrc.v9a.tar.gz
  tar xf jpegsrc.v9a.tar.gz -C /usr/local/
  ./configure
  make && make install
  ln -s /usr/local/jpeg-9a/.libs/libjpeg.so.9 /lib64/libjpeg.so.9
  1、安装GraphicsMagick
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  wget http://sourceforge.net/projects/graphicsmagick/files/graphicsmagick/1.3.20/GraphicsMagick-1.3.20.tar.gz/download
  tar -zxvfGraphicsMagick-1.3.20.tar.gz
  cd GraphicsMagick-1.3.20
  ./configure --prefix=/usr/local/GraphicsMagick
  make && make install
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  2、下载luajit
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  a.下载
  wget http://luajit.org/download/LuaJIT-2.0.4.tar.gz
  b.解压
  tar -zxvf LuaJIT-2.0.4.tar.gz
  c.进入解压目录
  cd LuaJIT-2.0.4
  d.安装
  make
  make install
  e.建立软连接
  ln -s /usr/local/lib/libluajit-5.1.so.2 /lib64/libluajit-5.1.so.2
  f.测试 luajit
  退出编辑 :Ctrl + D 保存退出
  安装 lua
  1.首先确认是否安装 readline
  rpm -qa|grep -i readline
  yum安装readline
  yum -y install readline-devel ncurses-devel
  2.安装lua
  2.1 lua安装
  a.下载lua
  wget http://www.lua.org/ftp/lua-5.3.1.tar.gz
  b.解压lua-5.3.1.tar.gz
  tar zxvf lua-5.3.1.tar.gz
  c.进入解压目录
  cd lua-5.3.1
  d.安装
  make linux && makeinstall
  或
  make linux
  make install
  e。测试
  lua命令:
  在编辑模式中输入:
  print('Hi,this ismy first lua program!')
  回车
  问题:error while loading shared libraries: xxx.so.0:cannot open shared object file: No such file or directory
  出现这类错误表示,系统不知道xxx.so放在哪个目录下,这时候就要在/etc/ld.so.conf中加入xxx.so所在的目录。
  一般而言,有很多的so会存放在/usr/local/lib这个目录底下,去这个目录底下找,果然发现自己所需要的.so文件。
  所以,在/etc/ld.so.conf中加入/usr/local/lib这一行,保存之后,再运行:/sbin/ldconfig –v更新一下配置即可。
  cd /usr/src
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  3、下载ngx_devel_kit 模块
  wget https://github.com/simpl/ngx_devel_kit/archive/master.zip
  unzip master.zip
  4、下载 lua-nginx-module 模块
  https://github.com/openresty/lua-nginx-module/archive/master.zip
  unzip master.zip
  5、下载echo
  https://github.com/agentzh/echo-nginx-module/zipball/master
  unzip echo-nginx-module.zip
  6、下载cache
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  wget http://labs.frickle.com/files/ngx_cache_purge-2.1.tar.gz
  tar -zxvf ngx_cache_purge-2.1.tar.gz
  cd ngx_cache_purge-2.1
  ...
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  7、下载nginx
  wget http://nginx.org/download/nginx-1.7.5.tar.gz
  ...
  8、设置环境变量
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  export LUAJIT_LIB=/usr/local/lj2/lib
  export LUAJIT_INC=/usr/local/include/luajit-2.0/
  export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH
  exportPKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH
  GM_HOME=/usr/local/GraphicsMagick;
  PATH=$GM_HOME/bin:$PATH;
  export PATH
  export GM_HOME
  source /etc/profile
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  9、nginx 编译安装
  ./configure --prefix=/usr/local/nginx --with-http_stub_status_module --add-module=/usr/local/src/ngx_devel_kit-master --with-ld-opt=-Wl,-rpath,/usr/local/lib --add-module=/usr/local/src/ngx_cache_purge-2.3 --with-http_perl_module --add-module=/usr/local/src/echo-nginx-module --add-module=/usr/local/src/lua-nginx-module-master --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --pid-path=/var/run/nginx/nginx.pid --user=nginx --group=nginx --with-http_ssl_module--with-http_flv_module --with-http_gzip_static_module --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/tmp/nginx/client --http-proxy-temp-path=/var/tmp/nginx/proxy --http-fastcgi-temp-path=/var/tmp/nginx/fcgi --with-http_stub_status_module
  make && make install
  注意:安装的时候出错找不到perl。
  yum -y install perl-devel perl-ExtUtils-Embed
  10、nginx配置
  11、虚拟目录vhost
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  server {
  listen 80;
  server_name image.host.com;
  root /usr/local/nginx/html/test;
  index index.html index.htm index.php;
  location /lua1 {
  default_type 'text/plain';
  content_by_lua 'ngx.say("hello, lua")';
  }
  location/image {
  set $image_root /usr/local/nginx/html/test;
  set $file "$image_root$uri";
  if (!-f $file) {
  rewrite_by_lua '                              local index = string.find(ngx.var.uri, "(+)x(+)");
  if (index == nil) then
  ngx.exit(404);end;
  local originalUri = string.sub(ngx.var.uri, 0, index-2);
  local area = string.sub(ngx.var.uri, index);
  index = string.find(area, "([.])");
  area = string.sub(area, 0, index-1);
  local image_sizes = {"160x160","400x300"};
  local image_big = {"80x60^", "120x90^", "160x120^"};
  function table.contains(table, element)
  for _, value in pairs(table) do
  if value == element then
  return true
  end
  end
  return false
  end
  if table.contains(image_big, area) then
  local command = "/usr/local/GraphicsMagick/bin/gm convert " .. ngx.var.image_root ..originalUri.. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.image_root .. ngx.var.uri
  os.execute(command);
  else
  if table.contains(image_sizes, area) then
  local command = "/usr/local/GraphicsMagick/bin/gm convert " .. ngx.var.image_root ..originalUri.. " -thumbnail ".. area .. " " .. ngx.var.image_root .. ngx.var.uri;
  os.execute(command);
  else
  ngx.exit(404);
  end;
  end;
  ';          }
  # alias /usr/local/nginx/html/test/image;
  expires 7d;
  }
  }
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  12、赋予权限
  chmod o+w /usr/local/nginx/html/test/image
  13、访问
  原地址:http://image.host.com/image/2.jpg
  缩略图地址:http://image.host.com/image/2.jpg.400x300.jpg
  14、参考文档
  http://www.cnblogs.com/kezf/p/lua_nginx.html

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