使用nginx+Lua+GraphicsMagick实现图片自动裁剪
http {include mime.types;
default_typeapplication/octet-stream;
log_formatmain'$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_loglogs/access.logmain;
sendfile on;
tcp_nopush on;
keepalive_timeout65;
gzipon;
server {
listen 80;
server_name192.168.1.19;
root /static/image;
location /lua1 {
default_type 'text/plain';
content_by_lua 'ngx.say("hello, lua")';
}
set $upload_path /static/image;
set $img_original_root$upload_path;# original root;
set $img_thumbnail_root $upload_path/cache/thumb;
set $img_file $img_thumbnail_root$uri;
# like：/xx/xx/xx.jpg_100-.jpg or /xx/xx/xx.jpg_-100.jpg
location ~* ^(.+\.(jpg|jpeg|gif|png))_((\d+\-)|(\-\d+))\.(jpg|jpeg|gif|png)$ {
root $img_thumbnail_root; # root path for croped img
set $img_size $3;
if (!-f $img_file) { # if file not exists
add_header X-Powered-By 'Nginx+Lua+GraphicsMagick By Yanue';#header for test
add_header file-path $request_filename; #header for test
set $request_filepath $img_original_root$1; # origin_img full path：/document_root/1.gif
set $img_size $3; # img width or height size depends on uri
set $img_ext $2; # file ext
content_by_lua_file lua/autoSize.lua; # load lua
}
}
# like: /xx/xx/xx.jpg_100x100.jpg
location ~* ^(.+\.(jpg|jpeg|gif|png))_(\d+)+x(\d+)+\.(jpg|jpeg|gif|png)$ {
root $img_thumbnail_root; # root path for croped img
if (!-f $img_file) { # if file not exists
add_header X-Powered-By 'Nginx+Lua+GraphicsMagick By Yanue';#header for test
add_header file-path $request_filename; #header for test
set $request_filepath $img_original_root$1; # origin_img file path
set $img_width $3; # img width
set $img_height $4; # height
set $img_ext $5; # file ext
content_by_lua_file lua/cropSize.lua; # load lua
}
}
}
}
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