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https://github.com/vimagick/dockerfiles
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151 lines
3.5 KiB
Markdown
151 lines
3.5 KiB
Markdown
splash
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======
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[Splash][1] is a javascript rendering service with an HTTP API. It's a
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lightweight browser with an HTTP API, implemented in Python using Twisted and
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QT.
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It's fast, lightweight and state-less which makes it easy to distribute.
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## docker-compose.yml
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```yaml
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version: '3.8'
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services:
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splash:
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image: scrapinghub/splash:3.5.0
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command: --maxrss 2048 --max-timeout 300 --disable-lua-sandbox --verbosity 1
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ports:
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- "8050:8050"
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volumes:
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- ./data/filters:/etc/splash/filters
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- ./data/js-profiles:/etc/splash/js-profiles
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- ./data/lua_modules:/etc/splash/lua_modules
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- ./data/proxy-profiles:/etc/splash/proxy-profiles
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restart: unless-stopped
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```
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## server
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File: data/filters/default.txt
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```
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||fonts.googleapis.com^
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||ajax.googleapis.com^
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```
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```bash
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$ cd ~/fig/splash
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$ tree
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.
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├── docker-compose.yml
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└── data
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├── filters
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│ ├── easylist.txt
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│ └── default.txt
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├── js-profiles
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├── lua_modules
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│ └── utils.lua
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└── proxy-profiles
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$ docker-compose up -d
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$ docker-compose ps
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Name Command State Ports
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----------------------------------------------------------------------------------
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splash_splash_1 python3 /app/bin/splash -- ... Up 8050/tcp
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```
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> If `default.txt` file is present in `--filters-path` folder it is used by default
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> when filters argument is not specified. Pass `filters=none` if you don’t want
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> default filters to be applied.
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## client
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```lua
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-- http-proxy.lua
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function main(splash, args)
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splash:on_request(function(request)
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request:set_proxy{
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host = "61.91.251.235",
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port = 8080,
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}
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end)
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assert(splash:go("http://ifconfig.co"))
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assert(splash:wait(0.5))
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return splash:png()
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end
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```
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```lua
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-- baidu-search.lua
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function main(splash)
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splash:go('https://www.baidu.com/')
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splash:wait(1)
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splash:select('#kw'):send_text('google')
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splash:wait(1)
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splash:select('#su'):click()
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splash:wait(1)
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splash:evaljs([[
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$('#content_left').css('padding', '0');
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]])
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splash:set_viewport_full()
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splash:wait(1)
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return splash:select('#content_left'):png()
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end
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```
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```lua
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-- youtube-logo.lua
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function main(splash)
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splash:go('https://www.youtube.com/')
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splash:wait(0.5)
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local logo = splash:select('.logo')
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return logo:png()
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end
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```
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```lua
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-- crop.lua
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function main(splash)
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local url = splash.args.url
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local css1 = splash.args.css1
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local css2 = splash.args.css2
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assert(splash:go(url))
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splash:set_viewport_full()
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local box1 = splash:select(css1):bounds()
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local box2 = splash:select(css2):bounds()
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return splash:png{
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region={
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math.min(box1.left, box2.left),
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math.min(box1.top, box2.top),
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math.max(box1.right, box2.right),
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math.max(box1.bottom, box2.bottom),
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}
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}
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end
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```
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View more [examples][2].
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```bash
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# whole page
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$ http http://server:8050/render.png url==https://www.youtube.com/ > youtube.png
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# only logo
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$ http http://server:8050/execute lua_source=@youtube-logo.lua > youtube-logo.png
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# only form
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$ http http://server:8050/execute lua_source=@crop.lua \
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url=https://www.facebook.com/ \
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css1='#u_0_1' \
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css2='#u_0_b' > facebook-form.png
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```
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[1]: http://splash.readthedocs.org/en/latest/
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[2]: https://github.com/scrapinghub/splash/tree/master/splash/examples
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