github.com/imgk/caddy-trojan@v0.0.0-20221206043256-2631719e16c8/app/caddyfile.go (about)

     1  package app
     2  
     3  import (
     4  	"github.com/caddyserver/caddy/v2/caddyconfig"
     5  	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
     6  	"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
     7  )
     8  
     9  func init() {
    10  	httpcaddyfile.RegisterGlobalOption("trojan", parseCaddyfile)
    11  }
    12  
    13  /*
    14  trojan {
    15  	caddy
    16  	no_proxy | env_proxy
    17  	users pass1234 word5678
    18  }
    19  */
    20  func parseCaddyfile(d *caddyfile.Dispenser, _ interface{}) (interface{}, error) {
    21  	app := &App{
    22  		UpstreamRaw: nil,
    23  		ProxyRaw:    nil,
    24  		Users:       []string{},
    25  	}
    26  
    27  	for d.Next() {
    28  		for d.NextBlock(0) {
    29  			switch d.Val() {
    30  			case "caddy":
    31  				if app.UpstreamRaw != nil {
    32  					return nil, d.Err("only one upstream is allowed")
    33  				}
    34  				app.UpstreamRaw = caddyconfig.JSONModuleObject(new(CaddyUpstream), "upstream", "caddy", nil)
    35  			case "memory":
    36  				if app.UpstreamRaw != nil {
    37  					return nil, d.Err("only one upstream is allowed")
    38  				}
    39  				app.UpstreamRaw = caddyconfig.JSONModuleObject(new(MemoryUpstream), "upstream", "memory", nil)
    40  			case "env_proxy":
    41  				if app.ProxyRaw != nil {
    42  					return nil, d.Err("only one proxy is allowed")
    43  				}
    44  				app.ProxyRaw = caddyconfig.JSONModuleObject(new(EnvProxy), "proxy", "env_proxy", nil)
    45  			case "no_proxy":
    46  				if app.ProxyRaw != nil {
    47  					return nil, d.Err("only one proxy is allowed")
    48  				}
    49  				app.ProxyRaw = caddyconfig.JSONModuleObject(new(NoProxy), "proxy", "no_proxy", nil)
    50  			case "users":
    51  				args := d.RemainingArgs()
    52  				if len(args) < 1 {
    53  					return nil, d.ArgErr()
    54  				}
    55  				for _, v := range args {
    56  					if len(v) == 0 {
    57  						return nil, d.Err("empty user is not allowed")
    58  					}
    59  					app.Users = append(app.Users, v)
    60  				}
    61  			}
    62  
    63  		}
    64  	}
    65  
    66  	return httpcaddyfile.App{
    67  		Name:  "trojan",
    68  		Value: caddyconfig.JSON(app, nil),
    69  	}, nil
    70  }