Early prototype; initial commit

Author: mholt

.gitignore

@@ -0,0 +1,7 @@
+.DS_Store
+Thumbs.db
+_gitignore/
+error.log
+access.log
+/*.conf
+Caddyfile

config/config.go

@@ -0,0 +1,190 @@
+// Package config contains utilities and types necessary for
+// launching specially-configured server instances.
+package config
+
+import "os"
+
+// Load loads a configuration file, parses it,
+// and returns a slice of Config structs which
+// can be used to create and configure server
+// instances.
+func Load(filename string) ([]Config, error) {
+	p := parser{}
+	err := p.lexer.Load(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer p.lexer.Close()
+	return p.Parse()
+}
+
+// IsNotFound returns whether or not the error is
+// one which indicates that the configuration file
+// was not found. (Useful for checking the error
+// returned from Load).
+func IsNotFound(err error) bool {
+	return os.IsNotExist(err)
+}
+
+// Default makes a default configuration
+// that's empty except for root, host, and port,
+// which are essential for serving the cwd.
+func Default() []Config {
+	cfg := []Config{
+		Config{
+			Root: defaultRoot,
+			Host: defaultHost,
+			Port: defaultPort,
+		},
+	}
+	return cfg
+}
+
+// config represents a server configuration. It
+// is populated by parsing a config file. (Use
+// the Load function.)
+type Config struct {
+	Host       string
+	Port       string
+	Root       string
+	Gzip       bool
+	RequestLog Log
+	ErrorLog   Log
+	Rewrites   []Rewrite
+	Redirects  []Redirect
+	Extensions []string
+	ErrorPages map[int]string // Map of HTTP status code to filename
+	Headers    []Headers
+	TLS        TLSConfig
+}
+
+// Address returns the host:port of c as a string.
+func (c Config) Address() string {
+	return c.Host + ":" + c.Port
+}
+
+// Rewrite describes an internal location rewrite.
+type Rewrite struct {
+	From string
+	To   string
+}
+
+// Redirect describes an HTTP redirect.
+type Redirect struct {
+	From string
+	To   string
+	Code int
+}
+
+// Log represents the settings for a log.
+type Log struct {
+	Enabled    bool
+	OutputFile string
+	Format     string
+}
+
+// Headers groups a slice of HTTP headers by a URL pattern.
+type Headers struct {
+	Url     string
+	Headers []Header
+}
+
+// Header represents a single HTTP header, simply a name and value.
+type Header struct {
+	Name  string
+	Value string
+}
+
+// TLSConfig describes how TLS should be configured and used,
+// if at all. At least a certificate and key are required.
+type TLSConfig struct {
+	Enabled     bool
+	Certificate string
+	Key         string
+}
+
+// httpRedirs is a list of supported HTTP redirect codes.
+var httpRedirs = map[string]int{
+	"300": 300,
+	"301": 301,
+	"302": 302,
+	"303": 303,
+	"304": 304,
+	"305": 305,
+	"306": 306,
+	"307": 307,
+	"308": 308,
+}
+
+// httpErrors is a list of supported HTTP error codes.
+var httpErrors = map[string]int{
+	"400": 400,
+	"401": 401,
+	"402": 402,
+	"403": 403,
+	"404": 404,
+	"405": 405,
+	"406": 406,
+	"407": 407,
+	"408": 408,
+	"409": 409,
+	"410": 410,
+	"411": 411,
+	"412": 412,
+	"413": 413,
+	"414": 414,
+	"415": 415,
+	"416": 416,
+	"417": 417,
+	"418": 418,
+	"419": 419,
+	"420": 420,
+	"422": 422,
+	"423": 423,
+	"424": 424,
+	"426": 426,
+	"428": 428,
+	"429": 429,
+	"431": 431,
+	"440": 440,
+	"444": 444,
+	"449": 449,
+	"450": 450,
+	"451": 451,
+	"494": 494,
+	"495": 495,
+	"496": 496,
+	"497": 497,
+	"498": 498,
+	"499": 499,
+	"500": 500,
+	"501": 501,
+	"502": 502,
+	"503": 503,
+	"504": 504,
+	"505": 505,
+	"506": 506,
+	"507": 507,
+	"508": 508,
+	"509": 509,
+	"510": 510,
+	"511": 511,
+	"520": 520,
+	"521": 521,
+	"522": 522,
+	"523": 523,
+	"524": 524,
+	"598": 598,
+	"599": 599,
+}
+
+const (
+	defaultHost = "localhost"
+	defaultPort = "8080"
+	defaultRoot = "."
+)
+
+const (
+	DefaultRequestsLog = "requests.log"
+	DefaultErrorsLog   = "errors.log"
+)