func (config *Config) InstallHandlers(hi HandlerInstaller, baseURL string) (outerr os.Error) {
defer func() {
err := recover()
if err == nil {
return
}
outerr = fmt.Errorf("%v", err)
}()
auth.AccessPassword = config.OptionalString("password", "")
if url := config.OptionalString("baseURL", ""); url != "" {
baseURL = url
}
prefixes := config.RequiredObject("prefixes")
if err := config.Validate(); err != nil {
return fmt.Errorf("configuration error in root object's keys: %v", err)
}
hl := &handlerLoader{
installer: hi,
baseURL: baseURL,
config: make(map[string]*handlerConfig),
handler: make(map[string]interface{}),
}
for prefix, vei := range prefixes {
if !strings.HasPrefix(prefix, "/") {
exitFailure("prefix %q doesn't start with /", prefix)
}
if !strings.HasSuffix(prefix, "/") {
exitFailure("prefix %q doesn't end with /", prefix)
}
pmap, ok := vei.(map[string]interface{})
if !ok {
exitFailure("prefix %q value is a %T, not an object", prefix, vei)
}
pconf := jsonconfig.Obj(pmap)
enabled := pconf.OptionalBool("enabled", true)
if !enabled {
continue
}
handlerType := pconf.RequiredString("handler")
handlerArgs := pconf.OptionalObject("handlerArgs")
if err := pconf.Validate(); err != nil {
exitFailure("configuration error in prefix %s: %v", prefix, err)
}
h := &handlerConfig{
prefix: prefix,
htype: handlerType,
conf: handlerArgs,
}
hl.config[prefix] = h
if handlerType == "ui" {
config.UIPath = prefix
}
}
hl.setupAll()
return nil
}
func buildStorageForReceive(ld blobserver.Loader, confOrString interface{}) (storageFunc, os.Error) {
// Static configuration from a string
if s, ok := confOrString.(string); ok {
sto, err := ld.GetStorage(s)
if err != nil {
return nil, err
}
f := func(io.Reader) (blobserver.Storage, []byte, os.Error) {
return sto, nil, nil
}
return f, nil
}
conf := jsonconfig.Obj(confOrString.(map[string]interface{}))
ifStr := conf.RequiredString("if")
// TODO: let 'then' and 'else' point to not just strings but either
// a string or a JSON object with another condition, and then
// call buildStorageForReceive on it recursively
thenTarget := conf.RequiredString("then")
elseTarget := conf.RequiredString("else")
if err := conf.Validate(); err != nil {
return nil, err
}
thenSto, err := ld.GetStorage(thenTarget)
if err != nil {
return nil, err
}
elseSto, err := ld.GetStorage(elseTarget)
if err != nil {
return nil, err
}
switch ifStr {
case "isSchema":
return isSchemaPicker(thenSto, elseSto), nil
}
return nil, fmt.Errorf("cond: unsupported 'if' type of %q", ifStr)
}
func main() {
flag.Parse()
configPath := *flagConfigFile
if !filepath.IsAbs(configPath) {
configPath = filepath.Join(osutil.CamliConfigDir(), configPath)
}
f, err := os.Open(configPath)
if err != nil {
exitFailure("error opening %s: %v", configPath, err)
}
defer f.Close()
dj := json.NewDecoder(f)
rootjson := make(map[string]interface{})
if err = dj.Decode(&rootjson); err != nil {
extra := ""
if serr, ok := err.(*json.SyntaxError); ok {
if _, serr := f.Seek(0, os.SEEK_SET); serr != nil {
log.Fatalf("seek error: %v", serr)
}
line, col, highlight := errorutil.HighlightBytePosition(f, serr.Offset)
extra = fmt.Sprintf(":\nError at line %d, column %d (file offset %d):\n%s",
line, col, serr.Offset, highlight)
}
exitFailure("error parsing JSON object in config file %s%s\n%v",
osutil.UserServerConfigPath(), extra, err)
}
if err := jsonconfig.EvaluateExpressions(rootjson); err != nil {
exitFailure("error expanding JSON config expressions in %s: %v", configPath, err)
}
ws := webserver.New()
baseURL := ws.BaseURL()
// Root configuration
config := jsonconfig.Obj(rootjson)
{
cert, key := config.OptionalString("TLSCertFile", ""), config.OptionalString("TLSKeyFile", "")
if (cert != "") != (key != "") {
exitFailure("TLSCertFile and TLSKeyFile must both be either present or absent")
}
if cert != "" {
ws.SetTLS(cert, key)
}
}
auth.AccessPassword = config.OptionalString("password", "")
if url := config.OptionalString("baseURL", ""); url != "" {
baseURL = url
}
prefixes := config.RequiredObject("prefixes")
if err := config.Validate(); err != nil {
exitFailure("configuration error in root object's keys in %s: %v", configPath, err)
}
hl := &handlerLoader{
ws: ws,
baseURL: baseURL,
config: make(map[string]*handlerConfig),
handler: make(map[string]interface{}),
}
for prefix, vei := range prefixes {
if !strings.HasPrefix(prefix, "/") {
exitFailure("prefix %q doesn't start with /", prefix)
}
if !strings.HasSuffix(prefix, "/") {
exitFailure("prefix %q doesn't end with /", prefix)
}
pmap, ok := vei.(map[string]interface{})
if !ok {
exitFailure("prefix %q value isn't an object", prefix)
}
pconf := jsonconfig.Obj(pmap)
handlerType := pconf.RequiredString("handler")
handlerArgs := pconf.OptionalObject("handlerArgs")
if err := pconf.Validate(); err != nil {
exitFailure("configuration error in prefix %s: %v", prefix, err)
}
h := &handlerConfig{
prefix: prefix,
htype: handlerType,
conf: handlerArgs,
}
hl.config[prefix] = h
}
hl.setupAll()
ws.Serve()
}