// Create a new connection to the membership database on the given "host".
// Will set the keyspace to "dbname".
func NewMembershipDB(host, dbname string, timeout time.Duration) (*MembershipDB, error) {
var conn *cassandra.RetryCassandraClient
var err error
conn, err = cassandra.NewRetryCassandraClientTimeout(host, timeout)
if err != nil {
return nil, err
}
err = conn.SetKeyspace(dbname)
if err != nil {
return nil, err
}
return &MembershipDB{
conn: conn,
}, nil
}
func main() {
var help bool
var bindto, template_dir string
var lockserv, lockboot, servicename string
var ca, pub, priv, authserver string
var requested_scope string
var dbserver, keyspace string
var searchif_tmpl *template.Template
var permission_denied_tmpl *template.Template
var exporter *exportedservice.ServiceExporter
var authenticator *ancientauth.Authenticator
var client *cassandra.RetryCassandraClient
var ire *cassandra.InvalidRequestException
var err error
flag.BoolVar(&help, "help", false, "Display help")
flag.StringVar(&bindto, "bind", "[::1]:8080",
"The address to bind the web server to")
flag.StringVar(&lockserv, "lockserver-uri",
os.Getenv("DOOZER_URI"),
"URI of a Doozer cluster to connect to")
flag.StringVar(&ca, "cacert", "cacert.pem",
"Path to the X.509 certificate of the certificate authority")
flag.StringVar(&pub, "cert", "starstock.pem",
"Path to the X.509 certificate")
flag.StringVar(&priv, "key", "starstock.key",
"Path to the X.509 private key file")
flag.StringVar(&authserver, "auth-server",
"login.ancient-solutions.com",
"The server to send the user to")
flag.StringVar(&template_dir, "template-dir", "",
"Path to the directory with the HTML templates")
flag.StringVar(&lockboot, "lockserver-boot-uri",
os.Getenv("DOOZER_BOOT_URI"),
"Boot URI to resolve the Doozer cluster name (if required)")
flag.StringVar(&servicename, "service-name",
"", "Service name to publish as to the lock server")
flag.StringVar(&requested_scope, "scope",
"staff", "People need to be in this scope to use the application")
flag.StringVar(&dbserver, "cassandra-server", "localhost:9160",
"Cassandra database server to use")
flag.StringVar(&keyspace, "keyspace", "starstock",
"Cassandra keyspace to use for accessing stock data")
flag.Parse()
if help {
flag.Usage()
os.Exit(1)
}
if len(template_dir) <= 0 {
log.Fatal("The --template-dir flag must not be empty")
}
// Load and parse the HTML templates to be displayed.
searchif_tmpl, err = template.ParseFiles(template_dir + "/search.tmpl")
if err != nil {
log.Fatal("Unable to parse search template: ", err)
}
// Load and parse the HTML templates to be displayed.
permission_denied_tmpl, err = template.ParseFiles(template_dir +
"/permission_denied.tmpl")
if err != nil {
log.Fatal("Unable to parse form template: ", err)
}
// Create the AncientAuth client
authenticator, err = ancientauth.NewAuthenticator("StarStock", pub,
priv, ca, authserver)
if err != nil {
log.Fatal("NewAuthenticator: ", err)
}
// Connect to the Cassandra server.
client, err = cassandra.NewRetryCassandraClientTimeout(dbserver,
10*time.Second)
if err != nil {
log.Fatal("Error opening connection to ", dbserver, ": ", err)
}
ire, err = client.SetKeyspace(keyspace)
if ire != nil {
log.Fatal("Error setting keyspace to ", keyspace, ": ", ire.Why)
}
if err != nil {
log.Fatal("Error setting keyspace to ", keyspace, ": ", err)
}
// Register the URL handler to be invoked.
http.Handle("/css/", http.FileServer(http.Dir(template_dir)))
http.Handle("/js/", http.FileServer(http.Dir(template_dir)))
http.Handle("/api/product", &ProductViewAPI{
authenticator: authenticator,
client: client,
scope: requested_scope,
})
http.Handle("/api/edit-product", &ProductEditAPI{
authenticator: authenticator,
client: client,
scope: requested_scope,
})
http.Handle("/api/products", &ProductSearchAPI{
authenticator: authenticator,
client: client,
scope: requested_scope,
})
http.Handle("/", &ProductSearchForm{
authenticator: authenticator,
scope: requested_scope,
searchifTmpl: searchif_tmpl,
permissionDeniedTmpl: permission_denied_tmpl,
})
// If a lock server was specified, attempt to use an anonymous port as
// a Doozer exported HTTP service. Otherwise, just bind to the address
// given in bindto, for debugging etc.
if len(lockserv) > 0 {
exporter, err = exportedservice.NewExporter(lockserv, lockboot)
if err != nil {
log.Fatal("doozer.DialUri ", lockserv, " (",
lockboot, "): ", err)
}
defer exporter.UnexportPort()
err = exporter.ListenAndServeNamedHTTP(servicename, bindto, nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
} else {
err = http.ListenAndServe(bindto, nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
}
}