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uri.go
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uri.go
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package vm
import (
"net/url"
"strconv"
"github.com/goby-lang/goby/vm/errors"
)
// Class methods --------------------------------------------------------
func builtinURIClassMethods() []*BuiltinMethodObject {
return []*BuiltinMethodObject{
{
// Returns a Net::HTTP or Net::HTTPS's instance (depends on the url scheme).
//
// ```ruby
// u = URI.parse("https://example.com")
// u.scheme # => "https"
// u.host # => "example.com"
// u.port # => 80
// u.path # => "/"
// ```
Name: "parse",
Fn: func(receiver Object, sourceLine int, t *Thread, args []Object, blockFrame *normalCallFrame) Object {
uri := args[0].(*StringObject).value
uriModule := t.vm.topLevelClass("URI")
u, err := url.Parse(uri)
if err != nil {
return t.vm.InitErrorObject(errors.InternalError, sourceLine, err.Error())
}
uriAttrs := map[string]Object{
"@user": NULL,
"@password": NULL,
"@query": NULL,
"@path": t.vm.InitStringObject("/"),
}
// Scheme
uriAttrs["@scheme"] = t.vm.InitStringObject(u.Scheme)
// Host
uriAttrs["@host"] = t.vm.InitStringObject(u.Host)
// Port
if len(u.Port()) == 0 {
switch u.Scheme {
case "http":
uriAttrs["@port"] = t.vm.InitIntegerObject(80)
case "https":
uriAttrs["@port"] = t.vm.InitIntegerObject(443)
}
} else {
p, err := strconv.ParseInt(u.Port(), 0, 64)
if err != nil {
return t.vm.InitErrorObject(errors.InternalError, sourceLine, err.Error())
}
uriAttrs["@port"] = t.vm.InitIntegerObject(int(p))
}
// Path
if len(u.Path) != 0 {
uriAttrs["@path"] = t.vm.InitStringObject(u.Path)
}
// Query
if len(u.RawQuery) != 0 {
uriAttrs["@query"] = t.vm.InitStringObject(u.RawQuery)
}
// User
if u.User != nil {
if len(u.User.Username()) != 0 {
uriAttrs["@user"] = t.vm.InitStringObject(u.User.Username())
}
if p, ok := u.User.Password(); ok {
uriAttrs["@password"] = t.vm.InitStringObject(p)
}
}
var c *RClass
if u.Scheme == "https" {
c = uriModule.getClassConstant("HTTPS")
} else {
c = uriModule.getClassConstant("HTTP")
}
i := c.initializeInstance()
for varName, value := range uriAttrs {
i.InstanceVariables.set(varName, value)
}
return i
},
},
}
}
// Internal functions ===================================================
// Functions for initialization -----------------------------------------
func initURIClass(vm *VM) {
uri := vm.initializeModule("URI")
http := vm.initializeClass("HTTP")
https := vm.initializeClass("HTTPS")
https.superClass = http
https.pseudoSuperClass = http
uri.setClassConstant(http)
uri.setClassConstant(https)
uri.setBuiltinMethods(builtinURIClassMethods(), true)
attrs := []Object{
vm.InitStringObject("host"),
vm.InitStringObject("path"),
vm.InitStringObject("port"),
vm.InitStringObject("query"),
vm.InitStringObject("scheme"),
vm.InitStringObject("user"),
vm.InitStringObject("password"),
}
http.setAttrReader(attrs)
http.setAttrWriter(attrs)
vm.objectClass.setClassConstant(uri)
}