1 files changed, 69 insertions, 5 deletions
diff --git a/src/xhr/xmlhttprequest.nim b/src/xhr/xmlhttprequest.nim
index ef0e6601..28fbd50a 100644
--- a/src/xhr/xmlhttprequest.nim
+++ b/src/xhr/xmlhttprequest.nim
@@ -1,5 +1,13 @@
+import std/options
+import std/strutils
+
 import html/event
+import js/domexception
 import js/javascript
+import loader/headers
+import loader/request
+import loader/response
+import types/url
 
 type
   XMLHttpRequestResponseType = enum
@@ -10,6 +18,16 @@ type
     TYPE_JSON = "json"
     TYPE_TEXT = "text"
 
+  XMLHttpRequestState = enum
+    UNSENT = 0u16
+    OPENED = 1u16
+    HEADERS_RECEIVED = 2u16
+    LOADING = 3u16
+    DONE = 4u16
+
+  XMLHttpRequestFlag = enum
+    SEND_FLAG, UPLOAD_LISTENER_FLAG, SYNC_FLAG
+
   XMLHttpRequestEventTarget = ref object of EventTarget
     onloadstart {.jsgetset.}: EventHandler
     onprogress {.jsgetset.}: EventHandler
@@ -23,8 +41,14 @@ type
 
   XMLHttpRequest = ref object of XMLHttpRequestEventTarget
     onreadystatechange {.jsgetset.}: EventHandler
-    readyState {.jsget.}: uint16
+    readyState: XMLHttpRequestState
     upload {.jsget.}: XMLHttpRequestUpload
+    flags: set[XMLHttpRequestFlag]
+    requestMethod: HttpMethod
+    requestURL: URL
+    authorRequestHeaders: Headers
+    response: Response
+    responseType {.jsget.}: XMLHttpRequestResponseType
 
 jsDestructor(XMLHttpRequestEventTarget)
 jsDestructor(XMLHttpRequestUpload)
@@ -33,14 +57,54 @@ jsDestructor(XMLHttpRequest)
 func newXMLHttpRequest(): XMLHttpRequest {.jsctor.} =
   let upload = XMLHttpRequestUpload()
   return XMLHttpRequest(
-    upload: upload
+    upload: upload,
+    authorRequestHeaders: newHeaders()
   )
 
-proc open(this: XMLHttpRequest, httpMethod, url: string) {.jsfunc.} =
-  discard #TODO implement
+func readyState(this: XMLHttpRequest): uint16 {.jsfget.} =
+  return uint16(this.readyState)
+
+proc parseMethod(s: string): DOMResult[HttpMethod] =
+  return case s.toLowerAscii()
+  of "get": ok(HTTP_GET)
+  of "delete": ok(HTTP_DELETE)
+  of "head": ok(HTTP_HEAD)
+  of "options": ok(HTTP_OPTIONS)
+  of "patch": ok(HTTP_PATCH)
+  of "post": ok(HTTP_POST)
+  of "put": ok(HTTP_PUT)
+  of "connect", "trace", "track":
+    err(newDOMException("Forbidden method", "SecurityError"))
+  else:
+    err(newDOMException("Invalid method", "SyntaxError"))
+
+proc open(this: XMLHttpRequest, httpMethod, url: string): Err[DOMException]
+    {.jsfunc.} =
+  let httpMethod = ?parseMethod(httpMethod)
+  let x = parseURL(url)
+  if x.isNone:
+    return err(newDOMException("Invalid URL", "SyntaxError"))
+  let parsedURL = x.get
+  #TODO async, username, password arguments
+  let async = true
+  #TODO if async is false... probably just throw.
+  #TODO terminate fetch controller
+  this.flags.excl(SEND_FLAG)
+  this.flags.excl(UPLOAD_LISTENER_FLAG)
+  #TODO set if not async
+  if async:
+    this.flags.excl(SYNC_FLAG)
+  else:
+    this.flags.incl(SYNC_FLAG)
+  this.requestMethod = httpMethod
+  this.authorRequestHeaders = newHeaders()
+  this.response = makeNetworkError()
+  this.requestURL = parsedURL
+  return ok()
 
 proc addXMLHttpRequestModule*(ctx: JSContext) =
   let eventTargetCID = ctx.getClass("EventTarget")
   let xhretCID = ctx.registerType(XMLHttpRequestEventTarget, eventTargetCID)
   ctx.registerType(XMLHttpRequestUpload, xhretCID)
-  ctx.registerType(XMLHttpRequest, xhretCID)
+  let xhrCID = ctx.registerType(XMLHttpRequest, xhretCID)
+  ctx.defineConsts(xhrCID, XMLHttpRequestState, uint16)