internal static IHttpObservable Submit <T>(IHttpClient http,
ParsedHtml html,
string formSelector, int?formIndex, Uri actionUrl,
Func <HtmlForm, ISubmissionData <T> > submissions)
{
var forms =
from f in formIndex == null
? html.QueryFormSelectorAll(formSelector)
: formIndex < html.Forms.Count
? Enumerable.Repeat(html.Forms[(int)formIndex], 1)
: Enumerable.Empty <HtmlForm>()
select new
{
Object = f,
Action = new Uri(html.TryBaseHref(f.Action), UriKind.Absolute),
// f.EncType, // TODO validate
Data = f.GetSubmissionData(),
};
var form = forms.FirstOrDefault();
if (form == null)
{
throw new Exception("No HTML form for submit.");
}
submissions(form.Object).Run(form.Data);
return(form.Object.Method == HtmlFormMethod.Post
? http.Post(actionUrl ?? form.Action, form.Data)
: http.Get(new UriBuilder(actionUrl ?? form.Action)
{
Query = form.Data.ToW3FormEncoded()
}.Uri));
}
static IQuery <HttpFetch <HttpContent> > Submit(ParsedHtml html,
string formSelector, int?formIndex,
NameValueCollection data)
{
var forms =
from f in formIndex == null
? html.QueryFormSelectorAll(formSelector)
: formIndex < html.Forms.Count
? Enumerable.Repeat(html.Forms[(int)formIndex], 1)
: Enumerable.Empty <HtmlForm>()
select new
{
Action = new Uri(html.TryBaseHref(f.Action), UriKind.Absolute),
f.Method,
f.EncType, // TODO validate
Data = f.GetSubmissionData(),
};
var form = forms.FirstOrDefault();
if (form == null)
{
throw new Exception("No HTML form for submit.");
}
if (data != null)
{
foreach (var e in data.AsEnumerable())
{
form.Data.Remove(e.Key);
if (e.Value.Length == 1 && e.Value[0] == null)
{
continue;
}
foreach (var value in e.Value)
{
form.Data.Add(e.Key, value);
}
}
}
return(form.Method == HtmlFormMethod.Post
? Http.Post(form.Action, form.Data)
: Http.Get(new UriBuilder(form.Action)
{
Query = form.Data.ToW3FormEncoded()
}.Uri));
}