106 lines
3.8 KiB
C#

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Gallery.Util;
using Gallery.Util.Interface;
using Gallery.Util.Model;
using Xamarin.Forms;
namespace Gallery.Sources.Gelbooru
{
public class GallerySource : GallerySourceBase
{
public override string Name => "Gelbooru";
public override string Route => "gelbooru";
public override string FlyoutIconKey => "Gelbooru";
public override string HomePage => "https://gelbooru.com";
public override async Task<IEnumerable<GalleryItem>> GetRecentItemsAsync(int page)
{
var offset = (page - 1) * 42;
var url = $"https://gelbooru.com/index.php?page=post&s=list&tags=all&pid={offset}";
var (result, error) = await NetHelper.RequestObject(url, @return: content => ResolveGalleryItems(content));
if (result == null || !string.IsNullOrEmpty(error))
{
Log.Error("gelbooru.content.load", $"failed to load content array, error: {error}");
return null;
}
return result;
}
private GalleryItem[] ResolveGalleryItems(string content)
{
var regex = new Regex(
@"<article(.|\n)+?<a id=""p(\d+?)"" href=""([^""]+?)"">(.|\n)+?<img src=""([^""]+?)"" title=""([^""]+?)""",
RegexOptions.Multiline);
var matches = regex.Matches(content);
var items = new GalleryItem[matches.Count];
for (var i = 0; i < items.Length; i++)
{
var g = matches[i].Groups;
items[i] = new GalleryItem(int.Parse(g[2].Value))
{
RawUrl = g[3].Value.Replace("&amp;", "&"),
PreviewUrl = g[5].Value,
Tags = g[6].Value.Split(' '),
Source = Route,
IsRawPage = true
};
}
return items;
}
public override async Task<string> ResolveImageUrl(GalleryItem item)
{
var (result, error) = await NetHelper.RequestObject(item.RawUrl, @return: content =>
{
var regex = new Regex(
@"<section class=""image-container.+?" + // data-id=""(\d+?)"".+?data-tags=""([^""]+?)"".+?
@"data-width=""(\d+?)"" data-height=""(\d+?)"".+?data-uploader-id=""([^""]*?)"" " +
@"data-normalized-source=""([^""]+?)""(.|\n)*?<img .*?src=""([^""]+?)""",
RegexOptions.Multiline);
var m = regex.Match(content);
if (m.Success)
{
var g = m.Groups;
item.Width = int.Parse(g[1].Value);
item.Height = int.Parse(g[2].Value);
item.UserId = g[3].Value;
item.SourceUrl = g[4].Value;
item.RawUrl = g[6].Value;
return item.RawUrl;
}
return null;
});
if (result == null || !string.IsNullOrEmpty(error))
{
Log.Error("gelbooru.imageUrl.resolve", $"failed to load data, error: {error}");
return null;
}
return result;
}
public override void SetCookie()
{
throw new NotImplementedException();
}
public override void InitDynamicResources(string family, ResourceDictionary light, ResourceDictionary dark)
{
var icon = new FontImageSource
{
FontFamily = family,
Glyph = "\uf5d2",
Size = 18.0
};
light.Add(FlyoutIconKey, icon);
dark.Add(FlyoutIconKey, icon);
}
}
}