public override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
//context.AddItem("URL", response.Request.Url);
//context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
//var result = CheckType(response.Request.Url);
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("page 页:" + context.GetSelectable().XPath(".//title").GetValue());
Console.ForegroundColor = ConsoleColor.White;
//var subs = context.GetSelectable().XPath("*[@id='post_rank']/div[2]/div/div[@class='tag_div']/ul/li/a/@href").GetValues();
//var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[2]/ul/li/a[1]/@href").GetValue();
//var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a").Nodes().Count();
/*var pages = context.GetSelectable().XPath("//*[@id=\"listdiv\"]/div[3]/div/a[not(@class)]/@href").GetValues();
* foreach (var page in pages)
* {
* var request = new Request();
* request.Url = page;
* request.OwnerId = response.Request.OwnerId;
* context.AddTargetRequests(request);
* }*/
return(Task.FromResult(DataFlowResult.Success));
}
protected override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
context.AddItem("URL", response.Request.Url);
context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
Dictionary <string, string> tags = new Dictionary <string, string>();
var tagNodes = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a").Nodes();
foreach (var node in tagNodes)
{
var url = node.XPath("./@href").GetValue();
var name = node.GetValue();
tags.Add(url, name);
Console.WriteLine("url:" + url + " - name:" + name);
}
var requests = new List <Request>();
foreach (var tag in tags)
{
var request = new Request
{
Url = tag.Key,
OwnerId = response.Request.OwnerId,
};
request.Properties.Add("tag", tag.Value);
requests.Add(request);
}
context.AddTargetRequests(requests.ToArray());
return(Task.FromResult(DataFlowResult.Success));
}
/// <summary>
/// 取得详细图片查看的分页url
/// </summary>
/// <param name="context"></param>
public static void GetDetailPageUrl(DataFlowContext context)
{
var response = context.GetResponse();
Dictionary <string, string> pageSet = new Dictionary <string, string>();
var pages = context.GetSelectable().XPath("//*[@id=\"pages\"]/a[not(@class)]/@href").GetValues();
var requestList = new List <Request>();
foreach (var page in pages)
{
if (!pageSet.ContainsKey(page))
{
var request = new Request
{
Url = page,
OwnerId = response.Request.OwnerId,
};
request.AddProperty("tag", response.Request.GetProperty("tag"));
request.AddProperty("referer", response.Request.GetProperty("referer"));
requestList.Add(request);
pageSet.Add(page, page);
}
}
if (requestList.Count > 0)
{
context.AddTargetRequests(requestList.ToArray());
}
}
public override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
//context.AddItem("URL", response.Request.Url);
//context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine("第一页：" + context.GetSelectable().XPath(".//title").GetValue());
Console.ForegroundColor = ConsoleColor.White;
//var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a").Nodes().Count();
Dictionary <string, string> pageSet = new Dictionary <string, string>();
var pages = context.GetSelectable().XPath("//*[@id=\"listdiv\"]/div[@class='pagesYY']/div/a[not(@class)]/@href").GetValues();
var requestList = new List <Request>();
foreach (var page in pages)
{
if (!pageSet.ContainsKey(page))
{
var request = new Request();
request.Url = page;
request.OwnerId = response.Request.OwnerId;
requestList.Add(request);
pageSet.Add(page, page);
}
}
if (requestList.Count > 0)
{
context.AddTargetRequests(requestList.ToArray());
}
return(Task.FromResult(DataFlowResult.Success));
}
protected override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
context.AddItem("URL", response.Request.Url);
context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
return(Task.FromResult(DataFlowResult.Success));
}
protected override async Task <DataFlowResult> Store(DataFlowContext context)
{
var response = context.GetResponse();
var file = Path.Combine(GetDataFolder(response.Request.OwnerId), $"{response.Request.Hash}.json");
CreateFile(file);
var items = context.GetItems();
await Writer.WriteLineAsync(JsonConvert.SerializeObject(items));
return(DataFlowResult.Success);
}
protected override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
if (response != null)
{
context.AddItem("URL", response.Request.Url);
context.AddItem("Content", response.RawText);
context.AddItem("TargetUrl", response.TargetUrl);
context.AddItem("Success", response.Success);
context.AddItem("ElapsedMilliseconds", response.ElapsedMilliseconds);
}
return(Task.FromResult(DataFlowResult.Success));
}
public override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
context.AddItem("URL", response.Request.Url);
context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
Dictionary <string, string> tags = new Dictionary <string, string>();
var tagNodes = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a").Nodes();
foreach (var node in tagNodes)
{
var url = node.XPath("./@href").GetValue();
var name = node.GetValue();
tags.Add(url, name);
Console.WriteLine("url:" + url + " - name:" + name);
}
var requests = new List <Request>();
foreach (var sub in tags)
{
var request = new Request
{
Url = sub.Key,
OwnerId = response.Request.OwnerId
};
requests.Add(request);
CreateDirByTag(sub.Value);
}
context.AddTargetRequests(requests.ToArray());
/*var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a/@href").GetValues();
* var requests = new List<Request>();
* foreach (var sub in subs)
* {
* var request = new Request();
* request.Url = sub;
* request.OwnerId = response.Request.OwnerId;
* requests.Add(request);
* Console.WriteLine("sub parse:" + sub);
* }
* context.AddTargetRequests(requests.ToArray());*/
return(Task.FromResult(DataFlowResult.Success));
}
public override async Task <DataFlowResult> HandleAsync(DataFlowContext context)
{
try
{
var response = context.GetResponse();
var request = response.Request;
// 如果不匹配则终止数据流程
if (CanParse != null && !CanParse(request))
{
return(DataFlowResult.Terminated);
}
Selectable?.Invoke(context);
var parserResult = await Parse(context);
if (parserResult == DataFlowResult.Failed || parserResult == DataFlowResult.Terminated)
{
return(parserResult);
}
var urls = Follow?.Invoke(context);
if (urls != null && urls.Length > 0)
{
var followRequests = new List <Request>();
foreach (var url in urls)
{
var followRequest = CreateFromRequest(request, url);
if (CanParse(followRequest))
{
followRequests.Add(followRequest);
}
}
context.AddTargetRequests(followRequests.ToArray());
}
return(DataFlowResult.Success);
}
catch (Exception e)
{
Logger?.LogError($"数据解析发生异常: {e}");
return(DataFlowResult.Failed);
}
}
public override Task <DataFlowResult> Parse(DataFlowContext context)
{
var response = context.GetResponse();
context.AddItem("URL", response.Request.Url);
context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
//var result = CheckType(response.Request.Url);
//Console.WriteLine("type:"+result);
//var subs = context.GetSelectable().XPath("*[@id='post_rank']/div[2]/div/div[@class='tag_div']/ul/li/a/@href").GetValues();
//var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[2]/ul/li/a[1]/@href").GetValue();
//var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a").Nodes().Count();
var subs = context.GetSelectable().XPath("//*[@id=\"post_rank\"]/div[2]/div/div[@class='tag_div']/ul/li/a/@href").GetValues();
foreach (var sub in subs)
{
CreateFromRequest(response.Request, sub);
}
return(Task.FromResult(DataFlowResult.Success));
}
/// <summary>
/// 获取图片浏览页里抽图片地址
/// </summary>
/// <param name="context"></param>
public static void GetDetailPictureUrl(DataFlowContext context)
{
var response = context.GetResponse();
context.AddItem("URL", response.Request.Url);
context.AddItem("Title", context.GetSelectable().XPath(".//title").GetValue());
var images = context.GetSelectable().XPath("//*[@id=\"hgallery\"]/img/@src").GetValues();
foreach (var image in images)
{
//处理图片URL下载
var request = new Request
{
Url = image,
OwnerId = response.Request.OwnerId
};
request.AddProperty("tag", response.Request.GetProperty("tag"));
request.AddProperty("referer", response.Request.GetProperty("referer"));
request.AddProperty("subject", context.GetSelectable().XPath(".//title").GetValue());
ImageDownloader.GetInstance().AddRequest(request);
}
}
/// <summary>
/// 获取主题的地址
/// </summary>
/// <param name="context"></param>
public static void GetSubjectUrl(DataFlowContext context)
{
var response = context.GetResponse();
var pages = context.GetSelectable().XPath("//*[@id=\"listdiv\"]/ul/li/div[@class='galleryli_title']/a/@href").GetValues();
var requestList = new List <Request>();
foreach (var page in pages)
{
var request = new Request
{
Url = page,
OwnerId = response.Request.OwnerId,
};
request.AddProperty("tag", response.Request.GetProperty("tag"));
request.AddProperty("referer", response.Request.Url);
requestList.Add(request);
}
if (requestList.Count > 0)
{
context.AddTargetRequests(requestList.ToArray());
}
}
/// <summary>
/// 解析画册的分页
/// </summary>
/// <param name="context"></param>
public static void GetSubjectPageUrl(DataFlowContext context)
{
var response = context.GetResponse();
Dictionary <string, string> pageSet = new Dictionary <string, string>();
var pages = context.GetSelectable().XPath("//*[@id=\"listdiv\"]/div[@class='pagesYY']/div/a[not(@class)]/@href").GetValues();
var requestList = new List <Request>();
foreach (var page in pages)
{
if (!pageSet.ContainsKey(page))
{
try
{
var request = new Request
{
Url = page,
OwnerId = response.Request.OwnerId,
};
//request.Properties.Add("tag", response.Request.Properties["tag"]);
request.AddProperty("tag", "萝莉");
requestList.Add(request);
pageSet.Add(page, page);
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
if (requestList.Count > 0)
{
context.AddTargetRequests(requestList.ToArray());
}
}
protected override Task <DataFlowResult> Parse(DataFlowContext context)
{
if (!context.Contains(Model.TypeName))
{
context.Add(Model.TypeName, TableMetadata);
}
var selectable = context.GetSelectable();
List <dynamic> results = new List <dynamic>();
if (selectable.Properties == null)
{
selectable.Properties = new Dictionary <string, object>();
}
var environments = new Dictionary <string, string>();
foreach (var property in context.GetResponse().Request.Properties)
{
environments.Add(property.Key, property.Value);
}
if (Model.ShareValueSelectors != null)
{
foreach (var selector in Model.ShareValueSelectors)
{
string name = selector.Name;
var value = selectable.Select(selector.ToSelector()).GetValue();
if (!environments.ContainsKey(name))
{
environments.Add(name, value);
}
else
{
environments[name] = value;
}
}
}
bool singleExtractor = Model.Selector == null;
if (!singleExtractor)
{
var selector = Model.Selector.ToSelector();
var list = selectable.SelectList(selector).Nodes()?.ToList();
if (list != null)
{
if (Model.Take > 0 && list.Count > Model.Take)
{
list = Model.TakeFromHead
? list.Take(Model.Take).ToList()
: list.Skip(list.Count - Model.Take).ToList();
}
for (var i = 0; i < list.Count; ++i)
{
var item = list.ElementAt(i);
var obj = ParseObject(environments, item, i);
if (obj != null)
{
results.Add(obj);
}
else
{
Logger?.LogWarning($"解析到空数据，类型: {Model.TypeName}");
}
}
}
}
else
{
var obj = ParseObject(environments, selectable, 0);
if (obj != null)
{
results.Add(obj);
}
else
{
Logger?.LogWarning($"解析到空数据，类型: {Model.TypeName}");
}
}
if (results.Count > 0)
{
var items = context.GetItem(Model.TypeName);
if (items == null)
{
context.AddItem(Model.TypeName, results);
}
else
{
items.AddRange(results);
}
}
return(Task.FromResult(DataFlowResult.Success));
}
