/// <summary>
/// Downloads the facebook URL.
/// </summary>
/// <param name="filePath">The file path.</param>
/// <param name="pathAndQuery">The path and query.</param>
/// <param name="attributes">The attributes.</param>
/// <param name="postData">The post data.</param>
/// <param name="skipEmptyFile">The skip empty file.</param>
/// <param name="interceptResponse">The intercept response.</param>
/// <returns>System.String.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">skipEmptyFile</exception>
/// <exception cref="ArgumentOutOfRangeException">skipEmptyFile</exception>
public async Task <string> DownloadFacebookUrlAsync(string filePath, string pathAndQuery, object attributes = null, string postData = null, FacebookSkipEmptyFile skipEmptyFile = FacebookSkipEmptyFile.None, Action <Stream, Stream> interceptResponse = null)
{
var url = pathAndQuery.ExpandPathAndQuery(attributes);
_logger("DownloadFacebookUrl: " + url);
var file = await this.TryFuncAsync(typeof(WebException), () => this.DownloadFileAsync(filePath, HttpMethod.Get, url, postData, interceptResponse : interceptResponse)).ConfigureAwait(false);
switch (skipEmptyFile)
{
case FacebookSkipEmptyFile.None: return(file);
case FacebookSkipEmptyFile.ZeroLength: if (File.ReadAllBytes(file).Length == 0)
{
File.Delete(file); return(null);
}
return(file);
case FacebookSkipEmptyFile.TextHasSecondLine: if (File.ReadAllLines(file).Length <= 1)
{
File.Delete(file); return(null);
}
return(file);
default: throw new ArgumentOutOfRangeException("skipEmptyFile");
}
}
/// <summary>
/// Downloads the lead form CSV by page.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="pageId">The page identifier.</param>
/// <param name="fromDate">From date.</param>
/// <param name="toDate">To date.</param>
/// <param name="skipEmptyFile">The skip empty file.</param>
/// <returns></returns>
public IEnumerable <string> DownloadLeadFormCsvByPage(string path, long pageId, DateTime?fromDate, DateTime?toDate, FacebookSkipEmptyFile skipEmptyFile = FacebookSkipEmptyFile.None)
{
_logger("DownloadLeadFormCsvByPage: " + pageId);
EnsureAppIdAndSecret();
EnsureRequestedScope();
var maps = LoadCsvPageMaps(path, pageId);
var query = GetLeadFormsByPage(pageId)
.Select(x => new { id = x["id"], name = (string)x["name"], url = ToBusinessUrl((string)x["leadgen_export_csv_url"]) });
CsvPageMap[] map;
foreach (var item in query)
{
_logger(item.id.ToString() + " - " + item.name);
var file = DownloadFacebookUrl(path, item.url, new
{
from_date = (fromDate != null ? (int?)ToTimestamp(fromDate.Value) : null),
to_date = (toDate != null ? (int?)ToTimestamp(toDate.Value) : null),
}, null, skipEmptyFile, (maps.TryGetValue(item.id.ToString(), out map) ? (Action <Stream, Stream>)((a, b) => CsvPageIntercept(item.id.ToString(), map, a, b)) : null));
if (file != null)
{
yield return(file);
}
}
}
/// <summary>
/// Downloads the lead form CSV by page.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="pageId">The page identifier.</param>
/// <param name="fromDate">From date.</param>
/// <param name="toDate">To date.</param>
/// <param name="skipEmptyFile">The skip empty file.</param>
/// <returns>IEnumerable<System.String>.</returns>
public async Task <IEnumerable <string> > DownloadLeadFormCsvByPageAsync(string path, long pageId, DateTime?fromDate, DateTime?toDate, FacebookSkipEmptyFile skipEmptyFile = FacebookSkipEmptyFile.None)
{
_logger($"DownloadLeadFormCsvByPage: {pageId}");
EnsureAppIdAndSecret();
EnsureRequestedScope();
var maps = LoadCsvPageMaps(path, pageId);
var list = new List <string>();
foreach (var x in await GetLeadFormsByPageAsync(pageId).ConfigureAwait(false))
{
var id = x["id"].ToString();
var name = (string)x["name"];
var url = ToBusinessUrl((string)x["leadgen_export_csv_url"]);
_logger($"{id} - {name}");
var file = await DownloadFacebookUrlAsync(path, url, new
{
from_date = fromDate != null ? (int?)ToTimestamp(fromDate.Value) : null,
to_date = toDate != null ? (int?)ToTimestamp(toDate.Value) : null,
}, null, skipEmptyFile, maps.TryGetValue(id, out var map)?(Action <Stream, Stream>)((a, b) => CsvPageIntercept(id, map, a, b)) : null).ConfigureAwait(false);
if (file != null)
{
list.Add(file);
}
}
return(list);
}
