public UserInfo GetUserInfo(string userIdOrAlias, UserInfoOption option)
{
var ctx = "GetUserInfo";
if (string.IsNullOrWhiteSpace(userIdOrAlias))
{
throw new ArgumentException("userIdOrAlias must not null or empty.");
}
var userInfo = new UserInfo {
FBInfo = new FacebookInfo()
};
var userAboutUrl = string.Empty;
bool isUserId = !CompiledRegex.Match(Pattern.NonDigit, userIdOrAlias).Success;
if (isUserId)
{
userAboutUrl = "https://m.facebook.com/profile.php?v=info&id=" + userIdOrAlias;
userInfo.FBInfo.Id = userIdOrAlias;
}
else
{
userAboutUrl = "https://m.facebook.com/" + userIdOrAlias + "/about";
userInfo.FBInfo.Alias = userIdOrAlias;
}
HtmlNode htmlDom = this.createDom(userAboutUrl);
// Get avatar anchor tag :
// avatarAnchorElem contain avatar image source, user display name and maybe contain id.
// if userIdOrAlias is "me user" or "other users with animated avatar" then 1st xpath is wrong
// so we need to pick another anchor
HtmlNode avatarAnchor = htmlDom.SelectSingleNode("//div[@id='root']/div/div/div/div/div/a");
if (avatarAnchor == null || // FB change structure
avatarAnchor.InnerText == Localization.EditProfilePicture || // Me user
avatarAnchor.InnerText == Localization.AddProfilePicture) // Me user
{
// pick the second pattern
avatarAnchor = htmlDom.SelectSingleNode("//div[@id='root']/div/div/div/div/div/div/a");
}
else if ((avatarAnchor.SelectSingleNode("div/a/img") != null) ||
(avatarAnchor.PreviousSibling != null && avatarAnchor.PreviousSibling.SelectSingleNode("/a/img") != null))
{
HtmlNodeCollection anchors = avatarAnchor.SelectNodes("div/a");
if (anchors != null)
{
foreach (HtmlNode anchor in anchors)
{
if (anchor.SelectSingleNode("img") != null)
{
avatarAnchor = anchor;
break;
}
}
}
else
{
mLogger.WriteLine(ctx + ":Empty avatar anchor node-001");
mLogger.WriteLine("-------");
}
}
// Update 25-0802917
else
{
if (avatarAnchor.SelectSingleNode("img") == null)
{
mLogger.WriteLine(ctx + ":Empty avatar anchor node-002");
mLogger.WriteLine("-------");
}
}
// require user id
if (!isUserId && option.FbInfoOption.IncludeUserId)
{
Match idMatch = Match.Empty;
// trying get id from avatar href
var avatarHref = avatarAnchor.GetAttributeValue("href", null);
// If we found avatar href, we might using it to detect user id
if (avatarHref != null)
{
// There is 3 pattern to detect user id
// If both 3 pattern can not detect user id, return this url for detect later.
// /photo.php?fbid=704517456378829&id=100004617430839&...
// /profile/picture/view/?profile_id=100003877944061&...
// /story.php\?story_fbid=\d+&id=(?<id>\d+) for animate avatar
if ((idMatch = CompiledRegex.Match(Pattern.UserIdFromAvatar1, avatarHref)).Success ||
(idMatch = CompiledRegex.Match(Pattern.UserIdFromAvatar2, avatarHref)).Success ||
(idMatch = CompiledRegex.Match(Pattern.UserIdFromAvatar3, avatarHref)).Success)
{
userInfo.FBInfo.Id = idMatch.Groups["id"].Value;
}
}
// now avatarHref is null or we cannot detect user id from avatarHref
// so we need try another way
if (string.IsNullOrEmpty(userInfo.FBInfo.Id))
{
// Trying to detect user id from hyperlink :
// Timeline · Friends · Photos · Likes · Followers · Following · [Activity Log]
// NOTE :
// - Activity log only show in "Me users" about page
//
// Important : /div/div/div/a must select before /div/div/a. Do not swap SelectNodes order.
HtmlNodeCollection anchors = htmlDom.SelectNodes("//div[@id='root']/div/div/div/a")
?? htmlDom.SelectNodes("//div[@id='root']/div/div/a");
if (anchors != null && anchors.Count > 0)
{
foreach (HtmlNode anchor in anchors)
{
// Get and check hrefAttr and innerText
// If both of them have value then we can detect it using compiled pattern
string hrefAttr = anchor.GetAttributeValue("href", string.Empty);
string innerText = anchor.InnerText;
if (!string.IsNullOrWhiteSpace(innerText) &&
(idMatch = CompiledRegex.Match(innerText, hrefAttr)).Success)
{
userInfo.FBInfo.Id = idMatch.Groups["id"].Value;
break;
}
}
}
}
// Try another way if id still empty
if (string.IsNullOrEmpty(userInfo.FBInfo.Id))
{
// Step 3 :
// trying get uid from action button : Add Friend, Message, Follow, More
// I only select the 1st xpath,the second xpath will be check in the future.
HtmlNodeCollection btnHrefs = htmlDom.SelectNodes("//div[@id='root']/div/div/div/table/tr/td/a");
// ??htmlDom.SelectNodes("//div[@id='root']/div/div/div");
// If we found some button nodes :
// - Add Friend node if we does not add friend with this user
// - Message if this user allow we can send message to him/her
// - Follow if this user allow we can follow him/her and we not follow him/her before
// - More if we can see more about user - i guess
if (btnHrefs != null && btnHrefs.Count > 0)
{
foreach (var btnHref in btnHrefs)
{
// if href and innertext not null then we can trying detect user id by compiled regex
// NOTE :
// - Check CompiledRegex if you think it not correct anymore
// - Edit Key if you use another Language rather than English to access FB
string hrefAttr = btnHref.GetAttributeValue("href", string.Empty);
string innerText = btnHref.InnerText;
if (!string.IsNullOrWhiteSpace(innerText) &&
(idMatch = CompiledRegex.Match(innerText, hrefAttr)).Success)
{
userInfo.FBInfo.Id = idMatch.Groups["id"].Value;
break;
}
}
}
}
}
#region IncludeUserId
// id or alias [at least one]
if (option.FbInfoOption.IncludeUserId && string.IsNullOrWhiteSpace(userInfo.FBInfo.Id))
{
// Cause these are so many pattern to detect user id so we won't log each xpath to each file
// In stead, we need to log specify link and check all xpath later.
mLogger.WriteLine(ctx + ": Require user id but user id empty");
mLogger.WriteLine("\tLink: " + userAboutUrl);
mLogger.WriteLine("-------------");
}
#endregion
#region IncludeAvatarUrl || IncludeUserDisplayName
// user name and avatar url [optional]
// check avatarAnchor is null or not -- fault tolerant -- cuz these info doesn't important
if ((option.FbInfoOption.IncludeAvatarUrl || option.FbInfoOption.IncludeUserDisplayName))
{
if (avatarAnchor != null)
{
HtmlNode avatar = avatarAnchor.SelectSingleNode("img");
if (avatar != null)
{
// Get name and avatar
if (option.FbInfoOption.IncludeUserDisplayName)
{
userInfo.FBInfo.DisplayName = WebUtility.HtmlDecode(avatar.GetAttributeValue("alt", string.Empty));
}
if (option.FbInfoOption.IncludeAvatarUrl)
{
userInfo.FBInfo.AvatarUrl = WebUtility.HtmlDecode(avatar.GetAttributeValue("src", string.Empty));
}
}
else
{
this.logXPathNullNode(ctx, avatarAnchor.InnerHtml, "img");
}
}
else
{
mLogger.WriteLine(ctx + ":IncludeAvatarUrl||IncludeUserDisplayName:Empty avatar anchor node");
mLogger.WriteLine("----");
}
}
#endregion
#region IncludeAddressInfo
if (option.IncludeAddressInfo)
{
// livingNode contains information about City and HomeTown
HtmlNode livingNode = htmlDom.SelectSingleNode("//div[@id='living']");
if (livingNode != null)
{
// Notice: See Note 001
HtmlNodeCollection trNodes = HtmlHelper.BuildDom(livingNode.InnerHtml).SelectNodes("//tr");
userInfo.Address = new AddressInfo();
foreach (var trNode in trNodes)
{
HtmlNodeCollection tds = trNode.SelectNodes("td");
// only get which td have 2 td
// td[0] is topic
// td[1] is value
if (tds == null && tds.Count != 2)
{
continue;
}
string value = string.Empty;
HtmlNode valueNode = null;
if (((valueNode = tds[1].SelectSingleNode("div/span/span")) != null) ||
((valueNode = tds[1].SelectSingleNode("div/span")) != null) ||
((valueNode = tds[1].SelectSingleNode("div/a")) != null) ||
((valueNode = tds[1].SelectSingleNode("div")) != null))
{
value = valueNode.InnerText;
// store address
if (tds[0].InnerText.Contains(Localization.CurrentCity))
{
userInfo.Address.City = value;
}
else if (tds[0].InnerText.Contains(Localization.HomeTown))
{
userInfo.Address.HomeTown = value;
}
}
else
{
mLogger.WriteLine(ctx + ":IncludeAddressInfo:Could not detect value");
mLogger.WriteLine("\tMore details:");
this.logXPathNullNode(ctx, tds[1].InnerHtml, "div/span/span || div/span || div/a || div");
mLogger.WriteLine("-------------");
}
}
}
else
{
this.logXPathNullNode(ctx, htmlDom.InnerHtml, "//div[@id='living']");
}
}
#endregion
#region IncludeContactInfo
if (option.IncludeContactInfo)
{
userInfo.Contact = new ContactInfo();
HtmlNode contactInfo = htmlDom.SelectSingleNode("//div[@id='contact-info']");
if (contactInfo != null)
{
// extract local DOM
HtmlNodeCollection trNodes = HtmlHelper.BuildDom(contactInfo.InnerHtml).SelectNodes("//tr");
foreach (var trNode in trNodes)
{
var tds = HtmlHelper.BuildDom(trNode.InnerHtml).SelectNodes("//td");
if (tds == null || tds.Count != 2)
{
continue; // ignore
}
// get contact value
string value = string.Empty;
HtmlNode valueNode = null;
if ((valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/span/span")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/span")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/a")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div")) != null)
{
value = WebUtility.HtmlDecode(valueNode.InnerText);
// store contact
if (tds[0].InnerText.Contains("Mobile"))
{
userInfo.Contact.Mobile = value;
}
else if (tds[0].InnerText.Contains("Email"))
{
userInfo.Contact.Email = value;
}
else if (tds[0].InnerText.Contains("Websites"))
{
userInfo.Contact.Website = value;
}
}
else
{
mLogger.WriteLine(ctx + ":IncludeContactInfo:Could not detect value");
mLogger.WriteLine("\tMore details:");
this.logXPathNullNode(ctx, tds[1].InnerHtml, "div/span/span || div/span || div/a || div");
mLogger.WriteLine("-------------");
}
}
}
else
{
this.logXPathNullNode(ctx, htmlDom.InnerHtml, "//div[@id='contact-info']");
}
}
#endregion
#region IncludeBasicInfo
if (option.IncludeBasicInfo)
{
userInfo.BasicInfo = new BasicInfo();
HtmlNode contactInfo = htmlDom.SelectSingleNode("//div[@id='basic-info']");
HtmlNodeCollection trNodes = HtmlHelper.BuildDom(contactInfo.InnerHtml).SelectNodes("//tr");
foreach (var trNode in trNodes)
{
var tds = HtmlHelper.BuildDom(trNode.InnerHtml).SelectNodes("//td");
if (tds == null || tds.Count != 2)
{
continue; // ignore
}
// get contact value
string value = string.Empty;
HtmlNode valueNode = null;
if ((valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/span/span")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/span")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div/a")) != null ||
(valueNode = HtmlHelper.BuildDom(tds[1].InnerHtml).SelectSingleNode("//div")) != null)
{
value = valueNode.InnerText;
// store contact
if (tds[0].InnerText.Contains("Birthday"))
{
userInfo.BasicInfo.BirthDay = value;
}
else if (tds[0].InnerText.Contains("Gender"))
{
userInfo.BasicInfo.Gender = value;
}
else if (tds[0].InnerText.Contains("Interested In"))
{
userInfo.BasicInfo.InterestedIn = value;
}
else if (tds[0].InnerText.Contains("Languages"))
{
userInfo.BasicInfo.Languages = value;
}
else if (tds[0].InnerText.Contains("Religious Views"))
{
userInfo.BasicInfo.ReligiousViews = value;
}
else if (tds[0].InnerText.Contains("Political Views"))
{
userInfo.BasicInfo.PolictialViews = value;
}
}
else
{
mLogger.WriteLine(ctx + ":IncludeBasicInfo:Could not detect value");
mLogger.WriteLine("\tMore details:");
this.logXPathNullNode(ctx, tds[1].InnerHtml, "div/span/span || div/span || div/a || div");
mLogger.WriteLine("-------------");
}
}
}
#endregion
#region IncludeEduInfo
if (option.IncludeEduInfo)
{
// coming not soon
}
#endregion
#region IncludeRelationshipInfo
if (option.IncludeRelationshipInfo)
{
// not current ver
}
#endregion
#region IncludeWorkInfo
if (option.IncludeWorkInfo)
{
// not for current ver
}
#endregion
#region IncludeFbFriends
// get user friend list if included
// at this step we do not need to check user id anymore
// if user id is null then we had return before.
if (option.FbInfoOption.IncludeFbFriends)
{
if (string.IsNullOrWhiteSpace(userInfo.FBInfo.Id))
{
mLogger.WriteLine(".GetUserInfo : Include FB Friends but User Id empty. No friends included.");
}
else
{
var friendPageUrl = "https://m.facebook.com/profile.php?v=friends&startindex=0&id=" + userInfo.FBInfo.Id;
userInfo.FBInfo.FbFriends = this.getFriends(friendPageUrl);
}
}
#endregion
// all step have done
return(userInfo);
}
List <string> getFriends(string friendPage)
{
var ctx = "_GetFriends";
// Declare list string to store user id
var friends = new List <string>();
// friendPage will be update each loop
// if there is no more friend page, this loop will be terminate.
while (true)
{
HtmlNode docNode = this.createDom(friendPage);
// See Note 001
HtmlNode rootNode = HtmlHelper.BuildDom(docNode.SelectSingleNode("//div[@id='root']").InnerHtml);
HtmlNodeCollection friendAnchors =
rootNode.SelectNodes("//table[@role='presentation']/tr/td[2]/a") ??
rootNode.SelectNodes("//table[@role='presentation']/tbody/tr/td[2]/a");
if (friendAnchors == null)
{
mLogger.WriteLine(ctx + ":friendAnchors:Maybe last page or xpath error");
mLogger.WriteLine("\tMore details:");
this.logXPathNullNode(ctx, rootNode.InnerHtml, "//table[@role='presentation']/tr/td[2]/a || //table[@role='presentation']/tbody/tr/td[2]/a");
return(friends);
}
// Loop through all node and trying to get user alias or id
foreach (HtmlNode friendAnchor in friendAnchors)
{
string id = string.Empty;
string userProfileHref = friendAnchor.GetAttributeValue("href", null);
if (userProfileHref != null)
{
if (!userProfileHref.Contains("profile.php"))
{
// if userProfileHref does't contain "profile.php", userProfileHref contain user alias.
// E.g : https://m.facebook.com:443/user.alias.here?fref=fr_tab&refid=17/about
int questionMarkIndex = userProfileHref.IndexOf("?");
if (questionMarkIndex > -1)
{
userProfileHref = userProfileHref.Substring(1, questionMarkIndex - 1);
}
else
{
userProfileHref = userProfileHref.Substring(1);
}
friends.Add(userProfileHref);
}
else
{
// Extract user id from href profile.php?id=user_id&fre...
// If extract not success then we need to log this error
Match match = CompiledRegex.Match(Pattern.UserId, userProfileHref);
if (match.Success)
{
friends.Add(match.Groups["id"].Value);
}
else
{
mLogger.WriteLine("Match user id by CompiledRege.Match(UserId) is fail. Addition info : url=" + friendPage + " and user profile is " + userProfileHref);
}
}
}
else
{
// If we go to this code block, there are some case happend :
// - Our bot has been block by this user or facebook.
// - This is deleted user.
// - We need provide more pattern to detect user id
mLogger.WriteLine(ctx + ":userProfileHref:Could not detect.");
mLogger.WriteLine("\tMaybe our bot blocked by this user or FB, or this user " + friendAnchor.InnerText + " has been banned or our xpath does not match anymore");
mLogger.WriteLine("\tLink : " + friendPage);
mLogger.WriteLine("-------------");
}
}
// get more friend
HtmlNode moreFriend = rootNode.SelectSingleNode("//div[@id='m_more_friends']/a");
if (moreFriend == null)
{
mLogger.WriteLine(ctx + ":moreFriend:No more friends page at : " + friendPage);
break;
}
var nextUrl = WebUtility.HtmlDecode(moreFriend.GetAttributeValue("href", string.Empty));
if (nextUrl != null)
{
friendPage = "https://m.facebook.com" + nextUrl;
}
else
{
mLogger.WriteLine(".GetFriends");
mLogger.WriteLine("\t\tNext Url is empty. Maybe this is last page.");
mLogger.WriteLine("\t\tLink : " + friendPage);
// exit loop
break;
}
}
return(friends);
}