Client fails to connect to marvel.fandom.com

[mthomason12]

marvel.fandom.com (and possibly other fandom sites) fail to connect via the client due to the following problems (note that I've put in workaround code to solve this, and have included it below, but it's probably a bit messy)

• Site contains two namespaces called "Portal", causing NamespaceCollection to fail trying to create dictionary nameNsDict Workaround:

`

    internal NamespaceCollection(WikiSite site, JObject namespaces, JArray jaliases)
    {
        // jaliases : query.namespacealiases
        if (site == null) throw new ArgumentNullException(nameof(site));
        if (namespaces == null) throw new ArgumentNullException(nameof(namespaces));
        idNsDict = namespaces.ToObject<IDictionary<int, NamespaceInfo>>(Utility.WikiJsonSerializer);  
        nameNsDict = new Dictionary<string, NamespaceInfo>();
        //build dictionary entry-by-entry, checking for duplicate keys due to Fandom having two "portal" namespaces
        foreach (var ns in idNsDict.Values)
        {
            string newkey = ns.CanonicalName.ToLowerInvariant();
            if (!nameNsDict.ContainsKey(newkey))
            {
                nameNsDict.Add(newkey, ns);
            }
        }

`

• Site contains an interwiki link DCDP, causing an assertion in InterwikiEntry. I just commented out the assert to get around this.

`

public class InterwikiEntry
{
    private string _Prefix;
    /// <summary>
    /// The prefix of the interwiki link;
    /// this is used the same way as a namespace is used when editing.
    /// </summary>
    /// <remarks>Prefixes must be all lower-case.</remarks>
    [JsonProperty]
    public string Prefix
    {
        get { return _Prefix; }
        private set
        {
            //if (value != null) Debug.Assert(value == value.ToLowerInvariant()); //commented out to prevent assertion due to Fandom having some uppercase prefixes
            _Prefix = value;
        }
    }

`

[CXuesong]

Which version of WCL are you using? I think this issue has been resolved by now, If you are referencing CXuesong.MW.WikiClientLibrary.Wikia NuGet package only, please also install latest CXuesong.MW.WikiClientLibrary package, if necessary.

https://github.com/CXuesong/WikiClientLibrary/blob/52899e7d715460a00441244d3902b416e599afa9/WikiClientLibrary/Sites/SiteInfo.cs#L402-L414

[CXuesong]

As for duplicate Portal namespaces, here is the response of https://marvel.fandom.com/api.php?action=query&format=json&meta=siteinfo&siprop=namespaces%7Cnamespacealiases . Note that Portal ns takes both 124 and 126 ns_id.

@mthomason12 you should probably report this issue to your staff, since Portal namespace looks like a site-specific one.

{
    "query": {
        "namespaces": {
            "-2": {
                "id": -2,
                "case": "first-letter",
                "*": "Media",
                "canonical": "Media"
            },
            "-1": {
                "id": -1,
                "case": "first-letter",
                "*": "Special",
                "canonical": "Special"
            },
            "0": {
                "id": 0,
                "case": "first-letter",
                "*": "",
                "subpages": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Talk",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "User",
                "subpages": "",
                "canonical": "User"
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "User talk",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "Marvel Database",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "Marvel Database talk",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "File",
                "subpages": "",
                "canonical": "File"
            },
            "7": {
                "id": 7,
                "case": "first-letter",
                "*": "File talk",
                "subpages": "",
                "canonical": "File talk"
            },
            "8": {
                "id": 8,
                "case": "first-letter",
                "*": "MediaWiki",
                "subpages": "",
                "canonical": "MediaWiki"
            },
            "9": {
                "id": 9,
                "case": "first-letter",
                "*": "MediaWiki talk",
                "subpages": "",
                "canonical": "MediaWiki talk"
            },
            "10": {
                "id": 10,
                "case": "first-letter",
                "*": "Template",
                "subpages": "",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Template talk",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Help",
                "subpages": "",
                "canonical": "Help"
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Help talk",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Category",
                "subpages": "",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Category talk",
                "subpages": "",
                "canonical": "Category talk"
            },
            "100": {
                "id": 100,
                "case": "first-letter",
                "*": "Merge",
                "canonical": "Merge"
            },
            "101": {
                "id": 101,
                "case": "first-letter",
                "*": "Merge talk",
                "canonical": "Merge talk"
            },
            "110": {
                "id": 110,
                "case": "first-letter",
                "*": "Forum",
                "subpages": "",
                "canonical": "Forum"
            },
            "111": {
                "id": 111,
                "case": "first-letter",
                "*": "Forum talk",
                "subpages": "",
                "canonical": "Forum talk"
            },
            "112": {
                "id": 112,
                "case": "first-letter",
                "*": "News",
                "canonical": "News"
            },
            "113": {
                "id": 113,
                "case": "first-letter",
                "*": "News talk",
                "canonical": "News talk"
            },
            "114": {
                "id": 114,
                "case": "first-letter",
                "*": "Blogs",
                "canonical": "Blogs"
            },
            "115": {
                "id": 115,
                "case": "first-letter",
                "*": "Blogs talk",
                "canonical": "Blogs talk"
            },
            "116": {
                "id": 116,
                "case": "first-letter",
                "*": "Comics",
                "canonical": "Comics",
                "content": ""
            },
            "117": {
                "id": 117,
                "case": "first-letter",
                "*": "Comics talk",
                "canonical": "Comics talk"
            },
            "118": {
                "id": 118,
                "case": "first-letter",
                "*": "Glossary",
                "canonical": "Glossary",
                "content": ""
            },
            "119": {
                "id": 119,
                "case": "first-letter",
                "*": "Glossary talk",
                "canonical": "Glossary talk"
            },
            "120": {
                "id": 120,
                "case": "first-letter",
                "*": "Minor",
                "canonical": "Minor"
            },
            "121": {
                "id": 121,
                "case": "first-letter",
                "*": "Minor talk",
                "canonical": "Minor talk"
            },
            "122": {
                "id": 122,
                "case": "first-letter",
                "*": "Instant Expert",
                "canonical": "Instant Expert"
            },
            "123": {
                "id": 123,
                "case": "first-letter",
                "*": "Instant Expert talk",
                "canonical": "Instant Expert talk"
            },
            "124": {
                "id": 124,
                "case": "first-letter",
                "*": "Portal",
                "subpages": "",
                "canonical": "Portal",
                "content": ""
            },
            "125": {
                "id": 125,
                "case": "first-letter",
                "*": "Portal talk",
                "subpages": "",
                "canonical": "Portal talk",
                "content": ""
            },
            "126": {
                "id": 126,
                "case": "first-letter",
                "*": "Portal",
                "subpages": "",
                "canonical": "Portal",
                "content": ""
            },
            "127": {
                "id": 127,
                "case": "first-letter",
                "*": "Portal talk",
                "canonical": "Portal talk"
            },
            "500": {
                "id": 500,
                "case": "first-letter",
                "*": "User blog",
                "subpages": "",
                "canonical": "User blog"
            },
            "501": {
                "id": 501,
                "case": "first-letter",
                "*": "User blog comment",
                "subpages": "",
                "canonical": "User blog comment"
            },
            "502": {
                "id": 502,
                "case": "first-letter",
                "*": "Blog",
                "subpages": "",
                "canonical": "Blog"
            },
            "503": {
                "id": 503,
                "case": "first-letter",
                "*": "Blog talk",
                "subpages": "",
                "canonical": "Blog talk"
            },
            "828": {
                "id": 828,
                "case": "first-letter",
                "*": "Module",
                "subpages": "",
                "canonical": "Module"
            },
            "829": {
                "id": 829,
                "case": "first-letter",
                "*": "Module talk",
                "subpages": "",
                "canonical": "Module talk"
            },
            "1200": {
                "id": 1200,
                "case": "first-letter",
                "*": "Message Wall",
                "subpages": "",
                "canonical": "Message Wall"
            },
            "1201": {
                "id": 1201,
                "case": "first-letter",
                "*": "Thread",
                "subpages": "",
                "canonical": "Thread"
            },
            "1202": {
                "id": 1202,
                "case": "first-letter",
                "*": "Message Wall Greeting",
                "canonical": "Message Wall Greeting"
            },
            "2000": {
                "id": 2000,
                "case": "first-letter",
                "*": "Board",
                "canonical": "Board"
            },
            "2001": {
                "id": 2001,
                "case": "first-letter",
                "*": "Board Thread",
                "subpages": "",
                "canonical": "Board Thread"
            },
            "2002": {
                "id": 2002,
                "case": "first-letter",
                "*": "Topic",
                "canonical": "Topic"
            }
        },
        "namespacealiases": [
            {
                "id": 6,
                "*": "Image"
            },
            {
                "id": 7,
                "*": "Image talk"
            }
        ]
    }
}

[mthomason12]

Thank you for the quick response!

I'm not connected to the marvel.fandom.com wiki in any way (I'm just trying to pull some data), but will let them know about the namespace problem.

I was using the nuget packages CXuesong.MW.WikiClientLib 0.7.0 and 0.7.2, and CXuesong.MW.WikiClientLib.Wikia 0.7.0. After running into the problems I copied the master branch from git (as of 26-Jul-2020) to debug it and put in the workarounds.

[CXuesong]

Fixed in a2f8a0f6c88c294cb39e3e4a47ff674312fcee5d.

[CXuesong]

Released in v0.7.3.

[CXuesong]

Please re-open the issue if you see further problems related to this.

[mthomason12]

This is working perfectly now, thank you! Am glad this was resolved in the library, as I don't seem to be able to get hold of anyone in charge of that wiki to fix it at their end (the wikia helpdesk just ran me in circles trying to find someone responsible for removing the duplicate portal)

[CXuesong]

the wikia helpdesk just ran me in circles trying to find someone responsible for removing the duplicate portal

@mthomason12 thanks for your effort! I've checked namespace map just now and the Portal namespace is still taking both 124 and 126 namespace ids.

Not sure if it's disturbing but @KockaAdmiralac do you happen to know what we should do if we find there are conflicting namespace IDs under same namespace canonical name on a specific FANDOM site? I believe there chould be some configuration error in LocalSettings.php… Thanks in advance.

[CXuesong]

Just checked with Kocka and I've submitted another support ticket via https://fandom.zendesk.com/hc/requests/new. Should receive some response next week.

[CXuesong]

Not sure whether everyone can see it but here is the ticket: https://fandom.zendesk.com/hc/en-us/requests/963003

[CXuesong]

Ticket resolved, ns_id 124 is gone now.