public void PutPageContent(string title, ContentPageMetadata meta, byte[] pageContent)
{
if (title == null || meta == null)
{
return;
}
var serializedMetadata = _dbInstance.Get(Encoding.UTF8.GetBytes($"{title}@Metadata"));
if (serializedMetadata != null)
{
using (var metadataStream = new MemoryStream(serializedMetadata))
{
var prevMetadata = (ContentPageMetadata)_formatter.Deserialize(metadataStream);
if (prevMetadata.ChangeSetId > meta.ChangeSetId)
{
// Update is not required
_logger.LogWarning($"Cache update request for {title} has rev {prevMetadata.ChangeSetId} > {meta.ChangeSetId}");
return;
}
}
}
using (var metadataStream = new MemoryStream())
{
_formatter.Serialize(metadataStream, meta);
_dbInstance.Put(Encoding.UTF8.GetBytes($"{title}@Metadata"), metadataStream.GetBuffer());
_dbInstance.Put(Encoding.UTF8.GetBytes($"{title}@Content"), pageContent);
}
}
public async Task <(ContentPageMetadata, byte[])> GetPageAsync(
string title, ulong?revId = null)
{
var apiParams = new List <KeyValuePair <string, string> >
{
new KeyValuePair <string, string>("action", "parse"),
new KeyValuePair <string, string>("format", "json"),
new KeyValuePair <string, string>("formatversion", "2")
};
if (revId != null)
{
apiParams.Add(new KeyValuePair <string, string>("oldid", revId.Value.ToString("G")));
}
else
{
apiParams.Add(new KeyValuePair <string, string>("page", title));
}
var metadata = new ContentPageMetadata();
using (var httpHandler = new HttpClientHandler {
CookieContainer = _cookieContainer, UseCookies = true
})
using (var httpClient = new HttpClient(httpHandler))
using (var apiContent = new FormUrlEncodedContent(apiParams))
using (var apiResult = await httpClient.PostAsync(_cred.Value.Endpoint, apiContent))
{
apiResult.EnsureSuccessStatusCode();
dynamic apiResponse = JsonConvert.DeserializeObject(await apiResult.Content.ReadAsStringAsync());
if (apiResponse.parse != null)
{
ulong changesetId = apiResponse.parse.revid;
ulong pageId = apiResponse.parse.pageid;
string parsedContent = apiResponse.parse.text;
metadata.ChangeSetId = changesetId;
metadata.PageId = pageId;
return(metadata, (parsedContent != null) ? Encoding.UTF8.GetBytes(parsedContent) : null);
}
}
return(null, null);
}
