/// <summary>
/// High level method that posts a Post to Medium including uploading of
/// images.
/// </summary>
/// <param name="post">An instance of the post to post to the server</param>
/// <param name="publicationId">Publication/Blog id</param>
/// <param name="documentBasePath">Base path for images to find relatively pathed images</param>
/// <returns></returns>
public MediumPost PublishCompletePost(Post post,
string documentBasePath = null,
bool sendasDraft = false)
{
var mediumPost = new MediumPost
{
title = post.Title,
content = post.Body,
contentFormat = "html",
publishStatus = sendasDraft ? "draft" : "public",
tags = post.Tags
};
if (!GetUser())
{
return(null);
}
if (!PublishPostImages(mediumPost, documentBasePath))
{
return(null);
}
return(PublishPost(mediumPost, WeblogInfo.BlogId.ToString()));
}
/// <summary>
/// Returns the Image Url from the Post operation
/// </summary>
/// <param name="post"></param>
/// <param name="userId"></param>
/// <returns></returns>
public MediumPost PublishPost(MediumPost post, string publicationId = null)
{
if (string.IsNullOrEmpty(UserId))
{
ErrorMessage = "UserId has not been set yet. Make sure to call GetUser first.";
return(null);
}
var settings = new JsonSerializerSettings()
{
NullValueHandling = NullValueHandling.Ignore,
Formatting = Formatting.Indented
};
var json = JsonConvert.SerializeObject(post, settings);
string url = MediumApiUrl + "users/" + UserId + "/posts";
if (!string.IsNullOrEmpty(publicationId))
{
url = MediumApiUrl + "publications/" + publicationId + "/posts";
}
var http = CreateHttpClient(url, json);
var httpResult = http.DownloadString(url);
if (http.Error)
{
ErrorMessage = http.ErrorMessage;
return(null);
}
if (httpResult.Contains("\"errors\":"))
{
//{ "errors":[{"message":"Publication does not exist or user not allowed to publish in it","code":2006}]}
var errorResult = JsonConvert.DeserializeObject <ErrorResult>(httpResult);
StringBuilder sb = new StringBuilder();
foreach (var err in errorResult.errors)
{
sb.AppendLine(err.message);
}
ErrorMessage = sb.ToString();
return(null);
}
var postResult = JsonConvert.DeserializeObject <MediumPostResult>(httpResult);
if (postResult.data == null)
{
ErrorMessage = "Unable to parse publishing API response.";
return(null);
}
this.PostUrl = postResult.data.url;
return(postResult.data);
}
/// <summary>
/// Scans the HTML document and uploads any local files to the Medium
/// API and returns URL that are embedded as http links into the document
/// </summary>
/// <param name="post"></param>
/// <param name="basePath"></param>
/// <returns></returns>
bool PublishPostImages(MediumPost post, string basePath)
{
// base folder name for uploads - just the folder name of the image
var baseName = Path.GetFileName(basePath);
baseName = FileUtils.SafeFilename(baseName).Replace(" ", "-");
var doc = new HtmlDocument();
doc.LoadHtml(post.content);
try
{
// send up normalized path images as separate media items
var images = doc.DocumentNode.SelectNodes("//img");
if (images != null)
{
foreach (HtmlNode img in images)
{
string imgFile = img.Attributes["src"]?.Value as string;
if (imgFile == null)
{
continue;
}
if (!imgFile.StartsWith("http://") && !imgFile.StartsWith("https://"))
{
if (!imgFile.Contains(":\\"))
{
imgFile = Path.Combine(basePath, imgFile.Replace("/", "\\"));
}
if (File.Exists(imgFile))
{
var imgUrl = PublishImage(imgFile);
img.Attributes["src"].Value = imgUrl;
}
}
}
post.content = doc.DocumentNode.OuterHtml;
}
}
catch (Exception ex)
{
ErrorMessage = "Error posting images to Medium: " + ex.Message;
return(false);
}
return(true);
}
