// Get the interactive's tagline or short description
// Previously this has been difficult to pin-point
// However I found this on 11/01/2019, they've got it in a META tag at the top of the HTML
// E.g. <META NAME="description" content="How will young James fare alone with his mature, womanly neighbors? ">
public string GetInteractiveStoryShortDescription(WdcResponse wdcPayload)
{
Regex interactiveShortDescRegex = new Regex("(?<=<META NAME=\"description\" content=\").+?(?=\">)", RegexOptions.IgnoreCase);
Match interactiveShortDescMatch = interactiveShortDescRegex.Match(wdcPayload.WebResponse);
if (!interactiveShortDescMatch.Success)
{
log.Warn($"Couldn't find the short description for interactive story '{wdcPayload.Address}'"); // Just a warning, don't throw an exception over it
}
return(HttpUtility.HtmlDecode(WdcUtil.CleanHtmlSymbols(interactiveShortDescMatch.Value)));
}
// Get the interactive story's description
public string GetInteractiveStoryDescription(WdcResponse wdcPayload)
{
Regex interactiveDescRegex = new Regex("(?<=<td align=left class=\"norm\">).+?(?=<\\/td>)", RegexOptions.IgnoreCase | RegexOptions.Singleline);
Match interactiveDescMatch = interactiveDescRegex.Match(wdcPayload.WebResponse);
if (!interactiveDescMatch.Success)
{
throw new WritingClientHtmlParseException($"Couldn't find the description for interactive story '{wdcPayload.Address}'", wdcPayload.Address, wdcPayload.WebResponse);
}
return(HttpUtility.HtmlDecode(WdcUtil.CleanHtmlSymbols(interactiveDescMatch.Value)));
}
// Get the interactive story's title
// This method grabs it from within the <title> element, not sure if it gets truncated or not.
public string GetInteractiveStoryTitle(WdcResponse wdcPayload)
{
Regex interactiveTitleRegex = new Regex("(?<=<title>).+?(?= - Writing\\.Com<\\/title>)", RegexOptions.IgnoreCase);
Match interactiveTitleMatch = interactiveTitleRegex.Match(wdcPayload.WebResponse);
if (!interactiveTitleMatch.Success)
{
throw new WritingClientHtmlParseException($"Couldn't find the title for interactive story '{wdcPayload.Address}'", wdcPayload.Address, wdcPayload.WebResponse);
}
return(HttpUtility.HtmlDecode(WdcUtil.CleanHtmlSymbols(interactiveTitleMatch.Value)));
}
// Get the available choices
// This one is going to be complicated, because none of the divs or whatnot have ID's
// First, get a chunk of the HTML that contains the choices, we'll break them down later
public IEnumerable <WdcInteractiveChapterChoice> GetInteractiveChapterChoices(WdcResponse payload)
{
if (IsInteractiveChapterEnd(payload))
{
return(null);
}
var choices = new List <WdcInteractiveChapterChoice>();
Regex chapterChoicesChunkRegex = new Regex("(?<=<b>You have the following choice(s)?:<\\/b>).*?(?=<\\/div><div id=\"end_of_choices\")",
RegexOptions.Singleline | RegexOptions.IgnoreCase);
Match chapterChoicesChunkMatch = chapterChoicesChunkRegex.Match(payload.WebResponse);
if (!chapterChoicesChunkMatch.Success)
{
throw new WritingClientHtmlParseException($"Couldn't find the HTML chunk containing choices for interactive chapter '{payload.Address}'", payload.Address, payload.WebResponse);
}
string chapterChoicesChunkHtml = chapterChoicesChunkMatch.Value;
// Then try to get the individual choices
Regex chapterChoicesRegex = new Regex("<a .*?href=\".+?\">.+?<\\/a>", RegexOptions.IgnoreCase);
MatchCollection chapterChoicesMatches = chapterChoicesRegex.Matches(chapterChoicesChunkHtml);
foreach (Match match in chapterChoicesMatches)
{
var newChoice = new WdcInteractiveChapterChoice();
string choiceUrl;
// Get the URL
Regex choiceUrlRegex = new Regex("(?<=href=\").+?(?=\")");
Match choiceUrlMatch = choiceUrlRegex.Match(match.Value);
if (!choiceUrlMatch.Success)
{
throw new WritingClientHtmlParseException($"Could not find the URL of choice '{match.Value}' on interactive chapter '{payload.Address}'", payload.Address, payload.WebResponse);
}
choiceUrl = choiceUrlMatch.Value;
// Get just the numbers from the URL
newChoice.PathLink = WdcUtil.GetFinalParmFromUrl(choiceUrl);
// Get the choice name / description
// Get what's in between the > and the <
int indexOfGt = match.Value.IndexOf('>');
int indexofLt = match.Value.LastIndexOf('<') - 1;
newChoice.Name = HttpUtility.HtmlDecode(match.Value.Substring(indexOfGt + 1, indexofLt - indexOfGt));
choices.Add(newChoice);
}
return(choices.ToArray());
}
public IEnumerable <Uri> GetInteractiveChapterList(string interactiveID, Uri pathToRoot, WdcResponse wdcPayload)
{
var chapters = new List <Uri>();
// Find the links to the interactive's pages
// Create the regex that will find chapter links
// E.g. https:\/\/www\.writing\.com\/main\/interact\/item_id\/1824771-short-stories-by-the-people\/map\/(\d)+
string chapterLinkRegexPattern = pathToRoot.ToString() + string.Format("main/interact/item_id/{0}/map/{1}", interactiveID, @"(\d)+");
chapterLinkRegexPattern = WdcUtil.RegexSafeUrl(chapterLinkRegexPattern);
Regex chapterLinkRegex = new Regex(chapterLinkRegexPattern, RegexOptions.IgnoreCase);
MatchCollection matches = chapterLinkRegex.Matches(wdcPayload.WebResponse);
foreach (Match match in matches)
{
chapters.Add(new Uri(match.Value));
}
return(chapters.ToArray());
}
public WdcTitleReaderResult ReadPageTitle(string pageTitle)
{
var r = new WdcTitleReaderResult();
if (string.IsNullOrEmpty(pageTitle))
{
return(r);
}
// Start by trimming off the " - Writing.com"
Regex titleTailPattern = new Regex(" - writing\\.com", RegexOptions.IgnoreCase);
pageTitle = titleTailPattern.Replace(pageTitle, "");
// Look for the ": ", and split it
var indexOfSeparator = pageTitle.IndexOf(TITLE_SEPARATOR);
if (indexOfSeparator < 0)
{
// Didn't find separator, is just a simple page name
r.StoryName = WdcUtil.CleanHtmlSymbols(pageTitle.Trim());
}
else
{
// Found separator, there are 2 parts
var pageTitleSplit = pageTitle.Split(TITLE_SEPARATOR);
// THe recent chapters page uses "Recent chapters: (story title)"
bool backwards = pageTitleSplit[0] == "Recent Chapters";
r.StoryName = WdcUtil.CleanHtmlSymbols(
pageTitleSplit[backwards ? 1 : 0].Trim()
);
r.PageName = WdcUtil.CleanHtmlSymbols(
pageTitleSplit[backwards ? 0 : 1].Trim()
);
}
return(r);
}
public WdcInteractiveChapter GetInteractiveChaper(string interactiveID, string chapterPath, WdcResponse payload)
{
if (!WdcUtil.IsValidChapterPath(chapterPath))
{
throw new ArgumentException($"Chapter '{chapterPath}' is not a valid chapter path", nameof(chapterPath));
}
var chapter = new WdcInteractiveChapter();
chapter.Path = chapterPath;
chapter.Title = GetInteractiveChapterTitle(payload);
chapter.Content = GetInteractiveChapterContent(payload);
if (chapterPath != "1")
{
chapter.SourceChoiceTitle = GetInteractiveChapterSourceChoice(payload); // Only get the source choice if it's not the first chapter
}
else
{
chapter.SourceChoiceTitle = "";
}
chapter.LastUpdated = DateTime.Now;
// TODO chapter author
chapter.Author = GetInteractiveChapterAuthor(payload);
var choices = GetInteractiveChapterChoices(payload);
if (choices == null)
{
chapter.IsEnd = true;
}
else
{
chapter.Choices.AddRange(choices);
}
return(chapter);
}
