Fixes pages not being read from cache due to differing trailing slash

Also fixes favourites with the same problem

src/cachehandler.cpp

@@ -1,11 +1,13 @@
 #include "cachehandler.hpp"
 #include "kristall.hpp"
+#include "ioutil.hpp"
 
 #include <QDebug>
 
-void CacheHandler::push(const QUrl &url, const QByteArray &body, const MimeType &mime)
+void CacheHandler::push(const QUrl &u, const QByteArray &body, const MimeType &mime)
 {
-    QString urlstr = url.toString(QUrl::FullyEncoded | QUrl::RemoveFragment);
+    QUrl url = IoUtil::uniformUrl(u);
+    QString urlstr = url.toString(QUrl::FullyEncoded);;
 
     if (this->page_cache.find(urlstr) != this->page_cache.end())
     {
@@ -34,7 +36,7 @@ std::shared_ptr<CachedPage> CacheHandler::find(const QString &url)
 
 std::shared_ptr<CachedPage> CacheHandler::find(const QUrl &url)
 {
-    return this->find(url.toString(QUrl::FullyEncoded | QUrl::RemoveFragment));
+    return this->find(IoUtil::uniformUrlString(url));
 }
 
 bool CacheHandler::contains(const QString &url) const
@@ -44,7 +46,7 @@ bool CacheHandler::contains(const QString &url) const
 
 bool CacheHandler::contains(const QUrl &url) const
 {
-    return this->contains(url.toString(QUrl::FullyEncoded | QUrl::RemoveFragment));
+    return this->contains(IoUtil::uniformUrlString(url));
 }
 
 CacheMap const& CacheHandler::getPages() const

src/cachehandler.hpp

@@ -51,14 +51,17 @@ class CacheHandler
 public:
     void push(QUrl const & url, QByteArray const & body, MimeType const & mime);
 
-    std::shared_ptr<CachedPage> find(QString const &url);
     std::shared_ptr<CachedPage> find(QUrl const &url);
 
-    bool contains(QString const & url) const;
     bool contains(QUrl const & url) const;
 
     CacheMap const& getPages() const;
 
+private:
+    std::shared_ptr<CachedPage> find(QString const &url);
+
+    bool contains(QString const & url) const;
+
 private:
     // In-memory cache storage.
     CacheMap page_cache;

src/favouritecollection.cpp

@@ -1,4 +1,5 @@
 #include "favouritecollection.hpp"
+#include "ioutil.hpp"
 
 #include <cassert>
 #include <QDebug>
@@ -98,7 +99,7 @@ void FavouriteCollection::load(QSettings &settings)
             auto fav = std::make_unique<FavouriteNode>();
 
             fav->favourite.title = settings.value("title").toString();
-            fav->favourite.destination = settings.value("url").toUrl();
+            fav->favourite.destination = IoUtil::uniformUrl(settings.value("url").toUrl());
 
             group->children.emplace_back(std::move(fav));
         }
@@ -178,8 +179,9 @@ void FavouriteCollection::editFavouriteTitle(const QModelIndex &index, const QSt
     this->getMutableFavourite(index)->title = title;
 }
 
-bool FavouriteCollection::editFavouriteTitle(const QUrl &url, const QString &new_title)
+bool FavouriteCollection::editFavouriteTitle(const QUrl &u, const QString &new_title)
 {
+    QUrl url = IoUtil::uniformUrl(u);
     for(auto const & group : this->root.children)
     {
         for(auto const & ident : group->children)
@@ -197,11 +199,12 @@ bool FavouriteCollection::editFavouriteTitle(const QUrl &url, const QString &new
 
 void FavouriteCollection::editFavouriteDest(const QModelIndex &index, const QUrl &url)
 {
-    this->getMutableFavourite(index)->destination = url;
+    this->getMutableFavourite(index)->destination = IoUtil::uniformUrl(url);
 }
 
-Favourite FavouriteCollection::getFavourite(const QUrl &url) const
+Favourite FavouriteCollection::getFavourite(const QUrl &u) const
 {
+    QUrl url = IoUtil::uniformUrl(u);
     for(auto const & group : this->root.children)
     {
         for(auto const & ident : group->children)
@@ -345,8 +348,9 @@ QVector<QPair<QString, Favourite const *>> FavouriteCollection::allFavourites()
     return identities;
 }
 
-bool FavouriteCollection::containsUrl(const QUrl &url) const
+bool FavouriteCollection::containsUrl(const QUrl &u) const
 {
+    QUrl url = IoUtil::uniformUrl(u);
     for(auto const & group : this->root.children)
     {
         for(auto const & ident : group->children)
@@ -364,12 +368,13 @@ bool FavouriteCollection::addUnsorted(const QUrl &url, const QString &t)
         return false;
     return addFavourite(tr("Unsorted"), Favourite {
         t,
-        url,
+        IoUtil::uniformUrl(url),
     });
 }
 
-bool FavouriteCollection::removeUrl(const QUrl &url)
+bool FavouriteCollection::removeUrl(const QUrl &u)
 {
+    QUrl url = IoUtil::uniformUrl(u);
     for(auto const & group : this->root.children)
     {
         size_t index = 0;

src/ioutil.cpp

@@ -34,3 +34,18 @@ QString IoUtil::size_human(qint64 size)
     }
     return QString().setNum(num,'f',2)+" "+unit;
 }
+
+QUrl IoUtil::uniformUrl(QUrl url)
+{
+    // We have to manually strip the root path slash
+    // since StripTrailingSlash doesn't strip it for some reason.
+    if (url.path() == "/") url.setPath(QString { });
+
+    // This will strip slashes from non-root paths
+    return url.adjusted(QUrl::RemoveFragment | QUrl::StripTrailingSlash);
+}
+
+QString IoUtil::uniformUrlString(QUrl url)
+{
+    return IoUtil::uniformUrl(url).toString(QUrl::FullyEncoded);
+}

src/ioutil.hpp

@@ -2,12 +2,16 @@
 #define IOUTIL_HPP
 
 #include <QIODevice>
+#include <QUrl>
 
 struct IoUtil
 {
     static bool writeAll(QIODevice & dst, QByteArray const & src);
 
     static QString size_human(qint64 size);
+
+    static QUrl uniformUrl(QUrl url);
+    static QString uniformUrlString(QUrl url);
 };
 
 #endif // IOUTIL_HPP