Change paths where images and enclosures are saved

Images are now stored in the cache directory in a dedicated subdir
called "images".
Enclosures are stored in the data directory in a dedicated subdir
"enclosures".

src/enclosure.cpp

@@ -48,7 +48,7 @@ Enclosure::Enclosure(Entry *entry)
 
 void Enclosure::download()
 {
-    EnclosureDownloadJob *downloadJob = new EnclosureDownloadJob(m_url, m_entry->title());
+    EnclosureDownloadJob *downloadJob = new EnclosureDownloadJob(m_url, path(), m_entry->title());
     downloadJob->start();
 
     m_downloadProgress = 0;
@@ -101,5 +101,5 @@ void Enclosure::deleteFile()
 
 QString Enclosure::path() const
 {
-    return Fetcher::instance().filePath(m_url);
+    return Fetcher::instance().enclosurePath(m_url);
 }

src/enclosuredownloadjob.cpp

@@ -12,9 +12,10 @@
 #include "enclosuredownloadjob.h"
 #include "fetcher.h"
 
-EnclosureDownloadJob::EnclosureDownloadJob(const QString& url, const QString& title, QObject *parent)
+EnclosureDownloadJob::EnclosureDownloadJob(const QString& url, const QString& filename, const QString& title, QObject *parent)
     : KJob(parent)
     , m_url(url)
+    , m_filename(filename)
     , m_title(title)
 {
     setCapabilities(Killable);
@@ -27,7 +28,7 @@ void EnclosureDownloadJob::start()
 
 void EnclosureDownloadJob::startDownload()
 {
-    m_reply = Fetcher::instance().download(m_url);
+    m_reply = Fetcher::instance().download(m_url, m_filename);
 
     Q_EMIT description(this, i18n("Downloading %1", m_title));
 

src/enclosuredownloadjob.h

@@ -13,13 +13,14 @@ class EnclosureDownloadJob : public KJob
 {
 
 public:
-    explicit EnclosureDownloadJob(const QString &url, const QString &title, QObject *parent = nullptr);
+    explicit EnclosureDownloadJob(const QString &url, const QString &filename, const QString &title, QObject *parent = nullptr);
 
     void start() override;
     bool doKill() override;
 
 private:
     QString m_url;
+    QString m_filename;
     QString m_title;
     QNetworkReply *m_reply = nullptr;
 

src/fetcher.cpp

@@ -9,6 +9,7 @@
 #include <QDebug>
 #include <QFile>
 #include <QFileInfo>
+#include <QDir>
 #include <QNetworkAccessManager>
 #include <QNetworkReply>
 #include <QStandardPaths>
@@ -213,27 +214,27 @@ void Fetcher::processEnclosure(Syndication::EnclosurePtr enclosure, Syndication:
     Database::instance().execute(query);
 }
 
-QString Fetcher::image(const QString &url)
+QString Fetcher::image(const QString& url) const
 {
-    QString path = filePath(url);
+    QString path = imagePath(url);
     if (QFileInfo::exists(path)) {
         if (QFileInfo(path).size() != 0 )
             return path;
     }
 
-    download(url);
+    download(url, path);
 
     return QLatin1String("");
 }
 
-QNetworkReply *Fetcher::download(QString url)
+QNetworkReply *Fetcher::download(const QString &url, const QString &filePath) const
 {
     QNetworkRequest request((QUrl(url)));
     QNetworkReply *reply = get(request);
     connect(reply, &QNetworkReply::finished, this, [=]() {
         if (reply->isOpen()) {
             QByteArray data = reply->readAll();
-            QFile file(filePath(url));
+            QFile file(filePath);
             file.open(QIODevice::WriteOnly);
             file.write(data);
             file.close();
@@ -248,16 +249,28 @@ QNetworkReply *Fetcher::download(QString url)
 
 void Fetcher::removeImage(const QString &url)
 {
-    qDebug() << filePath(url);
+    qDebug() << imagePath(url);
-    QFile(filePath(url)).remove();
+    QFile(imagePath(url)).remove();
 }
 
-QString Fetcher::filePath(const QString &url)
+QString Fetcher::imagePath(const QString &url) const
 {
-    return QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QStringLiteral("/") + QString::fromStdString(QCryptographicHash::hash(url.toUtf8(), QCryptographicHash::Md5).toHex().toStdString());
+    QString path = QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + QStringLiteral("/images/");
+    // Create path in cache if it doesn't exist yet
+    QFileInfo().absoluteDir().mkpath(path);
+    return path + QString::fromStdString(QCryptographicHash::hash(url.toUtf8(), QCryptographicHash::Md5).toHex().toStdString());
 }
 
-QNetworkReply *Fetcher::get(QNetworkRequest &request)
+
+QString Fetcher::enclosurePath(const QString &url) const
+{
+    QString path = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + QStringLiteral("/enclosures/");
+    // Create path in cache if it doesn't exist yet
+    QFileInfo().absoluteDir().mkpath(path);
+    return path + QString::fromStdString(QCryptographicHash::hash(url.toUtf8(), QCryptographicHash::Md5).toHex().toStdString());
+}
+
+QNetworkReply *Fetcher::get(QNetworkRequest &request) const
 {
     request.setRawHeader("User-Agent", "Alligator/0.1; Syndication");
     return manager->get(request);

src/fetcher.h

@@ -22,11 +22,12 @@ public:
     }
     Q_INVOKABLE void fetch(const QString &url);
     Q_INVOKABLE void fetchAll();
-    Q_INVOKABLE QString image(const QString &url);
+    Q_INVOKABLE QString image(const QString &url) const;
     void removeImage(const QString &url);
-    Q_INVOKABLE QNetworkReply *download(QString url);
+    Q_INVOKABLE QNetworkReply *download(const QString &url, const QString &fileName) const;
-    QNetworkReply *get(QNetworkRequest &request);
+    QNetworkReply *get(QNetworkRequest &request) const;
-    QString filePath(const QString &url);
+    QString imagePath(const QString &url) const;
+    QString enclosurePath(const QString &url) const;
 
 private:
     Fetcher();
@@ -45,5 +46,5 @@ Q_SIGNALS:
     void feedDetailsUpdated(const QString &url, const QString &name, const QString &image, const QString &link, const QString &description, const QDateTime &lastUpdated);
     void error(const QString &url, int errorId, const QString &errorString);
     void entryAdded(const QString &feedurl, const QString &id);
-    void downloadFinished(QString url);
+    void downloadFinished(QString url) const;
 };