xbmc/pvr/PVRCachedImages.cpp

   1 /*
   2  *  Copyright (C) 2005-2021 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "PVRCachedImages.h"
  10
  11 #include "ServiceBroker.h"
  12 #include "TextureCache.h"
  13 #include "TextureDatabase.h"
  14 #include "URL.h"
  15 #include "imagefiles/ImageFileURL.h"
  16 #include "utils/StringUtils.h"
  17 #include "utils/Variant.h"
  18 #include "utils/log.h"
  19
  20 #include <algorithm>
  21
  22 using namespace PVR;
  23
  24 int CPVRCachedImages::Cleanup(const std::vector<PVRImagePattern>& urlPatterns,
  25                               const std::vector<std::string>& urlsToCheck,
  26                               bool clearTextureForPath /* = false */)
  27 {
  28   int iCleanedImages = 0;
  29
  30   if (urlPatterns.empty())
  31   {
  32     CLog::LogFC(LOGERROR, LOGPVR, "No URL patterns given");
  33     return iCleanedImages;
  34   }
  35
  36   CTextureDatabase db;
  37   if (!db.Open())
  38   {
  39     CLog::LogFC(LOGERROR, LOGPVR, "Failed to open texture database");
  40     return iCleanedImages;
  41   }
  42
  43   CDatabase::Filter filter;
  44
  45   for (const auto& pattern : urlPatterns)
  46   {
  47     const std::string encodedPattern =
  48         StringUtils::Format("{}@{}", pattern.owner, CURL::Encode(pattern.path));
  49
  50     std::string escapedPattern;
  51     for (size_t i = 0; i < encodedPattern.size(); ++i)
  52     {
  53       if (encodedPattern[i] == '%' || encodedPattern[i] == '^')
  54         escapedPattern += '^';
  55
  56       escapedPattern += encodedPattern[i];
  57     }
  58
  59     const std::string where =
  60         StringUtils::Format("url LIKE 'image://{}%' ESCAPE '^'", escapedPattern);
  61     filter.AppendWhere(where, false); // logical OR
  62   }
  63
  64   CVariant items;
  65   if (!db.GetTextures(items, filter))
  66   {
  67     CLog::LogFC(LOGERROR, LOGPVR, "Failed to get items from texture database");
  68     return iCleanedImages;
  69   }
  70
  71   for (unsigned int i = 0; i < items.size(); ++i)
  72   {
  73     // Unwrap the image:// URL returned from texture db.
  74     const std::string textureURL =
  75         IMAGE_FILES::CImageFileURL(items[i]["url"].asString()).GetTargetFile();
  76
  77     if (std::none_of(urlsToCheck.cbegin(), urlsToCheck.cend(),
  78                      [&textureURL](const std::string& url) { return url == textureURL; }))
  79     {
  80       CLog::LogFC(LOGDEBUG, LOGPVR, "Removing stale cached image: '{}'", textureURL);
  81       CServiceBroker::GetTextureCache()->ClearCachedImage(items[i]["textureid"].asInteger());
  82
  83       if (clearTextureForPath)
  84         db.ClearTextureForPath(textureURL, "thumb");
  85
  86       iCleanedImages++;
  87     }
  88   }
  89
  90   return iCleanedImages;
  91 }