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authorRemko Tronçon <git@el-tramo.be>2011-03-12 12:37:23 (GMT)
committerRemko Tronçon <git@el-tramo.be>2011-03-12 12:37:23 (GMT)
commit975742531dce89ba77d6c337da16ca710bba8a66 (patch)
tree0ccaf5c34a0479ec7724225f040ee0b0232ca2d3
parent1e2722460b9a67713484903bf6382d08f7e09278 (diff)
downloadswift-contrib-975742531dce89ba77d6c337da16ca710bba8a66.zip
swift-contrib-975742531dce89ba77d6c337da16ca710bba8a66.tar.bz2
Cache vcard photo hashes.
-rw-r--r--Swiften/VCards/VCardFileStorage.cpp72
-rw-r--r--Swiften/VCards/VCardFileStorage.h10
2 files changed, 82 insertions, 0 deletions
diff --git a/Swiften/VCards/VCardFileStorage.cpp b/Swiften/VCards/VCardFileStorage.cpp
index 63652ad..3f84678 100644
--- a/Swiften/VCards/VCardFileStorage.cpp
+++ b/Swiften/VCards/VCardFileStorage.cpp
@@ -7,8 +7,13 @@
#include "Swiften/VCards/VCardFileStorage.h"
#include <boost/filesystem/fstream.hpp>
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/xml_parser.hpp>
#include <Swiften/Base/String.h>
+#include <Swiften/StringCodecs/Hexify.h>
+#include <Swiften/StringCodecs/SHA1.h>
+#include <Swiften/Base/foreach.h>
#include "Swiften/JID/JID.h"
#include "Swiften/Base/ByteArray.h"
#include "Swiften/Elements/VCard.h"
@@ -19,6 +24,28 @@
namespace Swift {
VCardFileStorage::VCardFileStorage(boost::filesystem::path dir) : vcardsPath(dir) {
+ cacheFile = vcardsPath / "vcards.xml";
+ if (boost::filesystem::exists(cacheFile)) {
+ boost::property_tree::ptree tree;
+ try {
+ boost::property_tree::xml_parser::read_xml(cacheFile.string(), tree);
+ }
+ catch (const boost::property_tree::xml_parser::xml_parser_error& e) {
+ std::cerr << "Error reading vcards file: " << e.filename() << ":" << e.line() << ": " << e.message() << std::endl;
+ }
+ foreach(const boost::property_tree::ptree::value_type &v, tree.get_child("vcards")) {
+ try {
+ JID jid(v.second.get<std::string>("jid"));
+ std::string hash(v.second.get<std::string>("phash"));
+ if (jid.isValid()) {
+ photoHashes.insert(std::make_pair(jid, hash));
+ }
+ }
+ catch (const boost::property_tree::ptree_error& e) {
+ std::cerr << "Invalid vcard value: " << e.what() << std::endl;
+ }
+ }
+ }
}
boost::shared_ptr<VCard> VCardFileStorage::getVCard(const JID& jid) const {
@@ -50,6 +77,7 @@ void VCardFileStorage::setVCard(const JID& jid, VCard::ref v) {
boost::filesystem::ofstream file(getVCardPath(jid));
file << VCardSerializer().serializePayload(v);
file.close();
+ getAndUpdatePhotoHash(jid, v);
}
boost::filesystem::path VCardFileStorage::getVCardPath(const JID& jid) const {
@@ -58,4 +86,48 @@ boost::filesystem::path VCardFileStorage::getVCardPath(const JID& jid) const {
return boost::filesystem::path(vcardsPath / (file + ".xml"));
}
+std::string VCardFileStorage::getPhotoHash(const JID& jid) const {
+ PhotoHashMap::const_iterator i = photoHashes.find(jid);
+ if (i != photoHashes.end()) {
+ return i->second;
+ }
+ else {
+ VCard::ref vCard = getVCard(jid);
+ return getAndUpdatePhotoHash(jid, vCard);
+ }
+}
+
+std::string VCardFileStorage::getAndUpdatePhotoHash(const JID& jid, VCard::ref vCard) const {
+ std::string hash;
+ if (vCard && !vCard->getPhoto().isEmpty()) {
+ hash = Hexify::hexify(SHA1::getHash(vCard->getPhoto()));
+ }
+ std::pair<PhotoHashMap::iterator, bool> r = photoHashes.insert(std::make_pair(jid, hash));
+ if (r.second) {
+ savePhotoHashes();
+ }
+ else if (r.first->second != hash) {
+ r.first->second = hash;
+ savePhotoHashes();
+ }
+ return hash;
+}
+
+void VCardFileStorage::savePhotoHashes() const {
+ boost::property_tree::ptree tree;
+ for (PhotoHashMap::const_iterator i = photoHashes.begin(); i != photoHashes.end(); ++i) {
+ boost::property_tree::ptree entry;
+ entry.put("jid", i->first.toString());
+ entry.put("phash", i->second);
+ tree.add_child("vcards.vcard", entry);
+ }
+ try {
+ boost::property_tree::xml_parser::write_xml(cacheFile.string(), tree);
+ }
+ catch (const boost::property_tree::xml_parser::xml_parser_error& e) {
+ std::cerr << "Error writing vcards file: " << e.filename() << ": " << e.message() << std::endl;
+ }
+}
+
+
}
diff --git a/Swiften/VCards/VCardFileStorage.h b/Swiften/VCards/VCardFileStorage.h
index 5f8cb1a..26bf4b2 100644
--- a/Swiften/VCards/VCardFileStorage.h
+++ b/Swiften/VCards/VCardFileStorage.h
@@ -8,6 +8,8 @@
#include <boost/shared_ptr.hpp>
#include <boost/filesystem.hpp>
+#include <string>
+#include <map>
#include "Swiften/VCards/VCardStorage.h"
@@ -19,10 +21,18 @@ namespace Swift {
virtual VCard::ref getVCard(const JID& jid) const;
virtual void setVCard(const JID& jid, VCard::ref v);
+ virtual std::string getPhotoHash(const JID&) const;
+
private:
boost::filesystem::path getVCardPath(const JID&) const;
+ std::string getAndUpdatePhotoHash(const JID& jid, VCard::ref vcard) const;
+ void savePhotoHashes() const;
+
private:
boost::filesystem::path vcardsPath;
+ boost::filesystem::path cacheFile;
+ typedef std::map<JID, std::string> PhotoHashMap;
+ mutable PhotoHashMap photoHashes;
};
}