[shibboleth-sp2] 51/89: SSPCPP-701 Add code to make local copy of protocols.xml

[Ferenc Wágner]

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wferi pushed a commit to branch master
in repository shibboleth-sp2.

commit 8661656b35f2ce15c930535412ae7c9d57ade79a
Author: Rod Widdowson <rdw at steadingsoftware.com>
Date:   Wed Jun 8 17:29:28 2016 +0100

    SSPCPP-701 Add code to make local copy of protocols.xml
    
    https://issues.shibboleth.net/jira/browse/SSPCPP-701
    
    Note that this uses the old paradigm (load into a DOM
    and then serialize out), which is subject to SSPCPP-684,
    but the domain is much more constrained so this is not
    an issue.
---
 shibsp/binding/impl/XMLProtocolProvider.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/shibsp/binding/impl/XMLProtocolProvider.cpp b/shibsp/binding/impl/XMLProtocolProvider.cpp
index 3084076..be29538 100644
--- a/shibsp/binding/impl/XMLProtocolProvider.cpp
+++ b/shibsp/binding/impl/XMLProtocolProvider.cpp
@@ -31,6 +31,7 @@
 #include "util/SPConstants.h"
 
 #include <map>
+#include <fstream>
 #include <boost/shared_ptr.hpp>
 #include <xmltooling/io/HTTPResponse.h>
 #include <xmltooling/util/NDC.h>
@@ -198,6 +199,19 @@ pair<bool,DOMElement*> XMLProtocolProvider::load(bool backup)
     // Load from source using base class.
     pair<bool,DOMElement*> raw = ReloadableXMLFile::load(backup);
 
+    if (!backup && !m_backing.empty()) {
+        m_log.debug("backing up remote resource to (%s)", m_backing.c_str());
+        try {
+            Locker locker(getBackupLock());
+            ofstream backer(m_backing.c_str());
+            backer << *(raw.second->getOwnerDocument());
+            preserveCacheTag();
+        }
+        catch (std::exception& ex) {
+            m_log.crit("exception while backing up resource: %s", ex.what());
+        }
+    }
+
     // If we own it, wrap it.
     XercesJanitor<DOMDocument> docjanitor(raw.first ? raw.second->getOwnerDocument() : nullptr);
 

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