コード例 #1
0
/*----------------------------------------------------------------------
|   PLT_FileMediaServer::OnBrowseMetadata
+---------------------------------------------------------------------*/
NPT_Result
PLT_FileMediaServer::OnBrowseMetadata(PLT_ActionReference&          action, 
                                      const char*                   object_id, 
                                      const NPT_HttpRequestContext& context)
{
    NPT_String didl;
    PLT_MediaObjectReference item;

    /* locate the file from the object ID */
    NPT_String filepath;
    if (NPT_FAILED(GetFilePath(object_id, filepath))) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - ObjectID not found.");
        action->SetError(701, "No Such Object.");
        return NPT_FAILURE;
    }

    item = BuildFromFilePath(
        filepath, 
        true,
        &context.GetLocalAddress());

    if (item.IsNull()) return NPT_FAILURE;

    NPT_String filter;
    NPT_CHECK_SEVERE(action->GetArgumentValue("Filter", filter));

    NPT_String tmp;    
    NPT_CHECK_SEVERE(PLT_Didl::ToDidl(*item.AsPointer(), filter, tmp));

    /* add didl header and footer */
    didl = didl_header + tmp + didl_footer;

    NPT_CHECK_SEVERE(action->SetArgumentValue("Result", didl));
    NPT_CHECK_SEVERE(action->SetArgumentValue("NumberReturned", "1"));
    NPT_CHECK_SEVERE(action->SetArgumentValue("TotalMatches", "1"));

    // update ID may be wrong here, it should be the one of the container?
    // TODO: We need to keep track of the overall updateID of the CDS
    NPT_CHECK_SEVERE(action->SetArgumentValue("UpdateId", "1"));

    return NPT_SUCCESS;
}
コード例 #2
0
/*----------------------------------------------------------------------
|   PLT_FileMediaServer::OnBrowseDirectChildren
+---------------------------------------------------------------------*/
NPT_Result
PLT_FileMediaServer::OnBrowseDirectChildren(PLT_ActionReference&          action, 
                                            const char*                   object_id, 
                                            const NPT_HttpRequestContext& context)
{
    /* locate the file from the object ID */
    NPT_String dir;
    if (NPT_FAILED(GetFilePath(object_id, dir))) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - ObjectID not found.");
        action->SetError(701, "No Such Object.");
        return NPT_FAILURE;
    }

    /* retrieve the item type */
    NPT_FileInfo info;
    NPT_Result res = NPT_File::GetInfo(dir, &info);
    if (NPT_FAILED(res)) {
        /* Object does not exist */
        NPT_LOG_WARNING_1("PLT_FileMediaServer::OnBrowse - BROWSEDIRECTCHILDREN failed for item %s", dir.GetChars());
        action->SetError(800, "Can't retrieve info " + dir);
        return NPT_FAILURE;
    }

    if (info.m_Type != NPT_FileInfo::FILE_TYPE_DIRECTORY) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - BROWSEDIRECTCHILDREN not allowed on an item.");
        action->SetError(710, "item is not a container.");
        return NPT_FAILURE;
    }

    NPT_String filter;
    NPT_String startingInd;
    NPT_String reqCount;

    NPT_CHECK_SEVERE(action->GetArgumentValue("Filter", filter));
    NPT_CHECK_SEVERE(action->GetArgumentValue("StartingIndex", startingInd));
    NPT_CHECK_SEVERE(action->GetArgumentValue("RequestedCount", reqCount));   

    NPT_UInt32 start_index, req_count;
    if (NPT_FAILED(startingInd.ToInteger(start_index)) ||
        NPT_FAILED(reqCount.ToInteger(req_count))) {        
        action->SetError(412, "Precondition failed");
        return NPT_FAILURE;
    }

    NPT_List<NPT_String> entries;
    res = NPT_File::ListDirectory(dir, entries, 0, 0);
    if (NPT_FAILED(res)) {
        NPT_LOG_WARNING_1("PLT_FileMediaServer::OnBrowseDirectChildren - failed to open dir %s", (const char*) dir);
        return res;
    }

    unsigned long cur_index = 0;
    unsigned long num_returned = 0;
    unsigned long total_matches = 0;
    NPT_String didl = didl_header;

    PLT_MediaObjectReference item;
    for (NPT_List<NPT_String>::Iterator it = entries.GetFirstItem();
        it;
        ++it) {
        NPT_String& filename = *it;
        item = BuildFromFilePath(
            NPT_FilePath::Create(dir, filename), 
            true, 
            &context.GetLocalAddress());

        if (!item.IsNull()) {
            if ((cur_index >= start_index) && ((num_returned < req_count) || (req_count == 0))) {
                NPT_String tmp;
                NPT_CHECK_SEVERE(PLT_Didl::ToDidl(*item.AsPointer(), filter, tmp));

                didl += tmp;
                num_returned++;
            }
            cur_index++;
            total_matches++;        
        }
    };

    didl += didl_footer;

    NPT_CHECK_SEVERE(action->SetArgumentValue("Result", didl));
    NPT_CHECK_SEVERE(action->SetArgumentValue("NumberReturned", NPT_String::FromInteger(num_returned)));
    NPT_CHECK_SEVERE(action->SetArgumentValue("TotalMatches", NPT_String::FromInteger(total_matches))); // 0 means we don't know how many we have but most browsers don't like that!!
    NPT_CHECK_SEVERE(action->SetArgumentValue("UpdateId", "1"));

    return NPT_SUCCESS;
}
コード例 #3
0
/*----------------------------------------------------------------------
|   PLT_FileMediaServer::OnBrowseDirectChildren
+---------------------------------------------------------------------*/
NPT_Result
PLT_FileMediaServer::OnBrowseDirectChildren(PLT_ActionReference& action, 
                                            const char*          object_id, 
                                            NPT_SocketInfo*      info /* = NULL */)
{
    /* locate the file from the object ID */
    NPT_String dir;
    if (NPT_FAILED(GetFilePath(object_id, dir))) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - ObjectID not found.");
        action->SetError(701, "No Such Object.");
        return NPT_FAILURE;
    }

    /* retrieve the item type */
    NPT_DirectoryEntryInfo entry_info;
    NPT_Result res = NPT_DirectoryEntry::GetInfo(dir, entry_info);
    if (NPT_FAILED(res)) {
        /* Object does not exist */
        action->SetError(800, "Can't retrieve info " + dir);
        return NPT_FAILURE;
    }

    if (entry_info.type != NPT_DIRECTORY_TYPE) {
        /* error */
        NPT_LOG_WARNING("PLT_FileMediaServer::OnBrowse - BROWSEDIRECTCHILDREN not allowed on an item.");
        action->SetError(710, "item is not a container.");
        return NPT_FAILURE;
    }

    NPT_String filter;
    NPT_String startingInd;
    NPT_String reqCount;

    NPT_CHECK_SEVERE(action->GetArgumentValue("Filter", filter));
    NPT_CHECK_SEVERE(action->GetArgumentValue("StartingIndex", startingInd));
    NPT_CHECK_SEVERE(action->GetArgumentValue("RequestedCount", reqCount));   

    unsigned long start_index, req_count;
    if (NPT_FAILED(startingInd.ToInteger(start_index)) ||
        NPT_FAILED(reqCount.ToInteger(req_count))) {
        return NPT_FAILURE;
    }

    NPT_String path = dir;
    if (!path.EndsWith(m_DirDelimiter)) {
        path += m_DirDelimiter;
    }

    /* start iterating through the directory */
    NPT_Directory directory(path);
    NPT_String    entryName;
    res = directory.GetNextEntry(entryName);
    if (NPT_FAILED(res)) {
        NPT_LOG_WARNING_1("PLT_FileMediaServer::OnBrowseDirectChildren - failed to open dir %s", (const char*) path);
        return res;
    }

    unsigned long cur_index = 0;
    unsigned long num_returned = 0;
    unsigned long total_matches = 0;
    //unsigned long update_id = 0;
    NPT_String didl = didl_header;
    PLT_MediaObjectReference item;
    do {
        item = BuildFromFilePath(path + entryName, true, info);
        if (!item.IsNull()) {
            if ((cur_index >= start_index) && ((num_returned < req_count) || (req_count == 0))) {
                NPT_String tmp;
                NPT_CHECK_SEVERE(PLT_Didl::ToDidl(*item.AsPointer(), filter, tmp));

                didl += tmp;
                num_returned++;
            }
            cur_index++;
            total_matches++;        
        }
        res = directory.GetNextEntry(entryName);
    } while (NPT_SUCCEEDED(res));

    didl += didl_footer;

    NPT_CHECK_SEVERE(action->SetArgumentValue("Result", didl));

    NPT_CHECK_SEVERE(action->SetArgumentValue("NumberReturned", NPT_String::FromInteger(num_returned)));

    NPT_CHECK_SEVERE(action->SetArgumentValue("TotalMatches", NPT_String::FromInteger(total_matches)));

    NPT_CHECK_SEVERE(action->SetArgumentValue("UpdateId", "1"));

    return NPT_SUCCESS;
}