From 93fba12ad8159dc6b683f9e7ce9f0528a11047f5 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 30 May 2015 18:35:02 +0000
Subject: make libextractor actually optional, both for GNUnet and GNUnet-taler
 builds

---
 src/include/gnunet_container_lib.h | 94 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)

(limited to 'src/include/gnunet_container_lib.h')

diff --git a/src/include/gnunet_container_lib.h b/src/include/gnunet_container_lib.h
index 778e5b84b..590c6a2fa 100644
--- a/src/include/gnunet_container_lib.h
+++ b/src/include/gnunet_container_lib.h
@@ -35,8 +35,102 @@
 
 /* add error and config prototypes */
 #include "gnunet_crypto_lib.h"
+
+#if HAVE_EXTRACTOR_H
+
 #include <extractor.h>
 
+#else
+
+/* definitions from extractor.h we need for the build */
+
+/**
+ * Enumeration defining various sources of keywords.  See also
+ * http://dublincore.org/documents/1998/09/dces/
+ */
+enum EXTRACTOR_MetaType {
+  EXTRACTOR_METATYPE_RESERVED = 0,
+  EXTRACTOR_METATYPE_MIMETYPE = 1,
+  EXTRACTOR_METATYPE_FILENAME = 2,
+  EXTRACTOR_METATYPE_COMMENT = 3,
+  EXTRACTOR_METATYPE_TITLE = 4,
+  EXTRACTOR_METATYPE_BOOK_TITLE = 5,
+  EXTRACTOR_METATYPE_JOURNAL_NAME = 8,
+  EXTRACTOR_METATYPE_AUTHOR_NAME = 13,
+  EXTRACTOR_METATYPE_PUBLICATION_DATE = 24,
+  EXTRACTOR_METATYPE_URL = 29,
+  EXTRACTOR_METATYPE_URI = 30,
+  EXTRACTOR_METATYPE_ISRC = 31,
+  EXTRACTOR_METATYPE_UNKNOWN = 45,
+  EXTRACTOR_METATYPE_DESCRIPTION = 46,
+  EXTRACTOR_METATYPE_KEYWORDS = 49,
+  EXTRACTOR_METATYPE_SUBJECT = 52,
+  EXTRACTOR_METATYPE_PACKAGE_NAME = 69,
+  EXTRACTOR_METATYPE_THUMBNAIL = 114,
+  EXTRACTOR_METATYPE_ALBUM = 129,
+  EXTRACTOR_METATYPE_ARTIST = 130,
+  EXTRACTOR_METATYPE_ORIGINAL_TITLE = 162,
+  EXTRACTOR_METATYPE_GNUNET_FULL_DATA = 174,
+  EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME = 180,
+
+};
+
+/**
+ * Format in which the extracted meta data is presented.
+ */
+enum EXTRACTOR_MetaFormat {
+  /**
+   * Format is unknown.
+   */
+  EXTRACTOR_METAFORMAT_UNKNOWN = 0,
+
+  /**
+   * 0-terminated, UTF-8 encoded string.  "data_len"
+   * is strlen(data)+1.
+   */
+  EXTRACTOR_METAFORMAT_UTF8 = 1,
+
+  /**
+   * Some kind of binary format, see given Mime type.
+   */
+  EXTRACTOR_METAFORMAT_BINARY = 2,
+
+  /**
+   * 0-terminated string.  The specific encoding is unknown.
+   * "data_len" is strlen (data)+1.
+   */
+  EXTRACTOR_METAFORMAT_C_STRING = 3
+};
+
+
+/**
+ * Type of a function that libextractor calls for each
+ * meta data item found.
+ *
+ * @param cls closure (user-defined)
+ * @param plugin_name name of the plugin that produced this value;
+ *        special values can be used (i.e. '&lt;zlib&gt;' for zlib being
+ *        used in the main libextractor library and yielding
+ *        meta data).
+ * @param type libextractor-type describing the meta data
+ * @param format basic format information about @a data
+ * @param data_mime_type mime-type of @a data (not of the original file);
+ *        can be NULL (if mime-type is not known)
+ * @param data actual meta-data found
+ * @param data_len number of bytes in @a data
+ * @return 0 to continue extracting, 1 to abort
+ */
+typedef int
+(*EXTRACTOR_MetaDataProcessor) (void *cls,
+                                const char *plugin_name,
+                                enum EXTRACTOR_MetaType type,
+                                enum EXTRACTOR_MetaFormat format,
+                                const char *data_mime_type,
+                                const char *data,
+                                size_t data_len);
+
+#endif
+
 #ifndef EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME
 /* hack for LE < 0.6.3 */
 #define EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME 180
-- 
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