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FLAT_OPC_PKG_1.sql
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FLAT_OPC_PKG_1.sql
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CREATE OR REPLACE PACKAGE BODY FLAT_OPC_PKG AS
-- Interactive Prints using the following MIT License:
--
-- The MIT License (MIT)
--
-- Copyright (c) 2021 Mirmas IC
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in all
-- copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-- SOFTWARE.
TYPE TContentTypes IS TABLE OF VARCHAR2(400) INDEX BY VARCHAR2(256);
TYPE TFoldersAndFiles IS TABLE OF varchar2(400);
c_xml_proc_instr constant varchar(200) := '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'||chr(13)||chr(10);
function LogFoldersAndFiles(p_foldersAndFiles TFoldersAndFiles)
return varchar2
as
l_ret varchar2(32000);
begin
for i in 1..p_foldersAndFiles.count loop
l_ret := l_ret||p_foldersAndFiles(i)||',';
end loop;
if l_ret is not null then
l_ret := rtrim(l_ret,',');
end if;
return l_ret;
end;
function LogContentTypes(p_contentTypes TContentTypes)
return varchar2
as
l_ret varchar2(32000);
l_index varchar2(256);
begin
l_index := p_contentTypes.FIRST;
if l_index is not null then
l_ret := l_index||':'||p_contentTypes(l_index)||',';
end if;
while l_index is not null loop
l_index := p_contentTypes.NEXT(l_index);
if l_index is not null then
l_ret := l_ret||l_index||':'||p_contentTypes(l_index)||',';
end if;
end loop;
if l_ret is not null then
l_ret := rtrim(l_ret,',');
end if;
return l_ret;
end;
-------------------------------------------------------------OOXML2FlatOPC procedures and functions---------------------------------------------------------
/** Fills ContentType info from predefined elelment of OOXML file [Content_Types].xml into TContentTypes associative array. Predefined element could be "Default" or "Override"
* @param p_contentTypesXml CLOB version of [Content_Types].xml file.
* @param p_elementName Can be "Default" or "Override".
* @param p_attributName Can be "Extension" or "PartName".
* @return TContentTypes associative array.
*/
function GetContentTypesCollection(
p_contentTypesXml CLOB,
p_elementName varchar2,
p_attributName varchar2
)
return TContentTypes
as
l_offset number := 1;
l_element_start number;
l_element_end number;
l_key_attr_start number;
l_key_attr_end number;
l_value_attr_start number;
l_value_attr_end number;
l_key varchar2(256);
l_value varchar2(400);
l_ret TContentTypes;
begin
loop
l_element_start := dbms_lob.instr(p_contentTypesXml, '<'||p_elementName||' ', l_offset);
exit when nvl(l_element_start, 0) = 0;
l_element_end := dbms_lob.instr(p_contentTypesXml, '>', l_element_start);
exit when nvl(l_element_end, 0) = 0;
l_key_attr_start := dbms_lob.instr(p_contentTypesXml, p_attributName||'="', l_element_start);
exit when nvl(l_key_attr_start, 0) = 0;
l_key_attr_start := l_key_attr_start + length(p_attributName||'="');
l_key_attr_end := dbms_lob.instr(p_contentTypesXml, '"', l_key_attr_start);
exit when nvl(l_key_attr_end, 0) = 0;
l_value_attr_start := dbms_lob.instr(p_contentTypesXml, 'ContentType="', l_element_start);
exit when nvl(l_value_attr_start, 0) = 0;
l_value_attr_start := l_value_attr_start + length('ContentType="');
l_value_attr_end := dbms_lob.instr(p_contentTypesXml, '"', l_value_attr_start);
exit when nvl(l_key_attr_end, 0) = 0;
l_key := dbms_lob.substr(p_contentTypesXml, l_key_attr_end - l_key_attr_start, l_key_attr_start);
l_value := dbms_lob.substr(p_contentTypesXml, l_value_attr_end - l_value_attr_start, l_value_attr_start);
l_ret(l_key) := l_value;
l_offset := l_element_end;
end loop;
return l_ret;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetContentTypesCollection'
, P_SQLERRM => sqlerrm
);
raise;
end GetContentTypesCollection;
/** Fills ContentType info from predefined element of OOXML file [Content_Types].xml into two TContentTypes associative arrays one for "Default" element and one for "Override" element.
* @param p_contentTypesXml CLOB version of [Content_Types].xml file.
* @param po_extensionContentTypes Associative array of ContentTypes of "Default" elements.
* @param po_fileContentTypes Associative array of ContentTypes of "Extension" elements.
*/
procedure GetContentTypesCollections(
p_contentTypesXml CLOB,
po_extensionContentTypes OUT TContentTypes,
po_fileContentTypes OUT TContentTypes
)
as
begin
po_extensionContentTypes := GetContentTypesCollection(p_contentTypesXml, 'Default', 'Extension');
po_fileContentTypes := GetContentTypesCollection(p_contentTypesXml, 'Override', 'PartName');
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetContentTypesCollections'
, P_SQLERRM => sqlerrm
);
raise;
end GetContentTypesCollections;
function GetProcessingInstruction(p_filetype varchar2)
return varchar2
as
l_ret varchar2(400);
begin
if upper(p_filetype) = 'DOCX' then
l_ret:='<?mso-application progid="Word.Document"?>'||chr(13)||chr(10);
elsif upper(p_filetype) = 'PPTX' then
l_ret:='<?mso-application progid="PowerPoint.Show"?>'||chr(13)||chr(10);
elsif upper(p_filetype) = 'XLSX' then
l_ret:='<?mso-application progid="Excel.Sheet"?>'||chr(13)||chr(10);
end if;
return l_ret;
end;
/** returns proper ContentType for given filename from one of two associative array.
* @param p_filename File name.
* @param p_extensionContentTypes Associative array of ContentTypes of "Default" elements.
* @param p_fileContentTypes Associative array of ContentTypes of "Extension" elements.
* @return Proper ContentType for given filename.
*/
function GetContentType(
p_filename varchar2,
p_extensionContentTypes TContentTypes,
p_fileContentTypes TContentTypes
)
return varchar2
as
l_ext varchar2(5);
begin
if p_fileContentTypes.EXISTS(p_filename) then
return p_fileContentTypes(p_filename);
else
l_ext := substr(p_filename, nullif( instr(p_filename,'.', -1) +1, 1) );
if l_ext is not null then
return p_extensionContentTypes(l_ext);
end if;
end if;
--return null;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error p_filename: '||p_filename
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetContentType'
, P_SQLERRM => sqlerrm
);
raise;
end GetContentType;
/** Prepares unziped XMLe from OOXML file for include in Flat OPC. Decode blob to CLOB and cut off xml processing instruction.
* @param p_XML XML file from OOXML file as BLOB.
* @param p_encoding Encoding (if left null UTF8 assumed).
* @return XML without xml processing instruction as CLOB .
*/
function PrepareXML(p_xml BLOB, p_encoding number)
return CLOB
as
l_ret CLOB;
l_temp CLOB;
--l_nls_cs number;
l_offset number := 1;
begin
l_temp := pak_blob_util.BLOB2CLOB(p_xml, NLS_CHARSET_ID(p_encoding));
--find first element which is not proc instr
l_offset := dbms_lob.instr(l_temp, '<', l_offset);
if nvl(l_offset, 0) = 0 then
return null;
end if;
if dbms_lob.substr(l_temp, 5, l_offset+1) = '?xml ' then
l_offset := dbms_lob.instr(l_temp, '<', l_offset + 1);
if nvl(l_offset, 0) = 0 then
return null;
end if;
end if;
dbms_lob.CreateTemporary(l_ret, false);
--dbms_lob.WriteAppend(l_ret, length(l_element_tag), l_element_tag);
dbms_lob.Copy(l_ret, l_temp, dbms_lob.getlength(l_temp) - l_offset + 1, 1, l_offset);
return l_ret;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.PrepareXML'
, P_SQLERRM => sqlerrm
);
raise;
end PrepareXML;
/** Convert OOXML format (DOCX, XLSX, PPTX) to Flat OPC XML.
* If specified, converts base64 encoded embeeded DOCX or XLSX content to FlatOPC.
* @param p_OOXML Open XML blob
* @param p_filetype DOCX, XLSX or PPTX
* @param po_parts Output file names of all OOXML parts separated with comma.
* @param p_unzip_embeedeings If set to true, converts base64 encoded embeeded DOCX and XLSX content to Flat OPC.
* In that case FLAT OPC is more suitable for XSLT processing but cannot be opened with Word or PowerPoint. Excel doesn't support Flat OPC format.
* If set to false, it lefts base64 encoded embeeded content unchanged. That way you can open the file with Word or PowerPoint.
* @param p_encoding Encoding (if left null UTF8 assumed).
* @return Flat OPC XML
*/
function OOXML2FlatOPC(
p_OOXML BLOB,
p_filetype varchar2,
po_parts OUT varchar2,
p_unzip_embeedeings boolean := false,
p_encoding in varchar2 := null
)
return CLOB AS
l_ret CLOB;
l_procinstr varchar2(400);
fl zip_util_pkg.t_file_list;
l_file blob;
l_xml clob;
--l_nls_charsetid number;
l_fileContentTypes TContentTypes;
l_extensionContentTypes TContentTypes;
l_contentType varchar2(400);
l_line varchar2(4000);
l_parts varchar2(4000);
BEGIN
dbms_lob.CreateTemporary(l_ret, false);
if p_filetype is not null then
l_procinstr := GetProcessingInstruction(p_filetype);
dbms_lob.WriteAppend(l_ret, length(l_procinstr), l_procinstr);
end if;
fl := zip_util_pkg.get_file_list(p_OOXML);
l_xml := pak_blob_util.BLOB2CLOB(
zip_util_pkg.GET_FILE( p_OOXML, '[Content_Types].xml' ), NLS_CHARSET_ID(p_encoding));
GetContentTypesCollections(l_xml, l_extensionContentTypes, l_fileContentTypes);
if fl.count() > 0
then
dbms_lob.WriteAppend(l_ret, length('<pkg:package xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage">'||chr(13)||chr(10)),
'<pkg:package xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage">'||chr(13)||chr(10));
for i in fl.first .. fl.last
loop
--dbms_output.put_line ( fl( i ) );
if substr(fl(i), length(fl(i)), 1 ) != '/' then --just files not folders
l_file := zip_util_pkg.GET_FILE( p_OOXML, fl( i ) );
if fl( i ) != '[Content_Types].xml' then
l_contentType := GetContentType('/'||fl( i ), l_extensionContentTypes, l_fileContentTypes);
po_parts:=po_parts||fl( i )||':';
if substr(l_contentType, length(l_contentType)-3)='+xml' then
l_line := '<pkg:part pkg:name="/'||fl( i )||'" pkg:contentType="'||l_contentType||'">'||chr(13)||chr(10);
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
--add XML Data
dbms_lob.WriteAppend(l_ret, length('<pkg:xmlData>'||chr(13)||chr(10)), '<pkg:xmlData>'||chr(13)||chr(10));
--insert XML without proc instruction and namespaces
l_xml := PrepareXML(l_file, p_encoding);
dbms_lob.Copy(l_ret, l_xml, dbms_lob.getlength(l_xml), dbms_lob.getlength(l_ret)+1, 1);
dbms_lob.WriteAppend(l_ret, length('</pkg:xmlData>'||chr(13)||chr(10)), '</pkg:xmlData>'||chr(13)||chr(10));
elsif p_unzip_embeedeings and
(
(fl( i ) like 'word/embeddings/%.xlsx' and l_contentType='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') or
(fl( i ) like 'xl/embeddings/%.docx' and l_contentType='application/vnd.openxmlformats-officedocument.wordprocessingml.document')
)
then
l_line := '<pkg:part pkg:name="/'||fl( i )||'" pkg:contentType="'||l_contentType||'">'||chr(13)||chr(10);
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
--add XML Data
dbms_lob.WriteAppend(l_ret, length('<pkg:xmlData>'||chr(13)||chr(10)), '<pkg:xmlData>'||chr(13)||chr(10));
--insert XML without proc instruction and namespaces
l_xml := OOXML2FlatOPC(l_file, null, l_parts, false, p_encoding);
dbms_lob.Copy(l_ret, l_xml, dbms_lob.getlength(l_xml), dbms_lob.getlength(l_ret)+1, 1);
dbms_lob.WriteAppend(l_ret, length('</pkg:xmlData>'||chr(13)||chr(10)), '</pkg:xmlData>'||chr(13)||chr(10));
else
l_line := '<pkg:part pkg:name="/'||fl( i )||'" pkg:contentType="'||l_contentType||'" pkg:compression="store">'||chr(13)||chr(10);
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
--add Binary Data
dbms_lob.WriteAppend(l_ret, length('<pkg:binaryData>'||chr(13)||chr(10)), '<pkg:binaryData>'||chr(13)||chr(10));
--insert B64 encoded Binary data
l_xml := pak_blob_util.base64_encode(l_file);
dbms_lob.Copy(l_ret, l_xml, dbms_lob.getlength(l_xml), dbms_lob.getlength(l_ret)+1, 1);
dbms_lob.WriteAppend(l_ret, length('</pkg:binaryData>'||chr(13)||chr(10)), '</pkg:binaryData>'||chr(13)||chr(10));
end if;
dbms_lob.WriteAppend(l_ret, length('</pkg:part>'||chr(13)||chr(10)), '</pkg:part>'||chr(13)||chr(10));
end if;
end if;
--dbms_output.put_line( ' ' || nvl( dbms_lob.getlength( l_file ), -1 ) );
--zip_util_pkg.save_blob_to_file ('XMLDIR', 'unzipped_file_' || fl(i), l_file);
end loop;
po_parts := rtrim(po_parts, ':');
dbms_lob.WriteAppend(l_ret, length('</pkg:package>'), '</pkg:package>');
end if;
RETURN l_ret;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.OOXML2FlatOPC (BLOB ver)'
, P_SQLERRM => sqlerrm
);
raise;
END OOXML2FlatOPC;
$if CCOMPILING.g_utl_file_privilege $then
/** Convert OOXML file (DOCX, XLSX, PPTX) to Flat OPC XML file.
* If specified, converts base64 encoded embeeded content to FlatOPC.
* @param p_OOXMLDir Oracle server directory with Open XML file.
* @param p_OOXMLFile Open XML file name.
* @param p_FlatOPCDir Oracle server directory with Flat OPC file.
* @param p_FlatOPCFile Flat OPC file name.
* @param p_unzip_embeedeings If set to true, converts base64 encoded embeeded DOCX and XLSX content to Flat OPC.
* In that case FLAT OPC is more suitable for XSLT processing but cannot be opened with Word or PowerPoint. Excel doesn't support Flat OPC format.
* If set to false, it lefts base64 encoded embeeded content unchanged. That way you can open the file with Word or PowerPoint.
* @param p_encoding Encoding (if left null UTF8 assumed).
*/
procedure OOXML2FlatOPC(
p_OOXMLDir varchar2,
p_OOXMLFile varchar2,
p_FlatOPCDir varchar2,
p_FlatOPCFile varchar2,
po_parts OUT varchar2,
p_unzip_embeedeings boolean := false,
p_encoding varchar2 := null
) AS
l_FlatOPC CLOB;
l_FlatOPCDir varchar2(400);
l_FlatOPCFile varchar2(400);
l_filetype varchar2(5);
BEGIN
l_filetype := upper(substr(p_OOXMLFile, nullif( instr(p_OOXMLFile,'.', -1) +1, 1) ));
l_FlatOPCDir := nvl(p_FlatOPCDir, p_OOXMLDir);
l_FlatOPCFile := nvl(p_FlatOPCFile, p_OOXMLFile||'.xml');
l_FlatOPC := OOXML2FlatOPC(pak_blob_util.GetBlob(p_OOXMLDir, p_OOXMLFile),l_filetype, po_parts, p_unzip_embeedeings, p_encoding);
ZIP_UTIL_PKG.save_blob_to_file(l_FlatOPCDir, l_FlatOPCFile, pak_blob_util.Clob2Blob(l_FlatOPC, p_encoding));
dbms_lob.freetemporary(l_FlatOPC);
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.OOXML2FlatOPC (file ver)'
, P_SQLERRM => sqlerrm
);
raise;
END OOXML2FlatOPC;
$end
--------------------------------FlatOPC2XML procedures and functions-------------------------------------------------------------------------------------------
/** Builds [Content_Types].xml OOXML file from two TContentTypes associative arrays one for "Default" element and one for "Override" element.
* Inverse of GetContentTypesCollections procedure
* @param p_extensionContentTypes Associative array of ContentTypes of "Default" elements.
* @param p_fileContentTypes Associative array of ContentTypes of "Extension" elements.
* @return CLOB version of [Content_Types].xml file.
*/
function GetContentTypesXml(
p_extensionContentTypes TContentTypes,
p_fileContentTypes TContentTypes
)
return CLOB
as
l_ret CLOB;
l_openning varchar2(4000);
l_key varchar2(256);
l_line varchar2(4000);
i number;
begin
dbms_lob.CreateTemporary(l_ret, false);
dbms_lob.WriteAppend(l_ret, length(c_xml_proc_instr), c_xml_proc_instr);
l_line := '<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">';
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
l_key := p_extensionContentTypes.FIRST;
while l_key is not null loop
l_line := '<Default Extension="'||l_key||'" ContentType="'||p_extensionContentTypes(l_key)||'"/>';
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
l_key := p_extensionContentTypes.NEXT(l_key);
end loop;
l_key := p_fileContentTypes.FIRST;
while l_key is not null loop
l_line := '<Override PartName="'||l_key||'" ContentType="'||p_fileContentTypes(l_key)||'"/>';--prej ||'/'||l_key
dbms_lob.WriteAppend(l_ret, length(l_line), l_line);
l_key := p_fileContentTypes.NEXT(l_key);
end loop;
dbms_lob.WriteAppend(l_ret, length('</Types>'), '</Types>');
return l_ret;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetContentTypesXml'
, P_SQLERRM => sqlerrm
);
raise;
end GetContentTypesXml;
function FolderOrFileExists(
p_existingFoldersFiles TFoldersAndFiles,
p_folderorfile varchar2
)
return boolean
as
begin
for i in 1..p_existingFoldersFiles.count loop
if p_existingFoldersFiles(i) = p_folderorfile then
return true;
end if;
end loop;
return false;
end;
/** Adds ALL folder structure of file to zip. E.g. if we have file word/theme/theme1.xml procedure will add folders word/ and word/theme/ to zip.
* @param p_zipped_blob Blob with ZIP.
* @param p_filename Filename.
* @param pio_existingFolders Table of folders already added to zip to avoid double zip entries.
*/
procedure AddFolders(
p_zipped_blob in out blob
,p_filename IN varchar2
,pio_existingFolders IN OUT TFoldersAndFiles
)
as
l_filename varchar2(400);
l_folder varchar2(400);
i integer := 1;
l_end integer;
begin
l_filename := ltrim(p_filename,'/');
loop
l_end := instr(l_filename,'/', 1, i);
exit when nvl(l_end, 0) = 0;
l_folder := substr(l_filename, 1, l_end);
if not FolderOrFileExists(pio_existingFolders, l_folder) then
pio_existingFolders.extend;
pio_existingFolders(pio_existingFolders.count) := l_folder;
zip_util_pkg.add_folder(p_zipped_blob, l_folder);
end if;
i:=i+1;
end loop;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.AddFolders'
, P_SQLERRM => sqlerrm
);
raise;
end;
/** Adds pkg namespace xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage" into root pkg:package if missing
* @param p_FlatOPC Flat OPC XML.
*/
procedure AddPkgNamespace(
p_FlatOPC IN OUT NOCOPY CLOB
)
as
l_start number;
l_end number;
l_element varchar2(400);
begin
if nvl(dbms_lob.instr(p_FlatOPC, '<pkg:package xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage">'), 0) = 0 then
l_start := dbms_lob.instr(p_FlatOPC, '<pkg:package>');
if nvl(l_start, 0) = 0 then
pak_xslt_log.WriteLog
( p_description => 'Cannot find pkg:package element'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.AddPackageNamespace'
);
return;
end if;
pak_blob_util.ClobReplace(p_FlatOPC, l_start, l_start+length('<pkg:package>')-1,
'<pkg:package xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage">');
end if;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.AddPackageNamespace'
, P_SQLERRM => sqlerrm
);
raise;
end;
/** Replace DOCX and XLSX embeeding in Flat OPC format with <pkg:binaryData> element with base64 encoded OOXML as text node.
* @param p_FlatOPC Input: Flat OPC Clob with embeeded DOCX and XLSX content also extended.
* Output: Flat OPC Clob with embeeded DOCX and XLSX content as base64 encoded OOXML.
* @param p_encoding Encoding (if left null UTF8 assumed).
*/
Procedure ZipEmbeedingsOld(
p_FlatOPC IN OUT NOCOPY CLOB,
p_encoding varchar2 := null
)
as
l_flatOPCXML SYS.XMLType;
l_pkg_part_attrs DBMS_XMLDOM.DOMNAMEDNODEMAP;
l_pkg_parts DBMS_XMLDOM.DOMNODELIST;
l_pkg_part DBMS_XMLDOM.DOMNODE;
l_xml_data DBMS_XMLDOM.DOMNODE;
l_xml_data_old_child DBMS_XMLDOM.DOMNODE;
l_new_child DBMS_XMLDOM.DOMNODE;
l_filename varchar2(400);
l_filetype varchar2(5);
l_proc_instr varchar2(400);
l_startXMLData number default 1;
l_endXMLData number;
l_startPackage number default 1;
l_endPackage number;
l_contentType varchar2(400);
l_extensionContentTypes TContentTypes;
l_fileContentTypes TContentTypes;
l_ext varchar2(5);
l_xml_data_name varchar2(400);
l_xml CLOB;
l_temp CLOB;
--l_existingFolders TFoldersAndFiles := TFoldersAndFiles();
BEGIN
l_flatOPCXML := XMLType(p_FlatOPC);
if l_flatOPCXML.getRootElement() = 'package'
and l_flatOPCXML.getNamespace() = 'http://schemas.microsoft.com/office/2006/xmlPackage'
then
l_pkg_parts := DBMS_XMLDOM.GETELEMENTSBYTAGNAME(DBMS_XMLDOM.NEWDOMDOCUMENT(l_flatOPCXML), 'part');
for i in 0..DBMS_XMLDOM.GETLENGTH(l_pkg_parts)-1 loop
l_pkg_part := DBMS_XMLDOM.ITEM(l_pkg_parts, i);
l_pkg_part_attrs := DBMS_XMLDOM.GETATTRIBUTES(l_pkg_part);
l_filename := ltrim(DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'name')),'/');
l_contentType := DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'contentType'));
if (l_filename like 'word/embeddings/%.xlsx' and l_contentType='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') or
(l_filename like 'xl/embeddings/%.docx' and l_contentType='application/vnd.openxmlformats-officedocument.wordprocessingml.document')
then
l_xml_data := DBMS_XMLDOM.GETFIRSTCHILD(l_pkg_part);
l_xml_data_name := DBMS_XMLDOM.GETNODENAME(l_xml_data);
if l_xml_data_name = 'pkg:xmlData' then
dbms_lob.CreateTemporary(l_xml, false);
dbms_lob.CreateTemporary(l_temp, false);
l_proc_instr := GetProcessingInstruction(upper(substr(l_filename, instr(l_filename,'.',-1, 1) + 1)));
--get offsets of pkg:xmlData and child pkg:package elements
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:part pkg:name="/'||l_filename||'"');
exit when nvl(l_startXMLData, 0) = 0;
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:xmlData>', l_startXMLData);
exit when nvl(l_startXMLData, 0) = 0;
l_startPackage := l_startXMLData + length('<pkg:xmlData>');
l_endPackage := dbms_lob.instr(p_FlatOPC, '</pkg:package>', l_startPackage);
exit when nvl(l_endPackage, 0) = 0;
l_endPackage := l_endPackage + length('</pkg:package>');
l_endXMLData := dbms_lob.instr(p_FlatOPC, '</pkg:xmlData>', l_endPackage);
exit when nvl(l_endXMLData, 0) = 0;
l_endXMLData := l_endXMLData + length('</pkg:xmlData>');
--get XML CLOB to convert to OPEN XML
dbms_lob.writeappend(l_xml, length(l_proc_instr), l_proc_instr);
dbms_lob.copy(l_xml, p_FlatOPC, l_endPackage - l_startPackage, dbms_lob.getlength(l_xml) +1, l_startPackage);
--get clob (l_temp) converted to OPEN XML and Base64 encoded to replace pkg:xmlData element--
dbms_lob.trim(l_temp, 0);
dbms_lob.writeappend(l_temp, length('<pkg:binaryData>'),'<pkg:binaryData>');
AddPkgNamespace(l_xml);
dbms_lob.append(l_temp, pak_blob_util.base64_encode(FlatOPC2OOXML(l_xml)));
dbms_lob.writeappend(l_temp, length('</pkg:binaryData>'), '</pkg:binaryData>');
--replace from l_startXMLData to l_endXMLData with l temp
--DBMS_XSLPROCESSOR.CLOB2FILE(l_temp, 'XMLDIR', replace(l_filename, '/', '_')||'_temp.xml');
pak_blob_util.ClobReplace(p_FlatOPC, l_startXMLData, l_endXMLData - 1, l_temp);
--dbms_lob.trim(l_temp, 0);
--DBMS_XMLDOM.WRITETOCLOB(l_pkg_part, l_temp);
--DBMS_XSLPROCESSOR.CLOB2FILE(p_FlatOPC, 'XMLDIR', replace(l_filename, '/', '_')||'.xml');
dbms_lob.FreeTemporary(l_temp);
dbms_lob.FreeTemporary(l_xml);
end if;
end if;
end loop;
else
pak_xslt_log.WriteLog
( p_description => 'Invalid Format, Not Flat OPC'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.ZipEmbeedings'
);
end if;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.ZipEmbeedings'
, P_SQLERRM => sqlerrm
);
raise;
end ZipEmbeedingsOld;
/** Replace DOCX and XLSX embeeding in Flat OPC format with <pkg:binaryData> element with base64 encoded OOXML as text node.
* @param p_FlatOPC Input: Flat OPC Clob with embeeded DOCX and XLSX content also extended.
* Output: Flat OPC Clob with embeeded DOCX and XLSX content as base64 encoded OOXML.
* @param p_encoding Encoding (if left null UTF8 assumed).
*/
Procedure ZipEmbeedings(
p_FlatOPC IN OUT NOCOPY CLOB,
p_encoding varchar2 := null
)
as
l_flatOPCXML SYS.XMLType;
/*
l_pkg_part_attrs DBMS_XMLDOM.DOMNAMEDNODEMAP;
l_pkg_parts DBMS_XMLDOM.DOMNODELIST;
l_pkg_part DBMS_XMLDOM.DOMNODE;
l_xml_data DBMS_XMLDOM.DOMNODE;
l_xml_data_old_child DBMS_XMLDOM.DOMNODE;
l_new_child DBMS_XMLDOM.DOMNODE;
*/
l_filename varchar2(400);
l_filetype varchar2(5);
l_proc_instr varchar2(400);
l_startXMLData number default 1;
l_endXMLData number;
l_startPackage number default 1;
l_endPackage number;
l_contentType varchar2(400);
l_extensionContentTypes TContentTypes;
l_fileContentTypes TContentTypes;
l_ext varchar2(5);
l_xml_data_name varchar2(400);
l_xml CLOB;
l_temp CLOB;
l_cur_pack_offset number default 1;
--l_existingFolders TFoldersAndFiles := TFoldersAndFiles();
BEGIN
if dbms_lob.instr(p_FlatOPC, '<pkg:package xmlns:pkg="http://schemas.microsoft.com/office/2006/xmlPackage">') < 200
then
loop
l_cur_pack_offset := dbms_lob.instr(p_FlatOPC, '<pkg:part ', l_cur_pack_offset);
exit when nvl(l_cur_pack_offset, 0) = 0;
--preberemo atribute (pkg:contentType, pkg:name = ime datoteke
l_filename := ReadAttribute(p_FlatOPC, l_cur_pack_offset, 'pkg:name');
exit when l_filename is null;
l_contentType := ReadAttribute(p_FlatOPC, l_cur_pack_offset, 'pkg:contentType');
exit when l_contentType is null;
pak_xslt_log.WriteLog
( p_description => 'Start processing file '||l_filename
, p_log_type => pak_xslt_log.g_information
, p_procedure => 'flat_OPC_pkg.ZipEmbeedings'
);
if (l_filename like 'word/embeddings/%.xlsx' and l_contentType='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') or
(l_filename like 'xl/embeddings/%.docx' and l_contentType='application/vnd.openxmlformats-officedocument.wordprocessingml.document')
then
--get offsets of pkg:xmlData and child pkg:package elements
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:part pkg:name="/'||l_filename||'"');
exit when nvl(l_startXMLData, 0) = 0;
l_cur_pack_offset := l_startXMLData + length('<pkg:part pkg:name="/'||l_filename||'"');
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:xmlData>', l_startXMLData);
exit when nvl(l_startXMLData, 0) = 0 or l_startXMLData - l_cur_pack_offset > 100;
l_startPackage := l_startXMLData + length('<pkg:xmlData>');
l_endPackage := dbms_lob.instr(p_FlatOPC, '</pkg:package>', l_startPackage);
exit when nvl(l_endPackage, 0) = 0;
l_endPackage := l_endPackage + length('</pkg:package>');
l_endXMLData := dbms_lob.instr(p_FlatOPC, '</pkg:xmlData>', l_endPackage);
exit when nvl(l_endXMLData, 0) = 0;
l_endXMLData := l_endXMLData + length('</pkg:xmlData>');
dbms_lob.CreateTemporary(l_xml, false);
dbms_lob.CreateTemporary(l_temp, false);
l_proc_instr := GetProcessingInstruction(upper(substr(l_filename, instr(l_filename,'.',-1, 1) + 1)));
--get XML CLOB to convert to OPEN XML
dbms_lob.writeappend(l_xml, length(l_proc_instr), l_proc_instr);
dbms_lob.copy(l_xml, p_FlatOPC, l_endPackage - l_startPackage, dbms_lob.getlength(l_xml) +1, l_startPackage);
--get clob (l_temp) converted to OPEN XML and Base64 encoded to replace pkg:xmlData element--
dbms_lob.trim(l_temp, 0);
dbms_lob.writeappend(l_temp, length('<pkg:binaryData>'),'<pkg:binaryData>');
AddPkgNamespace(l_xml);
dbms_lob.append(l_temp, pak_blob_util.base64_encode(FlatOPC2OOXML(l_xml)));
dbms_lob.writeappend(l_temp, length('</pkg:binaryData>'), '</pkg:binaryData>');
--replace from l_startXMLData to l_endXMLData with l temp
--DBMS_XSLPROCESSOR.CLOB2FILE(l_temp, 'XMLDIR', replace(l_filename, '/', '_')||'_temp.xml');
pak_blob_util.ClobReplace(p_FlatOPC, l_startXMLData, l_endXMLData - 1, l_temp);
--dbms_lob.trim(l_temp, 0);
--DBMS_XMLDOM.WRITETOCLOB(l_pkg_part, l_temp);
--DBMS_XSLPROCESSOR.CLOB2FILE(p_FlatOPC, 'XMLDIR', replace(l_filename, '/', '_')||'.xml');
dbms_lob.FreeTemporary(l_temp);
dbms_lob.FreeTemporary(l_xml);
end if;
l_cur_pack_offset := dbms_lob.instr(p_FlatOPC, '</pkg:part>', l_cur_pack_offset);
exit when nvl(l_cur_pack_offset, 0) = 0;
l_cur_pack_offset := l_cur_pack_offset + length('</pkg:part>');
end loop;
else
pak_xslt_log.WriteLog
( p_description => 'Invalid Format, Not Flat OPC'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.ZipEmbeedings'
);
end if;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.ZipEmbeedings'
, P_SQLERRM => sqlerrm
);
raise;
end ZipEmbeedings;
/** Replace base64 encoded DOCX and XLSX embeeding in Flat OPC format with embeeded FlatOPC with <pkg:package> as root element.
* @param p_FlatOPC Input: Flat OPC Clob with embeeded DOCX and XLSX content also extended.
* Output: Flat OPC Clob with embeeded DOCX and XLSX content as base64 encoded OOXML.
* @param p_encoding Encoding (if left null UTF8 assumed).
*/
Procedure UnzipEmbeedings(
p_FlatOPC IN OUT NOCOPY CLOB,
p_encoding varchar2 := null
)
as
l_flatOPCXML SYS.XMLType;
l_pkg_part_attrs DBMS_XMLDOM.DOMNAMEDNODEMAP;
l_pkg_parts DBMS_XMLDOM.DOMNODELIST;
l_pkg_part DBMS_XMLDOM.DOMNODE;
l_bindata DBMS_XMLDOM.DOMNODE;
--l_new_child DBMS_XMLDOM.DOMNODE;
l_filename varchar2(400);
l_filetype varchar2(5);
--l_proc_instr varchar2(400);
l_startXMLData number default 1;
l_endXMLData number;
l_startB64 number default 1;
l_endB64 number;
l_contentType varchar2(400);
--l_extensionContentTypes TContentTypes;
--l_fileContentTypes TContentTypes;
--l_ext varchar2(5);
l_bindata_name varchar2(400);
l_bin CLOB;
l_temp CLOB;
l_parts varchar2(4000);
--l_existingFolders TFoldersAndFiles := TFoldersAndFiles();
BEGIN
l_flatOPCXML := XMLType(p_FlatOPC);
if l_flatOPCXML.getRootElement() = 'package'
and l_flatOPCXML.getNamespace() = 'http://schemas.microsoft.com/office/2006/xmlPackage'
then
l_pkg_parts := DBMS_XMLDOM.GETELEMENTSBYTAGNAME(DBMS_XMLDOM.NEWDOMDOCUMENT(l_flatOPCXML), 'part');
for i in 0..DBMS_XMLDOM.GETLENGTH(l_pkg_parts)-1 loop
l_pkg_part := DBMS_XMLDOM.ITEM(l_pkg_parts, i);
l_pkg_part_attrs := DBMS_XMLDOM.GETATTRIBUTES(l_pkg_part);
l_filename := ltrim(DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'name')),'/');
l_contentType := DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'contentType'));
if (l_filename like 'word/embeddings/%.xlsx' and l_contentType='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') or
(l_filename like 'xl/embeddings/%.docx' and l_contentType='application/vnd.openxmlformats-officedocument.wordprocessingml.document')
then
l_bindata := DBMS_XMLDOM.GETFIRSTCHILD(l_pkg_part);
l_bindata_name := DBMS_XMLDOM.GETNODENAME(l_bindata);
if l_bindata_name = 'pkg:binaryData' then
--base64_decode(l_b64)
dbms_lob.CreateTemporary(l_bin, false);
dbms_lob.CreateTemporary(l_temp, false);
--get offsets of pkg:xmlData and child pkg:package elements
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:part pkg:name="/'||l_filename||'"');
exit when nvl(l_startXMLData, 0) = 0;
l_startXMLData := dbms_lob.instr(p_FlatOPC, '<pkg:binaryData>', l_startXMLData);
exit when nvl(l_startXMLData, 0) = 0;
l_startB64 := l_startXMLData + length('<pkg:binaryData>');
l_endB64 := dbms_lob.instr(p_FlatOPC, '</pkg:binaryData>', l_startB64);
exit when nvl(l_endB64, 0) = 0;
--l_endPackage := l_endPackage + length('</pkg:package>');
l_endXMLData := l_endB64 + length('</pkg:binaryData>');
--get XML CLOB to convert to OPEN XML
dbms_lob.copy(l_bin, p_FlatOPC, l_endB64 - l_startB64, 1, l_startB64);
--ZIP_UTIL_PKG.save_blob_to_file ('XMLDIR', 'test4'||i||'.xml', base64_decode(l_bin)); OK
l_bin := OOXML2FlatOPC(
pak_blob_util.base64_decode(l_bin),
p_filetype => null,
po_parts => l_parts,
p_unzip_embeedeings => false,
p_encoding => p_encoding
);
dbms_lob.writeappend(l_temp, length('<pkg:xmlData>'), '<pkg:xmlData>');
dbms_lob.append(l_temp, l_bin);
dbms_lob.writeappend(l_temp, length('</pkg:xmlData>'), '</pkg:xmlData>');
--replace from l_startXMLData to l_endXMLData with l_bin
pak_blob_util.ClobReplace(p_FlatOPC, l_startXMLData, l_endXMLData - 1, l_temp);
dbms_lob.FreeTemporary(l_bin);
dbms_lob.FreeTemporary(l_temp);
end if;
end if;
end loop;
else
pak_xslt_log.WriteLog
( p_description => 'Invalid Format, Not Flat OPC'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.UnzipEmbeedings'
);
end if;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.UnzipEmbeedings'
, P_SQLERRM => sqlerrm
);
raise;
end UnzipEmbeedings;
/** Returns parts of p_FlatOPC separated with colons (:).
* @param p_FlatOPC Clob with Flat OPC.
* @return Parts separated with colons.
*/
function GetFlatOPCParts(
p_FlatOPC IN CLOB
) return varchar2
as
l_flatOPC SYS.XMLType;
l_pkg_parts DBMS_XMLDOM.DOMNODELIST;
l_pkg_part DBMS_XMLDOM.DOMNODE;
l_pkg_part_attrs DBMS_XMLDOM.DOMNAMEDNODEMAP;
l_filename varchar2(400);
l_ret varchar2(32000);
BEGIN
l_flatOPC := XMLType(p_FlatOPC);
if l_flatOPC.getRootElement() = 'package'
and l_flatOPC.getNamespace() = 'http://schemas.microsoft.com/office/2006/xmlPackage'
then
l_pkg_parts := DBMS_XMLDOM.GETCHILDNODES(DBMS_XMLDOM.MAKENODE(DBMS_XMLDOM.GETDOCUMENTELEMENT(DBMS_XMLDOM.NEWDOMDOCUMENT(l_flatOPC))));
for i in 0..DBMS_XMLDOM.GETLENGTH(l_pkg_parts)-1 loop
l_pkg_part := DBMS_XMLDOM.ITEM(l_pkg_parts, i);
l_pkg_part_attrs := DBMS_XMLDOM.GETATTRIBUTES(l_pkg_part);
l_filename := ltrim(DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'name')),'/');
if l_ret is null then
l_ret := l_filename;
else
l_ret := l_ret||':'||l_filename;
end if;
end loop;
else
pak_xslt_log.WriteLog
( p_description => 'Invalid Format, Not Flat OPC'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetFlatOPCParts'
);
end if;
return l_ret;
exception
when others then
pak_xslt_log.WriteLog
( p_description => 'Error'
, p_log_type => pak_xslt_log.g_error
, p_procedure => 'flat_OPC_pkg.GetFlatOPCParts'
, P_SQLERRM => sqlerrm
);
raise;
END GetFlatOPCParts;
/** Add p_second_FlatOPC to p_FlatOPC part by part and returns merged Flat OPC.
* @param p_FlatOPC Clob with first Flat OPC. First Flat OPC will be copied into returned CLOB as a whole.
* @param p_second_FlatOPC Clob with second Flat OPC. Parts that don't already exist in p_FlatOPC will be copied to returned CLOB.
* @param p_encoding Encoding (if left null UTF8 assumed).
* @return merged Flat OPC.
*/
function MergeFlatOPC(
p_FlatOPC IN CLOB,
p_second_FlatOPC IN CLOB,
p_encoding varchar2 default null
) return CLOB
as
l_ret CLOB;
l_second_flatOPC SYS.XMLType;
l_pkg_parts DBMS_XMLDOM.DOMNODELIST;
l_pkg_part DBMS_XMLDOM.DOMNODE;
l_pkg_part_attrs DBMS_XMLDOM.DOMNAMEDNODEMAP;
l_filename varchar2(400);
l_partsToTransform varchar2(400);
l_flatOPCNode DBMS_XMLDOM.DOMNODE;
l_flatOPCDoc DBMS_XMLDOM.DOMDOCUMENT;
BEGIN
l_flatOPCDoc := DBMS_XMLDOM.NEWDOMDOCUMENT(p_flatOPC);
l_flatOPCNode := DBMS_XMLDOM.GETLASTCHILD(DBMS_XMLDOM.MAKENODE(l_flatOPCDoc));
l_partsToTransform := GetFlatOPCParts(p_flatOPC);
l_second_flatOPC := XMLType(p_second_FlatOPC);
dbms_lob.CreateTemporary(l_ret, false);
if l_second_flatOPC.getRootElement() = 'package'
and l_second_flatOPC.getNamespace() = 'http://schemas.microsoft.com/office/2006/xmlPackage'
then
l_pkg_parts := DBMS_XMLDOM.GETCHILDNODES(DBMS_XMLDOM.MAKENODE(DBMS_XMLDOM.GETDOCUMENTELEMENT(DBMS_XMLDOM.NEWDOMDOCUMENT(l_second_flatOPC))));
for i in 0..DBMS_XMLDOM.GETLENGTH(l_pkg_parts)-1 loop
l_pkg_part := DBMS_XMLDOM.ITEM(l_pkg_parts, i);
l_pkg_part_attrs := DBMS_XMLDOM.GETATTRIBUTES(l_pkg_part);
l_filename := ltrim(DBMS_XMLDOM.GETNODEVALUE(DBMS_XMLDOM.GETNAMEDITEM(l_pkg_part_attrs, 'name')),'/');
pak_xslt_log.WriteLog
( p_description => 'Start processing file '||l_filename
, p_log_type => pak_xslt_log.g_information
, p_procedure => 'flat_OPC_pkg.MergeFlatOPC'
);