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| author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
|---|---|---|
| committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
| commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
| tree | b141608096b73163182764c25b895d3df4b2c182 /core/src/fpdfdoc/doc_metadata.cpp | |
| parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
| download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz | |
Initial commit.
Diffstat (limited to 'core/src/fpdfdoc/doc_metadata.cpp')
| -rw-r--r-- | core/src/fpdfdoc/doc_metadata.cpp | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/core/src/fpdfdoc/doc_metadata.cpp b/core/src/fpdfdoc/doc_metadata.cpp new file mode 100644 index 0000000000..e3ac9e3779 --- /dev/null +++ b/core/src/fpdfdoc/doc_metadata.cpp @@ -0,0 +1,152 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../include/fpdfdoc/fpdf_doc.h"
+#include "../../include/fxcrt/fx_xml.h"
+typedef struct _PDFDOC_METADATA {
+ CPDF_Document *m_pDoc;
+ CXML_Element *m_pXmlElmnt;
+ CXML_Element *m_pElmntRdf;
+ CFX_CMapByteStringToPtr *m_pStringMap;
+} PDFDOC_METADATA, * PDFDOC_LPMETADATA;
+typedef PDFDOC_METADATA const * PDFDOC_LPCMETADATA;
+const FX_LPCSTR gs_FPDFDOC_Metadata_Titles[] = {
+ "Title", "title",
+ "Subject", "description",
+ "Author", "creator",
+ "Keywords", "Keywords",
+ "Producer", "Producer",
+ "Creator", "CreatorTool",
+ "CreationDate", "CreateDate",
+ "ModDate", "ModifyDate",
+ "MetadataDate", "MetadataDate"
+};
+CPDF_Metadata::CPDF_Metadata()
+{
+ m_pData = FX_Alloc(PDFDOC_METADATA, 1);
+ FXSYS_memset32(m_pData, 0, sizeof(PDFDOC_METADATA));
+ CFX_CMapByteStringToPtr *&pStringMap = ((PDFDOC_LPMETADATA)m_pData)->m_pStringMap;
+ pStringMap = FX_NEW(CFX_CMapByteStringToPtr);
+ if (pStringMap != NULL) {
+ CFX_ByteString bstr;
+ for (int i = 0; i < 18; i += 2) {
+ bstr = gs_FPDFDOC_Metadata_Titles[i];
+ pStringMap->AddValue(bstr, (void*)gs_FPDFDOC_Metadata_Titles[i + 1]);
+ }
+ }
+}
+CPDF_Metadata::~CPDF_Metadata()
+{
+ FXSYS_assert(m_pData != NULL);
+ CXML_Element *&p = ((PDFDOC_LPMETADATA)m_pData)->m_pXmlElmnt;
+ if (p) {
+ delete p;
+ }
+ CFX_CMapByteStringToPtr *pStringMap = ((PDFDOC_LPMETADATA)m_pData)->m_pStringMap;
+ if (pStringMap) {
+ pStringMap->RemoveAll();
+ FX_Free(pStringMap);
+ }
+ FX_Free(m_pData);
+}
+void CPDF_Metadata::LoadDoc(CPDF_Document *pDoc)
+{
+ FXSYS_assert(pDoc != NULL);
+ ((PDFDOC_LPMETADATA)m_pData)->m_pDoc = pDoc;
+ CPDF_Dictionary *pRoot = pDoc->GetRoot();
+ CPDF_Stream *pStream = pRoot->GetStream(FX_BSTRC("Metadata"));
+ if (!pStream) {
+ return;
+ }
+ CPDF_StreamAcc acc;
+ acc.LoadAllData(pStream, FALSE);
+ int size = acc.GetSize();
+ FX_LPCBYTE pBuf = acc.GetData();
+ CXML_Element *&pXmlElmnt = ((PDFDOC_LPMETADATA)m_pData)->m_pXmlElmnt;
+ pXmlElmnt = CXML_Element::Parse(pBuf, size);
+ if (!pXmlElmnt) {
+ return;
+ }
+ CXML_Element *&pElmntRdf = ((PDFDOC_LPMETADATA)m_pData)->m_pElmntRdf;
+ if (pXmlElmnt->GetTagName() == FX_BSTRC("RDF")) {
+ pElmntRdf = pXmlElmnt;
+ } else {
+ pElmntRdf = pXmlElmnt->GetElement(NULL, FX_BSTRC("RDF"));
+ }
+}
+FX_INT32 CPDF_Metadata::GetString(FX_BSTR bsItem, CFX_WideString &wsStr)
+{
+ if (!((PDFDOC_LPMETADATA)m_pData)->m_pXmlElmnt) {
+ return -1;
+ }
+ if (!((PDFDOC_LPMETADATA)m_pData)->m_pStringMap) {
+ return -1;
+ }
+ void *szTag;
+ if (!((PDFDOC_LPMETADATA)m_pData)->m_pStringMap->Lookup(bsItem, szTag)) {
+ return -1;
+ }
+ CFX_ByteString bsTag = (FX_LPCSTR)szTag;
+ wsStr = L"";
+ CXML_Element *pElmntRdf = ((PDFDOC_LPMETADATA)m_pData)->m_pElmntRdf;
+ if (!pElmntRdf) {
+ return -1;
+ }
+ int nChild = pElmntRdf->CountChildren();
+ for (int i = 0; i < nChild; i++) {
+ CXML_Element *pTag = pElmntRdf->GetElement(NULL, FX_BSTRC("Description"), i);
+ if (!pTag) {
+ continue;
+ }
+ if (bsItem == FX_BSTRC("Title") || bsItem == FX_BSTRC("Subject")) {
+ CXML_Element *pElmnt = pTag->GetElement(NULL, bsTag);
+ if (!pElmnt) {
+ continue;
+ }
+ pElmnt = pElmnt->GetElement(NULL, FX_BSTRC("Alt"));
+ if (!pElmnt) {
+ continue;
+ }
+ pElmnt = pElmnt->GetElement(NULL, FX_BSTRC("li"));
+ if (!pElmnt) {
+ continue;
+ }
+ wsStr = pElmnt->GetContent(0);
+ return wsStr.GetLength();
+ } else if (bsItem == FX_BSTRC("Author")) {
+ CXML_Element *pElmnt = pTag->GetElement(NULL, bsTag);
+ if (!pElmnt) {
+ continue;
+ }
+ pElmnt = pElmnt->GetElement(NULL, FX_BSTRC("Seq"));
+ if (!pElmnt) {
+ continue;
+ }
+ pElmnt = pElmnt->GetElement(NULL, FX_BSTRC("li"));
+ if (!pElmnt) {
+ continue;
+ }
+ wsStr = pElmnt->GetContent(0);
+ return wsStr.GetLength();
+ } else {
+ CXML_Element *pElmnt = pTag->GetElement(NULL, bsTag);
+ if (!pElmnt) {
+ continue;
+ }
+ wsStr = pElmnt->GetContent(0);
+ return wsStr.GetLength();
+ }
+ }
+ return -1;
+}
+CXML_Element* CPDF_Metadata::GetRoot() const
+{
+ return ((PDFDOC_LPMETADATA)m_pData)->m_pXmlElmnt;
+}
+CXML_Element* CPDF_Metadata::GetRDF() const
+{
+ return ((PDFDOC_LPMETADATA)m_pData)->m_pElmntRdf;
+}
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