| 1 | This patch makes the UUIDs in the XMP header optional, depending on the
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| 2 | setting of the environment variable GS_GENERATE_UUIDS.
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| 3 |
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| 4 | If the environment variable GS_GENERATE_UUIDS is set to "0" or "no", it will
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| 5 | not write out the Document UUID field and also will write the Instance ID
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| 6 | field value as "".
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| 7 |
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| 8 | Upstream does not want to do this.
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| 9 |
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| 10 | See: https://bugs.ghostscript.com/show_bug.cgi?id=698208
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| 11 | diff --git a/devices/vector/gdevpdfe.c b/devices/vector/gdevpdfe.c
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| 12 | index f083f1e93..a19c64ac0 100644
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| 13 | |
| 14 | |
| 15 | @@ -624,7 +624,7 @@ pdf_write_document_metadata(gx_device_pdf *pdev, const byte digest[6])
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| 16 | return code;
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| 17 |
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| 18 | /* PDF/A XMP reference recommends setting UUID to empty. If not empty must be a URI */
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| 19 | - if (pdev->PDFA != 0)
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| 20 | + if (pdev->PDFA != 0 || (getenv("GS_GENERATE_UUIDS") && (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") == 0 || strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") == 0)))
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| 21 | instance_uuid[0] = 0x00;
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| 22 |
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| 23 | cre_date_time_len = pdf_get_docinfo_item(pdev, "/CreationDate", cre_date_time, sizeof(cre_date_time));
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| 24 | @@ -730,14 +730,17 @@ pdf_write_document_metadata(gx_device_pdf *pdev, const byte digest[6])
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| 25 | pdf_xml_tag_close(s, "rdf:Description");
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| 26 | pdf_xml_newline(s);
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| 27 |
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| 28 | - pdf_xml_tag_open_beg(s, "rdf:Description");
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| 29 | - pdf_xml_copy(s, " rdf:about=\"\"");
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| 30 | - pdf_xml_attribute_name(s, "xmlns:xapMM");
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| 31 | - pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/mm/");
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| 32 | - pdf_xml_attribute_name(s, "xapMM:DocumentID");
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| 33 | - pdf_xml_attribute_value(s, document_uuid);
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| 34 | - pdf_xml_tag_end_empty(s);
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| 35 | - pdf_xml_newline(s);
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| 36 | + if (!getenv("GS_GENERATE_UUIDS") || (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 && strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
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| 37 | + {
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| 38 | + pdf_xml_tag_open_beg(s, "rdf:Description");
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| 39 | + pdf_xml_copy(s, " rdf:about=\"\"");
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| 40 | + pdf_xml_attribute_name(s, "xmlns:xapMM");
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| 41 | + pdf_xml_attribute_value(s, "http://ns.adobe.com/xap/1.0/mm/");
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| 42 | + pdf_xml_attribute_name(s, "xapMM:DocumentID");
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| 43 | + pdf_xml_attribute_value(s, document_uuid);
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| 44 | + pdf_xml_tag_end_empty(s);
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| 45 | + pdf_xml_newline(s);
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| 46 | + }
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| 47 |
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| 48 | pdf_xml_tag_open_beg(s, "rdf:Description");
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| 49 | pdf_xml_copy(s, " rdf:about=\"\"");
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