4 Source: Provozní řád ISDS, version 2009-10-30, Page 13
5 Source: Webové služby ISDS pro manipulaci s datovými zprávami, version 2.11
6 (2010-05-20) [DataMessage_ws.pdf]
7 Source: Registration of media type FO and ZFO
8 <http://www.alvestrand.no/pipermail/ietf-types/2008-June/002037.html>
9 Source: O2. Datové schránky: Informace pro dodavatele aplikací, version
12 Message ::= Envelope, Content
14 Message format is defined in Appendix 1, file dmBaseTypes.xsd.
16 Content ::= (Document)+
18 Content involves one or more attachments (= Documents). Allowed Document
19 formats are defined in Appendix 3 of Vyhláška o stanovení podrobností užívání
22 Currently (2009-11-18) allowed formats are (quotation follows):
24 – pdf (Portable Document Format)
25 – PDF/A (Portable Document Format for the Long-term Archiving)
26 – xml (Extensible Markup Language Document); must be valid against
27 free available XML Schema published by recipient
28 – fo/zfo (602XML Filler dokument)
29 – html/htm (Hypertext Markup Language Document)
30 – odt (Open Document Text)
31 – ods (Open Document Spreadsheet)
32 – odp (Open Document Presentation)
34 – rtf (Rich Text Format)
35 – doc (MS Word Document)
36 – xls (MS Excel Spreadsheet)
37 – ppt (MS PowerPoint Presentation)
38 – jpg/jpeg/jfif (Joint Photographic Experts Group File Interchange Format)
39 – png (Portable Network Graphics)
40 – tiff (Tagged Image File Format)
41 – gif (Graphics Interchange Format)
42 – mpeg1/mpeg2 (Moving Picture Experts Group Phase 1 / Phase 2)
43 – wav (Waveform Audio Format)
44 – mp2/mp3 (MPEG-1 Audio Layer 2 / Layer 3)
45 – isdoc/isdocx (Information System Document) version 5.2 or higher
47 Document format declaration inside Document and conformance checks change
48 during time. XML Schemas provide attribute for Document MIME type and Document
51 Attribute dmMimeType must present, but may be empty, may contain file name
52 extension, or may contain official MIME type. If MIME type is declared, ISDS
53 checks Document content for conformance to the MIME type.
55 There is MIME type blacklist: application/x-zip-compressed,
56 application/x-msdownload.
58 Attribute dmFileDescr (so called annotation) must present and must contain
59 file name of the Document. Even if dmMimeType exists, ISDS uses THIS attribute
60 to detect Document format (according file name extension) and checks content
61 for format conformance.
63 There is list of allowed file name extensions: pdf, xml, fo, zfo, html, htm,
64 odt, ods, odp, txt, rtf, doc, xls, ppt, jpg, jpeg, jfif, png, tiff, gif, mpeg1
65 mpeg2, wav, mp2, mp3, isdoc, isdocx, cer, crt, der, pk7, p7b, p7c, p7f, p7m,
66 p7s, tst (time stamp).
68 Non-normative: File name extension to MIME type map:
70 Extensions MIME type Description
71 -------------------------------------------------------------------------------
72 pdf application/pdf Portable Document Format
73 xml application/xml Extensible MarkUp Language
74 fo application/vnd.software602.filler.xml+form
75 602XML form (uncompressed)
76 zfo application/vnd.software602.filler.xml+zip+form
77 602XML form (zipped XML form with XSL-FO styles)
78 html, htm text/html Hyper Text MarkUp Language
79 odt application/vnd.oasis.opendocument.text
80 Open Document Format Text
81 ods application/vnd.oasis.opendocument.spreadsheet
82 Open Document Format Spreadsheet
83 odp application/vnd.oasis.opendocument.presentation
84 Open Document Format Presentation
85 txt text/plain Plain text (no charset nor encoding signalled)
86 rtf application/rtf Rich Text Format
87 doc application/msword Microsoft Word Document
88 xls application/vnd.ms-excel
89 Microsoft Excel Document
90 ppt application/vnd.ms-powerpoint
91 Microsoft PowerPoint Document
93 image/jpeg JFIF/JPEG image
94 png image/png Portable Network Graphics
95 tiff image/tiff Tag Image File Format
96 gif image/gif Graphics Interchange Format
97 mpeg1 video/mpeg Motion Joint Picture Expert Group Version 1
98 mpeg2 video/mpeg2 Motion Joint Picture Expert Group Version 2
99 wav audio/x-wav RIFF Waveform Audio File Format
100 mp2 audio/mpeg MPEG-1 Audio Layer II
101 mp3 audio/mpeg MPEG-1 Audio Layer III
103 Information System Document (payment invoice)
105 X.509 Certificate (different serialization)
106 pk7, p7b, p7c, p7f, p7m, p7s
107 Crypto Message Syntax (different serialization)
108 tst Time Stamp Token (RFC 3161)
111 Document ::= Binary_Document | XML_Document
113 Document is Base64 encoded binary format or XML.
115 There exist special Document type, ESS format, that can exist in Content only
118 Note: ESS format is special XML language designed as interface between
119 Electronic Document Systems (ESS). It's defined in Appendix 4 of Provozní řád
122 Message with `malicious code' will be refused by ISDS.
124 Maximal total size of Documents in a Message is 10 MB. Binary document size is
125 size before encoding into Base64, XML document size is size in bytes as is
126 serialized inside SOAP request.
128 A Message can be addressed to 50 recipients at maximum.
130 Life time of Message:
132 – 90 days for delivered message, 100 days for system message
133 – unlimited for delivered through fiction messages, however they can be
134 moved to off-line storage after 90 days. User can request to move the
135 Message back into his box (off-line only currently).
137 Deleted messages are stored off-line as Envelope only without Content. Since
138 2010-06-01, some services has access to off-line stored envelopes
139 (Get(Signed)DeliveryInfo, MessageEnvelopeDownload, VerifyMessage,
140 AuthenticateMessage).
142 Note: Delivery through fiction is currently defined as new unread for more
143 than 10 days after delivery.
149 Embedded digital signatures are PKCS#7 to avoid expensive XML canonicalization.
155 Message checksum is a hashed bit stream of part of a message. Exact message
156 part to hash must preserve physical XML serialization. The hash value is
157 carried inside a message, it's stored in ISDS and it's used as a input form
160 Currently SHA-1 and SHA-256 algortihms are defined. They are identified by
161 dmHash/@algorithm attribute. Algorithm name in attribute value contains hyphen
168 There exists special message type initiated by ISDS (i.e. from system, not from
169 other box). Such message has reserved from-box `aaaaaaa' (7 × `a') value and
170 sender type `0' and it contains always document of type HTML. There are
171 following cases defined:
173 1 Outgoing message contained malicious code
174 2 You, administrator, deleted other user
175 3 Outgoing message could not been delivered because recipient box had been
177 4 Outgoing commercial message has not been accepted by recipient
178 5 User has been added to the box
179 6 User permissions has been changed
185 Users can allow commercial message receiving explicitly. Commercial message
186 are not considered as accepted by recipient automatically (in opposite to
187 standard messages), recipient must call ConfirmDelivery to move message from
188 state Delivered (4) to state Received (6).
190 User can request to assign permission to send commercial messages. Permission
191 can be assigned by Czech Post. Commercial recipient can not be searched. Sender
192 must know exact box ID.
194 Incomming commercial message can be recognised by @dmType="K" in message
195 envelope. If @dmType is "V" or attribute is missing, message is so called
196 public (i.e. standard noncommercial with acceptance time outs etc.).
198 How does ISDS determine (non-)commercial status of outgoing message?
199 The decision is based on sender and recipient box type, commercial
200 sending/receiving permission and OVM message flag:
202 All messages are public except following combinations when message is
203 considered as commercial:
206 Gross type Commercial sending Gross type Commercial receiving OVM flag
207 ----------------------------------------------------------------------------
208 non-OVM allowed non-OVM allowed any
209 any any non-OVM allowed false
216 1 Message has been put into ISDS
217 2 Message stamped by TSA
218 3 Message included viruses, infected document has been removed
219 4 Message delivered (dmDeliveryTime stored)
220 5 Message delivered through fiction (dmAcceptanceTime stored)
221 6 Message delivered by user log-in or user explicit request (in case of
222 commercial message) (dmAcceptanceTime stored)
223 7 Message has been read by user
224 8 Message could not been delivered (e.g. recipient box has been made
225 inaccessible meantime)
226 9 Message content deleted (thus can not be obtained on-line)
227 10 Message stored into data safe (this is optional commercial service)