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authorChristian Grothoff <christian@grothoff.org>2017-03-20 14:32:09 +0100
committerChristian Grothoff <christian@grothoff.org>2017-03-20 14:32:09 +0100
commite72d0ec3ff07648d4f5d261fe4cab9a3a51f99df (patch)
tree07198352e44bb0a7c022ba5d0cc5588dbf8cad5d
parente4b209c72488e8b1a01849636bf73af2bb3a7c48 (diff)
downloadexchange-e72d0ec3ff07648d4f5d261fe4cab9a3a51f99df.tar.gz
exchange-e72d0ec3ff07648d4f5d261fe4cab9a3a51f99df.tar.bz2
exchange-e72d0ec3ff07648d4f5d261fe4cab9a3a51f99df.zip
initial import of operator manual (needs a lot of work)
-rw-r--r--doc/.gitignore19
-rw-r--r--doc/Makefile.am12
-rw-r--r--doc/agpl.texi698
-rwxr-xr-xdoc/exchange-db-generate.sh3
-rw-r--r--doc/exchange-db.pngbin0 -> 198095 bytes
-rw-r--r--doc/fdl-1.3.texi506
-rw-r--r--doc/taler-exchange.texi869
7 files changed, 2104 insertions, 3 deletions
diff --git a/doc/.gitignore b/doc/.gitignore
index 8fd4c0911..fd4b2a1a8 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -8,5 +8,20 @@
*.vrb
*.nav
*/auto
-api-sphinx/_build
-api-sphinx/*.html
+version.texi
+texinfo.tex
+stamp-vti
+taler-exchange.info
+mdate-sh
+taler-exchange.vr
+taler-exchange.tp
+taler-exchange.toc
+taler-exchange.pg
+taler-exchange.pdf
+taler-exchange.log
+taler-exchange.ky
+taler-exchange.info
+taler-exchange.html
+taler-exchange.fn
+taler-exchange.cp
+taler-exchange.aux \ No newline at end of file
diff --git a/doc/Makefile.am b/doc/Makefile.am
index f55160993..7e9401a09 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -15,6 +15,16 @@ man_MANS = \
taler-exchange-wire.1 \
taler.conf.5
+DISTCLEANFILES = \
+ taler-exchange.cps \
+ taler-exchange.dvi
+
+info_TEXINFOS = \
+ taler-exchange.texi
+extra_TEXINFOS = \
+ fdl-1.3.texi \
+ agpl.texi
EXTRA_DIST = \
coding-style.txt \
- ${man_MANS}
+ $(man_MANS) \
+ $(extra_TEXINFOS)
diff --git a/doc/agpl.texi b/doc/agpl.texi
new file mode 100644
index 000000000..e6ee662e3
--- /dev/null
+++ b/doc/agpl.texi
@@ -0,0 +1,698 @@
+@c The GNU Affero General Public License.
+@center Version 3, 19 November 2007
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+@end display
+
+@heading Preamble
+
+The GNU Affero General Public License is a free, copyleft license
+for software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+The licenses for most software and other practical works are
+designed to take away your freedom to share and change the works. By
+contrast, our General Public Licenses are intended to guarantee your
+freedom to share and change all versions of a program--to make sure it
+remains free software for all its users.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+@heading TERMS AND CONDITIONS
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+@enumerate 0
+@item Definitions.
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+@item
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+@item Additional Terms.
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+@item
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+A patent license is ``discriminatory'' if it does not include within the
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+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
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+
+@item No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
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+to terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+@item Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users interacting
+with it remotely through a computer network (if your version supports such
+interaction) an opportunity to receive the Corresponding Source of your
+version by providing access to the Corresponding Source from a network
+server at no charge, through some standard or customary means of
+facilitating copying of software. This Corresponding Source shall include
+the Corresponding Source for any work covered by version 3 of the GNU
+General Public License that is incorporated pursuant to the following
+paragraph.
+
+Notwithstanding any other provision of this License, you have permission to
+link or combine any covered work with a work licensed under version 3 of
+the GNU General Public License into a single combined work, and to convey
+the resulting work. The terms of this License will continue to apply to
+the part which is the covered work, but the work with which it is combined
+will remain governed by version 3 of the GNU General Public License.
+
+@item Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU Affero General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU Affero General Public
+License ``or any later version'' applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If
+the Program does not specify a version number of the GNU Affero General
+Public License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU Affero General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+@item Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+@item Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+@item Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+@end enumerate
+
+@heading END OF TERMS AND CONDITIONS
+
+@heading How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the ``copyright'' line and a pointer to where the full notice is found.
+
+@smallexample
+@var{one line to give the program's name and a brief idea of what it does.}
+Copyright (C) @var{year} @var{name of author}
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see @url{http://www.gnu.org/licenses/}.
+@end smallexample
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a ``Source'' link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a ``copyright disclaimer'' for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+@url{http://www.gnu.org/licenses/}.
diff --git a/doc/exchange-db-generate.sh b/doc/exchange-db-generate.sh
new file mode 100755
index 000000000..b296e0c9d
--- /dev/null
+++ b/doc/exchange-db-generate.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+taler-exchange-dbinit -r
+java -jar schemaSpy_5.0.0.jar -t pgsql -db taler -o taler -host localhost -dp /usr/share/java/postgresql-jdbc3-9.2.jar -u grothoff -p test -s public -hq
diff --git a/doc/exchange-db.png b/doc/exchange-db.png
new file mode 100644
index 000000000..ddc255911
--- /dev/null
+++ b/doc/exchange-db.png
Binary files differ
diff --git a/doc/fdl-1.3.texi b/doc/fdl-1.3.texi
new file mode 100644
index 000000000..8805f1a47
--- /dev/null
+++ b/doc/fdl-1.3.texi
@@ -0,0 +1,506 @@
+@c The GNU Free Documentation License.
+@center Version 1.3, 3 November 2008
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
+@uref{http://fsf.org/}
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@end display
+
+@enumerate 0
+@item
+PREAMBLE
+
+The purpose of this License is to make a manual, textbook, or other
+functional and useful document @dfn{free} in the sense of freedom: to
+assure everyone the effective freedom to copy and redistribute it,
+with or without modifying it, either commercially or noncommercially.
+Secondarily, this License preserves for the author and publisher a way
+to get credit for their work, while not being considered responsible
+for modifications made by others.
+
+This License is a kind of ``copyleft'', which means that derivative
+works of the document must themselves be free in the same sense. It
+complements the GNU General Public License, which is a copyleft
+license designed for free software.
+
+We have designed this License in order to use it for manuals for free
+software, because free software needs free documentation: a free
+program should come with manuals providing the same freedoms that the
+software does. But this License is not limited to software manuals;
+it can be used for any textual work, regardless of subject matter or
+whether it is published as a printed book. We recommend this License
+principally for works whose purpose is instruction or reference.
+
+@item
+APPLICABILITY AND DEFINITIONS
+
+This License applies to any manual or other work, in any medium, that
+contains a notice placed by the copyright holder saying it can be
+distributed under the terms of this License. Such a notice grants a
+world-wide, royalty-free license, unlimited in duration, to use that
+work under the conditions stated herein. The ``Document'', below,
+refers to any such manual or work. Any member of the public is a
+licensee, and is addressed as ``you''. You accept the license if you
+copy, modify or distribute the work in a way requiring permission
+under copyright law.
+
+A ``Modified Version'' of the Document means any work containing the
+Document or a portion of it, either copied verbatim, or with
+modifications and/or translated into another language.
+
+A ``Secondary Section'' is a named appendix or a front-matter section
+of the Document that deals exclusively with the relationship of the
+publishers or authors of the Document to the Document's overall
+subject (or to related matters) and contains nothing that could fall
+directly within that overall subject. (Thus, if the Document is in
+part a textbook of mathematics, a Secondary Section may not explain
+any mathematics.) The relationship could be a matter of historical
+connection with the subject or with related matters, or of legal,
+commercial, philosophical, ethical or political position regarding
+them.
+
+The ``Invariant Sections'' are certain Secondary Sections whose titles
+are designated, as being those of Invariant Sections, in the notice
+that says that the Document is released under this License. If a
+section does not fit the above definition of Secondary then it is not
+allowed to be designated as Invariant. The Document may contain zero
+Invariant Sections. If the Document does not identify any Invariant
+Sections then there are none.
+
+The ``Cover Texts'' are certain short passages of text that are listed,
+as Front-Cover Texts or Back-Cover Texts, in the notice that says that
+the Document is released under this License. A Front-Cover Text may
+be at most 5 words, and a Back-Cover Text may be at most 25 words.
+
+A ``Transparent'' copy of the Document means a machine-readable copy,
+represented in a format whose specification is available to the
+general public, that is suitable for revising the document
+straightforwardly with generic text editors or (for images composed of
+pixels) generic paint programs or (for drawings) some widely available
+drawing editor, and that is suitable for input to text formatters or
+for automatic translation to a variety of formats suitable for input
+to text formatters. A copy made in an otherwise Transparent file
+format whose markup, or absence of markup, has been arranged to thwart
+or discourage subsequent modification by readers is not Transparent.
+An image format is not Transparent if used for any substantial amount
+of text. A copy that is not ``Transparent'' is called ``Opaque''.
+
+Examples of suitable formats for Transparent copies include plain
+@sc{ascii} without markup, Texinfo input format, La@TeX{} input
+format, @acronym{SGML} or @acronym{XML} using a publicly available
+@acronym{DTD}, and standard-conforming simple @acronym{HTML},
+PostScript or @acronym{PDF} designed for human modification. Examples
+of transparent image formats include @acronym{PNG}, @acronym{XCF} and
+@acronym{JPG}. Opaque formats include proprietary formats that can be
+read and edited only by proprietary word processors, @acronym{SGML} or
+@acronym{XML} for which the @acronym{DTD} and/or processing tools are
+not generally available, and the machine-generated @acronym{HTML},
+PostScript or @acronym{PDF} produced by some word processors for
+output purposes only.
+
+The ``Title Page'' means, for a printed book, the title page itself,
+plus such following pages as are needed to hold, legibly, the material
+this License requires to appear in the title page. For works in
+formats which do not have any title page as such, ``Title Page'' means
+the text near the most prominent appearance of the work's title,
+preceding the beginning of the body of the text.
+
+The ``publisher'' means any person or entity that distributes copies
+of the Document to the public.
+
+A section ``Entitled XYZ'' means a named subunit of the Document whose
+title either is precisely XYZ or contains XYZ in parentheses following
+text that translates XYZ in another language. (Here XYZ stands for a
+specific section name mentioned below, such as ``Acknowledgements'',
+``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title''
+of such a section when you modify the Document means that it remains a
+section ``Entitled XYZ'' according to this definition.
+
+The Document may include Warranty Disclaimers next to the notice which
+states that this License applies to the Document. These Warranty
+Disclaimers are considered to be included by reference in this
+License, but only as regards disclaiming warranties: any other
+implication that these Warranty Disclaimers may have is void and has
+no effect on the meaning of this License.
+
+@item
+VERBATIM COPYING
+
+You may copy and distribute the Document in any medium, either
+commercially or noncommercially, provided that this License, the
+copyright notices, and the license notice saying this License applies
+to the Document are reproduced in all copies, and that you add no other
+conditions whatsoever to those of this License. You may not use
+technical measures to obstruct or control the reading or further
+copying of the copies you make or distribute. However, you may accept
+compensation in exchange for copies. If you distribute a large enough
+number of copies you must also follow the conditions in section 3.
+
+You may also lend copies, under the same conditions stated above, and
+you may publicly display copies.
+
+@item
+COPYING IN QUANTITY
+
+If you publish printed copies (or copies in media that commonly have
+printed covers) of the Document, numbering more than 100, and the
+Document's license notice requires Cover Texts, you must enclose the
+copies in covers that carry, clearly and legibly, all these Cover
+Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
+the back cover. Both covers must also clearly and legibly identify
+you as the publisher of these copies. The front cover must present
+the full title with all words of the title equally prominent and
+visible. You may add other material on the covers in addition.
+Copying with changes limited to the covers, as long as they preserve
+the title of the Document and satisfy these conditions, can be treated
+as verbatim copying in other respects.
+
+If the required texts for either cover are too voluminous to fit
+legibly, you should put the first ones listed (as many as fit
+reasonably) on the actual cover, and continue the rest onto adjacent
+pages.
+
+If you publish or distribute Opaque copies of the Document numbering
+more than 100, you must either include a machine-readable Transparent
+copy along with each Opaque copy, or state in or with each Opaque copy
+a computer-network location from which the general network-using
+public has access to download using public-standard network protocols
+a complete Transparent copy of the Document, free of added material.
+If you use the latter option, you must take reasonably prudent steps,
+when you begin distribution of Opaque copies in quantity, to ensure
+that this Transparent copy will remain thus accessible at the stated
+location until at least one year after the last time you distribute an
+Opaque copy (directly or through your agents or retailers) of that
+edition to the public.
+
+It is requested, but not required, that you contact the authors of the
+Document well before redistributing any large number of copies, to give
+them a chance to provide you with an updated version of the Document.
+
+@item
+MODIFICATIONS
+
+You may copy and distribute a Modified Version of the Document under
+the conditions of sections 2 and 3 above, provided that you release
+the Modified Version under precisely this License, with the Modified
+Version filling the role of the Document, thus licensing distribution
+and modification of the Modified Version to whoever possesses a copy
+of it. In addition, you must do these things in the Modified Version:
+
+@enumerate A
+@item
+Use in the Title Page (and on the covers, if any) a title distinct
+from that of the Document, and from those of previous versions
+(which should, if there were any, be listed in the History section
+of the Document). You may use the same title as a previous version
+if the original publisher of that version gives permission.
+
+@item
+List on the Title Page, as authors, one or more persons or entities
+responsible for authorship of the modifications in the Modified
+Version, together with at least five of the principal authors of the
+Document (all of its principal authors, if it has fewer than five),
+unless they release you from this requirement.
+
+@item
+State on the Title page the name of the publisher of the
+Modified Version, as the publisher.
+
+@item
+Preserve all the copyright notices of the Document.
+
+@item
+Add an appropriate copyright notice for your modifications
+adjacent to the other copyright notices.
+
+@item
+Include, immediately after the copyright notices, a license notice
+giving the public permission to use the Modified Version under the
+terms of this License, in the form shown in the Addendum below.
+
+@item
+Preserve in that license notice the full lists of Invariant Sections
+and required Cover Texts given in the Document's license notice.
+
+@item
+Include an unaltered copy of this License.
+
+@item
+Preserve the section Entitled ``History'', Preserve its Title, and add
+to it an item stating at least the title, year, new authors, and
+publisher of the Modified Version as given on the Title Page. If
+there is no section Entitled ``History'' in the Document, create one
+stating the title, year, authors, and publisher of the Document as
+given on its Title Page, then add an item describing the Modified
+Version as stated in the previous sentence.
+
+@item
+Preserve the network location, if any, given in the Document for
+public access to a Transparent copy of the Document, and likewise
+the network locations given in the Document for previous versions
+it was based on. These may be placed in the ``History'' section.
+You may omit a network location for a work that was published at
+least four years before the Document itself, or if the original
+publisher of the version it refers to gives permission.
+
+@item
+For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
+the Title of the section, and preserve in the section all the
+substance and tone of each of the contributor acknowledgements and/or
+dedications given therein.
+
+@item
+Preserve all the Invariant Sections of the Document,
+unaltered in their text and in their titles. Section numbers
+or the equivalent are not considered part of the section titles.
+
+@item
+Delete any section Entitled ``Endorsements''. Such a section
+may not be included in the Modified Version.
+
+@item
+Do not retitle any existing section to be Entitled ``Endorsements'' or
+to conflict in title with any Invariant Section.
+
+@item
+Preserve any Warranty Disclaimers.
+@end enumerate
+
+If the Modified Version includes new front-matter sections or
+appendices that qualify as Secondary Sections and contain no material
+copied from the Document, you may at your option designate some or all
+of these sections as invariant. To do this, add their titles to the
+list of Invariant Sections in the Modified Version's license notice.
+These titles must be distinct from any other section titles.
+
+You may add a section Entitled ``Endorsements'', provided it contains
+nothing but endorsements of your Modified Version by various
+parties---for example, statements of peer review or that the text has
+been approved by an organization as the authoritative definition of a
+standard.
+
+You may add a passage of up to five words as a Front-Cover Text, and a
+passage of up to 25 words as a Back-Cover Text, to the end of the list
+of Cover Texts in the Modified Version. Only one passage of
+Front-Cover Text and one of Back-Cover Text may be added by (or
+through arrangements made by) any one entity. If the Document already
+includes a cover text for the same cover, previously added by you or
+by arrangement made by the same entity you are acting on behalf of,
+you may not add another; but you may replace the old one, on explicit
+permission from the previous publisher that added the old one.
+
+The author(s) and publisher(s) of the Document do not by this License
+give permission to use their names for publicity for or to assert or
+imply endorsement of any Modified Version.
+
+@item
+COMBINING DOCUMENTS
+
+You may combine the Document with other documents released under this
+License, under the terms defined in section 4 above for modified
+versions, provided that you include in the combination all of the
+Invariant Sections of all of the original documents, unmodified, and
+list them all as Invariant Sections of your combined work in its
+license notice, and that you preserve all their Warranty Disclaimers.
+
+The combined work need only contain one copy of this License, and
+multiple identical Invariant Sections may be replaced with a single
+copy. If there are multiple Invariant Sections with the same name but
+different contents, make the title of each such section unique by
+adding at the end of it, in parentheses, the name of the original
+author or publisher of that section if known, or else a unique number.
+Make the same adjustment to the section titles in the list of
+Invariant Sections in the license notice of the combined work.
+
+In the combination, you must combine any sections Entitled ``History''
+in the various original documents, forming one section Entitled
+``History''; likewise combine any sections Entitled ``Acknowledgements'',
+and any sections Entitled ``Dedications''. You must delete all
+sections Entitled ``Endorsements.''
+
+@item
+COLLECTIONS OF DOCUMENTS
+
+You may make a collection consisting of the Document and other documents
+released under this License, and replace the individual copies of this
+License in the various documents with a single copy that is included in
+the collection, provided that you follow the rules of this License for
+verbatim copying of each of the documents in all other respects.
+
+You may extract a single document from such a collection, and distribute
+it individually under this License, provided you insert a copy of this
+License into the extracted document, and follow this License in all
+other respects regarding verbatim copying of that document.
+
+@item
+AGGREGATION WITH INDEPENDENT WORKS
+
+A compilation of the Document or its derivatives with other separate
+and independent documents or works, in or on a volume of a storage or
+distribution medium, is called an ``aggregate'' if the copyright
+resulting from the compilation is not used to limit the legal rights
+of the compilation's users beyond what the individual works permit.
+When the Document is included in an aggregate, this License does not
+apply to the other works in the aggregate which are not themselves
+derivative works of the Document.
+
+If the Cover Text requirement of section 3 is applicable to these
+copies of the Document, then if the Document is less than one half of
+the entire aggregate, the Document's Cover Texts may be placed on
+covers that bracket the Document within the aggregate, or the
+electronic equivalent of covers if the Document is in electronic form.
+Otherwise they must appear on printed covers that bracket the whole
+aggregate.
+
+@item
+TRANSLATION
+
+Translation is considered a kind of modification, so you may
+distribute translations of the Document under the terms of section 4.
+Replacing Invariant Sections with translations requires special
+permission from their copyright holders, but you may include
+translations of some or all Invariant Sections in addition to the
+original versions of these Invariant Sections. You may include a
+translation of this License, and all the license notices in the
+Document, and any Warranty Disclaimers, provided that you also include
+the original English version of this License and the original versions
+of those notices and disclaimers. In case of a disagreement between
+the translation and the original version of this License or a notice
+or disclaimer, the original version will prevail.
+
+If a section in the Document is Entitled ``Acknowledgements'',
+``Dedications'', or ``History'', the requirement (section 4) to Preserve
+its Title (section 1) will typically require changing the actual
+title.
+
+@item
+TERMINATION
+
+You may not copy, modify, sublicense, or distribute the Document
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense, or distribute it is void, and
+will automatically terminate your rights under this License.
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, receipt of a copy of some or all of the same material does
+not give you any rights to use it.
+
+@item
+FUTURE REVISIONS OF THIS LICENSE
+
+The Free Software Foundation may publish new, revised versions
+of the GNU Free Documentation License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns. See
+@uref{http://www.gnu.org/copyleft/}.
+
+Each version of the License is given a distinguishing version number.
+If the Document specifies that a particular numbered version of this
+License ``or any later version'' applies to it, you have the option of
+following the terms and conditions either of that specified version or
+of any later version that has been published (not as a draft) by the
+Free Software Foundation. If the Document does not specify a version
+number of this License, you may choose any version ever published (not
+as a draft) by the Free Software Foundation. If the Document
+specifies that a proxy can decide which future versions of this
+License can be used, that proxy's public statement of acceptance of a
+version permanently authorizes you to choose that version for the
+Document.
+
+@item
+RELICENSING
+
+``Massive Multiauthor Collaboration Site'' (or ``MMC Site'') means any
+World Wide Web server that publishes copyrightable works and also
+provides prominent facilities for anybody to edit those works. A
+public wiki that anybody can edit is an example of such a server. A
+``Massive Multiauthor Collaboration'' (or ``MMC'') contained in the
+site means any set of copyrightable works thus published on the MMC
+site.
+
+``CC-BY-SA'' means the Creative Commons Attribution-Share Alike 3.0
+license published by Creative Commons Corporation, a not-for-profit
+corporation with a principal place of business in San Francisco,
+California, as well as future copyleft versions of that license
+published by that same organization.
+
+``Incorporate'' means to publish or republish a Document, in whole or
+in part, as part of another Document.
+
+An MMC is ``eligible for relicensing'' if it is licensed under this
+License, and if all works that were first published under this License
+somewhere other than this MMC, and subsequently incorporated in whole
+or in part into the MMC, (1) had no cover texts or invariant sections,
+and (2) were thus incorporated prior to November 1, 2008.
+
+The operator of an MMC Site may republish an MMC contained in the site
+under CC-BY-SA on the same site at any time before August 1, 2009,
+provided the MMC is eligible for relicensing.
+
+@end enumerate
+
+@page
+@heading ADDENDUM: How to use this License for your documents
+
+To use this License in a document you have written, include a copy of
+the License in the document and put the following copyright and
+license notices just after the title page:
+
+@smallexample
+@group
+ Copyright (C) @var{year} @var{your name}.
+ Permission is granted to copy, distribute and/or modify this document
+ under the terms of the GNU Free Documentation License, Version 1.3
+ or any later version published by the Free Software Foundation;
+ with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+ Texts. A copy of the license is included in the section entitled ``GNU
+ Free Documentation License''.
+@end group
+@end smallexample
+
+If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
+replace the ``with@dots{}Texts.'' line with this:
+
+@smallexample
+@group
+ with the Invariant Sections being @var{list their titles}, with
+ the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
+ being @var{list}.
+@end group
+@end smallexample
+
+If you have Invariant Sections without Cover Texts, or some other
+combination of the three, merge those two alternatives to suit the
+situation.
+
+If your document contains nontrivial examples of program code, we
+recommend releasing these examples in parallel under your choice of
+free software license, such as the GNU General Public License,
+to permit their use in free software.
+
+@c Local Variables:
+@c ispell-local-pdict: "ispell-dict"
+@c End:
+
diff --git a/doc/taler-exchange.texi b/doc/taler-exchange.texi
new file mode 100644
index 000000000..35d66d013
--- /dev/null
+++ b/doc/taler-exchange.texi
@@ -0,0 +1,869 @@
+\input texinfo @c -*-texinfo-*-
+@setfilename taler-exchange.info
+@documentencoding UTF-8
+@include version.texi
+@settitle The GNU Taler Exchange Operator Manual
+@paragraphindent 0
+@exampleindent 4
+
+@copying
+This manual is for the GNU Taler Exchange
+(version @value{VERSION}, @value{UPDATED}),
+a payment service provider for GNU Taler.
+
+Copyright @copyright{} 2014-2017 GNUnet e.V. and INRIA
+
+@quotation
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3
+or any later version published by the Free Software Foundation;
+with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+Texts. A copy of the license is included in the section entitled "GNU
+Free Documentation License".
+@end quotation
+@end copying
+
+@dircategory Network applications
+@direntry
+* GNU Taler Exchange: (taler-exchange). Electronic payment system.
+@end direntry
+
+
+@titlepage
+@title The GNU Taler Exchange Operator Manual
+@subtitle Version @value{VERSION}
+@subtitle @value{UPDATED}
+@author Christian Grothoff (@email{grothoff@@taler.net})
+@author Marcello Stanisci (@email{stanisci@@taler.net})
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+@end titlepage
+
+@summarycontents
+@contents
+
+@ifnottex
+@node Top
+@top The GNU Taler Exchange Operator Manual
+@insertcopying
+@end ifnottex
+
+
+@menu
+* Introduction::
+* Installation::
+* Configuration::
+* Deployment::
+* Diagnostics::
+
+
+
+Appendices
+
+* GNU-AGPL:: The GNU Affero General Public License says how you
+ can copy and share the code of the `GNU Taler Exchange'.
+* GNU-FDL:: The GNU Free Documentation License says how you
+ can copy and share the documentation of `GNU Taler'.
+
+Indices
+
+* Concept Index:: Index of concepts and programs.
+@end menu
+
+@node Introduction
+@chapter Introduction
+
+
+
+@node Installation
+@chapter Installation
+
+Please install the following packages before proceeding with the exchange compilation.
+
+@itemize
+
+@item
+GNU autoconf >= 2.69
+
+@item
+GNU automake >= 1.14
+
+@item
+GNU libtool >= 2.4
+
+@item
+GNU autopoint >= 0.19
+
+@item
+GNU libltdl >= 2.4
+
+@item
+GNU libunistring >= 0.9.3
+
+@item
+libcurl >= 7.26 (or libgnurl >= 7.26)
+
+@item
+GNU libmicrohttpd >= 0.9.39
+
+@item
+GNU libgcrypt >= 1.6
+
+@item
+libjansson >= 2.7
+
+@item
+Postgres >= 9.4, including libpq
+
+@item
+libgnunetutil (from Git)
+
+@item
+GNU Taler exchange (from Git)
+@end itemize
+
+Except for the last two, these are available in most GNU/Linux
+distributions and should just be installed using the respective
+package manager.
+
+The following instructions will show how to install libgnunetutil and
+the GNU Taler exchange.
+
+Before you install libgnunetutil, you must download and install the
+dependencies mentioned above, otherwise the build may succeed but fail
+to export some of the tooling required by Taler.
+
+To download and install libgnunetutil, proceed as follows:
+
+@example
+$ git clone https://gnunet.org/git/gnunet/
+$ cd gnunet/
+$ ./bootstrap
+$ ./configure [--prefix=GNUNETPFX]
+$ # Each dependency can be fetched from non standard locations via
+$ # the '--with-<LIBNAME>' option. See './configure --help'.
+$ make
+# make install
+@end example
+
+If you did not specify a prefix, GNUnet will install to
+@code{/usr/local}, which requires you to run the last step as
+@code{root}.
+
+To download and install the GNU Taler exchange, proceeds as follows:
+
+@example
+$ git clone git://taler.net/exchange
+$ cd exchange
+$ ./bootstrap
+$ ./configure [--prefix=EXCHANGEPFX] \
+ [--with-gnunet=GNUNETPFX]
+$ # Each dependency can be fetched from non standard locations via
+$ # the '--with-<LIBNAME>' option. See './configure --help'.
+$ make
+# make install
+@end example
+
+If you did not specify a prefix, the exchange will install to
+@code{/usr/local}, which requires you to run the last step as
+@code{root}. Note that you have to specify @code{--with-gnunet=/usr/local}
+if you installed GNUnet to @code{/usr/local} in the previous step.
+
+
+
+
+@node Configuration
+@chapter Configuration
+
+In this document, we assume that @code{$HOME/.config/taler.conf} is being customized.
+
+@menu
+* Keying::
+* Serving::
+* Currency::
+* Bank account::
+* Database::
+* Coins (denomination keys): Coins denomination keys.
+* Keys duration::
+
+@end menu
+
+@node Keying
+@section Keying
+
+The exchange works with three types of keys:
+
+@itemize
+
+@item
+@cite{master key}
+
+@item
+@cite{sign keys}
+
+@item
+@cite{denomination keys} (see section @cite{Coins})
+@end itemize
+
+@cite{master key}: in section @cite{[exchange]}, edit the two following values:
+
+
+@itemize
+
+@item
+@cite{master_priv_file}: Path to the exchange's master private file.
+
+@item
+@cite{master_public_key}: Must specify the exchange's master public key.
+@end itemize
+
+@cite{sign keys}: the following two options under @cite{[exchange_keys]} section control @cite{sign keys}:
+
+
+@itemize
+
+@item
+@cite{signkey_duration}: How long should one signing key be used?
+
+@item
+@cite{lookahead_sign}: How much time we want to cover with our @cite{signkeys}? Note that if @cite{signkey_duration} is bigger than @cite{lookahead_sign}, @cite{taler-exchange-keyup} will generate a quantity of @cite{signkeys} which is sufficient to cover all the gap. See keys-duration.
+@end itemize
+
+
+@node Serving
+@section Serving
+
+
+The exchange can serve HTTP over both TCP and UNIX domain socket. It needs this
+configuration @emph{twice}, because it opens one connection for ordinary REST calls, and one
+for "/admin" and "/test" REST calls, because the operator may want to restrict the access to "/admin".
+
+The following values are to be configured under the section @cite{[exchange]} and @cite{[exchange-admin]}:
+
+
+@itemize
+
+@item
+@cite{serve}: must be set to @cite{tcp} to serve HTTP over TCP, or @cite{unix} to serve HTTP over a UNIX domain socket
+
+@item
+@cite{port}: Set to the TCP port to listen on if @cite{serve} Is @cite{tcp}.
+
+@item
+@cite{unixpath}: set to the UNIX domain socket path to listen on if @cite{serve} Is @cite{unix}
+
+@item
+@cite{unixpath_mode}: number giving the mode with the access permissiON MASK for the @cite{unixpath} (i.e. 660 = rw-rw----).
+@end itemize
+
+The exchange can be started with the @cite{-D} option to disable the administrative
+functions entirely. It is recommended that the administrative API is only
+accessible via a properly protected UNIX domain socket.
+
+
+@node Currency
+@section Currency
+
+
+The exchange supports only one currency. This data is set under the respective
+option @cite{currency} in section @cite{[taler]}.
+
+@node Bank account
+@section Bank account
+
+@menu
+* Wireformat::
+* Incoming::
+* Outgoing::
+
+@end menu
+
+@node Wireformat
+@subsection Wireformat
+
+
+The wireformat is the protocol to be used between the exchange and the banks.
+The option is @cite{wireformat}, under section @cite{[exchange]}. The exchange currently supports
+the @cite{test} wireformat. This wireformat is used for testing the system against a fictional bank.
+
+@cartouche
+@quotation Note
+The SEPA wireformat is work in progress.
+@end quotation
+@end cartouche
+
+@node Incoming
+@subsection Incoming
+
+
+The bank account where the exchange gets money from customers is configured under
+the section @cite{[exchange-wire-incoming-X]}, where @cite{X} matches the value given to the
+option @cite{wireformat}. This section contains only one option: @cite{X_response_file}, which
+takes the path to a text file containing the exchange's bank account details in JSON
+format.
+
+The command line tool @cite{taler-exchange-wire} is used to create such a file.
+For example, the utility may be invoked as follows:
+
+@example
+$ taler-exchange-wire -j '@{"name": "The Exchange", "account_number": 10, "bank_uri": "https://bank.demo.taler.net", "type": "test"@}' -t test -o exchange.json
+@end example
+
+Note that the value given to option @cite{-t} must match the value in the JSON's field @code{"type"}.
+
+The generated file will be echoed by the exchange when serving
+/wire@footnote{https://api.taler.net/api-exchange.html#wire-req}
+requests.
+
+@node Outgoing
+@subsection Outgoing
+
+
+This exchange's bank account is used to give money to merchants, after successful
+deposits@footnote{https://api.taler.net/api-exchange.html#deposit-par}
+operations. If @cite{test} is the chosen wireformat, the outcoming bank account is configured by the following
+options under @cite{[exchange-wire-outcoming-test]}:
+
+@quotation
+
+
+@itemize
+
+@item
+@cite{exchange_account_numer}: which bank account number has the exchange
+
+@item
+@cite{bank_uri}: base URL of the bank hosting the exchange bank account
+@end itemize
+@end quotation
+
+@cartouche
+@quotation Note
+The rationale behind having two bank accounts is that the exchange operator, as a security
+measure, may want to instruct the bank that the incoming bank account is only supposed to
+@emph{receive} money.
+@end quotation
+@end cartouche
+
+
+
+@node Database,Coins denomination keys,Bank account,Configuration
+@section Database
+
+
+The option @cite{db} under section @cite{[exchange]} gets the DB backend's name the exchange
+is going to use. So far, only @cite{db = postgres} is supported. After choosing the backend,
+it is mandatory to supply the connection string (namely, the database name). This is
+possible in two ways:
+
+
+@itemize
+
+@item
+via an environment variable: @cite{TALER_EXCHANGEDB_POSTGRES_CONFIG}.
+
+@item
+via configuration option @cite{db_conn_str}, under section @cite{[exchangedb-BACKEND]}. For example, the demo exchange is configured as follows:
+@end itemize
+
+@example
+[exchange]
+...
+db = postgres
+...
+
+[exchangedb-postgres]
+db_conn_str = postgres:///talerdemo
+@end example
+
+@node Coins denomination keys,Keys duration,Database,Configuration
+@section Coins (denomination keys)
+
+
+Sections specifying denomination (coin) information start with "coin_". By convention, the name continues with "$CURRENCY_[$SUBUNIT]_$VALUE", i.e. @cite{[coin_eur_ct_10]} for a 10 cent piece. However, only the "coin_" prefix is mandatory. Each "coin_"-section must then have the following options:
+
+
+@itemize
+
+@item
+@cite{value}: How much is the coin worth, the format is CURRENCY:VALUE.FRACTION. For example, a 10 cent piece is "EUR:0.10".
+
+@item
+@cite{duration_withdraw}: How long can a coin of this type be withdrawn? This limits the losses incurred by the exchange when a denomination key is compromised.
+
+@item
+@cite{duration_overlap}: What is the overlap of the withdrawal timespan for this coin type?
+
+@item
+@cite{duration_spend}: How long is a coin of the given type valid? Smaller values result in lower storage costs for the exchange.
+
+@item
+@cite{fee_withdraw}: What does it cost to withdraw this coin? Specified using the same format as @cite{value}.
+
+@item
+@cite{fee_deposit}: What does it cost to deposit this coin? Specified using the same format as @cite{value}.
+
+@item
+@cite{fee_refresh}: What does it cost to refresh this coin? Specified using the same format as @cite{value}.
+
+@item
+@cite{rsa_keysize}: How many bits should the RSA modulus (product of the two primes) have for this type of coin.
+@end itemize
+
+@node Keys duration,,Coins denomination keys,Configuration
+@section Keys duration
+
+
+Both @cite{signkeys} and @cite{denom keys} have a starting date. The option @cite{lookahead_provide}, under section @cite{[exchange_keys]}, is such that only keys
+whose starting date is younger than @cite{lookahead_provide} will be issued by the exchange.
+
+@cite{signkeys}. The option @cite{lookahead_sign} is such that, being @cite{t} the time when @cite{taler-exchange-keyup}
+is run, @cite{taler-exchange-keyup} will generate @cite{n} @cite{signkeys}, where @cite{t + (n * signkey_duration) = t + lookahead_sign}. In other words, we generate a number of keys which is sufficient to cover a period of
+@cite{lookahead_sign}. As for the starting date, the first generated key will get a starting time of @cite{t},
+and the @cite{j}-th key will get a starting time of @cite{x + signkey_duration}, where @cite{x} is the starting time
+of the @cite{(j-1)}-th key.
+
+@cite{denom keys}. The option @cite{lookahead_sign} is such that, being @cite{t} the time when @cite{taler-exchange-keyup}
+is run, @cite{taler-exchange-keyup} will generate @cite{n} @cite{denom keys} for each denomination, where
+@cite{t + (n * duration_withdraw) = t + lookahead_sign}. In other words, for each denomination, we generate a
+number of keys which is sufficient to cover a period of @cite{lookahead_sign}. As for the starting date, the
+first generated key will get a starting time of @cite{t}, and the @cite{j}-th key will get a starting time of
+@cite{x + duration_withdraw}, where @cite{x} is the starting time of the @cite{(j-1)}-th key.
+
+
+
+@node Deployment
+@chapter Deployment
+
+
+@menu
+* Deploying to stable::
+* Database upgrades::
+* Standalone deployment::
+@end menu
+
+
+@node Deploying to stable
+@section Deploying to stable
+
+
+First, make sure that the deployment @emph{AND} the deployment scripts work on the @cite{test.taler.net} deployment.
+
+For all repositories that have a separate stable branch (currently exchange.git,
+merchant.git, merchant-frontends.git, bank.git, landing.git) do:
+
+@example
+$ cd $REPO
+$ git pull origin master stable
+$ git checkout stable
+
+# option a: resolve conflicts resulting from hotfixes
+$ git merge master
+$ ...
+
+# option b: force stable to master
+$ git update-ref refs/heads/stable master
+
+$ git push # possibly with --force
+
+# continue development
+$ git checkout master
+@end example
+
+Log into taler.net with the account that is @emph{not} active by looking
+at the @cite{sockets} symlink of the @cite{demo} account.
+
+The following instructions wipe out the old deployment completely.
+
+@example
+$ ls -l ~demo/sockets
+
+[...] sockets -> /home/demo-green/sockets/
+@end example
+
+In this case, @cite{demo-green} is the active deployment, and @cite{demo-blue} should be updated.
+After the update is over, the @cite{/home/demo/sockets} symlink will be pointed to @cite{demo-blue}.
+
+@example
+# Remove all existing files
+$ find $HOME -exec rm -fr @{@} \;
+
+$ git clone /var/git/deployment.git
+$ ./deployment/bootstrap-bluegreen demo
+
+# set environment appropriately
+$ . activate
+$ taler-deployment-build
+
+# upgrade the database! this
+# process depends on the specific version
+
+$ taler-deployment-start
+
+# look at the logs, verify that everything is okay
+@end example
+
+Now the symlink can be updated.
+
+
+@node Database upgrades
+@section Database upgrades
+
+
+The exchange db can be re-initialized with
+
+@example
+$ taler-exchange-dbinit -r
+@end example
+
+CAUTION: YOU WILL LOSE ALL DATA WITH THIS!
+
+
+@node Standalone deployment
+@section Standalone deployment
+
+
+This tecnique aims to set a thorough Taler installation up on a
+machine whose nginx configuration is configured by config files
+from @indicateurl{https://git.taler.net/deployment.git/tree/etc/nginx}.
+
+This installation assumes that all the steps are run with @code{$HOME}
+as @code{$CWD}.
+
+The first step is to fetch the @cite{deployment} repository, which hosts all
+the needed scripts.
+
+@example
+# Adapt the repository's URI to your needs.
+$ git clone /var/git/deployment.git/
+@end example
+
+The next step is to fetch all the codebases from all the components.
+
+@example
+$ ./deployment/bootstrap-standalone
+@end example
+
+If the previous step succeeded, a file named @code{activate} should be now
+in the @code{$CWD}. It contains environmental definitions for @code{$PATH} and
+database names.
+
+@cartouche
+@quotation Note
+Please @emph{ignore} the output from the previous script when it succeeds,
+which is
+
+@quotation
+
+@example
+WARNING: enabling "trust" authentication for local connections
+You can change this by editing pg_hba.conf or using the option -A, or
+--auth-local and --auth-host, the next time you run initdb.
+
+Success. You can now start the database server using:
+
+/usr/lib/postgresql/9.5/bin/pg_ctl -D talerdb -l logfile start
+@end example
+
+The reason is that this message is generated by Postgresql's utilities and
+you never need to start your database manually; it will be started by the
+init script that launches all the Taler processes.
+@end quotation
+@end quotation
+@end cartouche
+
+Now we need to compile and install all the downloaded codebases.
+
+@example
+# We first update `@w{`}$PATH`@w{`}, in order to make all the compilation
+# and configuration utilities available.
+$ source activate
+
+# Double check if the previous step worked: $PATH should
+# contain $HOME/local/bin.
+$ echo $PATH
+
+# The actual compilation:
+$ taler-deployment-build
+@end example
+
+The following step will generate config files for all the components.
+Please @strong{note} that although a default currency will be picked up by the
+script, it is possible to have a custom currency by setting the environment
+variable @code{TALER_CONFIG_CURRENCY} to the wanted currency, and then running
+the config generator.
+
+@example
+$ taler-deployment-config-generate
+@end example
+
+whereas the following one will place signatures inside wireformat JSON
+files.
+
+@example
+$ taler-deployment-config-sign
+@end example
+
+The next step is to generate @cite{signkeys} and @cite{denomkeys}.
+
+@example
+$ taler-deployment-keyup
+@end example
+
+@c An error of "invalid currency name" might be related to the current
+@c policy of 12-chars limit for currency names; which is likely going to
+@c be changed.
+
+It may be necessary to define database tables for the exchange. The
+following command does that.
+
+@example
+# Erase all the data!
+$ taler-exchange-dbinit -r
+@end example
+
+As of the merchant backend, it creates tables at launch time, so it is
+not required to define tables before launching it. @cite{However}, if some
+table's definition changed over the time, and there is a need to force
+a redefinition of tables, then the following command accomplishes that
+for the merchant:
+
+@example
+# Erase all the data!
+$ taler-merchant-dbinit -r
+@end example
+
+If all previous steps succeeded, it is now possible to launch all the
+processes. That is accomplished by the following command:
+
+@example
+$ taler-deployment-start
+@end example
+
+@cartouche
+@quotation Note
+Please make sure your nginx works correctly with its configuration
+at @code{<DEPLOYMENT-REPO>/etc/nginx}.
+@end quotation
+@end cartouche
+
+
+@node Diagnostics
+@chapter Diagnostics
+
+@menu
+* Configuration format::
+* Reserve management::
+* Database Scheme::
+* Signing key storage::
+* Denomination key storage::
+* Auditor signature storage::
+@end menu
+
+@node Configuration format
+@section Configuration format
+
+
+In Taler realm, any component obeys to the same pattern to get configuration
+values. According to this pattern, once the component has been installed, the
+installation deploys default values in @cite{$@{prefix@}/share/taler/config.d/}, in
+@cite{.conf} files. In order to override these defaults, the user can write a custom
+@cite{.conf} file and either pass it to the component at execution time, or name it
+@cite{taler.conf} and place it under @cite{$HOME/.config/}.
+
+
+A config file is a text file containing @cite{sections}, and each section contains
+its @cite{values}. The right format follows:
+
+@example
+[section1]
+value1 = string
+value2 = 23
+
+[section2]
+value21 = string
+value22 = /path22
+@end example
+
+Throughout any configuration file, it is possible to use @code{$}-prefixed variables,
+like @code{$VAR}, especially when they represent filesystem paths.
+It is also possible to provide defaults values for those variables that are unset,
+by using the following syntax: @code{$@{VAR:-default@}}.
+However, there are two ways a user can set @code{$}-prefixable variables:
+
+by defining them under a @code{[paths]} section, see example below,
+
+@example
+[paths]
+TALER_DEPLOYMENT_SHARED = $@{HOME@}/shared-data
+..
+[section-x]
+path-x = $@{TALER_DEPLOYMENT_SHARED@}/x
+@end example
+
+or by setting them in the environment:
+
+@example
+$ export VAR=/x
+@end example
+
+The configuration loader will give precedence to variables set under @code{[path]},
+though.
+
+The utility @code{taler-config}, which gets installed along with the exchange, serves
+to get and set configuration values without directly editing the @cite{.conf}.
+The option @code{-f} is particularly useful to resolve pathnames, when they use
+several levels of @code{$}-expanded variables. See @code{taler-config --help}.
+
+Note that, in this stage of development, the file @code{$HOME/.config/taler.conf}
+can contain sections for @emph{all} the component. For example, both an exchange and
+a bank can read values from it.
+
+The repository @code{git://taler.net/deployment} contains examples of configuration
+file used in our demos. See under @code{deployment/config}.
+
+@cartouche
+@quotation Note
+Expectably, some components will not work just by using default values, as their
+work is often interdependent. For example, a merchant needs to know an exchange
+URL, or a database name.
+@end quotation
+@end cartouche
+
+
+
+@node Reserve management
+@section Reserve management
+
+
+Incoming transactions to the exchange's provider result in the creation or update of reserves, identified by their reserve key.
+The command line tool @cite{taler-exchange-reservemod} allows create and add money to reserves in the exchange's database.
+
+
+
+
+@node Database Scheme
+@section Database Scheme
+
+
+The exchange database must be initialized using @cite{taler-exchange-dbinit}. This
+tool creates the tables required by the Taler exchange to operate. The
+tool also allows you to reset the Taler exchange database, which is useful
+for test cases but should never be used in production. Finally,
+@cite{taler-exchange-dbinit} has a function to garbage collect a database,
+allowing administrators to purge records that are no longer required.
+
+The database scheme used by the exchange look as follows:
+
+@image{exchange-db,5in,,,png}
+
+
+@node Signing key storage
+@section Signing key storage
+
+
+The private online signing keys of the exchange are stored in a
+subdirectory "signkeys/" of the "KEYDIR" which is an option in the
+"[exchange]" section of the configuration file. The filename is the
+starting time at which the signing key can be used in microseconds
+since the Epoch. The file format is defined by the @cite{struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP}:
+
+@example
+struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP @{
+ struct TALER_ExchangePrivateKeyP signkey_priv;
+ struct TALER_ExchangeSigningKeyValidityPS issue;
+@};
+@end example
+
+
+@node Denomination key storage
+@section Denomination key storage
+
+
+The private denomination keys of the exchange are store in a
+subdirectory "denomkeys/" of the "KEYDIR" which is an option in the
+"[exchange]" section of the configuration file. "denomkeys/" contains
+further subdirectories, one per denomination. The specific name of
+the subdirectory under "denomkeys/" is ignored by the exchange.
+However, the name is important for the "taler-exchange-keyup" tool
+that generates the keys. The tool combines a human-readable encoding
+of the denomination (i.e. for EUR:1.50 the prefix would be
+"EUR_1_5-", or for EUR:0.01 the name would be "EUR_0_01-") with a
+postfix that is a truncated Crockford32 encoded hash of the various
+attributes of the denomination key (relative validity periods, fee
+structure and key size). Thus, if any attributes of a coin change,
+the name of the subdirectory will also change, even if the
+denomination remains the same.
+
+Within this subdirectory, each file represents a particular
+denomination key. The filename is the starting time at which the
+signing key can be used in microseconds since the Epoch. The
+format on disk begins with a
+@cite{struct TALER_EXCHANGEDB_DenominationKeyInformationP} giving
+the attributes of the denomination key and the associated
+signature with the exchange's long-term offline key:
+
+@example
+struct TALER_EXCHANGEDB_DenominationKeyInformationP @{
+ struct TALER_MasterSignatureP signature;
+ struct TALER_DenominationKeyValidityPS properties;
+@};
+@end example
+
+This is then followed by the variable-size RSA private key in
+libgcrypt's S-expression format, which can be decoded using
+@cite{GNUNET_CRYPTO_rsa_private_key_decode()}.
+
+
+@node Auditor signature storage
+@section Auditor signature storage
+
+
+Signatures from auditors are stored in the directory specified
+in the exchange configuration section "exchangedb" under the
+option "AUDITOR_BASE_DIR". The exchange does not care about
+the specific names of the files in this directory.
+
+Each file must contain a header with the public key information
+of the auditor, the master public key of the exchange, and
+the number of signed denomination keys:
+
+@example
+struct AuditorFileHeaderP @{
+ struct TALER_AuditorPublicKeyP apub;
+ struct TALER_MasterPublicKeyP mpub;
+ uint32_t dki_len;
+@};
+@end example
+
+This is then followed by @cite{dki_len} signatures of the auditor of type
+@cite{struct TALER_AuditorSignatureP}, which are then followed by another
+@cite{dki_len} blocks of type @cite{struct TALER_DenominationKeyValidityPS}.
+The auditor's signatures must be signatures over the information of
+the corresponding denomination key validity structures embedded in a
+@cite{struct TALER_ExchangeKeyValidityPS} structure using the
+@cite{TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS} purpose.
+
+
+
+@c **********************************************************
+@c ******************* Appendices *************************
+@c **********************************************************
+
+@node GNU-AGPL
+@chapter GNU Affero GPL
+@cindex license
+@include agpl.texi
+
+@node GNU-FDL
+@chapter GNU Free Documentation License
+@cindex license
+@include fdl-1.3.texi
+
+@node Concept Index
+@chapter Concept Index
+
+@printindex cp
+
+@bye