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controller.xql
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xquery version "3.1";
declare namespace exist="http://exist.sourceforge.net/NS/exist";
declare namespace map="http://www.w3.org/2005/xpath-functions/map";
declare namespace request="http://exist-db.org/xquery/request";
declare variable $exist:path external;
declare variable $exist:resource external;
declare variable $exist:controller external;
declare variable $exist:prefix external;
declare variable $exist:root external;
declare variable $path-parts := tokenize($exist:path, '/')[. ne ''];
declare variable $nginx-request-uri-header := request:get-header("nginx-request-uri");
declare function local:uri() as xs:string {
($nginx-request-uri-header, request:get-uri())[1]
};
declare function local:port($port as xs:integer) as xs:string? {
if ($port = (80, 443)) then () else ":" || $port
};
declare function local:get-url() {
concat(
request:get-scheme(),
'://',
request:get-server-name(),
local:port(request:get-server-port()),
local:uri()
)
};
declare function local:maybe-set-if-modified-since($ims-header-value as xs:string?) as empty-sequence() {
if (empty($ims-header-value)) then ()
else request:set-attribute("if-modified-since", $ims-header-value)
};
declare function local:serve-not-found-page() as element() {
response:set-status-code(404),
local:render-page("error-page-404.xml")
};
declare variable $local:view-module-url := $exist:controller || "/modules/view.xql";
declare function local:render-page($page-template as xs:string, $parameters as map(*)) as element() {
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/pages/{$page-template}" method="get" />
<view>
<forward url="{$local:view-module-url}">
{
map:for-each($parameters, function ($name as xs:string, $value as xs:string) as element() {
<add-parameter xmlns="http://exist.sourceforge.net/NS/exist"
name="{$name}" value="{$value}" />
})
}
<add-parameter name="x-method" value="{lower-case(request:get-method())}" />
</forward>
</view>
<error-handler>
<forward url="{$exist:controller}/pages/error-page.xml" method="get"/>
<forward url="{$local:view-module-url}"/>
</error-handler>
</dispatch>
};
declare function local:render-page($page-template as xs:string) as element() {
local:render-page($page-template, map{})
};
(:
util:log('debug', map {
"request:get-uri": request:get-uri(),
"nginx-request-uri": request:get-header('nginx-request-uri'),
"exist:path": $exist:path,
"path-parts": $path-parts
}),
:)
local:maybe-set-if-modified-since(request:get-header("If-Modified-Since")),
if ($exist:path eq '') then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<redirect url="{local:uri()}/"/>
</dispatch>
(: handle request for landing page, e.g., http://history.state.gov/ :)
else if ($exist:path eq "/" or (: remove after beta period :) ($exist:path eq '' and $nginx-request-uri-header eq '/')) then
local:render-page("index.xml", map{ "publication-id": "app" })
(: strip trailing slash :)
else if (ends-with($exist:path, "/")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<redirect url="{replace(local:uri(), '/$', '')}"/>
</dispatch>
(: strip multiple slashes :)
else if (contains($exist:path, "//")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<redirect url="{replace(local:uri(), '/+', '/')}"/>
</dispatch>
(: handle requests for static resources: css, js, images, etc. :)
else if (contains($exist:path, "/resources/")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/{replace($exist:path, '^.*(resources.*)$', '$1')}"/>
</dispatch>
(: handle requests for twitter test :)
else if (ends-with($exist:path, "validate-results-of-twitter-jobs.xq")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/tests/xquery/validate-results-of-twitter-jobs.xq"/>
<view>
<forward url="{$exist:controller}/modules/view.xql"/>
</view>
<error-handler>
<forward url="{$exist:controller}/pages/error-page.xml" method="get"/>
<forward url="{$exist:controller}/modules/view.xql"/>
</error-handler>
</dispatch>
(: ignore direct requests to main modules :)
else if (ends-with($exist:resource, ".xql")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<ignore/>
</dispatch>
else if (starts-with($exist:path, "/sitemap")) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller || "/resources/sitemaps" || $exist:path}"/>
</dispatch>
(: reject ANY request with more than 4 path parts -> /a/b/c/d/e :)
else if (count($path-parts) gt 4) then (
util:log("info", ("hsg-shell controller.xql received >4 path parts: ", string-join($path-parts, ":"))),
local:serve-not-found-page()
)
else switch($path-parts[1])
(: handle requests for static resource: robots.txt :)
case "robots.txt"
case "opensearch.xml"
case "favicon.ico" return
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<!-- TODO: add cache header! -->
<forward url="{$exist:controller}/resources/{$exist:path}"/>
</dispatch>
case "transform" return
if ($path-parts[2] eq "frus.css") then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<!-- <set-header name="Cache-Control" value="no-cache" /> -->
<cache-control cache="yes"/>
</dispatch>
else
local:serve-not-found-page()
(: handle requests for historicaldocuments section :)
case 'historicaldocuments' return
switch (string($path-parts[2]))
case '' return
(: section landing page :)
local:render-page("historicaldocuments/index.xml", map{ "publication-id": "historicaldocuments" })
case "about-frus" return
local:render-page("historicaldocuments/about-frus.xml", map{ "publication-id": "about-frus" })
case "citing-frus" return
local:render-page("historicaldocuments/citing-frus.xml", map{ "publication-id": "citing-frus" })
case "ebooks" return
local:render-page("historicaldocuments/ebooks.xml", map{ "publication-id": "ebooks" })
case "other-electronic-resources" return
local:render-page("historicaldocuments/other-electronic-resources.xml", map{ "publication-id": "other-electronic-resources" })
case "status-of-the-series" return
local:render-page("historicaldocuments/status-of-the-series.xml", map{ "publication-id": "status-of-the-series" })
case "guide-to-sources-on-vietnam-1969-1975" return
local:render-page("historicaldocuments/vietnam-guide.xml", map{
"publication-id": "vietnam-guide",
"document-id": "guide-to-sources-on-vietnam-1969-1975"
})
(:
case "volume-titles" return
local:render-page("historicaldocuments/volume-titles.xml", map{
"publication-id": "frus-list"
})
:)
case "quarterly-releases" return
if (empty($path-parts[3])) then
local:render-page("historicaldocuments/quarterly-releases/index.xml", map{ "publication-id": "app" })
else
local:render-page("historicaldocuments/quarterly-releases/announcements/" || $path-parts[3] || ".xml", map{
"publication-id": "app"
})
case "pre-1861" return
if (empty($path-parts[3])) then
local:render-page("historicaldocuments/pre-1861/index.xml", map{
"publication-id": "app"
})
else if ($path-parts[3] eq 'serial-set') then
switch (string($path-parts[4]))
case '' return
local:render-page("historicaldocuments/pre-1861/serial-set/index.xml", map{
"publication-id": "other-publications"
})
case "all" return
local:render-page("historicaldocuments/pre-1861/serial-set/all.xml", map{
"publication-id": "other-publications"
})
case "browse" return
local:render-page("historicaldocuments/pre-1861/serial-set/browse.xml", map{
"publication-id": "other-publications"
})
default return
local:serve-not-found-page()
else
local:serve-not-found-page()
case "frus-history" return
switch (string($path-parts[3]))
case '' return
local:render-page("historicaldocuments/frus-history/index.xml", map{
"publication-id": "frus-history-monograph",
"document-id": "frus-history"
})
case "events" return
local:render-page("historicaldocuments/frus-history/events/index.xml", map{
"publication-id": "frus-history"
})
case "documents" return
if (empty($path-parts[4])) then
local:render-page("historicaldocuments/frus-history/documents/index.xml", map{
"publication-id": "frus-history-documents"
})
else
local:render-page("historicaldocuments/frus-history/documents/document.xml", map{
"publication-id": "frus-history-documents",
"document-id": $path-parts[4]
})
case "research" return
if (empty($path-parts[4])) then
local:render-page("historicaldocuments/frus-history/research/index.xml", map{
"publication-id": "frus-history-articles"
})
else
local:render-page("historicaldocuments/frus-history/research/article.xml", map{
"publication-id": "frus-history-articles",
"document-id": $path-parts[4]
})
case "appendix-a" return
local:render-page("historicaldocuments/frus-history/appendix-a.xml", map{
"publication-id": "frus-history-monograph",
"document-id": "frus-history",
"section-id": "appendix-a",
"requested-url": local:get-url()
})
default return
(: TODO: can we check easily here, if a section-id is valid? :)
local:render-page("historicaldocuments/frus-history/monograph-interior.xml", map{
"publication-id": "frus-history-monograph",
"document-id": "frus-history",
"section-id": $path-parts[3],
"requested-url": local:get-url()
})
default return
(: return 404 for requests with unreasonable numbers of path path-parts :)
if (count($path-parts) gt 3) then (
util:log("info", ("hsg-shell controller.xql received >2 path-parts: ", string-join($path-parts, "/"))),
local:serve-not-found-page()
)
else if (starts-with($path-parts[2], "frus")) then
if (empty($path-parts[3])) then
local:render-page("historicaldocuments/volume-landing.xml", map{
"publication-id": "frus",
"document-id": $path-parts[2]
})
else
local:render-page("historicaldocuments/volume-interior.xml", map{
"publication-id": "frus",
"document-id": $path-parts[2],
"section-id": $path-parts[3],
"requested-url": local:get-url()
})
else
local:render-page("historicaldocuments/administrations.xml", map{
"administration-id": $path-parts[2]
})
(: handle requests for countries section :)
case 'countries' return
switch (string($path-parts[2]))
case '' return
local:render-page('countries/index.xml', map{
"publication-id": "countries"
})
case "all" return
local:render-page('countries/all.xml', map{
"publication-id": "countries-other"
})
case "issues" return
if (empty($path-parts[3])) then
local:render-page('countries/issues/index.xml', map{
"publication-id": "countries-other"
})
else
local:render-page('countries/issues/article.xml', map {
"publication-id": "countries-issues",
"document-id": $path-parts[3]
})
case "archives" return
switch (string($path-parts[3]))
case '' return
local:render-page('countries/archives/index.xml', map {
"publication-id": "archives"
})
case "all" return
local:render-page('countries/archives/all.xml', map {
"publication-id": "archives"
})
default return
local:render-page('countries/archives/article.xml', map {
"publication-id": "archives",
"document-id": $path-parts[3]
})
default return
(: FIXME: find out which values are allowed here :)
local:render-page('countries/article.xml', map{
"publication-id": "countries",
"document-id": $path-parts[2]
})
(: handle requests for departmenthistory section :)
case 'departmenthistory' return
switch (string($path-parts[2]))
case '' return
local:render-page("departmenthistory/index.xml", map {
"publication-id": "departmenthistory"
})
(:
case "timeline" return
if (empty($path-parts[3])) then
local:render-page("departmenthistory/timeline/index.xml", map {
"publication-id": "timeline",
"document-id": "timeline"
})
else
local:render-page("departmenthistory/timeline/section.xml", map {
"publication-id": "timeline",
"document-id": "timeline",
"section-id": "chapter_" || $path-parts[3]
})
:)
case "short-history" return
if (empty($path-parts[3])) then
local:render-page('departmenthistory/short-history/index.xml', map{
"publication-id": "short-history",
"document-id": "short-history"
})
else
local:render-page('departmenthistory/short-history/section.xml', map{
"publication-id": "short-history",
"document-id": "short-history",
"section-id": $path-parts[3]
})
case "buildings" return
if (empty($path-parts[3])) then
local:render-page('departmenthistory/buildings/index.xml', map{
"publication-id": "buildings",
"document-id": "buildings",
"section-id": "intro"
})
else
local:render-page('departmenthistory/buildings/section.xml', map{
"publication-id": "buildings",
"document-id": "buildings",
"section-id": $path-parts[3]
})
case "people" return
switch (string($path-parts[3]))
case '' return
local:render-page('departmenthistory/people/index.xml', map{
"publication-id": "people"
})
case "secretaries" return
local:render-page('departmenthistory/people/secretaries.xml', map{ "publication-id": "secretaries" })
case "principals-chiefs" return
local:render-page('departmenthistory/people/principals-chiefs.xml', map{ "publication-id": "principals-chiefs" })
case "by-name" return
if (empty($path-parts[4])) then
local:render-page('departmenthistory/people/by-name/index.xml', map{
"publication-id": "people-by-alpha"
})
else
local:render-page('departmenthistory/people/by-name/letter.xml', map{
"publication-id": "people-by-alpha",
"letter": $path-parts[4]
})
case "by-year" return
if (empty($path-parts[4])) then
local:render-page('departmenthistory/people/by-year/index.xml', map{
"publication-id": "people-by-year"
})
else
local:render-page('departmenthistory/people/by-year/year.xml', map{
"publication-id": "people-by-year",
"year": $path-parts[4]
})
case "principalofficers" return
if (empty($path-parts[4])) then
local:render-page('departmenthistory/people/principalofficers/index.xml', map{
"publication-id": "people"
})
else
local:render-page('departmenthistory/people/principalofficers/by-role-id.xml', map{
"publication-id": "people-by-role",
"role-id": $path-parts[4]
})
case "chiefsofmission" return
switch (string($path-parts[4]))
case '' return
local:render-page('departmenthistory/people/chiefsofmission/index.xml', map{
"publication-id": "people"
})
case "by-country" return
local:render-page('departmenthistory/people/chiefsofmission/countries-list.xml', map{
"publication-id": "people"
})
case "by-organization" return
local:render-page('departmenthistory/people/chiefsofmission/international-organizations-list.xml', map{
"publication-id": "people"
})
default return
local:render-page('departmenthistory/people/chiefsofmission/by-role-or-country-id.xml', map{
"publication-id": "people",
"role-or-country-id": $path-parts[4]
})
default return
local:render-page('departmenthistory/people/person.xml', map{
"publication-id": "people",
"person-id": $path-parts[3],
"document-id": $path-parts[3]
})
case "travels" return
switch (string($path-parts[3]))
case '' return
local:render-page('departmenthistory/travels/index.xml', map{
"publication-id": "travels-secretary"
})
case "president" return
if (empty($path-parts[4])) then
local:render-page('departmenthistory/travels/president/index.xml', map{
"publication-id": "travels-president"
})
else
local:render-page('departmenthistory/travels/president/person-or-country.xml', map{
"publication-id": "travels-president",
"person-or-country-id": $path-parts[4]
})
case "secretary" return
if (empty($path-parts[4])) then
local:render-page('departmenthistory/travels/secretary/index.xml', map{
"publication-id": "travels-secretary"
})
else
local:render-page('departmenthistory/travels/secretary/person-or-country.xml', map{
"publication-id": "travels-secretary",
"person-or-country-id": $path-parts[4]
})
default return
local:serve-not-found-page()
case "visits" return
if (empty($path-parts[3])) then
local:render-page('departmenthistory/visits/index.xml', map{
"publication-id": "visits"
})
else
local:render-page('departmenthistory/visits/country-or-year.xml', map{
"publication-id": "visits",
"country-or-year": $path-parts[3]
})
case "diplomatic-couriers" return
switch(string($path-parts[3]))
case '' return
local:render-page('departmenthistory/diplomatic-couriers/index.xml', map{
"publication-id": 'diplomatic-couriers'
})
case "before-the-jet-age"
case "behind-the-iron-curtain"
case "into-moscow"
case "through-the-khyber-pass" return
local:render-page('departmenthistory/diplomatic-couriers/' || $path-parts[3] || '.xml', map{
"publication-id": 'diplomatic-couriers',
"film-id": $path-parts[3]
})
default return
local:serve-not-found-page()
case "wwi" return
local:render-page('departmenthistory/wwi.xml', map {
"publication-id": "wwi"
})
default return
local:serve-not-found-page()
(: handle requests for about section :)
case 'about' return
switch (string($path-parts[2]))
case '' return
local:render-page("about/index.xml", map{
"publication-id": "app"
})
case "faq" return
if (empty($path-parts[3])) then
local:render-page("about/faq/index.xml", map{
"publication-id": "faq",
"document-id": "faq"
})
else
local:render-page("about/faq/section.xml", map{
"publication-id": "faq",
"document-id": "faq",
"section-id": $path-parts[3]
})
case "hac" return
if (empty($path-parts[3])) then
local:render-page("about/hac/index.xml", map{
"publication-id": "hac",
"document-id": "hac"
})
else
local:render-page("about/hac/section.xml", map{
"publication-id": "hac",
"document-id": "hac",
"section-id": $path-parts[3]
})
case "contact-us" return local:render-page('about/contact-us.xml', map{ "publication-id": "app" })
case "the-historian" return local:render-page('about/the-historian.xml', map{ "publication-id": "app" })
case "recent-publications" return local:render-page('about/recent-publications.xml', map{ "publication-id": "app" })
case "content-warning" return local:render-page('about/content-warning.xml', map{ "publication-id": "app" })
default return
local:serve-not-found-page()
(: handle requests for milestones section :)
case 'milestones' return
if (empty($path-parts[2])) then
local:render-page('milestones/index.xml', map{
"publication-id": "milestones"
})
(: milestones/all :)
else if ($path-parts[2] eq "all") then
local:render-page('milestones/all.xml', map{
"publication-id": "milestones"
})
(: milestones/1750-1775 :)
else if (exists($path-parts[2]) and empty($path-parts[3])) then
local:render-page('milestones/chapter/index.xml', map{
"publication-id": "milestones",
"document-id": $path-parts[2]
})
(: milestones/1750-1775/foreword :)
else if (exists($path-parts[2]) and exists($path-parts[3])) then
local:render-page('milestones/chapter/article.xml', map{
"publication-id": "milestones",
"document-id": $path-parts[2],
"section-id": $path-parts[3]
})
else (: (FIXME: this is currently never the case) anything else is an error :)
local:serve-not-found-page()
(: handle requests for conferences section :)
case 'conferences' return
if (empty($path-parts[2])) then
local:render-page('conferences/index.xml', map{
"publication-id": 'conferences'
})
else if (empty($path-parts[3])) then
local:render-page('conferences/conference/index.xml', map{
"publication-id": 'conferences',
"document-id": $path-parts[2]
})
else
local:render-page('conferences/conference/section.xml', map{
"publication-id": 'conferences',
"document-id": $path-parts[2],
"section-id": $path-parts[3]
})
(: handle requests for developer section :)
case 'developer' return
if (empty($path-parts[2])) then
local:render-page('developer/index.xml', map{ "publication-id": "app" })
else if ($path-parts[2] eq 'catalog') then
local:render-page('developer/catalog.xml', map{ "publication-id": "app" })
else
local:serve-not-found-page()
(: handle requests for open section :)
case 'open' return
switch (string($path-parts[2]))
case '' return
local:render-page("open/index.xml", map{ "publication-id": "app" })
case "frus-latest"
case "frus-metadata" return
local:render-page("open/"|| $path-parts[2] ||"/index.xml", map{ "publication-id": "app" })
case "frus-latest.xml" return
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/modules/open.xql">
<add-parameter name="xql-feed" value="latest"/>
<add-parameter name="xql-application-url" value="{local:get-url()}"/>
</forward>
</dispatch>
case "frus-metadata.xml" return
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/modules/open.xql">
<add-parameter name="xql-feed" value="metadata"/>
<add-parameter name="xql-application-url" value="{local:get-url()}"/>
</forward>
</dispatch>
default return
local:serve-not-found-page()
(: handle requests for tags section :)
case 'tags' return
switch (string($path-parts[2]))
case '' return
local:render-page("tags/index.xml", map{ "publication-id": "tags" })
case "all" return
local:render-page("tags/all.xml", map{ "publication-id": "tags" })
default return
local:render-page("tags/browse.xml", map{
"publication-id": "tags",
"tag-id": $path-parts[2]
})
(: handle requests for education section :)
case 'education' return
switch (string($path-parts[2]))
case '' return
local:render-page("education/index.xml", map{ "publication-id": "app" })
case "modules" return
if (empty($path-parts[3])) then
local:render-page("education/modules.xml", map{ "publication-id": "app" })
else
local:render-page("education/module.xml", map{
"publication-id": "education",
"document-id": $path-parts[3]
})
default return
local:serve-not-found-page()
(: handle requests for news pages :)
(: TODO TFJH: Refactor url endpoints for news articles, this is just an interim solution for template development :)
(:
case 'news' return
switch (string($path-parts[2]))
case '' return
local:render-page("news/news-list.xml", map{ "publication-id": "news" })
default return
local:render-page("news/news-article.xml", map{
"publication-id": "news",
"document-id": $path-parts[2]
})
:)
(: handle search requests :)
case 'search' return
switch (string($path-parts[2]))
case '' return
let $show-search-results := fold-left(("q", "start-date", "end-date"), false(), function($result, $next-parameter-name) {
let $values := request:get-parameter($next-parameter-name, ()) ! normalize-space()[. ne ""]
return $result or exists($values)
})
(: If a search query is present, show the results template :)
let $page :=
if ($show-search-results) then
'search/search-result.xml'
else
'search/search-landing.xml'
return
local:render-page($page, map{
"suppress-sitewide-search-field": "true",
"publication-id": "search"
})
case 'tips' return
local:render-page('search/tips.xml', map{ "publication-id": "app" })
default return
local:serve-not-found-page()
(: handle OPDS API requests :)
case 'api' return
if (
$path-parts[2] eq 'v1'
and
(
($path-parts[3] eq 'catalog' and empty($path-parts[4]))
or
($path-parts[3] eq 'catalog' and $path-parts[4] = ('all', 'recent', 'browse', 'search'))
)
) then
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/modules/opds-catalog.xql">
<add-parameter name="xql-application-url" value="{local:get-url()}"/>
</forward>
<!--TODO Add an error handler appropriate for this API - with error codes, redirects. We currently let bad requests through without raising errors. -->
</dispatch>
else
local:serve-not-found-page()
(: handle services requests :)
case 'services' return
switch($path-parts[2])
case 'volume-ids'
case 'volume-images' return
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/modules/{$path-parts[2]}.xql"/>
<!--TODO Maybe add an error handler, but not the default one. -->
</dispatch>
default return
local:serve-not-found-page()
(: fallback: return 404 :)
default return
local:serve-not-found-page()