Add `overleaf-upload.sh`

overleaf-upload.sh

+#!/bin/sh
+die() { EXITCODE=$1; shift; printf '%s\n' "$*"; exit $EXITCODE; }
+
+# Source the passed file.
+[ -e "$1" ] && . "$1"
+
+# Perform sanity checks
+[ -z "$TITLE" ] && die 1 Undefined / empty TITLE
+[ -z "$AUTHOR" ] && die 2 Undefined / empty AUTHOR
+[ -z "$DESCRIPTION" ] && die 3 Undefined / empty DESCRIPTION
+[ -z "$LICENSE" ] && die 4 Undefined / empty LICENSE
+[ -z "$SHOW_SOURCE" ] && die 5 Undefined / empty SHOW_SOURCE
+[ -z "$COOKIE_JAR" ] && die 6 Undefined / empty COOKIE_JAR
+[ -e "$COOKIE_JAR" ] || die 7 $COOKIE_JAR does not exist
+[ -z "$DOCUMENT_ID" ] && die 8 Undefined / empty DOCUMENT_ID
+
+curl_() {
+  curl -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/64.0' -s --retry 5 --location -b "$COOKIE_JAR" "$@"
+}
+
+RESPONSE=`mktemp`
+trap 'rm $RESPONSE' EXIT
+
+echo 'Retrieving CSRF token' >&2
+curl_ https://www.overleaf.com/project/$DOCUMENT_ID >$RESPONSE
+if grep --silent csrfToken <$RESPONSE
+then
+  CSRF_TOKEN="$(sed -nr '/<meta name="ol-csrfToken"/s/.*<meta name="ol-csrfToken" content="([^"]*)">.*/\1/p' <$RESPONSE | head -n 1)"
+else
+  die 9 Cannot retrieve CSRF token from the project page: "`cat $RESPONSE`"
+fi
+
+echo 'Publishing document' >&2
+curl_ https://www.overleaf.com/project/$DOCUMENT_ID/export/96 \
+  -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' \
+  -H 'X-CSRF-Token: '"$CSRF_TOKEN" \
+  -H 'X-Requested-With: XMLHttpRequest' \
+  --data-urlencode title="$TITLE" \
+  --data-urlencode author="$AUTHOR" \
+  --data-urlencode description="$DESCRIPTION" \
+  --data-urlencode license="$LICENSE" \
+  --data-urlencode showSource="$SHOW_SOURCE" \
+  >$RESPONSE
+if ! grep --silent 'export_v1_id' <$RESPONSE
+then
+  die 10 Publishing failed '(post)': "`cat $RESPONSE`"
+else
+  EXPORT_ID="$(sed -r 's/.*"export_v1_id":(.*)[},].*/\1/' <$RESPONSE)"
+fi
+
+echo '"status_summary":"pending","status_detail":"Starting up"' >$RESPONSE
+while grep --silent -F '"status_summary":"pending"' <$RESPONSE
+do
+  STATUS_SUMMARY="$(sed -r 's/.*"status_summary":"([^"]*)".*/\1/' <$RESPONSE)"
+  STATUS_DETAIL="$(sed -r 's/.*"status_detail":"([^"]*)".*/\1/' <$RESPONSE)"
+  printf 'Waiting for document to be published (%s: %s)\n' "$STATUS_SUMMARY" "$STATUS_DETAIL" >&2
+  curl_ https://www.overleaf.com/project/5c381f90819e564c3d6152cc/export/$EXPORT_ID \
+    >$RESPONSE
+  sleep 5s
+done
+
+if ! grep --silent -F '"status_summary":"succeeded"' <$RESPONSE
+then
+  die 11 Publishing failed '(status)': "`cat $RESPONSE`"
+fi
+
+echo Done! >&2