#!/bin/sh
-# Copyright 2017 - 2020 Paul Hänsch
+# Copyright 2017 - 2021 Paul Hänsch
#
# This is CGIlite.
# A collection of posix shell functions for writing CGI scripts.
# set -o posix # ksh, not portable
setopt -o OCTAL_ZEROES 2>&-
+# Integrated webserver request timeout
+cgilite_timeout=2
+
+# General environment variables
+# $_EXEC - directory containing application itself
+# $_DATA - direcotry where application data may be stored
+# $_BASE - optional prefix for http path, e.g. "/myapp"
+#
+# Programmers should take care to use those variables throughout the
+# application.
+# Variables may be set via CLI argument, in environment, or left as default.
+
+for cgilite_arg in "$@"; do case $cgilite_arg in
+ --exec=*) _EXEC="${cgilite_arg#*=}";;
+ --data=*) _DATA="${cgilite_arg#*=}";;
+ --base=*) _BASE="${cgilite_arg#*=}";;
+esac; done
+unset cgilite_arg
+
+_EXEC="${_EXEC:-${0%/*}}"
+_DATA="${_DATA:-.}"
+_EXEC="${_EXEC%/}" _DATA="${_DATA%/}" _BASE="${_BASE%/}"
+
+export _EXEC _DATA _BASE
+
+# Carriage Return and Line Break characters for convenience
CR="\r"
BR='
'
-cgilite_timeout=2
PATH(){
local str seg out
+ # normalize path
+ # read from stdin if no arguments are provided
+
[ $# -eq 0 ] && str="$(cat)" || str="$*"
while [ "$str" ]; do
seg=${str%%/*}; str="${str#*/}"
[ "${str}" -a "${out}" ] && printf %s "$out" || printf %s/ "${out%/}"
}
-HEX_DECODE='
- s;\\;\\\\;g; :HEXDECODE_X; s;%([^0-9A-F]);\\045\1;g; tHEXDECODE_X;
- # Hexadecimal { %00 - %FF } will be transformed to octal { \000 - \377 } for posix printf
- s;%[0123].;&\\0;g; s;%[4567].;&\\1;g; s;%[89AB].;&\\2;g; s;%[CDEF].;&\\3;g;
- s;%[048C][0-7]\\.;&0;g; s;%[048C][89A-F]\\.;&1;g; s;%[159D][0-7]\\.;&2;g; s;%[159D][89A-F]\\.;&3;g;
- s;%[26AE][0-7]\\.;&4;g; s;%[26AE][89A-F]\\.;&5;g; s;%[37BF][0-7]\\.;&6;g; s;%[37BF][89A-F]\\.;&7;g;
- s;%.[08](\\..);\10;g; s;%.[19](\\..);\11;g; s;%.[2A](\\..);\12;g; s;%.[3B](\\..);\13;g;
- s;%.[4C](\\..);\14;g; s;%.[5D](\\..);\15;g; s;%.[6E](\\..);\16;g; s;%.[7F](\\..);\17;g;
-'
-
HEX_DECODE(){
- printf -- "$(printf %s "$1" |sed -E "$HEX_DECODE")"
+ local pfx="$1" in="$2" out
+ # Print out Data encoded as Hex
+ #
+ # Arguments:
+ # pfx - required, prefix for a hex tupel, e.g. "\x", "%" "\", may be empty
+ # in - required, string to be decoded
+ #
+ # anything that does not constitute a tupel of valid Hex numerals
+ # will be copied to the output literally
+
+ while [ "$in" ]; do
+ case $in in
+ "$pfx"[0-9a-fA-F][0-9a-fA-F]*) in="${in#${pfx}}";;
+ \\*) in="${in#?}"; out="${out}\\\\"; continue;;
+ %*) in="${in#?}"; out="${out}%%"; continue;;
+ *) att="${in%%"${pfx}"*}"; att="${att%%%*}"; att="${att%%\\*}"
+ out="${out}${att}"; in="${in#"${att}"}"; continue;;
+ esac;
+
+ # Hex escapes for printf (e.g. \x41) are not portable
+ # The portable way for Hex output is transforming Hex to Octal
+ # (e.g. \x41 = \101)
+ case $in in
+ [0123]?*) out="${out}\\0";;
+ [4567]?*) out="${out}\\1";;
+ [89aAbB]?*) out="${out}\\2";;
+ [c-fC-F]?*) out="${out}\\3";;
+ esac
+ case $in in
+ [048cC][0-7]*) out="${out}0";;
+ [048cC][89a-fA-F]*) out="${out}1";;
+ [159dD][0-7]*) out="${out}2";;
+ [159dD][89a-fA-F]*) out="${out}3";;
+ [26aAeE][0-7]*) out="${out}4";;
+ [26aAeE][89a-fA-F]*) out="${out}5";;
+ [37bBfF][0-7]*) out="${out}6";;
+ [37bBfF][89a-fA-F]*) out="${out}7";;
+ esac
+ case $in in
+ ?[08]*) out="${out}0";;
+ ?[19]*) out="${out}1";;
+ ?[2aA]*) out="${out}2";;
+ ?[3bB]*) out="${out}3";;
+ ?[4cC]*) out="${out}4";;
+ ?[5dD]*) out="${out}5";;
+ ?[6eE]*) out="${out}6";;
+ ?[7fF]*) out="${out}7";;
+ esac
+ in="${in#?}"
+ in="${in#?}"
+ done
+ printf -- "$out"
}
if [ -z "$REQUEST_METHOD" ]; then
(sleep $cgilite_timeout && kill $$) & cgilite_watchdog=$!
while read REQUEST_METHOD REQUEST_URI SERVER_PROTOCOL; do
+ unset PATH_INFO QUERY_STRING cgilite_headers CONTENT_LENGTH CONTENT_TYPE
+
[ "${SERVER_PROTOCOL#HTTP/1.[01]${CR}}" ] && break
kill $cgilite_watchdog
SERVER_PROTOCOL="${SERVER_PROTOCOL%${CR}}"
- PATH_INFO="$(HEX_DECODE "${REQUEST_URI%\?*}" |PATH)"
+ PATH_INFO="$(HEX_DECODE % "${REQUEST_URI%\?*}" |PATH)"
[ "${REQUEST_URI}" = "${REQUEST_URI#*\?}" ] \
&& QUERY_STRING='' \
|| QUERY_STRING="${REQUEST_URI#*\?}"
- cgilite_headers=''; while read -r hl; do
+ while read -r hl; do
hl="${hl%${CR}}"; [ "$hl" ] || break
case $hl in
'Content-Length: '*) CONTENT_LENGTH="${hl#*: }";;
done
export REMOTE_ADDR SERVER_NAME SERVER_PORT REQUEST_METHOD REQUEST_URI SERVER_PROTOCOL \
- PATH_INFO QUERY_STRING CONTENT_TYPE CONTENT_LENGTH
+ PATH_INFO QUERY_STRING CONTENT_TYPE CONTENT_LENGTH cgilite_headers
# Try to serve multiple requests, provided that script serves a
# Content-Length header.
cgilite_post="$(head -c "$CONTENT_LENGTH")"
fi
+PATH_INFO="$(PATH "/${PATH_INFO#${_BASE}}")"
+
debug(){ [ $# -gt 0 ] && printf '%s\n' "$@" >&2 || tee -a /dev/stderr; }
[ "${DEBUG+x}" ] && env >&2
+# general helper functions, see GET, POST, and REF below
+
cgilite_count(){
printf %s "&$1" \
| grep -oE '&'"$2"'=[^&]*' \
str="${str#*&${name}=}"
cnt=$((cnt - 1))
done
- printf -- "$(printf %s "${str%%&*}" |sed -E 's;\+; ;g;'"$HEX_DECODE")"
+ HEX_DECODE % "$(printf %s "${str%%&*}" |tr + \ )"
}
cgilite_keys(){
| sort -u
}
-GET(){ cgilite_value "${QUERY_STRING}" $@; }
+# Read arguments from GET, POST, or the query string of the referrer (REF).
+# Example:
+# GET varname n
+#
+# where n is number for the Nth occurence of a variable and defaults to 1
+#
+# *_COUNT varname
+# -> returns number of ocurences
+# *_KEYS
+# -> returns list of available varnames
+
+GET(){ cgilite_value "${QUERY_STRING}" "$@"; }
GET_COUNT(){ cgilite_count "${QUERY_STRING}" $1; }
GET_KEYS(){ cgilite_keys "${QUERY_STRING}"; }
-POST(){ cgilite_value "${cgilite_post}" $@; }
+POST(){ cgilite_value "${cgilite_post}" "$@"; }
POST_COUNT(){ cgilite_count "${cgilite_post}" $1; }
POST_KEYS(){ cgilite_keys "${cgilite_post}"; }
-REF(){ cgilite_value "${HTTP_REFERER#*\?}" $@; }
+REF(){ cgilite_value "${HTTP_REFERER#*\?}" "$@"; }
REF_COUNT(){ cgilite_count "${HTTP_REFERER#*\?}" $1; }
REF_KEYS(){ cgilite_keys "${HTTP_REFERER#*\?}"; }
str="${str#*${BR}${1}: }"
printf %s "${str%%${BR}*}"
else
- local var="HTTP_$(printf %s "$1" |tr a-z- A-Z-)"
+ local var="HTTP_$(printf %s "$1" |tr a-z- A-Z_)"
eval "[ \"\$$var\" ] && printf %s \"\$$var\" || return 1"
# eval "printf %s \"\$HTTP_$(printf %s "${1}" |tr a-z A-Z |tr -c A-Z _)\""
fi
}
COOKIE(){
- HEX_DECODE "$(
+ # Read value of cookie
+ HEX_DECODE % "$(
HEADER Cookie \
| grep -oE '(^|; ?)'"$1"'=[^;]*' \
| sed -En "${2:-1}"'{s;^[^=]+=;;; s;\+; ;g; p;}'
# Also escape [, ], and \n for use in html-sh
local str out
[ $# -eq 0 ] && str="$(cat)" || str="$*"
- while [ "$str" ]; do
- case $str in
- \&*) out="${out}&";;
- \<*) out="${out}<";;
- \>*) out="${out}>";;
- \"*) out="${out}"";;
- \'*) out="${out}'";;
- \[*) out="${out}[";;
- \]*) out="${out}]";;
- "${CR}"*) out="${out}
";;
- "${BR}"*) out="${out}
";;
- *) out="${out}${str%"${str#?}"}";;
- esac
- str="${str#?}"
- done
+ while [ "$str" ]; do case $str in
+ \&*) out="${out}&"; str="${str#?}";;
+ \<*) out="${out}<"; str="${str#?}";;
+ \>*) out="${out}>"; str="${str#?}";;
+ \"*) out="${out}""; str="${str#?}";;
+ \'*) out="${out}'"; str="${str#?}";;
+ \[*) out="${out}["; str="${str#?}";;
+ \]*) out="${out}]"; str="${str#?}";;
+ "${CR}"*) out="${out}
"; str="${str#?}";;
+ "${BR}"*) out="${out}
"; str="${str#?}";;
+ *) out="${out}${str%%[]&<>\"\'${CR}${BR}[]*}"; str="${str#"${str%%[]&<>\"\'${CR}${BR}[]*}"}";;
+ esac; done
printf %s "$out"
}
# Escape pathes, so they can be used in link tags and HTTP Headers
local str out
[ $# -eq 0 ] && str="$(cat)" || str="$*"
- while [ "$str" ]; do
- case $str in
- \&*) out="${out}%26";;
- \"*) out="${out}%22";;
- \'*) out="${out}%27";;
- \?*) out="${out}%3F";;
- \#*) out="${out}%23";;
- \[*) out="${out}%5B";;
- \]*) out="${out}%5D";;
- \ *) out="${out}%20";;
- " "*) out="${out}%09";;
- "${CR}"*) out="${out}%0D";;
- "${BR}"*) out="${out}%0A";;
- %*) out="${out}%25";;
- *) out="${out}${str%"${str#?}"}";;
- esac
- str="${str#?}"
- done
+ while [ "$str" ]; do case $str in
+ \&*) out="${out}%26"; str="${str#?}";;
+ \"*) out="${out}%22"; str="${str#?}";;
+ \'*) out="${out}%27"; str="${str#?}";;
+ \?*) out="${out}%3F"; str="${str#?}";;
+ \#*) out="${out}%23"; str="${str#?}";;
+ \[*) out="${out}%5B"; str="${str#?}";;
+ \]*) out="${out}%5D"; str="${str#?}";;
+ \ *) out="${out}%20"; str="${str#?}";;
+ " "*) out="${out}%09"; str="${str#?}";;
+ "${CR}"*) out="${out}%0D"; str="${str#?}";;
+ "${BR}"*) out="${out}%0A"; str="${str#?}";;
+ %*) out="${out}%25"; str="${str#?}";;
+ *) out="${out}${str%%[]&\"\'\?# ${CR}${BR}%[]*}"; str="${str#"${str%%[]&\"\'\?# ${CR}${BR}%[]*}"}";;
+ esac; done
printf %s "$out"
}
}
REDIRECT(){
+ # Trigger redirct and terminate script
printf '%s: %s\r\n' \
Status "303 See Other" \
Content-Length 0 \
--- /dev/null
+#!/bin/awk -f
+#!/opt/busybox/awk -f
+
+# EXPERIMENTAL Markdown processor with minimal dependencies.
+# Meant to support all features of John Grubers basic Markdown
+# + a number of common extensions, mostly inspired by Pandoc Markdown
+
+# Supported Features / TODO:
+# ==========================
+# [x] done [ ] todo [-] not planned ? unsure
+#
+# Basic Markdown - Block elements:
+# -------------------------------
+# - [x] Paragraphs
+# - [x] Double space line breaks
+# - [x] Proper block element nesting
+# - [x] Headings
+# - [x] ATX-Style Headings
+# - [x] Blockquotes
+# - [x] Lists (ordered, unordered)
+# - [x] Code blocks (using indention)
+# - [x] Horizontal rules
+# - [x] Verbatim HTML block (disabled by default)
+#
+# Basic Markdown - Inline elements:
+# ---------------------------------
+# - [x] Links
+# - [x] Reference style links
+# - [x] Emphasis *em*/**strong** (*Asterisk*, _Underscore_)
+# - [x] `code`, also ``code containing `backticks` ``
+# - [x] Images / reference style images
+# - [x] <automatic links>
+# - [x] backslash escapes
+# - [x] Verbatim HTML inline (disabled by default)
+# - [x] HTML escaping
+#
+# NOTE: Set the environment variable MD_HTML=true to enable verbatim HTML
+#
+# Extensions - Block elements:
+# ----------------------------
+# - ? Heading identifiers (php md, pandoc)
+# - [x] Automatic heading identifiers (custom)
+# - [x] Fenced code blocks (php md, pandoc)
+# - [x] Fenced code attributes
+# - [/] Tables
+# - ? Simple table (pandoc)
+# - ? Multiline table (pandoc)
+# - [x] Grid table (pandoc)
+# - [x] Pipe table (php md pandoc)
+# - [x] Line blocks (pandoc)
+# - [x] Task lists (pandoc, custom)
+# - [ ] Definition lists (php md, pandoc)
+# - [-] Numbered example lists (pandoc)
+# - [-] Metadata blocks (pandoc)
+# - [x] Metadata blocks (custom)
+# - [x] Fenced Divs (pandoc)
+#
+# Extensions - Inline elements:
+# ----------------------------
+# - [x] Ignore embedded_underscores (php md, pandoc)
+# - [x] ~~strikeout~~ (pandoc)
+# - [x] ^Superscript^ ~Subscript~ (pandoc)
+# - [-] Bracketed spans (pandoc)
+# - [-] Inline attributes (pandoc)
+# - [x] Image attributes (custom, pandoc inspired, inline only)
+# - [x] Wiki style links [[PageName]] / [[PageName|Link Text]]
+# - [-] TEX-Math (pandoc)
+# - ? Footnotes (php md)
+# - ? Abbreviations (php md)
+# - ? "Curly quotes" (smartypants)
+# - [ ] em-dashes (--) (smartypants old)
+# - ? ... three-dot ellipsis (smartypants)
+# - [-] en-dash (smartypants)
+# - [ ] Automatic em-dash / en-dash
+# - [ ] Automatic -> Arrows <-
+
+function debug(text) { printf "\n---\n%s\n---\n", text > "/dev/stderr"; }
+
+function HTML ( text ) {
+ gsub( /&/, "\\&", text );
+ gsub( /</, "\\<", text );
+ gsub( />/, "\\>", text );
+ gsub( /"/, "\\"", text );
+ gsub( /'/, "\\'", text );
+ gsub( /\\/, "\\\", text );
+ return text;
+}
+
+function inline( line, LOCAL, len, code, href, guard ) {
+ nu = "(\\\\\\\\|\\\\[^\\\\]|[^\\\\_]|_[[:alnum:]])*" # not underline (except when escaped)
+ na = "(\\\\\\\\|\\\\[^\\\\]|[^\\\\\\*])*" # not asterisk (except when escaped)
+ ieu = "_([^_[:space:]]|[^_[:space:]]" nu "[^_[:space:]])_" # inner <em> (underline)
+ isu = "__([^_[:space:]]|[^_[:space:]]" nu "[^_[:space:]])__" # inner <strong> (underline)
+ iea = "\\*([^\\*[:space:]]|[^\\*[:space:]]" na "[^\\*[:space:]])\\*" # inner <em> (asterisk)
+ isa = "\\*\\*([^\\*[:space:]]|[^\\*[:space:]]" na "[^\\*[:space:]])\\*\\*" # inner <strong> (asterisk)
+
+ if ( line ~ /^$/ ) { # Recursion End
+ return "";
+
+ # omit processing of escaped characters
+ } else if ( line ~ /^\\[]\\`\*_\{\}\(\)#\+-\.![]/) {
+ return substr(line, 2, 1) inline( substr(line, 3) );
+
+ # hard brakes
+ } else if ( match(line, /^ \n/) ) {
+ return "<br />\n" inline( substr(line, RLENGTH + 1) );
+
+ # ``code spans``
+ } else if ( match( line, /^`+/) ) {
+ len = RLENGTH
+ guard = substr( line, 1, len )
+ if ( match(line, guard ".*" guard) ) {
+ code = substr( line, len + 1, match( substr(line, len + 1), guard ) - 1)
+ len = 2 * length(guard) + length(code)
+ # strip single surrounding white spaces
+ code = gensub( / (.*) /, "\\1", "1" , code)
+ # escape HTML within code span
+ gsub( /&/, "\\&", code ); gsub( /</, "\\<", code ); gsub( />/, "\\>", code );
+ return "<code>" code "</code>" inline( substr( line, len + 1 ) )
+ }
+
+ # Wiki style links
+ } else if ( match( line, /^\[\[([^\]\|]+)(\|([^\]]+))?\]\]/) ) {
+ len = RLENGTH;
+ href = gensub(/^\[\[([^\]\|]+)(\|([^\]]+))?\]\]/, "\\1", 1, substr(line, 1, len) );
+ text = gensub(/^\[\[([^\]\|]+)(\|([^\]]+))?\]\]/, "\\3", 1, substr(line, 1, len) );
+ if ( ! text ) text = href;
+ return "<a href=\"" HTML(href) "\">" HTML(text) "</a>" inline( substr( line, len + 1) );
+
+ # quick links ("automatic links" in md doc)
+ } else if ( match( line, /^<[a-zA-Z]+:\/\/([-\.[:alnum:]]+)(:[0-9]*)?(\/[^>]*)?>/ ) ) {
+ len = RLENGTH;
+ href = HTML( substr( line, 2, len - 2) );
+ return "<a href=\"" href "\">" href "</a>" inline( substr( line, len + 1) );
+
+ # quick link email
+ } else if ( match( line, /^<[a-zA-Z0-9.!#$%&'\''*+\/=?^_`{|}~-]+@[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*>/ ) ) {
+ len = RLENGTH;
+ href = HTML( substr( line, 2, len - 2) );
+ return "<a href=\"mailto:" href "\">" href "</a>" inline( substr( line, len + 1) );
+
+ # inline links
+ } else if ( match(line, /^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/) ) {
+ len = RLENGTH;
+ text = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\1", 1, substr(line, 1, len) );
+ href = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\2", 1, substr(line, 1, len) );
+ title = gensub(/^\[([^]]+)\]\(([^"\)]+)([[:space:]]+"([^"]+)")?\)/, "\\4", 1, substr(line, 1, len) );
+ if ( title ) {
+ return "<a href=\"" HTML(href) "\" title=\"" HTML(title) "\">" inline( text ) "</a>" inline( substr( line, len + 1) );
+ } else {
+ return "<a href=\"" HTML(href) "\">" inline( text ) "</a>" inline( substr( line, len + 1) );
+ }
+
+ # reference style links
+ } else if ( match(line, /^\[([^]]+)\] ?\[([^]]*)\]/ ) ) {
+ len = RLENGTH;
+ text = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\1", 1, substr(line, 1, len) );
+ id = gensub(/^\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
+ if ( ! id ) id = text;
+ if ( rl_href[id] && rl_title[id] ) {
+ return "<a href=\"" HTML(rl_href[id]) "\" title=\"" HTML(rl_title[id]) "\">" inline(text) "</a>" inline( substr( line, len + 1) );
+ } else if ( rl_href[id] ) {
+ return "<a href=\"" HTML(rl_href[id]) "\">" inline(text) "</a>" inline( substr( line, len + 1) );
+ } else {
+ return "" HTML(substr(line, 1, len)) inline( substr(line, len + 1) );
+ }
+
+ # inline images
+ } else if ( match(line, /^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/) ) {
+ len = RLENGTH;
+ text = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\1", "g", substr(line, 1, len) );
+ href = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\2", "g", substr(line, 1, len) );
+ title = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\4", "g", substr(line, 1, len) );
+ attrib = gensub(/^!\[([^]]+)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\6", "g", substr(line, 1, len) );
+ if ( title && attrib ) {
+ return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\" class=\"" HTML(attrib) "\"/>" inline( substr( line, len + 1) );
+ } else if ( title ) {
+ return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\" />" inline( substr( line, len + 1) );
+ } else if ( attrib ) {
+ return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\" />" inline( substr( line, len + 1) );
+ } else {
+ return "<img src=\"" HTML(href) "\" alt=\"" HTML(text) "\" />" inline( substr( line, len + 1) );
+ }
+
+ # reference style images
+ } else if ( match(line, /^!\[([^]]+)\] ?\[([^]]*)\]/ ) ) {
+ len = RLENGTH;
+ text = gensub(/^!\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\1", 1, substr(line, 1, len) );
+ id = gensub(/^!\[([^\n]+)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
+ if ( ! id ) id = text;
+ if ( rl_href[id] && rl_title[id] ) {
+ return "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\" title=\"" HTML(rl_title[id]) "\" />" inline( substr( line, len + 1) );
+ } else if ( rl_href[id] ) {
+ return "<img src=\"" HTML(rl_href[id]) "\" alt=\"" HTML(text) "\" />" inline( substr( line, len + 1) );
+ } else {
+ return "" HTML(substr(line, 1, len)) inline( substr(line, len + 1) );
+ }
+
+ # ~~strikeout~~ (pandoc)
+ } else if ( match(line, /^~~([[:graph:]]|[[:graph:]]([^~]|~[^~])*[[:graph:]])~~/) ) {
+ len = RLENGTH;
+ return "<del>" inline( substr( line, 3, len - 4 ) ) "</del>" inline( substr( line, len + 1 ) );
+
+ # ^superscript^ (pandoc)
+ } else if ( match(line, /^\^([^[:space:]^]|\\[ ^])+\^/) ) {
+ len = RLENGTH;
+ return "<sup>" inline( substr( line, 2, len - 2 ) ) "</sup>" inline( substr( line, len + 1 ) );
+
+ # ~subscript~ (pandoc)
+ } else if ( match(line, /^~([^[:space:]~]|\\[ ~])+~/) ) {
+ len = RLENGTH;
+ return "<sub>" inline( substr( line, 2, len - 2 ) ) "</sub>" inline( substr( line, len + 1 ) );
+
+ # ignore embedded underscores (pandoc, php md)
+ } else if ( match(line, "^[[:alnum:]](__|_)") ) {
+ return HTML(substr( line, 1, RLENGTH)) inline( substr(line, RLENGTH + 1) );
+
+ # __strong__$
+ } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__$") ) {
+ len = RLENGTH;
+ return "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>" inline( substr( line, len + 1 ) );
+
+ # __strong__
+ } else if ( match(line, "^__(([^_[:space:]]|" ieu ")|([^_[:space:]]|" ieu ")(" nu "|" ieu ")*([^_[:space:]]|" ieu "))__[[:space:][:punct:]]") ) {
+ len = RLENGTH;
+ return "<strong>" inline( substr( line, 3, len - 5 ) ) "</strong>" inline( substr( line, len) );
+
+ # **strong**
+ } else if ( match(line, "^\\*\\*(([^\\*[:space:]]|" iea ")|([^\\*[:space:]]|" iea ")(" na "|" iea ")*([^\\*[:space:]]|" iea "))\\*\\*") ) {
+ len = RLENGTH;
+ return "<strong>" inline( substr( line, 3, len - 4 ) ) "</strong>" inline( substr( line, len + 1 ) );
+
+ # _em_$
+ } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_$") ) {
+ len = RLENGTH;
+ return "<em>" inline( substr( line, 2, len - 2 ) ) "</em>" inline( substr( line, len + 1 ) );
+
+ # _em_
+ } else if ( match(line, "^_(([^_[:space:]]|" isu ")|([^_[:space:]]|" isu ")(" nu "|" isu ")*([^_[:space:]]|" isu "))_[[:space:][:punct:]]") ) {
+ len = RLENGTH;
+ return "<em>" inline( substr( line, 2, len - 3 ) ) "</em>" inline( substr( line, len ) );
+
+ # *em*
+ } else if ( match(line, "^\\*(([^\\*[:space:]]|" isa ")|([^\\*[:space:]]|" isa ")(" na "|" isa ")*([^\\*[:space:]]|" isa "))\\*") ) {
+ len = RLENGTH;
+ return "<em>" inline( substr( line, 2, len - 2 ) ) "</em>" inline( substr( line, len + 1 ) );
+
+ # Macros
+ } else if ( AllowMacros && match( line, /^<<([^>]|>[^>])+>>/) ) {
+ len = RLENGTH;
+ return macro( substr( line, 3, len - 4 ) ) inline(substr(line, len + 1));
+
+ # Verbatim inline HTML
+ } else if ( AllowHTML && match( line, /^(<!--([^-]|-[^-]|--[^>])*-->|<\?([^\?]|\?[^>])*\?>|<![A-Z][^>]*>|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*\]\]>|<\/[A-Za-z][A-Za-z0-9-]*[[:space:]]*>|<[A-Za-z][A-Za-z0-9-]*([[:space:]]+[A-Za-z_:][A-Za-z0-9_\.:-]*([[:space:]]*=[[:space:]]*([[:space:]"'=<>`]+|"[^"]*"|'[^']*'))?)*[[:space:]]*\/?>)/) ) {
+ len = RLENGTH;
+ return substr( line, 1, len) inline(substr(line, len + 1));
+
+ # Literal HTML entities
+ } else if ( match( line, /^&([a-zA-Z]{2,32}|#[0-9]{1,7}|#[xX][0-9a-fA-F]{1,6});/) ) {
+ len = RLENGTH;
+ return substr( line, 1, len ) inline(substr(line, len + 1));
+
+ # Escape lone HTML character
+ } else if ( match( line, /^[&<>"']/) ) {
+ return HTML(substr(line, 1, 1)) inline(substr(line, 2));
+
+ # continue walk over string
+ } else {
+ return substr(line, 1, 1) inline( substr(line, 2) );
+ }
+}
+
+function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib ) {
+ gsub( /^\n+|\n+$/, "", block );
+
+ if ( block == "" ) {
+ return "";
+
+ # HTML #2 #3 #4 $5
+ } else if ( AllowHTML && match( block, /(^|\n) ? ? ?(<!--([^-]|-[^-]|--[^>])*(-->|$)|<\?([^\?]|\?[^>])*(\?>|$)|<![A-Z][^>]*(>|$)|<!\[CDATA\[([^\]]|\][^\]]|\]\][^>])*(\]\]>|$))/) ) {
+ len = RLENGTH; st = RSTART;
+ return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
+
+ # HTML #6
+ } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<\/?(address|article|aside|base|basefont|blockquote|body|caption|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption|figure|footer|form|frame|frameset|h[123456]|head|header|hr|html|iframe|legend|li|link|main|menu|menuitem|nav|noframes|ol|optgroup|option|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr|track|ul)([[:space:]\n>]|\/>)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
+
+ # HTML #1
+ } else if ( AllowHTML && match( tolower(block), /(^|\n) ? ? ?<(script|pre|style)([[:space:]\n>]).*(<\/script>|<\/pre>|<\/style>|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ match( tolower(substr(block, st, len)), /(<\/script>|<\/pre>|<\/style>)/);
+ len = RSTART + RLENGTH;
+ return _block(substr(block, 1, st - 1)) substr(block, st, len) _block(substr(block, st + len));
+
+ # HTML #7
+ } else if ( AllowHTML && match( block, /^ ? ? ?(<\/[A-Za-z][A-Za-z0-9-]*[[:space:]]*>|<[A-Za-z][A-Za-z0-9-]*([[:space:]]+[A-Za-z_:][A-Za-z0-9_\.:-]*([[:space:]]*=[[:space:]]*([[:space:]"'=<>`]+|"[^"]*"|'[^']*'))?)*[[:space:]]*\/?>)([[:space:]]*\n)([^\n]|\n[ \t]*[^\n])*(\n[[:space:]]*\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ return substr(block, st, len) _block(substr(block, st + len));
+
+ # Metadata (custom, block starting with %something)
+ # Metadata is ignored but can be interpreted externally
+ } else if ( match(block, /^%[a-zA-Z]+([[:space:]][^\n]*)?(\n|$)(%[a-zA-Z]+([[:space:]][^\n]*)?(\n|$)|%([[:space:]][^\n]*)?(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
+ len = RLENGTH; st = RSTART;
+ return _block( substr( block, len + 1) );
+
+ # Blockquote (leading >)
+ } else if ( match( block, /^> /) ) {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match(block, /$/);
+ len = RLENGTH; st = RSTART;
+ return "<blockquote>\n" _block( gensub( /(^|\n)> /, "\n", "g", substr(block, 1, st - 1) ) ) "</blockquote>\n\n" \
+ _block( substr(block, st + len) );
+
+ # Pipe Tables (pandoc / php md / gfm )
+ } else if ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?)\n" \
+ "((\\|)?:?(-+:?[\\|+])+:?-+:?(\\|)?)\n" \
+ "((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ) {
+ len = RLENGTH; st = RSTART;
+ #initialize empty arrays
+ split("", talign); split("", tarray);
+ cols = 0; cnt=0; ttext = "";
+
+ # table header and alignment
+ split( gensub( /(^\||\|$)/, "", "g", \
+ gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ )), tarray, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ cols = split( \
+ gensub( /(^\||\|$)/, "", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ ), talign, /[+\|]/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+
+ for( cnt = 1; cnt < cols; cnt++ ) {
+ if (match(talign[cnt], /:-+:/)) talign[cnt]="center";
+ else if (match(talign[cnt], /-+:/)) talign[cnt]="right";
+ else if (match(talign[cnt], /:-+/)) talign[cnt]="left";
+ else talign[cnt]="";
+ }
+
+ ttext = "<thead>\n<tr>"
+ for (cnt = 1; cnt < cols; cnt++)
+ ttext = ttext "<th align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</th>"
+ ttext = ttext "</tr>\n</thead><tbody>\n"
+
+ while ( match(block, "^((\\|)?([^\n]+\\|)+[^\n]+(\\|)?(\n|$))+" ) ){
+ split( gensub( /(^\||\|$)/, "", "g", \
+ gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ )), tarray, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+
+ ttext = ttext "<tr>"
+ for (cnt = 1; cnt < cols; cnt++)
+ ttext = ttext "<td align=\"" talign[cnt] "\">" inline(tarray[cnt]) "</td>"
+ ttext = ttext "</tr>\n"
+ }
+ return "<table>" ttext "</tbody></table>\n" _block(block);
+
+ # Grid Tables (pandoc)
+ } else if ( match(block, "^\\+(-+\\+)+\n" \
+ "(\\|([^\n]+\\|)+\n)+" \
+ "\\+(:?=+:?\\+)+\n" \
+ "((\\|([^\n]+\\|)+\n)+" \
+ "\\+(-+\\+)+(\n|$))+" \
+ ) ) {
+ len = RLENGTH; st = RSTART;
+ #initialize empty arrays
+ split("", talign); split("", tarray); split("", tread);
+ cols = 0; cnt=0; ttext = "";
+
+ # table header and alignment
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ while ( match(block, "^\\|([^\n]+\\|)+\n") ) {
+ cols = split( gensub( /(^\||\|$)/, "", "g", \
+ gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ )), tread, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ for (cnt = 1; cnt < cols; cnt++)
+ tarray[cnt] = tarray[cnt] "\n" tread[cnt];
+ }
+
+ cols = split( \
+ gensub( /(^\+|\+$)/, "", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ ), talign, /\+/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+
+ for (cnt = 1; cnt < cols; cnt++) {
+ if (match(talign[cnt], /:=+:/)) talign[cnt]="center";
+ else if (match(talign[cnt], /=+:/)) talign[cnt]="right";
+ else if (match(talign[cnt], /:=+/ )) talign[cnt]="left";
+ else talign[cnt]="";
+ }
+
+ ttext = "<thead>\n<tr>"
+ for (cnt = 1; cnt < cols; cnt++)
+ ttext = ttext "<th align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</th>"
+ ttext = ttext "</tr>\n</thead><tbody>\n"
+
+ while ( match(block, /^((\|([^\n]+\|)+\n)+\+(-+\+)+(\n|$))+/ ) ){
+ split("", tarray);
+ while ( match(block, /^\|([^\n]+\|)+\n/) ) {
+ split( gensub( /(^\||\|$)/, "", "g", \
+ gensub( /(^|[^\\])\\\|/, "\\1\\|", "g", \
+ substr(block, 1, match(block, /(\n|$)/)) \
+ )), tread, /\|/);
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+ for (cnt = 1; cnt < cols; cnt++)
+ tarray[cnt] = tarray[cnt] "\n" tread[cnt];
+ }
+ block = substr(block, match(block, /(\n|$)/) + 1 );
+
+ ttext = ttext "<tr>"
+ for (cnt = 1; cnt < cols; cnt++)
+ ttext = ttext "<td align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</td>"
+ ttext = ttext "</tr>\n"
+ }
+ return "<table>" ttext "</tbody></table>\n" _block(block);
+
+ # Line Blocks (pandoc)
+ } else if ( match(block, /^\| [^\n]*(\n|$)(\| [^\n]*(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
+ len = RLENGTH; st = RSTART;
+ code = substr(block, 1, len);
+ gsub(/\n[[:space:]]+/, " ", code);
+ gsub(/\n\| /, "\n", code);
+ gsub(/^\| |\n$/, "", code);
+ return "<div class=\"line-block\">" gensub(/\n/, "<br />\n", "g", inline( code )) "</div>\n" \
+ _block( substr( block, len + 1) );
+
+ # Indented Code Block
+ } else if ( match(block, /^( |\t)( *\t*[^ \t\n]+ *\t*)+(\n|$)(( |\t)[^\n]+(\n|$)|[ \t]*(\n|$))*/) ) {
+ len = RLENGTH; st = RSTART;
+ code = substr(block, 1, len);
+ gsub(/(^|\n)( |\t)/, "\n", code);
+ gsub(/^\n|\n+$/, "", code);
+ return "<pre><code>" HTML( code ) "</code></pre>\n" \
+ _block( substr( block, len + 1 ) );
+
+ # Fenced Divs (pandoc, custom)
+ } else if ( match( block, /^(:::+)/ ) ) {
+ guard = substr( block, 1, RLENGTH );
+ code = gensub(/^[^\n]+\n/, "", 1, block);
+ attrib = gensub(/^:::+[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\1", 1, block);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
+ gsub(/(^ | $)/, "", attrib);
+ if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ len = RLENGTH; st = RSTART;
+ return "<div class=\"" attrib "\">" _block( substr(code, 1, st - 1) ) "</div>\n" \
+ _block( substr( code, st + len ) );
+ } else {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+ len = RLENGTH; st = RSTART;
+ return "<p>" inline( substr(block, 1, st - 1) ) "</p>\n" \
+ _block( substr(block, st + len) );
+ }
+
+ # Fenced Code Block (pandoc)
+ } else if ( match( block, /^(~~~+|```+)/ ) ) {
+ guard = substr( block, 1, RLENGTH );
+ code = gensub(/^[^\n]+\n/, "", 1, block);
+ attrib = gensub(/^(~~~+|```+)[ \t]*\{?[ \t]*([^\}\n]*)\}?[ \t]*\n.*$/, "\\2", 1, block);
+ gsub(/[^a-zA-Z0-9_-]+/, " ", attrib);
+ gsub(/(^ | $)/, "", attrib);
+ if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
+ len = RLENGTH; st = RSTART;
+ return "<pre><code class=\"" attrib "\">" HTML( substr(code, 1, st - 1) ) "</code></pre>\n" \
+ _block( substr( code, st + len ) );
+ } else {
+ match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
+ len = RLENGTH; st = RSTART;
+ return "<p>" inline( substr(block, 1, st - 1) ) "</p>\n" \
+ _block( substr(block, st + len) );
+ }
+
+ # Unordered list
+ } else if ( match( block, "^ ? ? ?[-+*][ \t]+[^\n]+(\n|$)" \
+ "(([ \t]*\n)* ? ? ?[-+*][ \t]+[^\n]+(\n|$)" \
+ "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|[^\n]+(\n|$))*" ) ) {
+ list = substr( block, 1, RLENGTH);
+ block = substr( block, RLENGTH + 1);
+ indent = length( gensub(/[-+*][ \t]+[^\n]+.*$/, "", 1, list) );
+
+ gsub("(^|\n) {0," indent "}", "\n", list);
+ return "\n<ul>\n" _list( substr(list, 2) ) "</ul>\n" _block( block );
+
+ # Ordered list
+ } else if ( match( block, "^ ? ? ?([0-9]+|#)\\.[ \t]+[^\n]+(\n|$)" \
+ "(([ \t]*\n)* ? ? ?([0-9]+|#)\\.[ \t]+[^\n]+(\n|$)" \
+ "|([ \t]*\n)*( ? ? ?\t| +)[^\n]+(\n|$)" \
+ "|[^\n]+(\n|$))*" ) ) {
+ list = substr( block, 1, RLENGTH);
+ block = substr( block, RLENGTH + 1);
+ indent = length( gensub(/([0-9]+|#)\.[ \t]+[^\n]+.*$/, "", 1, list) );
+
+ gsub("(^|\n) {0," indent "}", "\n", list);
+ return "\n<ol>\n" _list( substr(list, 2) ) "</ol>\n" _block( block );
+
+ # First Order Heading
+ } else if ( match( block, /^[^\n]+\n===+(\n|$)/ ) ) {
+ len = RLENGTH;
+ HL[1]++; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
+ return "<h1 id=\"" HL[1] " - " HTML(gensub( /\n.*$/, "", "g", block )) "\">" \
+ inline( gensub( /\n.*$/, "", "g", block ) ) \
+ "<a class=\"anchor\" href=\"#" HL[1] " - " \
+ HTML(gensub( /\n.*$/, "", "g", block )) "\"></a></h1>\n\n" \
+ _block( substr( block, len + 1 ) );
+
+ # Second Order Heading
+ } else if ( match( block, /^[^\n]+\n---+(\n|$)/ ) ) {
+ len = RLENGTH;
+ HL[2]++; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
+ return "<h2 id=\"" HL[1] "." HL[2] " - " HTML(gensub( /\n.*$/, "", "g", block )) "\">" \
+ inline( gensub( /\n.*$/, "", "g", block ) ) \
+ "<a class=\"anchor\" href=\"#" HL[1] "." HL[2] " - " \
+ HTML(gensub( /\n.*$/, "", "g", block )) "\"></a></h2>\n\n" \
+ _block( substr( block, len + 1) );
+
+ # Nth Order Heading
+ } else if ( match( block, /^#{1,6}[ \t]*[^\n]+([ \t]*#*)(\n|$)/ ) ) {
+ len = RLENGTH;
+ hlvl = length( gensub( /^(#{1,6}).*$/, "\\1", "g", block ) );
+ htxt = gensub(/^#{1,6}[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[^\n#])+)([ \t]*#*)(\n.*)?$/, "\\1", 1, block);
+ HL[hlvl]++; for ( n = hlvl + 1; n < 7; n++) { HL[n] = 0;}
+ hid = HL[1]; for ( n = 2; n <= hlvl; n++) { hid = hid "." HL[n] ; }
+ return "<h" hlvl " id=\"" hid " - " HTML(htxt) "\">" inline( htxt ) \
+ "<a class=\"anchor\" href=\"#" hid "\"></a></h" hlvl ">\n\n" \
+ _block( substr( block, len + 1) );
+
+ # Split paragraphs
+ } else if ( match( block, /(^|\n)[[:space:]]*(\n|$)/) ) {
+ len = RLENGTH; st = RSTART;
+ return _block( substr(block, 1, st - 1) ) "\n" \
+ _block( substr(block, st + len) );
+
+ # Horizontal rule
+ } else if ( match( block, /(^|\n) ? ? ?((\* *){3,}|(- *){3,}|(_ *){3,})($|\n)/) ) {
+ len = RLENGTH; st = RSTART;
+ return _block(substr(block, 1, st - 1)) "<hr />\n" _block(substr(block, st + len));
+
+ # Plain paragraph
+ } else {
+ return "<p>" inline(block) "</p>\n";
+ }
+}
+
+function _list( block, last, LOCAL, p) {
+ if ( ! length(block) ) return "";
+ gsub(/^([-+*]|[0-9]+\.|#\.)( ? ? ?|\t)/, "", block)
+
+ # slice next list item from input
+ if ( match( block, /\n([-+*]|[0-9]+\.|#\.)[ \t]+[^\n]+/) ) {
+ p = substr( block, 1, RSTART);
+ block = substr( block, RSTART + 1);
+ } else {
+ p = block; block = "";
+ }
+ sub( /\n +([-+*]|[0-9]+\.|#\.)/, "\n&", p );
+
+ # if this should be a paragraph item
+ # either previous item (last) or current item (p) contains blank lines
+ if (match(last, /\n[[:space:]]*\n/) || match(p, /\n[[:space:]]*\n/) ) {
+ last = p; p = _block(p);
+ } else {
+ last = p; p = _block(p);
+ sub( /^<p>/, "", p );
+ sub( /<\/p>\n/, "", p );
+ }
+ sub( /\n$/, "", p );
+
+ # Task List (pandoc, custom)
+ if ( p ~ /^\[ \].*/ ) { return "<li class=\"task pending\"><input type=checkbox disabled />" \
+ substr(p, 4) "</li>\n" _list( block, last );
+ } else if ( p ~ /^\[-\].*/ ) { return "<li class=\"task negative\"><input type=checkbox disabled />" \
+ substr(p, 4) "</li>\n" _list( block, last );
+ } else if ( p ~ /^\[\?\].*/ ) { return "<li class=\"task unsure\"><input type=checkbox disabled />" \
+ substr(p, 4) "</li>\n" _list( block, last );
+ } else if ( p ~ /^\[\/\].*/ ) { return "<li class=\"task partial\"><input type=checkbox disabled />" \
+ substr(p, 4) "</li>\n" _list( block, last );
+ } else if ( p ~ /^\[[xX]\].*/ ) { return "<li class=\"task done\"><input type=checkbox disabled checked />" \
+ substr(p, 4) "</li>\n" _list( block, last );
+ } else if ( p ~ /^<p>\[ \].*/ ) { return "<li class=\"task pending\"><p><input type=checkbox disabled />" \
+ substr(p, 7) "</li>\n" _list( block, last );
+ } else if ( p ~ /^<p>\[-\].*/ ) { return "<li class=\"task negative\"><p><input type=checkbox disabled />" \
+ substr(p, 7) "</li>\n" _list( block, last );
+ } else if ( p ~ /^<p>\[\?\].*/ ) { return "<li class=\"task unsure\"><p><input type=checkbox disabled />" \
+ substr(p, 7) "</li>\n" _list( block, last );
+ } else if ( p ~ /^<p>\[\/\].*/ ) { return "<li class=\"task partial\"><p><input type=checkbox disabled />" \
+ substr(p, 7) "</li>\n" _list( block, last );
+ } else if ( p ~ /^<p>\[[xX]\].*/ ) { return "<li class=\"task done\"><p><input type=checkbox disabled checked />" \
+ substr(p, 7) "</li>\n" _list( block, last );
+ } else { return "<li>" p "</li>\n" _list( block, last ); }
+}
+
+BEGIN {
+ # Global Vars
+ file = ""; rl_href[""] = ""; rl_title[""] = "";
+ if (ENVIRON["MD_HTML"] == "true") { AllowHTML = "true"; }
+ HL[1] = 0; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
+
+ # Buffering of full file ist necessary, e.g. to find reference links
+ while (getline) { file = file $0 "\n"; }
+ # Clean up MS-DOS line breaks
+ gsub(/\r\n/, "\n", file);
+
+ # Fill array of reference links
+ f = file; rl_id;
+ re_reflink = "(^|\n) ? ? ?\\[([^]\n]+)\\]: ([^ \t\n]+)(\n?[ \t]+(\"([^\"]+)\"|'([^']+)'|\\(([^)]+)\\)))?(\n|$)";
+ # /(^|\n) ? ? ?\[([^]\n]+)\]: ([^ \t\n]+)(\n?[ \t]+("([^"]+)"|'([^']+)'|\(([^)]+)\)))?(\n|$)/
+ while ( match(f, re_reflink ) ) {
+ rl_id = gensub( re_reflink, "\\2", 1, substr(f, RSTART, RLENGTH) );
+ rl_href[rl_id] = gensub( re_reflink, "\\3", 1, substr(f, RSTART, RLENGTH) );
+ rl_title[rl_id] = gensub( re_reflink, "\\5", 1, substr(f, RSTART, RLENGTH) );
+ f = substr(f, RSTART + RLENGTH);
+ rl_title[rl_id] = substr( rl_title[rl_id], 2, length(rl_title[rl_id]) - 2 );
+ if ( rl_href[rl_id] ~ /<.*>/ ) rl_href[rl_id] = substr( rl_href[rl_id], 2, length(rl_href[rl_id]) - 2 );
+ }
+ # Clear reflinks from File
+ while( gsub(re_reflink, "\n", file ) );
+ # for (n in rl_href) { debug(n " | " rl_href[n] " | " rl_title[n] ); }
+
+ # Run Block Processing -> The Actual Markdown!
+ printf "%s", _block( file );
+}
--- /dev/null
+#!/bin/sh
+
+[ -n "$include_users" ] && return 0
+include_users="$0"
+
+. "${_EXEC}/cgilite/session.sh"
+. "${_EXEC}/cgilite/storage.sh"
+
+SENDMAIL=${SENDMAIL-sendmail}
+
+USER_REGISTRATION="${USER_REGISTRATION-true}"
+USER_REQUIREEMAIL="${USER_REQUIREEMAIL-true}"
+USER_ACCOUNTPAGE="${USER_ACCOUNTPAGE}"
+
+USER_ACCOUNTEXPIRE="${USER_ACCOUNTEXPIRE:-$((86400 * 730))}"
+USER_CONFIRMEXPIRE="${USER_CONFIRMEXPIRE:-86400}"
+
+MAILFROM="${MAILDOMAIN-noreply@${HTTP_HOST%:*}}"
+
+HTTP_HOST="$(HEADER Host)"
+
+[ "$HTTPS" ] && SCHEMA=https || SCHEMA=http
+
+# == FILE FORMAT ==
+# UID UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+# (pending|active|deleted)
+
+# == GLOBALS ==
+UNSET_USER='unset \
+ USER_ID USER_NAME USER_STATUS USER_EMAIL USER_PWSALT USER_PWHASH \
+ USER_EXPIRE USER_DEVICES USER_FUTUREUSE
+'
+
+LOCAL_USER='local \
+ USER_ID USER_NAME USER_STATUS USER_EMAIL USER_PWSALT USER_PWHASH \
+ USER_EXPIRE USER_DEVICES USER_FUTUREUSE
+'
+
+unset USER_IDMAP
+eval "$UNSET_USER"
+
+user_db="${user_db:-${_DATA}/users.db}"
+
+read_user() {
+ local user="$1"
+
+ # Global exports
+ USER_ID='' USER_NAME='' USER_STATUS='' USER_EMAIL='' USER_PWSALT=''
+ USER_PWHASH='' USER_EXPIRE='' USER_DEVICES='' USER_FUTUREUSE=''
+
+ if [ $# -eq 0 ]; then
+ read -r USER_ID USER_NAME USER_STATUS USER_EMAIL USER_PWSALT USER_PWHASH \
+ USER_EXPIRE USER_DEVICES USER_FUTUREUSE
+ elif [ "$user" -a -f "$user_db" -a -r "$user_db" ]; then
+ read -r USER_ID USER_NAME USER_STATUS USER_EMAIL USER_PWSALT USER_PWHASH \
+ USER_EXPIRE USER_DEVICES USER_FUTUREUSE <<-EOF
+ $(grep "^${user} " "${user_db}")
+ EOF
+ fi
+ if [ "$USER_ID" -a "${USER_EXPIRE:-0}" -gt "$_DATE" ]; then
+ USER_NAME="$(UNSTRING "$USER_NAME")"
+ USER_EMAIL="$(UNSTRING "$USER_EMAIL")"
+ USER_DEVICES="$(UNSTRING "$USER_DEVICES")"
+ unset USER_PWSALT USER_PWHASH
+ else
+ eval "$UNSET_USER"
+ return 1
+ fi
+}
+
+update_user() {
+ # internal function for user update
+ local uid="$1" uname status email pwsalt pwhash expire devices futureuse
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ local arg
+
+ for arg in "$@"; do case $arg in
+ uname=*) uname="${arg#*=}";;
+ status=*) status="${arg#*=}";;
+ email=*) email="${arg#*=}";;
+ password=*) pwsalt="$(randomid)"; pwhash="$(user_pwhash "$pwsalt" "${arg#*=}")";;
+ expire=*) expire="${arg#*=}";;
+ devices=*) devices="${arg#*=}";;
+ esac; done
+
+ if LOCK "$user_db"; then
+ while read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES \
+ FUTUREUSE; do
+ if [ "$UID_" = "$uid" ]; then
+ printf '%s %s %s %s %s %s %i %s %s\n' \
+ "$uid" "$(STRING "${uname-$(UNSTRING "$UNAME")}")" \
+ "${status:-${status-${STATUS}}${status+\\}}" \
+ "${email:-${email-${EMAIL}}${email+\\}}" \
+ "${pwsalt:-${PWSALT}}" "${pwhash:-${PWHASH}}" \
+ "${expire:-$((_DATE + USER_ACCOUNTEXPIRE))}" \
+ "$(STRING "${devices-$(UNSTRING "$DEVICES")}")" \
+ "${FUTUREUSE:-\\}"
+ elif [ "$STATUS" = pending -a ! "$EXPIRE" -ge "$_DATE" ]; then
+ # omit expired invitations from output
+ :
+ else
+ printf '%s %s %s %s %s %s %i %s %s\n' \
+ "$UID_" "$UNAME" "$STATUS" "$EMAIL" "$PWSALT" "$PWHASH" \
+ "$EXPIRE" "$DEVICES" "$FUTUREUSE"
+ fi
+ done <"$user_db" >"${user_db}.$$"
+ mv -- "${user_db}.$$" "$user_db"
+ RELEASE "$user_db"
+ else
+ return 1
+ fi
+}
+
+new_user(){
+ local user="${1:-$(timeid)}"
+ shift 1
+
+ if LOCK "$user_db"; then
+ if grep -q "^${user} " "$user_db"; then
+ RELEASE "$user_db"
+ return 1
+ fi
+ printf '%s \\ %s \\ \\ \\ %i \\ \\\n' \
+ "$user" "pending" "$(( _DATE + USER_CONFIRMEXPIRE ))" >>"$user_db"
+ else
+ return 1
+ fi
+
+ if [ $# -eq 0 ]; then
+ RELEASE "$user_db"
+ return 0
+ elif update_user "$user" "$@"; then
+ return 0
+ else
+ RELEASE "$user_db"
+ return 1
+ fi
+}
+
+user_idmap(){
+ local uid="$1" ret
+ eval "$LOCAL_USER"
+
+ if [ ! "$USER_IDMAP" ]; then
+ while read_user; do
+ USER_IDMAP="${USER_IDMAP}${USER_ID} ${USER_NAME}${BR}"
+ done <"$user_db"
+ fi
+ if [ "$uid" -a "$USER_IDMAP" != "${USER_IDMAP##*${uid} }" ]; then
+ ret="${USER_IDMAP##*${uid} }"; ret="${ret%%${BR}*}";
+ printf '%s\n' "$ret"
+ return 0
+ elif [ "$uid" ]; then
+ return 1
+ else
+ printf '%s' "$USER_IDMAP"
+ return 0
+ fi
+}
+
+user_idof(){
+ local name="$(STRING "$1")" ret
+ [ "$USER_IDMAP" ] || user_idmap >/dev/null
+
+ if [ "${name%\\}" -a "$USER_IDMAP" != "${USER_IDMAP% ${name}${BR}*}" ]; then
+ ret="${USER_IDMAP% ${name}${BR}*}"; ret="${ret##*${BR}}"
+ printf '%s\n' "$ret"
+ return 0
+ else
+ return 1
+ fi
+}
+
+user_checkname(){
+ { [ $# -gt 0 ] && printf %s "$*" || cat; } \
+ | sed -nE '
+ :X; $!{N;bX;}
+ s;[ \t\r\n]+; ;g;
+ s;^ ;;; s; $;;;
+ /@/d;
+ /^[a-zA-Z][a-zA-Z0-9 -~]{2,127}$/!d;
+ p;
+ '
+}
+
+user_checkemail(){
+ { [ $# -gt 0 ] && printf %s "$*" || cat; } \
+ | sed -nE '
+ # W3C recommended email regex
+ # https://html.spec.whatwg.org/multipage/input.html#email-state-(type=email)
+ /^[a-zA-Z0-9.!#$%&'\''*+\/=?^_`{|}~-]+@[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/p;
+ '
+}
+
+user_nameexist(){
+ local uname="$(STRING "$1")"
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ [ -f "$user_db" -a -r "$user_db" ] \
+ && while read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE; do
+ [ "$EXPIRE" -gt "$_DATE" -a "$UNAME" = "$uname" ] && return 0
+ done <"$user_db"
+ return 1
+}
+
+user_emailexist(){
+ local email="$(STRING "$1")"
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ [ -f "$user_db" -a -r "$user_db" ] \
+ && while read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE; do
+ [ "$EXPIRE" -gt "$_DATE" -a "$EMAIL" = "$email" ] && return 0
+ done <"$user_db"
+ return 1
+}
+
+user_pwhash(){
+ local salt="$1" secret="$2" hash
+ hash="$(printf '%s\n%s\n' "$secret" "$salt" |sha256sum)"
+ printf '%s\n' "${hash%% *}"
+}
+
+user_register(){
+ # reserve account, send registration mail
+ # preliminary uid, expiration, signature
+ local uid="$(timeid)"
+ local uname="$(POST uname |user_checkname)"
+ local email="$(POST email |user_checkemail)"
+ local pwsalt="$(randomid)"
+ local pw="$(POST pw |grep -m1 -xE '.{6,}' )" pwconfirm="$(POST pwconfirm)"
+
+ if [ "$USER_REGISTRATION" != true -a -s "$user_db" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_REGISTRATION_DISABLED"
+ fi
+
+ if [ "$USER_REQUIREEMAIL" = true ]; then
+ if [ ! "email" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_EMAIL_INVALID"
+ elif user_emailexist "$email"; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_EMAIL_EXISTS"
+ elif new_user "$uid" status=pending email="$email" expire="$((_DATE + USER_CONFIRMEXPIRE))"; then
+ debug "Sending Activation Link:" \
+ "${SCHEMA}://${HTTP_HOST}${_BASE}${PATH_INFO}?user_confirm=${uid}+$(session_mac "$uid")"
+ "$SENDMAIL" -t -f "$MAILFROM" <<-EOF
+ From: ${MAILFROM}
+ To: ${email}
+ Subject: Your account registration at ${HTTP_HOST%:*}
+
+ Someone tried to sign up for a user account using this email address.
+
+ You can activate your account using this link:
+
+ ${SCHEMA}://${HTTP_HOST}${_BASE}${PATH_INFO}?user_confirm=${uid}+$(session_mac "$uid")
+
+ This registration link will expire after $((USER_CONFIRMEXPIRE / 3600)) hours.
+
+ If you did not request an account at ${HTTP_HOST%:*}, then someone else
+ probably entered your email address by accident. In this case you shoud
+ simply ignore this message and we will remove your email address from
+ our database within the next day.
+
+ This is an automatic email. Any direct reply will not be received.
+ Your Account Registration Robot.
+ EOF
+ REDIRECT "${_BASE}${PATH_INFO}#USER_REGISTER_CONFIRM"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_USER_NOLOCK"
+ fi
+
+ elif [ "$USER_REQUIREEMAIL" != true ]; then
+ if [ ! "$uname" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_UNAME_INVALID"
+ elif user_nameexist "$uname"; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_UNAME_EXISTS"
+ elif [ ! "$pw" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_PW_EMPTYTOOSHORT"
+ elif [ "$pw" != "$pwconfirm" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_PW_MISMATCH"
+ elif new_user "$uid" uname="$uname" status=active email="$email" password="$pw" expire="$((_DATE + USER_ACCOUNTEXPIRE))"; then
+ SESSION_COOKIE new
+ SESSION_BIND user_id "$uid"
+
+ if [ "$USER_ACCOUNTPAGE" ]; then
+ REDIRECT "${USER_ACCOUNTPAGE}"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#USER_REGISTER_CONFIRM"
+ fi
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_USER_NOLOCK"
+ fi
+ fi
+}
+
+user_invite(){
+ local uid="$(timeid)"
+ local email="$(POST email |user_checkemail)"
+ local message="$(POST message)"
+
+ if [ ! "email" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_EMAIL_INVALID"
+ elif user_emailexist "$email"; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_EMAIL_EXISTS"
+ elif new_user "$uid" status=pending email="$email" expire="$((_DATE + USER_CONFIRMEXPIRE))"; then
+ debug "Sending Invitation Link:" \
+ "${SCHEMA}://${HTTP_HOST}${_BASE}${PATH_INFO}?user_confirm=${uid}+$(session_mac "$uid")"
+ "$SENDMAIL" -t -f "$MAILFROM" <<-EOF
+ From: ${MAILFROM}
+ To: ${email}
+ Subject: You have been invited to ${HTTP_HOST%:*}
+
+ ${USER_NAME:-Someone} has offered an invitation to this email address.
+
+ ${message}
+
+ You can create your account using this link:
+
+ ${SCHEMA}://${HTTP_HOST}${_BASE}${PATH_INFO}?user_confirm=${uid}+$(session_mac "$uid")
+
+ This registration link will expire after $((USER_CONFIRMEXPIRE / 3600)) hours.
+
+ If you do not know what this is about, then someone else probably
+ entered your email address by accident. In this case you shoud
+ simply ignore this message and we will remove your email address from
+ our database within the next day.
+
+ This is an automatic email. Any direct reply will not be received.
+ Your Account Registration Robot.
+ EOF
+ REDIRECT "${_BASE}${PATH_INFO}#USER_REGISTER_CONFIRM"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_USER_NOLOCK"
+ fi
+}
+
+user_confirm(){
+ # enable account
+ eval "$LOCAL_USER"
+ local uid="$(POST uid |checkid || printf invalid)"
+ local signature="$(POST signature)"
+ local uname="$(POST uname |user_checkname)"
+ local pwsalt="$(randomid)"
+ local pw="$(POST pw |grep -m1 -xE '.{6,}' )" pwconfirm="$(POST pwconfirm)"
+
+ read_user "${uid}"
+
+ if [ "$signature" != "$(session_mac "$uid")" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_LINK_INVALID"
+ elif [ ! "$uname" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_UNAME_INVALID"
+ elif user_nameexist "$uname"; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_UNAME_EXISTS"
+ elif [ ! "$pw" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_PW_EMPTYTOOSHORT"
+ elif [ "$pw" != "$pwconfirm" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_PW_MISMATCH"
+ elif [ "$USER_STATUS" != pending -o \! "$USER_EXPIRE" -gt "$_DATE" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}?${QUERY_STRING}#ERROR_LINK_INVALID"
+ elif update_user "$USER_ID" uname="$uname" status=active password="$pw"; then
+ SESSION_COOKIE new
+ SESSION_BIND user_id "$USER_ID"
+ if [ "$USER_ACCOUNTPAGE" ]; then
+ REDIRECT "${USER_ACCOUNTPAGE}"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}?user_register=confirm#USER_REGISTER_CONFIRM"
+ fi
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_USER_NOLOCK"
+ fi
+}
+
+user_login(){
+ # set cookie
+ # keep logged in - device cookie?
+ # initialize new session!
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ local uname="$(POST uname |STRING)" pw="$(POST pw)"
+
+ [ -f "$user_db" -a -r "$user_db" ] \
+ && while read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE; do
+ if [ "$UNAME" = "$uname" -o "$EMAIL" = "$uname" ]; then
+ if [ "$STATUS" = active -a "$EXPIRE" -gt "$_DATE" -a "$PWHASH" = "$(user_pwhash "$PWSALT" "$pw")" ]; then
+ SESSION_COOKIE new
+ SESSION_BIND user_id "$UID_"
+ REDIRECT "${_BASE}${PATH_INFO}#USER_LOGGED_IN"
+ fi
+ fi
+ done <"$user_db"
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_INVALID_LOGIN"
+}
+
+user_logout(){
+ # destroy cookie, destroy session
+ # keep device cookie
+ new_session
+ SESSION_COOKIE new
+ SET_COOKIE 0 user_id="" Path="/${_BASE#/}" SameSite=Strict HttpOnly
+ REDIRECT "${_BASE}${PATH_INFO}#USER_LOGGED_OUT"
+}
+
+user_update(){
+ # todo: username update, email update / email confirm
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ # local uname="$(POST uname |STRING)"
+ local uid oldpw pw pwconfirm
+
+ uid="$(POST uid)"
+ oldpw="$(POST oldpw)"
+ pw="$(POST pw |grep -xE '.{6}')"
+ pwconfirm="$(POST pwconfirm)"
+
+
+ read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE <<-EOF
+ $(grep "^${uid} " "$user_db")
+ EOF
+
+ if [ "$UID_" = "$USER_ID" -a "$PWHASH" = "$(user_pwhash "$PWSALT" "$oldpw")" ]; then
+ if [ "$pw" -a "$pw" = "$pwconfirm" ]; then
+ update_user "${uid}" password="$pw"
+ REDIRECT "${_BASE}${PATH_INFO}#UPDATE_SUCCESS"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_PWMISMATCH"
+ fi
+ elif [ "$UID_" = "$USER_ID" ]; then
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_INVALID_AUTH_PASSWORD"
+ else
+ REDIRECT "${_BASE}${PATH_INFO}#ERROR_NOTLOGGEDIN"
+ fi
+}
+
+user_recover(){
+ # send recover link
+ :
+}
+user_disable(){
+ :
+}
+
+read_user "$(SESSION_VAR user_id)"
+[ "$USER_STATUS" -a "$USER_STATUS" != active ] && eval $UNSET_USER
+
+[ "$REQUEST_METHOD" = POST ] && case "$(POST action)" in
+ user_register) user_register ;;
+ user_confirm) user_confirm ;;
+ user_invite) user_invite ;;
+ user_login) user_login ;;
+ user_logout) user_logout ;;
+ user_update) user_update ;;
+ user_recover)
+ :;;
+ user_disable)
+ :;;
+esac
+
+export USER_ID USER_NAME USER_STATUS USER_EMAIL USER_PWSALT USER_PWHASH \
+ USER_EXPIRE USER_DEVICES USER_FUTUREUSE
+
+
+w_user_update(){
+ if [ ! "$USER_ID" ]; then
+ cat <<-EOF
+ [div #user_update .nouser
+ This page can only be used by registered users
+ ]
+ EOF
+ else
+ cat <<-EOF
+ [form #user_update method=POST
+ [hidden "uid" "$USER_ID"]
+ [p .username Logged in as $USER_NAME]
+ [input type=password name=oldpw placeholder="Current Passphrase"]
+ [input type=password name=pw placeholder="New Passphrase" pattern=".{6,}"]
+ [input type=password name=pwconfirm placeholder="Confirm New Passphrase" pattern=".{6,}"]
+ [submit "action" "user_update" Update Passphrase]
+ ]
+ EOF
+ fi
+}
+
+w_user_register(){
+ if [ "$(GET user_confirm)" ]; then
+ w_user_confirm
+ elif [ "$USER_REGISTRATION" != true -a -s "$user_db" ]; then
+ cat <<-EOF
+ [div #user_register .disabled
+ User Registration is disabled.
+ ]
+ EOF
+ elif [ "$USER_REQUIREEMAIL" = true ]; then
+ cat <<-EOF
+ [form #user_register .registeremail method=POST
+ [p We will send an activation mail to your email address.
+ You can continue the signup process when you click on the
+ activation link in this email.]
+ [input type=email name=email placeholder="Email"]
+ [submit "action" "user_register" Sign Up]
+ ]
+ EOF
+ elif [ "$USER_REQUIREEMAIL" != true ]; then
+ cat <<-EOF
+ [form #user_register .registername method=POST
+ [input name=uname placeholder="Choose Username" tooltip="Your username may contain any character but the @ sign. It must be at least 3 characters long, and it must start with a letter." pattern="^\[\\\\p{L}\]\[\\\\p{L}0-9 -~\]{2,127}$" autocomplete=off]
+ [input type=password name=pw placeholder="Choose Passphrase" pattern=".{6,}"]
+ [input type=password name=pwconfirm placeholder="Confirm Passphrase" pattern=".{6,}"]
+ [submit "action" "user_register" Sign Up]
+ ]
+ EOF
+ fi
+}
+
+w_user_confirm(){
+ local UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE
+ local user_confirm="$(GET user_confirm)"
+ local uid="${user_confirm% *}" signature="${user_confirm#* }"
+
+ if [ "$signature" = "$(session_mac "$uid")" ]; then
+ read -r UID_ UNAME STATUS EMAIL PWSALT PWHASH EXPIRE DEVICES FUTUREUSE <<-EOF
+ $(grep "^${uid} " "$user_db")
+ EOF
+ if [ "$STATUS" = pending -a "$EXPIRE" -gt "$_DATE" ]; then
+ cat <<-EOF
+ [form #user_confirm method=POST
+ [input type=hidden name=uid value="${uid}"]
+ [input type=hidden name=signature value="${signature}"]
+ $([ "$EMAIL" != '\' ] && printf \
+ '[input disabled=disabled value="%s" placeholder="Email"]' "$(UNSTRING "$EMAIL" |HTML)"
+ )
+ [input name=uname placeholder="Choose Username" tooltip="Your username may contain any character but the @ sign. It must be at least 3 characters long, and it must start with a letter." pattern="^\[\\\\p{L}\]\[\\\\p{L}0-9 -~\]{2,127}$" autocomplete=off]
+ [input type=password name=pw placeholder="Choose Passphrase" pattern=".{6,}"]
+ [input type=password name=pwconfirm placeholder="Confirm Passphrase" pattern=".{6,}"]
+ [submit "action" "user_confirm" Finish Registration]
+ ]
+ EOF
+ else
+ cat <<-EOF
+ [div #user_confirm .expired
+ [p This activation link is not valid anymore.]
+ ]
+ EOF
+ fi
+ else
+ cat <<-EOF
+ [div #user_confirm .invalid
+ [p This activation link is invalid. Make sure you copied the whole activation link from your email and be careful not to include any line breaks.]
+ ]
+ EOF
+ fi
+}
+
+w_user_invite(){
+ local uid invlink
+
+ if [ "$(GET user_confirm)" ]; then
+ w_user_confirm
+ elif [ "$USER_ID" -a "$SENDMAIL" ]; then
+ cat <<-EOF
+ [form #user_invite method=POST
+ [input placeholder="Email Recipient" name=email autocomplete=off]
+ [textarea name="message" placeholder="Message to recipient" . ]
+ [submit "action" "user_invite" Send Invitation]
+ ]
+ EOF
+ elif [ "$USER_ID" ]; then
+ uid="$(timeid)"
+ new_user "$uid" status=pending expire="$((_DATE + USER_CONFIRMEXPIRE))"
+ invlink="${SCHEMA}://${HTTP_HOST}${_BASE}${PATH_INFO}?user_confirm=${uid}+$(session_mac "$uid")"
+ debug "New Invitation Link: $invlink"
+ cat <<-EOF
+ [div #user_invite .link
+ [p An anonymous user account has been set up. Send the following link to the intended user, so they may claim their account. The link will remain valid for $((USER_CONFIRMEXPIRE / 3600)) hours.]
+ [a href="$(HTML "$invlink")" . $(HTML "$invlink")]
+
+ [p [a href="#" . Set up another account]]
+ ]
+ EOF
+ else
+ cat <<-EOF
+ [div #user_invite .notallowed
+ Only registered users may send an invitation to another user.
+ ]
+ EOF
+ fi
+}
+
+w_user_login(){
+ if [ ! "$USER_ID" ]; then
+ cat <<-EOF
+ [form #user_login .login method=POST
+ [input name=uname placeholder="Username or Email" autocomplete=off]
+ [input type=password name=pw placeholder="Passphrase"]
+ [submit "action" "user_login" Login]
+ ]
+ EOF
+ elif [ "$USER_ID" ]; then
+ cat <<-EOF
+ [form #user_login .logout method=POST
+ [p Logged in as [span . $(HTML ${USER_NAME})]]
+ [submit "action" "user_logout" Logout]
+ ]
+ EOF
+ fi
+}
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