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98 lines
2.5 KiB
Bash
98 lines
2.5 KiB
Bash
## #nuweb - Server-side HTTP scripting library for BASH
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##
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## *nuweb* is set of BASH function to ease implementation of CGI scripts using
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## BASH. Idea behind it, is to allow for reuse of existing shell scripts
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## and command-line utilities, without need to duplicate functionality.
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##
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## *nuweb* is based on *nux-env*, which allows large code-share with *nux-env*
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## command line tools and use of *nux-env* libraries.
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##
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## *nuweb* is separated into several components:
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##
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## nuweb::
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## this library, base functionality
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## nuweb/router:: router support functionality - dispatch of code
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## based on path and query parameters
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## nuweb/html::
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## basic support for generating HTML content
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##
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## #Public functions:
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## nuweb.status:: <code>
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## Sets HTTP response status code.
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## NOTE: If any content was already returned this function does not work.
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##
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@namespace nuweb {
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function :status {
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local code=$1;shift;
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local message=$@;
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echo "HTTP/1.1 $code $message"
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}
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## nuweb.content_type:: <content-type>
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## Sets HTTP response content type
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## NOTE: If any content was already returned this function does not work.
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function :content_type {
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echo "Content-Type: $@"
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}
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## nuweb.redirect:: [--relative] <path>
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##
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function :redirect {
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local prefix="";
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if [ "$1" == "--relative" ]; then
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shift;
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prefix="$(dirname "$SCRIPT_NAME")/"
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fi
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nux.log debug "Redirecting to:" "$@"
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if [ -z "$@" ]; then
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:status 404 NOT FOUND
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else
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echo Location: "$prefix$@"
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echo
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echo
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fi
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}
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## nuweb.redirect.exec::
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##
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function :redirect.exec {
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if [ "$1" == "--relative" ]; then
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args="--relative";
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shift;
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fi
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fn=$1; shift;
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nuweb.redirect $args "$($fn $@)"
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}
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## nuweb.http.query.var:: <param> [defaultValue]
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## Reads HTTP query string from variable *QUERY_STRING*, parses it and returns
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## value of parameter *param* or *defaultValue*.
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##
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## NOTE: Currently does not perform urldecode
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}
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@namespace nuweb.http.query {
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function :var() {
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local to_read=$1;
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local line_separrated=$(sed "s/&/\n/g" <<< $QUERY_STRING)
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while IFS="=" read -r var value; do
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if [ "$var" = "$to_read" ]; then
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echo "$value"
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return;
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fi
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done <<< "$line_separrated"
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echo $2
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}
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## nuweb.http.query.to_var::
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##
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function :to_var() {
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local line_separrated=$(sed "s/&/\n/g" <<< $QUERY_STRING)
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while IFS="=" read -r var value; do
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declare -x "nuweb_QUERY_$var"="$value"
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done <<< "$line_separrated"
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}
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}
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