diff options
| -rwxr-xr-x | burrow | 62 |
1 files changed, 50 insertions, 12 deletions
@@ -1,14 +1,19 @@ #!/bin/sh -### read from $1 and print on stdout a list of DIR selectors -### one per line, terminated by a line with ".\r\n" +### read from $1 and print on stdout a list of MENU selectors IDs +### in the format: +### +### 1|SELECTOR|HOST|PORT|SHA256 +### +### where SHA256 is the SHA256SUM of "1|SELECTOR|HOST|PORT" +### ## function get_dirs(){ + src_id="$1" OLDIFS=$IFS #IFS=$'\t\n' -## IFS="$(echo t | tr t \\t) -##" IFS="|" + src_dir=$(echo "${src_id}" | cut -c -2) while read name sel host port; do ## echo " --- name: \"$name\"" ## echo " --- sel: \"$sel\"" @@ -17,19 +22,52 @@ get_dirs(){ TYPE=$(echo "$name" | cut -c 1) ## echo " --- TYPE \"$TYPE\"" ## echo "$TYPE, $name, $sel, $host, $port" + port=$(echo $port | sed -r -e 's/\r//g') + dir_id=$(echo "${TYPE}|${sel}|${host}|${port}" | sed 's/^1||/1|\/|/g') + dest_id=$(echo "${dir_id}" | sha256sum | cut -d " " -f 1 ) + echo "${src_id}" "${dest_id}" >&2 [ "${TYPE}" = "1" ] && { - port=$(echo $port | sed -r -e 's/\r//g') - dir_id=$(echo "${TYPE}|${sel}|${host}|${port}" | sed 's/^1||/1|\/|/g') - sid=$(echo "${dir_id}" | sha256sum | cut -d " " -f 1 ) - echo "${dir_id}|${sid}" + echo "${dir_id}|${dest_id}" | tee -a ${src_dir}/${src_id} } done - IFS=$OLDIFS + IFS="$OLDIFS" } -FIN=${1:-"/dev/stdin"} -SRC="$2" +### get a MENU selector ID (as generated by get_dirs) and retrieves it +### from the gopherspace +### +## function +retrieve_selector(){ + sel="$1" + SEL=$(echo "$1" | cut -d "|" -f 2) + HOST=$(echo "$1" | cut -d "|" -f 3) + PORT=$(echo "$1" | cut -d "|" -f 4) + printf "${SEL}\r\n" | netcat -w 15 "${HOST}" "${PORT}" + +} + +### +### Check if a given selector has been visited. In that case, just +### output the corresponding file (which contains all the outgoing links +### of the selector) and exits +### +## function +check_selector_present(){ + sel_id="$1" + sel_dir="$(echo ${sel_id} | cut -c -2)" + [ -d "${sel_dir}" -a -f "${sel_dir}/${sel_id}" ] && cat ${sel_dir}/${sel_id} && echo ${sel_id}>>present && exit 1 + [ ! -d "${sel_dir}" ] && mkdir -p "${sel_dir}" +} + + +SRC="$1" + +src_id=$(echo "$SRC" | cut -d "|" -f 5 ) + +check_selector_present "${src_id}" -cat "$FIN" | sed -r -e 's/\t/|/g' | get_dirs +echo "selector ${src_id} not found" >> logfile.txt +retrieve_selector "$SRC" | sed -r -e 's/\t/|/g' | get_dirs "${src_id}" + |