Wait for responses

1 files changed, 24 insertions, 15 deletions

@@ -4,8 +4,6 @@
 # License: MIT
 # Version: -0.7
 
-set -euo pipefail
-
 ### constants ###
 PRGN="${0##*/}"                # program name
 DLDR="${BOLLUX_DOWNDIR:-.}"    # where to download
@@ -25,7 +23,7 @@ RDRS=0                         # redirects
 
 ### utility functions ###
 # a better echo
-put() { printf '%s\n' "$*"; }
+put() { printf '%s\n' "$*" >&3; }
 
 # conditionally log events to stderr
 # lower = more important
@@ -116,20 +114,18 @@ request() { # request [-s SERVER] URL
         log 5 "serv: $serv"
         log 5 "addr: $addr"
 
-        t="$(mktemp)"
-
         sslcmd=(openssl s_client -crlf -ign_eof -quiet -connect "$serv")
         log "${sslcmd[@]}"
-        "${sslcmd[@]}" <<<"$addr" 2>"$t"
-
-        ((LOGL > 4)) && cat "$t"
-        rm "$t"
+        "${sslcmd[@]}" <<<"$addr" 2>/dev/null
 }
 
 # handle the response
 # cf. gemini://gemini.circumlunar.space/docs/spec-spec.txt
-handle() { # handle < RESPONSE ## needs $URL in state
-        head="$(sed 1q)"
+handle() { # handle URL < RESPONSE
+        URL="$1"
+        while read -r head; do
+                break # wait to read the first line
+        done
         code="$(awk '{print $1}' <<<"$head")"
         meta="$(awk '{for(i=2;i<=NF;i++)printf "%s ",$i;printf "\n"}' <<<"$head")"
 
@@ -241,20 +237,33 @@ display() { # display MIMETYPE < DOCUMENT
 
 ### main entry point ###
 bollux() {
+        bollux_setup
+
         if (($# == 1)); then
                 URL="$1"
         else
-                read -rp "GO> " URL
+                read -r -u 3 -p "GO> " URL
         fi
 
         log 5 "URL : $URL"
-        log 5 "addr: $(_address "$URL")"
-        log 5 "serv: $(_server "$URL")"
 
-        request "$URL" | handle
+        request "$URL" >.resource &
+        handle "$URL" <.resource
+
+        bollux_cleanup
+}
+
+bollux_setup() {
+        mkfifo .resource
+        trap bollux_cleanup INT QUIT TERM EXIT
+}
+bollux_cleanup() {
+        echo
+        rm -f .resource
 }
 
 if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+        set -euo pipefail # strict mode
         # requirements here -- so they're only checked once
         require awk
         require dd