[wiki] [sites] [quark][patch] precomputed compression support || guysv

From: <git_AT_suckless.org>
Date: Sat, 15 Aug 2020 12:50:18 +0200

commit 3d2a8e52f61e1f7872e426e1535bfd46c4cb7f05
Author: guysv <sviryguy_AT_gmail.com>
Date: Sat Aug 15 13:46:05 2020 +0300

    [quark][patch] precomputed compression support
    
    Add patch to serve compressed version of file if exists.

diff --git a/tools.suckless.org/quark/patches/precompression/index.md b/tools.suckless.org/quark/patches/precompression/index.md
new file mode 100644
index 00000000..bb026077
--- /dev/null
+++ b/tools.suckless.org/quark/patches/precompression/index.md
_AT_@ -0,0 +1,20 @@
+precompression
+===================
+
+Description
+-----------
+
+This patch adds a new capability to serve compressed versions of requested files.
+
+If the client supports compression, quark will try to serve <file>.gz first, if it exists.
+
+This method is cheap to implement, but has several shortcomings:
+* Dirlists are not supported
+* Range requests are not supported
+
+You can generate compressed files for your webroot using
+ find /var/www -type f -exec gzip -k {} \;
+
+Download
+--------
+* [quark-precompression-20200308-3c7049e.diff](quark-precompression-20200308-3c7049e.diff)
diff --git a/tools.suckless.org/quark/patches/precompression/quark-precompression-20200308-3c7049e.diff b/tools.suckless.org/quark/patches/precompression/quark-precompression-20200308-3c7049e.diff
new file mode 100644
index 00000000..427380c0
--- /dev/null
+++ b/tools.suckless.org/quark/patches/precompression/quark-precompression-20200308-3c7049e.diff
_AT_@ -0,0 +1,117 @@
+From 668df28967b8abd2893383e4d20b16cfe99dfdeb Mon Sep 17 00:00:00 2001
+From: guysv <sviryguy_AT_gmail.com>
+Date: Sun, 8 Mar 2020 18:40:07 +0200
+Subject: [PATCH] Add support for precomputed compression
+
+If a client indicates that it supports gzip, then look for a `.gz`
+variation of requested file. If such gzipped file exists, send it
+instead and set the appropriate headers.
+
+Range requests and dirlist requests are not supported.
+---
+ http.c | 24 ++++++++++++++++++++++--
+ http.h | 1 +
+ resp.c | 5 +++--
+ resp.h | 2 +-
+ 4 files changed, 27 insertions(+), 5 deletions(-)
+
+diff --git a/http.c b/http.c
+index efc4136..a654514 100644
+--- a/http.c
++++ b/http.c
+_AT_@ -25,6 +25,7 @@ const char *req_field_str[] = {
+ [REQ_HOST] = "Host",
+ [REQ_RANGE] = "Range",
+ [REQ_MOD] = "If-Modified-Since",
++ [REQ_ENCODE] = "Accept-Encoding",
+ };
+
+ const char *req_method_str[] = {
+_AT_@ -349,7 +350,7 @@ enum status
+ http_send_response(int fd, struct request *r)
+ {
+ struct in6_addr res;
+- struct stat st;
++ struct stat st, gzst;
+ struct tm tm;
+ size_t len, i;
+ off_t lower, upper;
+_AT_@ -604,5 +605,24 @@ http_send_response(int fd, struct request *r)
+ }
+ }
+
+- return resp_file(fd, RELPATH(realtarget), r, &st, mime, lower, upper);
++ /* encoding-compression */
++ if (r->field[REQ_ENCODE][0] && !r->field[REQ_RANGE][0]) {
++ for (p = r->field[REQ_ENCODE]; p; p = strchr(p, ','), p ? p++ : p) {
++ /* skip whitespace */
++ for (; *p == ' ' || *p == ' '; p++)
++ ;
++ if (!strncasecmp(p, "gzip", sizeof("gzip")-1) &&
++ !esnprintf(tmptarget, sizeof(tmptarget), "%s%s", realtarget,
++ ".gz") &&
++ !stat(RELPATH(tmptarget), &gzst) &&
++ S_ISREG(gzst.st_mode)) {
++ lower = 0;
++ upper = gzst.st_size-1;
++ return resp_file(fd, RELPATH(tmptarget), r, &gzst, mime,
++ "Content-Encoding: gzip
", lower, upper);
++ }
++ }
++ }
++
++ return resp_file(fd, RELPATH(realtarget), r, &st, mime, "", lower, upper);
+ }
+diff --git a/http.h b/http.h
+index cd1ba22..26ced90 100644
+--- a/http.h
++++ b/http.h
+_AT_@ -11,6 +11,7 @@ enum req_field {
+ REQ_HOST,
+ REQ_RANGE,
+ REQ_MOD,
++ REQ_ENCODE,
+ NUM_REQ_FIELDS,
+ };
+
+diff --git a/resp.c b/resp.c
+index 3075c28..bf35ac8 100644
+--- a/resp.c
++++ b/resp.c
+_AT_@ -111,7 +111,7 @@ cleanup:
+
+ enum status
+ resp_file(int fd, char *name, struct request *r, struct stat *st, char *mime,
+- off_t lower, off_t upper)
++ char *encoding, off_t lower, off_t upper)
+ {
+ FILE *fp;
+ enum status s;
+_AT_@ -142,10 +142,11 @@ resp_file(int fd, char *name, struct request *r, struct stat *st, char *mime,
+ "Connection: close
"
+ "Last-Modified: %s
"
+ "Content-Type: %s
"
++ "%s"
+ "Content-Length: %zu
",
+ s, status_str[s], timestamp(time(NULL), t1),
+ timestamp(st->st_mtim.tv_sec, t2), mime,
+- upper - lower + 1) < 0) {
++ encoding, upper - lower + 1) < 0) {
+ s = S_REQUEST_TIMEOUT;
+ goto cleanup;
+ }
+diff --git a/resp.h b/resp.h
+index d5928ef..ccfaaad 100644
+--- a/resp.h
++++ b/resp.h
+_AT_@ -9,6 +9,6 @@
+
+ enum status resp_dir(int, char *, struct request *);
+ enum status resp_file(int, char *, struct request *, struct stat *, char *,
+- off_t, off_t);
++ char *, off_t, off_t);
+
+ #endif /* RESP_H */
+--
+2.25.1
+
Received on Sat Aug 15 2020 - 12:50:18 CEST