fix upload into share with vproxy; closes #168

Author: 9001

contrib/nginx/copyparty.conf

@@ -2,19 +2,38 @@
 # not accept more consecutive clients than what copyparty is able to;
 # nginx default is 512  (worker_processes 1, worker_connections 512)
 #
+# ======================================================================
+#
+# to reverse-proxy a specific path/subpath/location below a domain
+# (rather than a complete subdomain), for example "/qw/er", you must
+# run copyparty with --rp-loc /qw/as and also change the following:
+# 	location / {
+# 		proxy_pass http://cpp_tcp;
+# to this:
+# 	location /qw/er/ {
+# 		proxy_pass http://cpp_tcp/qw/er/;
+#
+# ======================================================================
+#
 # rarely, in some extreme usecases, it can be good to add -j0
 # (40'000 requests per second, or 20gbps upload/download in parallel)
 # but this is usually counterproductive and slightly buggy
 #
+# ======================================================================
+#
 # on fedora/rhel, remember to setsebool -P httpd_can_network_connect 1
 #
-# if you are behind cloudflare (or another protection service),
+# ======================================================================
+#
+# if you are behind cloudflare (or another CDN/WAF/protection service),
 # remember to reject all connections which are not coming from your
 # protection service -- for cloudflare in particular, you can
 # generate the list of permitted IP ranges like so:
 #   (curl -s https://www.cloudflare.com/ips-v{4,6} | sed 's/^/allow /; s/$/;/'; echo; echo "deny all;") > /etc/nginx/cloudflare-only.conf
 #
 # and then enable it below by uncomenting the cloudflare-only.conf line
+#
+# ======================================================================
 
 
 upstream cpp_tcp {

copyparty/httpcli.py

@@ -2587,10 +2587,6 @@ def handle_post_json(self) -> bool:
             x = self.conn.hsrv.broker.ask("up2k.handle_json", body, self.u2fh.aps)
             ret = x.get()
 
-        if self.is_vproxied:
-            if "purl" in ret:
-                ret["purl"] = self.args.SR + ret["purl"]
-
         if self.args.shr and self.vpath.startswith(self.args.shr1):
             # strip common suffix (uploader's folder structure)
             vp_req, vp_vfs = vroots(self.vpath, vjoin(dbv.vpath, vrem))
@@ -2600,6 +2596,10 @@ def handle_post_json(self) -> bool:
                 raise Pebkac(500, t % zt)
             ret["purl"] = vp_req + ret["purl"][len(vp_vfs) :]
 
+        if self.is_vproxied:
+            if "purl" in ret:
+                ret["purl"] = self.args.SR + ret["purl"]
+
         ret = json.dumps(ret)
         self.log(ret)
         self.reply(ret.encode("utf-8"), mime="application/json")