Added a response function for standard redirection.

[ashd.git] / lib / resp.c

diff --git a/lib/resp.c b/lib/resp.c
index 63c8eca..c1b74b9 100644 (file)
--- a/lib/resp.c
+++ b/lib/resp.c
@@ -83,6 +83,47 @@ void simpleerror(int fd, int code, char *msg, char *fmt, ...)
     buffree(buf);
 }
 
+void stdredir(struct hthead *req, int fd, int code, char *dst)
+{
+    FILE *out;
+    char *sp, *cp, *ep, *path, *url, *adst, *proto, *host;
+    
+    sp = strchr(dst, '/');
+    cp = strchr(dst, ':');
+    if(cp && (!sp || (cp < sp))) {
+       adst = sstrdup(dst);
+    } else {
+       proto = getheader(req, "X-Ash-Protocol");
+       host = getheader(req, "Host");
+       if((proto == NULL) || (host == NULL)) {
+           /* Not compliant, but there isn't a whole lot to be done
+            * about it. */
+           adst = sstrdup(dst);
+       } else {
+           if(*dst == '/') {
+               path = sstrdup(dst);
+           } else {
+               if((*(url = req->url)) == '/')
+                   url++;
+               if((ep = strrchr(url, '/')) != NULL)
+                   ep++;
+               else
+                   ep = url;
+               path = sprintf2("%.*s%s", ep - url, url, dst);
+           }
+           adst = sprintf2("%s://%s/%s", proto, host, path);
+           free(path);
+       }
+    }
+    out = fdopen(fd, "w");
+    fprintf(out, "HTTP/1.1 %i Redirection\n", code);
+    fprintf(out, "Content-Length: 0\n");
+    fprintf(out, "Location: %s\n", adst);
+    fprintf(out, "\n");
+    fclose(out);
+    free(adst);
+}
+
 char *fmthttpdate(time_t time)
 {
     /* I avoid using strftime, since it depends on locale settings. */