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add support for /wo/showapps
return HTTP status 504 if app is unreachable
This commit is contained in:
David Wetzel
parent
e1114e4395
commit
3d5a52e699
3 changed files with 94 additions and 74 deletions
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@ -1,9 +1,14 @@
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2017-12-04 David Wetzel <dave@turbocat.de>
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* GSWAdaptors/Apache2/mod_gsw.c
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add support for /wo/showapps
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return HTTP status 504 if app is unreachable
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* GSWAdaptors/README.txt
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update note for /wo/showapps
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2017-11-19 David Wetzel <dave@turbocat.de>
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* GSWAdaptors/Apache2/mod_gsw.c
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compiles with Apache 2.4 now
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* GSWAdaptors/README.txt
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updated readme
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2017-11-19 David Wetzel <dave@turbocat.de>
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* GSWeb/GSWAjaxRequestHandler.*
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new files
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@ -1219,6 +1219,79 @@ static void print_css(request_rec * r)
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</style>\n", r);
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}
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static void showApps(request_rec * r, gsw_cfg *dcfg)
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{
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ap_set_content_type(r, "text/html");
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/*
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* Now send our actual output. Since we tagged this as being
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* "text/html", we need to embed any HTML.
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*/
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ap_rputs(DOCTYPE_HTML_3_2, r);
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ap_rputs("<html>\n", r);
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ap_rputs("<head>\n", r);
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print_css(r);
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ap_rputs("<title>GNUstepWeb Status</title>\n", r);
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ap_rputs("<meta name=\"robots\" content=\"NOINDEX, NOFOLLOW\">\n", r);
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ap_rputs("</head>\n", r);
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ap_rputs("<body>\n", r);
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ap_rputs("<h1>GNUstepWeb Status</h1><br>\n", r);
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if ((dcfg->showApps)) {
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if ((dcfg->app_table)) {
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const apr_array_header_t *tarr = apr_table_elts(dcfg->app_table);
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const apr_table_entry_t *telts = (const apr_table_entry_t*)tarr->elts;
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int i;
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exipc_data * mem;
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int appcount = tarr->nelts;
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char timestr[APR_CTIME_LEN];
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mem = read_shared_mem(r->pool, appcount);
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if (mem) {
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ap_rputs("<div class=\"fail\"><table width=\"700\">\n",r);
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print_image(r);
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ap_rputs("<tr><th>Name</th><th>Instance</th><th>Host</th><th>Port</th><th>Load</th><th>Unreachable</th><th>Refusing</th><th>Last Request</th><th>Last Response</th></tr>\n",r);
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for (i = 0; i < tarr->nelts; i++) {
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gsw_app_conf *appconf = (gsw_app_conf *) telts[i].val;
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ap_rprintf(r, "<tr><td><a href=\"%s%s.woa/%d/\">%s</a></td>", ADAPTOR_PREFIX,
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appconf->app_name,
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appconf->instance_number,
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appconf->app_name);
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ap_rprintf(r, "<td>%u</td>", appconf->instance_number);
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ap_rprintf(r, "<td>%s</td>", appconf->host_name);
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ap_rprintf(r, "<td>%u</td>", appconf->port);
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ap_rprintf(r, "<td>%u</td>", mem[i].load);
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ap_rprintf(r, "<td>%s</td>", (mem[i].unreachable == 1) ? "YES": "NO");
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ap_rprintf(r, "<td>%s</td>", (mem[i].refusing == 1) ? "YES": "NO");
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apr_ctime(timestr, mem[i].last_request_time);
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ap_rprintf(r, "<td>%s</td>", timestr);
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if (mem[i].last_response_time > 0) {
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apr_ctime(timestr, mem[i].last_response_time);
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ap_rprintf(r, "<td>%s</td></tr>\n", timestr);
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} else {
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ap_rprintf(r, "<td>never</td></tr>\n");
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}
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}
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ap_rputs("</table><br>\n",r);
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}
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}
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} else {
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ap_rputs("<p>Application list hidden. Set <samp>ShowApps on</samp> in your Apache config to list.</p>\n",r);
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}
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ap_rputs("<p class=\"power\">Powered by <a href=\"http://wiki.gnustep.org/index.php/GNUstepWeb\">GNUstep Web</a></p>\n",r);
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ap_rputs("</div>\n</body>\n", r);
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ap_rputs("</html>\n", r);
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}
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/*--------------------------------------------------------------------------*/
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/* */
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@ -1266,6 +1339,11 @@ static int gsw_handler(request_rec *r)
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dcfg = our_dconfig(r);
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if (strncmp(r->uri, "/wo/showapps",12) == 0) {
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showApps(r, dcfg);
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return OK;
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}
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/*
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* We're about to start sending content, so we need to force the HTTP
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* headers to be sent at this point. Otherwise, no headers will be sent
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@ -1322,82 +1400,15 @@ static int gsw_handler(request_rec *r)
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}
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}
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ap_set_content_type(r, "text/html");
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/*
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* If we're only supposed to send header information (HEAD request), we're
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* already there.
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*/
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if (r->header_only) {
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return OK;
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}
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// if (r->header_only) {
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//// return OK;
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// return 504;
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// }
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/*
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* Now send our actual output. Since we tagged this as being
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* "text/html", we need to embed any HTML.
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*/
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ap_rputs(DOCTYPE_HTML_3_2, r);
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ap_rputs("<html>\n", r);
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ap_rputs("<head>\n", r);
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print_css(r);
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ap_rputs("<title>GNUstepWeb Status</title>\n", r);
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ap_rputs("<meta name=\"robots\" content=\"NOINDEX, NOFOLLOW\">\n", r);
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ap_rputs("</head>\n", r);
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ap_rputs("<body>\n", r);
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ap_rputs("<h1>GNUstepWeb Status</h1><br>\n", r);
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if ((dcfg->showApps)) {
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if ((dcfg->app_table)) {
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const apr_array_header_t *tarr = apr_table_elts(dcfg->app_table);
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const apr_table_entry_t *telts = (const apr_table_entry_t*)tarr->elts;
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int i;
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exipc_data * mem;
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int appcount = tarr->nelts;
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char timestr[APR_CTIME_LEN];
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mem = read_shared_mem(r->pool, appcount);
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if (mem) {
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ap_rputs("<div class=\"fail\"><table width=\"700\">\n",r);
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print_image(r);
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ap_rputs("<tr><th>Name</th><th>Instance</th><th>Host</th><th>Port</th><th>Load</th><th>Unreachable</th><th>Refusing</th><th>Last Request</th><th>Last Response</th></tr>\n",r);
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for (i = 0; i < tarr->nelts; i++) {
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gsw_app_conf *appconf = (gsw_app_conf *) telts[i].val;
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ap_rprintf(r, "<tr><td><a href=\"%s%s.woa/%d/\">%s</a></td>", ADAPTOR_PREFIX,
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appconf->app_name,
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appconf->instance_number,
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appconf->app_name);
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ap_rprintf(r, "<td>%u</td>", appconf->instance_number);
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ap_rprintf(r, "<td>%s</td>", appconf->host_name);
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ap_rprintf(r, "<td>%u</td>", appconf->port);
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ap_rprintf(r, "<td>%u</td>", mem[i].load);
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ap_rprintf(r, "<td>%s</td>", (mem[i].unreachable == 1) ? "YES": "NO");
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ap_rprintf(r, "<td>%s</td>", (mem[i].refusing == 1) ? "YES": "NO");
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apr_ctime(timestr, mem[i].last_request_time);
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ap_rprintf(r, "<td>%s</td>", timestr);
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if (mem[i].last_response_time > 0) {
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apr_ctime(timestr, mem[i].last_response_time);
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ap_rprintf(r, "<td>%s</td></tr>\n", timestr);
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} else {
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ap_rprintf(r, "<td>never</td></tr>\n");
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}
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}
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ap_rputs("</table><br>\n",r);
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}
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}
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} else {
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ap_rputs("<p>Application list hidden. Set <samp>ShowApps on</samp> in your Apache config to list.</p>\n",r);
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}
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ap_rputs("<p class=\"power\">Powered by <a href=\"http://wiki.gnustep.org/index.php/GNUstepWeb\">GNUstep Web</a></p>\n",r);
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ap_rputs("</div>\n</body>\n", r);
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ap_rputs("</html>\n", r);
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/*
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* We're all done, so cancel the timeout we set. Since this is probably
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* the end of the request we *could* assume this would be done during
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@ -1408,7 +1419,7 @@ static int gsw_handler(request_rec *r)
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* We did what we wanted to do, so tell the rest of the server we
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* succeeded.
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*/
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return OK;
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return 504;
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}
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/*--------------------------------------------------------------------------*/
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@ -17,10 +17,14 @@ ShowApps on
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App Name=TCWebMail Instance=1 Host=127.0.0.1:9804
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Then you start your App like this (plus your other arguments):
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./TCWebMail.gswa/TCWebMail -WOHost 127.0.0.1 -WOPort 9804
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If you enabled ShowApps, you can access the list of applications like this:
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http://www.example.org/wo/showapps
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If an application is unreachable the adaptor will return an HTTP status 504
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dw.
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