afm-unit: Fix http port multi allocation

When serveral targets were set in the widget file, the
framework allocated the same HTTP port to each. This
lead to impossibility to run all targets or to a
systemd conflict.

This should fix the issue by allocating an HTTP port for
each target installed by the widget. To achieves that goal,
the afm-unit.conf tag for the port is moved from
'#metadata.http-port' to '#metatarget.http-port'.

Bug-AGL: SPEC-2068

Change-Id: I5376d6f052e0ffc5c77cc80041528637777aed1e
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

8 files changed, 37 insertions, 21 deletions

diff --git a/conf/unit/afm-unit-debug.conf.in b/conf/unit/afm-unit-debug.conf.in
index 582e723..49eb826 100644
--- a/conf/unit/afm-unit-debug.conf.in
+++ b/conf/unit/afm-unit-debug.conf.in
@@ -167,7 +167,7 @@ StandardError=journal
 ;----   text/html  application/vnd.agl.native  application/vnd.agl.service    ----
 ;---------------------------------------------------------------------------------
 {{#content.type=text/html|application/vnd.agl.native|application/vnd.agl.service}}
-X-AFM-http-port={{:#metadata.http-port}}
+X-AFM-http-port={{:#metatarget.http-port}}
 Type=notify
 ExecStart=/usr/bin/afb-daemon \
 	--name afbd-{{idaver}}{{^#target=main}}@{{:#target}}{{/#target=main}} \
@@ -176,7 +176,7 @@ ExecStart=/usr/bin/afb-daemon \
 	--verbose \
 	--verbose \
 	--monitoring \
-	--port={{:#metadata.http-port}} \
+	--port={{:#metatarget.http-port}} \
 	--token=HELLO \
 	--roothttp={{#content.type=application/vnd.agl.service}}.{{/content.type=application/vnd.agl.service}}{{^content.type=application/vnd.agl.service}}{{#required-permission.urn:AGL:permission::public:no-htdocs}}.{{/required-permission.urn:AGL:permission::public:no-htdocs}}{{^required-permission.urn:AGL:permission::public:no-htdocs}}htdocs{{/required-permission.urn:AGL:permission::public:no-htdocs}}{{/content.type=application/vnd.agl.service}} \
 	{{#required-permission.urn:AGL:permission::public:applications:read}}--alias=/icons:{{:#metadata.icons-dir}}{{/required-permission.urn:AGL:permission::public:applications:read}} \
diff --git a/conf/unit/afm-unit.conf.in b/conf/unit/afm-unit.conf.in
index 7c7d36a..50fd957 100644
--- a/conf/unit/afm-unit.conf.in
+++ b/conf/unit/afm-unit.conf.in
@@ -166,7 +166,7 @@ StandardError=journal
 ;---------------------------------------------------------------------------------
 {{#content.type=text/html|application/vnd.agl.native|application/vnd.agl.service}}
 {{^content.type=application/vnd.agl.service}}
-X-AFM--http-port={{:#metadata.http-port}}
+X-AFM--http-port={{:#metatarget.http-port}}
 {{/content.type=application/vnd.agl.service}}
 Type=notify
 ExecStart=/usr/bin/afb-daemon \
@@ -176,7 +176,7 @@ ExecStart=/usr/bin/afb-daemon \
 	{{#content.type=application/vnd.agl.service}} \
 		--no-httpd \
 	{{/content.type=application/vnd.agl.service}}{{^content.type=application/vnd.agl.service}} \
-		--port={{:#metadata.http-port}} \
+		--port={{:#metatarget.http-port}} \
 		--random-token \
 		--roothttp={{#required-permission.urn:AGL:permission::public:no-htdocs}}.{{/required-permission.urn:AGL:permission::public:no-htdocs}}{{^required-permission.urn:AGL:permission::public:no-htdocs}}htdocs{{/required-permission.urn:AGL:permission::public:no-htdocs}} \
 	{{/content.type=application/vnd.agl.service}} \
diff --git a/conf/unit/generate-unit-conf/binder.inc b/conf/unit/generate-unit-conf/binder.inc
index 1a5e71f..30c25d5 100644
--- a/conf/unit/generate-unit-conf/binder.inc
+++ b/conf/unit/generate-unit-conf/binder.inc
@@ -1,10 +1,10 @@
 dnl vim: set filetype=sysctl.conf.m4 syntax=sysctl.conf.m4:
 
 IF_AGL_DEVEL
-X-AFM-http-port={{:#metadata.http-port}}
+X-AFM-http-port={{:#metatarget.http-port}}
 ELSE
 IF_NOT_CONTENT(application/vnd.agl.service)
-X-AFM--http-port={{:#metadata.http-port}}
+X-AFM--http-port={{:#metatarget.http-port}}
 ENDIF
 ENDIF
 
@@ -17,14 +17,14 @@ IF_AGL_DEVEL \
 	--verbose \
 	--verbose \
 	--monitoring \
-	--port={{:#metadata.http-port}} \
+	--port={{:#metatarget.http-port}} \
 	--token=HELLO \
 	--roothttp=ON_CONTENT(application/vnd.agl.service, ., ON_PERM(:public:no-htdocs, ., htdocs)) \
 ELSE \
 	IF_CONTENT(application/vnd.agl.service) \
 		--no-httpd \
 	ELSE \
-		--port={{:#metadata.http-port}} \
+		--port={{:#metatarget.http-port}} \
 		--random-token \
 		--roothttp=ON_PERM(:public:no-htdocs, ., htdocs) \
 	ENDIF \
diff --git a/src/tests/test-unit/test-unit.c b/src/tests/test-unit/test-unit.c
index 2b166e9..347135a 100644
--- a/src/tests/test-unit/test-unit.c
+++ b/src/tests/test-unit/test-unit.c
@@ -65,6 +65,12 @@ puts(json_object_to_json_string_ext(desc->desc, JSON_C_TO_STRING_PRETTY));
 	return 0;
 }
 
+static int port()
+{
+	static int r = 10000;
+	return r++;
+}
+
 int main(int ac, char **av)
 {
 	struct unitconf conf;
@@ -73,7 +79,7 @@ int main(int ac, char **av)
 
 	conf.installdir = "INSTALL-DIR";
 	conf.icondir = "ICONS-DIR";
-	conf.port = 666;
+	conf.port = port;
 	rc = unit_generator_open_template(*++av);
 	if (rc < 0)
 		error("can't read template %s: %m",*av);
diff --git a/src/wgtpkg-install.c b/src/wgtpkg-install.c
index c5c41ea..8d59b37 100644
--- a/src/wgtpkg-install.c
+++ b/src/wgtpkg-install.c
@@ -541,7 +541,7 @@ struct wgt_info *install_widget(const char *wgtfile, const char *root, int force
 	struct wgt_info *ifo;
 	const struct wgt_desc *desc;
 	char installdir[PATH_MAX];
-	int port, err;
+	int err;
 	struct unitconf uconf;
 
 	NOTICE("-- INSTALLING widget %s to %s --", wgtfile, root);
@@ -596,13 +596,9 @@ struct wgt_info *install_widget(const char *wgtfile, const char *root, int force
 	if (install_file_properties(desc))
 		goto error4;
 
-	port = get_port();
-	if (port < 0)
-		goto error4;
-
 	uconf.installdir = installdir;
 	uconf.icondir = FWK_ICON_DIR;
-	uconf.port = port;
+	uconf.port = get_port;
 	if (unit_install(ifo, &uconf))
 		goto error4;
 
diff --git a/src/wgtpkg-mustach.c b/src/wgtpkg-mustach.c
index 4251427..5e4348a 100644
--- a/src/wgtpkg-mustach.c
+++ b/src/wgtpkg-mustach.c
@@ -31,7 +31,7 @@
 #define MAX_DEPTH 256
 
 /*
- * exploration state when instanciating mustache
+ * exploration state when instantiating mustache
  */
 struct expl {
 	struct json_object *root;
diff --git a/src/wgtpkg-unit.c b/src/wgtpkg-unit.c
index 89d1473..cca718f 100644
--- a/src/wgtpkg-unit.c
+++ b/src/wgtpkg-unit.c
@@ -28,7 +28,7 @@
 #include <limits.h>
 
 #include <json-c/json.h>
- 
+
 #include "verbose.h"
 #include "utils-file.h"
 
@@ -38,6 +38,7 @@
 #include "utils-systemd.h"
 
 #include "wgtpkg-unit.h"
+#include "wgt-strings.h"
 
 #if 0
 #include <ctype.h>
@@ -54,7 +55,7 @@ static char *template;
  * When returning 1 and 'after' isn't NULL, the pointer to the
  * first character after the pettern in 'text' is stored in 'after'.
  * The characters '\n' and ' ' have a special meaning in the search:
- *  * '\n': matches any space or tabs (including none) followed 
+ *  * '\n': matches any space or tabs (including none) followed
  *          either by '\n' or '\0' (end of the string)
  *  * ' ': matches any space or tabs but at least one.
  */
@@ -373,13 +374,26 @@ int unit_generator_open_template(const char *filename)
 
 static int add_metadata(struct json_object *jdesc, const struct unitconf *conf)
 {
+	struct json_object *targets, *targ;
 	char portstr[30];
+	int port, i, n;
+
+	if (json_object_object_get_ex(jdesc, string_targets, &targets)) {
+		n = json_object_array_length(targets);
+		for (i = 0 ; i < n ; i++) {
+			targ = json_object_array_get_idx(targets, i);
+			port = conf->port();
+			if (port < 0)
+				return port;
+			sprintf(portstr, "%d", port);
+			if (!j_add_string_m(targ, "#metatarget.http-port", portstr))
+				return -1;
+		}
+	}
 
-	sprintf(portstr, "%d", conf->port);
 	return 	j_add_many_strings_m(jdesc,
 		"#metadata.install-dir", conf->installdir,
 		"#metadata.icons-dir", conf->icondir,
-		"#metadata.http-port", portstr,
 		NULL) ? 0 : -1;
 }
 
diff --git a/src/wgtpkg-unit.h b/src/wgtpkg-unit.h
index 7330365..fc91204 100644
--- a/src/wgtpkg-unit.h
+++ b/src/wgtpkg-unit.h
@@ -47,7 +47,7 @@ struct unitdesc {
 struct unitconf {
 	const char *installdir;
 	const char *icondir;
-	int port;
+	int (*port)();
 };
 
 struct generatedesc {