page.c: Report logged user name on directory preview

Thanks to Avron for the suggestion. [1]

[1]: https://codeberg.org/xavidcr/slcl/issues/2

1 files changed, 39 insertions, 14 deletions

diff --git a/page.c b/page.c
index b504e81..af24e70 100644
--- a/page.c
+++ b/page.c
@@ -954,52 +954,76 @@ end:
     return ret;
 }
 
-static int prepare_logout_form(struct html_node *const n)
+static int prepare_logout_form(struct html_node *const n,
+    const char *const username)
 {
-    struct html_node *div, *form, *input;
+    int ret = -1;
+    struct dynstr d;
+    struct html_node *div, *label, *form, *input;
+
+    dynstr_init(&d);
 
     if (!(div = html_node_add_child(n, "div")))
     {
         fprintf(stderr, "%s: html_node_add_child div failed\n", __func__);
-        return -1;
+        goto end;
+    }
+    else if (!(label = html_node_add_child(div, "label")))
+    {
+        fprintf(stderr, "%s: html_node_add_child label failed\n", __func__);
+        goto end;
     }
     else if (!(form = html_node_add_child(div, "form")))
     {
         fprintf(stderr, "%s: html_node_add_child form failed\n", __func__);
-        return -1;
+        goto end;
     }
     else if (!(input = html_node_add_child(form, "input")))
     {
         fprintf(stderr, "%s: html_node_add_child input failed\n", __func__);
-        return -1;
+        goto end;
     }
     else if (html_node_add_attr(div, "class", "userform"))
     {
         fprintf(stderr, "%s: html_node_add_attr div failed\n", __func__);
-        return -1;
+        goto end;
+    }
+    else if (dynstr_append(&d, "Logged in as %s", username))
+    {
+        fprintf(stderr, "%s: dynstr_append failed\n", __func__);
+        goto end;
+    }
+    else if (html_node_set_value(label, d.str))
+    {
+        fprintf(stderr, "%s: html_node_add_attr div failed\n", __func__);
+        goto end;
     }
     else if (html_node_add_attr(form, "method", "post"))
     {
         fprintf(stderr, "%s: html_node_add_attr method failed\n", __func__);
-        return -1;
+        goto end;
     }
     else if (html_node_add_attr(form, "action", "/logout"))
     {
         fprintf(stderr, "%s: html_node_add_attr action failed\n", __func__);
-        return -1;
+        goto end;
     }
     else if (html_node_add_attr(input, "type", "submit"))
     {
         fprintf(stderr, "%s: html_node_add_attr type failed\n", __func__);
-        return -1;
+        goto end;
     }
     else if (html_node_add_attr(input, "value", "Logout"))
     {
         fprintf(stderr, "%s: html_node_add_attr value failed\n", __func__);
-        return -1;
+        goto end;
     }
 
-    return 0;
+    ret = 0;
+
+end:
+    dynstr_free(&d);
+    return ret;
 }
 
 static int prepare_footer(struct html_node *const n)
@@ -1133,7 +1157,7 @@ end:
 
 static struct html_node *resource_layout(const char *const dir,
     const struct page_quota *const q, struct html_node **const body,
-    struct html_node **const table)
+    struct html_node **const table, const char *const username)
 {
     const char *const fdir = dir + strlen("/user");
     struct html_node *const html = html_node_alloc("html"),
@@ -1194,7 +1218,7 @@ static struct html_node *resource_layout(const char *const dir,
         fprintf(stderr, "%s: prepare_quota_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_logout_form(*body))
+    else if (prepare_logout_form(*body, username))
     {
         fprintf(stderr, "%s: prepare_logout_form failed\n", __func__);
         goto end;
@@ -1615,7 +1639,8 @@ static int list_dir(const struct page_resource *const pr)
     int ret = -1;
     struct dynstr out;
     struct html_node *table, *body,
-        *const html = resource_layout(pr->dir, pr->q, &body, &table);
+        *const html = resource_layout(pr->dir, pr->q, &body, &table,
+            pr->username);
     struct element_stats st;
 
     dynstr_init(&out);