upload: add form

1 files changed, 122 insertions, 0 deletions

diff --git a/upload.c b/upload.c
index 03e4169..fef628e 100644
--- a/upload.c
+++ b/upload.c
@@ -30,9 +30,13 @@
 
 #include <stdlib.h>
 #include <kcgi.h>
+#include <kcgihtml.h>
 #include <limits.h>
 #include <string.h>
 
+#include "cgi.h"
+#include "http.h"
+#include "template.h"
 #include "upload.h"
 #include "url.h"
 
@@ -64,3 +68,121 @@ build_upload_url(const struct kreq * r, struct file * file)
 	}
 	return action_url_len;
 }
+
+/*
+ * data required in the template functions
+ */
+struct template_data {
+	struct kreq *r;
+	struct khtmlreq *html;
+	struct file *f;
+};
+
+static const char *const header_template_keys[] = {"path", "submit_url"};
+
+static int
+header_template_callback(size_t index, void *arg)
+{
+	struct kreq *r;
+	struct khtmlreq *html;
+	struct template_data *data;
+
+	if (arg == NULL) {
+		kutil_warn(NULL, NULL,
+			   "Invalid data for upload header template");
+		return 0;
+	}
+	data = arg;
+	r = data->r;
+	html = data->html;
+
+	switch (index) {
+	case 0:
+		/* path */
+		K_OK(khtml_puts(html, data->f->path), r);
+		break;
+	case 1:
+		/* submit_url */
+		K_OK(khtml_puts(html, data->f->action_url), r);
+		break;
+	default:
+		kutil_warnx(r, NULL,
+			 "Invalid key index for upload header template: %zd",
+			    index);
+		return 0;
+	}
+
+	return 1;
+}
+
+struct http_ret
+upload(struct kreq * r)
+{
+	struct file *file;
+	struct http_ret ret;
+	struct khtmlreq html;
+	struct ktemplate template;
+	struct page_template *tmpl;
+	struct template_data data;
+
+	/* initialize vars and return structure for success */
+	file = NULL;
+	tmpl = NULL;
+	ret = (struct http_ret) {
+		KHTTP_200, ""
+	};
+
+	/* build file and submit url */
+	file = file_new(r->path);
+	if (file == NULL) {
+		ret = (struct http_ret) {
+			KHTTP_404,
+			"upload: Unable to build data file"
+		};
+		goto end;
+	}
+	if (build_upload_url(r, file) == 0) {
+		ret = (struct http_ret) {
+			KHTTP_500,
+			"upload: Can't build upload url"
+		};
+		goto end;
+	}
+
+	/* read template */
+	tmpl = page_template_new(UPLOAD_URL);
+	if (tmpl == NULL) {
+		ret = (struct http_ret) {
+			KHTTP_500,
+			"upload: Unable to read template"
+		};
+		goto end;
+	}
+
+	http_open(r, KHTTP_200, r->mime);
+
+	K_OK(khttp_puts(r, tmpl->header), r);
+	K_OK(khtml_open(&html, r, 0), r);
+
+	/* print upload form */
+	template.key = header_template_keys;
+	template.keysz = 2;
+	template.cb = header_template_callback;
+	template.arg = &data;
+	data.r = r;
+	data.html = &html;
+	data.f = file;
+	K_OK(khttp_template_buf(r, &template, tmpl->page_header,
+				strlen(tmpl->page_header)), r);
+
+	K_OK(khttp_puts(r, tmpl->page_footer), r);
+	K_OK(khttp_puts(r, tmpl->footer), r);
+
+	K_OK(khtml_close(&html), r);
+
+	/* free allocated memory */
+end:
+	file_free(file);
+	page_template_free(tmpl);
+	return ret;
+}