From c2bf959b3828b762c77c722f4241330d0d437f91 Mon Sep 17 00:00:00 2001
From: Ryan Kavanagh <rak@rak.ac>
Date: Fri, 11 Sep 2020 10:40:35 -0400
Subject: temporary file host & cleanup

---
 LICENSE   | 13 ++++++++++++
 cleanup.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 ptmp      | 37 ++++++++++++++++++++++++++++++++
 3 files changed, 122 insertions(+)
 create mode 100644 LICENSE
 create mode 100644 cleanup.c
 create mode 100755 ptmp

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f205a83
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,13 @@
+Copyright 2020 Ryan Kavanagh <rak@rak.ac>
+
+Permission to use, copy, modify, and/or distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright notice
+and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.
diff --git a/cleanup.c b/cleanup.c
new file mode 100644
index 0000000..da9268e
--- /dev/null
+++ b/cleanup.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2020 Ryan Kavanagh <rak@rak.ac>
+ * Cleanup hosted temporary files
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fts.h>
+
+#include <err.h>
+#include <math.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+const double mind = 30.0;
+const double maxd = 90.0;
+const double max_size = 33554432; // 32MB
+char* paths[1] = {"/var/www/users/tmp"};
+
+int
+main(int argc, char * const argv[])
+{
+	FTS* file_system;
+	FTSENT* node;
+	struct stat attr;
+
+	double cutoff = 0;
+	double file_age = 0;
+	time_t curr_time = time(NULL);
+
+	file_system = fts_open(paths, 0, NULL);
+
+	if (file_system != NULL) {
+		while ((node = fts_read(file_system)) != NULL) {
+			switch (node->fts_info) {
+			case FTS_F:
+				if (stat(node->fts_name, &attr) == -1)
+					err(1, NULL);
+				file_age = difftime(curr_time, attr.st_mtime);
+				cutoff = mind + (mind - maxd) * \
+					pow((double) attr.st_size / (double) max_size - 1, 3.0);
+
+				if (file_age >= cutoff) {
+					// printf("%s age %fs cuttoff %fs size %lld B delete\n", \
+					// node->fts_name, file_age, cutoff, attr.st_size);
+					unlink(node->fts_name);
+				}
+				break;
+			default:
+				break;
+			}
+		}
+	}
+
+
+	return 0;
+}
diff --git a/ptmp b/ptmp
new file mode 100755
index 0000000..f54633f
--- /dev/null
+++ b/ptmp
@@ -0,0 +1,37 @@
+#!/bin/sh
+# Copyright 2020 Ryan Kavanagh <rak@rak.ac>
+# Upload as temporary file
+#
+# Permission to use, copy, modify, and/or distribute this software for
+# any purpose with or without fee is hereby granted, provided that the
+# above copyright notice and this permission notice appear in all
+# copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+# AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+# OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+DEST_DIR=hades.rak.ac:public_tmp
+OPT_SUFFIX=""
+
+while getopts s: f
+do
+    case $f in
+	s)
+	    OPT_SUFFIX=".${OPTARG}";;
+	esac
+done
+shift `expr $OPTIND - 1`
+
+PAD=$(md5sum $1 | cut -f1 -d' ')
+
+DEST_NAME="${PAD}.$1${OPT_SUFFIX}"
+
+scp $1 "${DEST_DIR}/${DEST_NAME}"
+
+echo "https://rak.ac/~tmp/${DEST_NAME}"
-- 
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