author: kx <kx@radix.pro> 2023-03-24 03:55:33 +0300
committer: kx <kx@radix.pro> 2023-03-24 03:55:33 +0300
commit: bfc1508d26c89c9a36d2d9a827fe2c4ed128884d
parent: c836ae3775cf72f17e0b7e3792d156fdb389bee3
Commit Summary:
Diffstat:
1 file changed, 147 insertions, 0 deletions
diff --git a/csvncgi/fatal.c b/csvncgi/fatal.c
new file mode 100644
index 0000000..27da083
--- /dev/null
+++ b/csvncgi/fatal.c
@@ -0,0 +1,179 @@
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/sysinfo.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <sys/stat.h> /* chmod(2) */
+#include <sys/file.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <string.h> /* strdup(3) */
+#include <libgen.h> /* basename(3) */
+#include <ctype.h> /* tolower(3) */
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <grp.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+#include <defs.h>
+#include <fatal.h>
+#include <http.h>
+
+
+void fatal( const char *fmt, ... )
+{
+ va_list arg_ptr;
+ char buf[HTTP_ERRMSG_SIZE];
+ char msg[HTTP_ERRMSG_SIZE];
+ char *format = "%s: %s\n";
+
+ va_start( arg_ptr, fmt );
+
+ vsnprintf( msg, HTTP_ERRMSG_SIZE, (const void *)fmt, arg_ptr );
+
+ va_end( arg_ptr ); /* Reset variable arguments. */
+
+ snprintf( buf, HTTP_ERRMSG_SIZE, format, PROGRAM_CGI, msg );
+
+ (void)write( STDERR_FILENO, buf, strlen( buf ) );
+
+ exit( 1 );
+}
+
+void fatal_json( const char *fmt, ... )
+{
+ va_list arg_ptr;
+
+ char resp[HTTP_ERRMSG_SIZE];
+ char json[HTTP_ERRMSG_SIZE];
+ char msg[HTTP_ERRMSG_SIZE];
+
+ char *http_format = "Status: 500 Internal Server Error\n"
+ "Date: %s\n"
+ "Cache-Control: no-cache, no-store\n"
+ "Content-Type: application/json\n"
+ "Content-Length: %d\n\n"
+ "%s";
+
+ va_start( arg_ptr, fmt );
+
+ vsnprintf( msg, HTTP_ERRMSG_SIZE, (const void *)fmt, arg_ptr );
+
+ va_end( arg_ptr ); /* Reset variable arguments. */
+
+ snprintf( json, HTTP_ERRMSG_SIZE, "{\"error\":\"500\",\"description\":\"Internal Server Error\",\"message\":\"%s: %s\"}", PROGRAM_CGI, msg );
+
+ snprintf( resp, HTTP_ERRMSG_SIZE, http_format,
+ http_date( time(NULL) ), strlen( json ), json );
+
+ (void)write( STDOUT_FILENO, resp, strlen( resp ) );
+
+ exit( 1 );
+}
+
+void fatal_html( const char *fmt, ... )
+{
+ va_list arg_ptr;
+
+ char resp[HTTP_ERRMSG_SIZE];
+ char html[HTTP_ERRMSG_SIZE];
+ char msg[HTTP_ERRMSG_SIZE];
+
+ char *http_format = "Status: 500 Internal Server Error\n"
+ "Date: %s\n"
+ "Cache-Control: no-cache, no-store\n"
+ "Content-Type: text/html; charset=utf-8\n"
+ "Content-Length: %d\n\n"
+ "%s";
+
+ char *html_format =
+ "<!DOCTYPE html>\n"
+ "<html lang=\"en-US\">\n"
+ " <head>\n"
+ " <meta charset=\"utf-8\">\n"
+ " <!--[if IE]><meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><![endif]-->\n"
+ " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n"
+ " <title>HTTP/%s 500 Internal Server Error</title>\n"
+ " <style>\n"
+ " body {\n"
+ " min-width: 460px;\n"
+ " }\n"
+ " .csvn-internal-server-error {\n"
+ " margin: 48px auto;\n"
+ " padding: 24px 48px 28px 48px;\n"
+ " width: 70%%;\n"
+ " color: #fff;\n"
+ " background: #db2828;\n"
+ " box-shadow: 3px 3px 10px rgba(0,0,0,0.5);\n"
+ " border-radius: 4px;\n"
+ " }\n"
+ " .csvn-internal-server-error h1 {\n"
+ " margin-bottom: 2px;\n"
+ " font-family: sans-serif;\n"
+ " font-size: 28px;\n"
+ " }\n"
+ " .csvn-internal-server-error p.http-date {\n"
+ " margin-top: 2px;\n"
+ " padding-left: 0px 0px 12px 0px;\n"
+ " color: #fc0;\n"
+ " font-family: monospace;\n"
+ " font-size: 18px;\n"
+ " }\n"
+ " .csvn-internal-server-error p {\n"
+ " padding-left: 1px;\n"
+ " font-family: monospace;\n"
+ " font-size: 14px;\n"
+ " }\n"
+ " @media screen and (max-width: 680px) {\n"
+ " .csvn-internal-server-error {\n"
+ " padding: 24px 28px 24px 28px;\n"
+ " width: 80%%;\n"
+ " }\n"
+ " .csvn-internal-server-error h1 {\n"
+ " font-size: 22px;\n"
+ " }\n"
+ " .csvn-internal-server-error p.http-date {\n"
+ " font-size: 16px;\n"
+ " }\n"
+ " .csvn-internal-server-error p {\n"
+ " font-size: 12px;\n"
+ " }\n"
+ " }\n"
+ " </style>\n"
+ " </head>\n"
+ " <body>\n"
+ " <div class=\"csvn-internal-server-error\">\n"
+ " <h1>HTTP/%s 500 Internal Server Error</h1>\n"
+ " <p class=\"http-date\">Date: %s</p>\n"
+ " <p>%s: %s</p>\n"
+ " </div>\n"
+ " </body>\n"
+ "</html>\n";
+
+ va_start( arg_ptr, fmt );
+
+ vsnprintf( msg, HTTP_ERRMSG_SIZE, (const void *)fmt, arg_ptr );
+
+ va_end( arg_ptr ); /* Reset variable arguments. */
+
+ snprintf( html, HTTP_ERRMSG_SIZE, html_format,
+ HTTP_VERSION, HTTP_VERSION,
+ http_date( time(NULL) ), PROGRAM_CGI, msg );
+
+ snprintf( resp, HTTP_ERRMSG_SIZE, http_format,
+ http_date( time(NULL) ), strlen( html ), html );
+
+ (void)write( STDOUT_FILENO, resp, strlen( resp ) );
+
+ exit( 1 );
+}