1 files changed, 149 insertions, 0 deletions
diff --git a/src/c/cgi.c b/src/c/cgi.c
new file mode 100644
index 0000000..d060532
--- /dev/null
+++ b/src/c/cgi.c
@@ -0,0 +1,149 @@
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#include "urweb.h"
+#include "request.h"
+
+extern uw_app uw_application;
+
+static char *uppercased;
+static size_t uppercased_len;
+
+static char *get_header(void *data, const char *h) {
+  size_t len = strlen(h);
+  char *s, *r;
+  const char *saved_h = h;
+
+  if (len > uppercased_len) {
+    uppercased_len = len;
+    uppercased = realloc(uppercased, len + 6);
+  }
+
+  strcpy(uppercased, "HTTP_");
+  for (s = uppercased+5; *h; ++h)
+    *s++ = *h == '-' ? '_' : toupper((int)*h);
+  *s = 0;
+
+  if ((r = getenv(uppercased)))
+    return r;
+  else if (!strcasecmp(saved_h, "Content-length")
+           || !strcasecmp(saved_h, "Content-type"))
+    return getenv(uppercased + 5);
+  else
+    return NULL;
+}
+
+static char *get_env(void *data, const char *name) {
+  return getenv(name);
+}
+
+static void on_success(uw_context ctx) { }
+
+static void on_failure(uw_context ctx) {
+  uw_write_header(ctx, "Status: 500 Internal Server Error\r\n");
+}
+
+static void log_error(void *data, const char *fmt, ...) {
+  va_list ap;
+  va_start(ap, fmt);
+
+  vfprintf(stderr, fmt, ap);
+}
+
+static void log_debug(void *data, const char *fmt, ...) {
+}
+
+static uw_loggers ls = {NULL, log_error, log_debug};
+
+int main(int argc, char *argv[]) {
+  uw_context ctx = uw_request_new_context(0, &uw_application, &ls);
+  uw_request_context rc = uw_new_request_context();
+  request_result rr;
+  char *method = getenv("REQUEST_METHOD"),
+    *path = getenv("SCRIPT_NAME"), *path_info = getenv("PATH_INFO"),
+    *query_string = getenv("QUERY_STRING");
+  char *body = malloc(1);
+  ssize_t body_len = 1, body_pos = 0, res;
+
+  uppercased = malloc(6);
+
+  if (!method) {
+    log_error(NULL, "REQUEST_METHOD not set\n");
+    exit(1);
+  }
+
+  if (!path) {
+    log_error(NULL, "SCRIPT_NAME not set\n");
+    exit(1);
+  }
+
+  if (path_info) {
+    char *new_path = malloc(strlen(path) + strlen(path_info) + 1);
+    sprintf(new_path, "%s%s", path, path_info);
+    path = new_path;
+  }
+
+  if (!query_string)
+    query_string = "";
+
+  while ((res = read(0, body + body_pos, body_len - body_pos)) > 0) {
+    body_pos += res;
+
+    if (body_pos == body_len) {
+      body_len *= 2;
+      body = realloc(body, body_len);
+    }
+  }
+
+  if (res < 0) {
+    log_error(NULL, "Error reading stdin\n");
+    exit(1);
+  }
+
+  uw_set_on_success("");
+  uw_set_headers(ctx, get_header, NULL);
+  uw_set_env(ctx, get_env, NULL);
+  uw_request_init(&uw_application, &ls);
+
+  body[body_pos] = 0;
+  rr = uw_request(rc, ctx, method, path, query_string, body, body_pos,
+                  on_success, on_failure,
+                  NULL, log_error, log_debug,
+                  -1, NULL, NULL);
+  uw_print(ctx, 1);
+
+  if (rr == SERVED)
+    return 0;
+  else
+    return 1;
+}
+
+void *uw_init_client_data() {
+  return NULL;
+}
+
+void uw_free_client_data(void *data) {
+}
+
+void uw_copy_client_data(void *dst, void *src) {
+}
+
+void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
+  uw_ensure_transaction(ctx);
+  uw_get_app(ctx)->expunger(ctx, cli);
+
+  if (uw_commit(ctx))
+    uw_error(ctx, UNLIMITED_RETRY, "Rerunning expunge transaction");
+}
+
+void uw_post_expunge(uw_context ctx, void *data) {
+}
+
+int uw_supports_direct_status = 0;