Added http.c from 1.4.

Added support for estream and gnutls.

common/http.h

@@ -0,0 +1,121 @@
+/* http.h  -  HTTP protocol handler
+ * Copyright (C) 1999, 2000, 2001, 2003,
+ *               2006 Free Software Foundation, Inc.
+ *     
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+#ifndef GNUPG_COMMON_HTTP_H
+#define GNUPG_COMMON_HTTP_H 
+
+#include <gpg-error.h>
+#ifdef HTTP_USE_ESTREAM
+#include "estream.h"
+#endif
+
+struct uri_tuple_s {
+  struct uri_tuple_s *next;
+  const char *name;	/* A pointer into name. */
+  char  *value;         /* A pointer to value (a Nul is always appended). */
+  size_t valuelen;	/* The real length of the value; we need it
+			   because the value may contain embedded Nuls. */
+  int no_value;         /* True if no value has been given in the URL. */
+};
+typedef struct uri_tuple_s *uri_tuple_t;
+
+struct parsed_uri_s 
+{
+  /* All these pointers point into BUFFER; most stuff is not escaped. */
+  char *scheme;	        /* Pointer to the scheme string (lowercase). */
+  int use_tls;          /* Whether TLS should be used. */
+  char *auth;           /* username/password for basic auth */
+  char *host; 	        /* Host (converted to lowercase). */
+  unsigned short port;  /* Port (always set if the host is set). */
+  char *path; 	        /* Path. */
+  uri_tuple_t params;	/* ";xxxxx" */
+  uri_tuple_t query;	/* "?xxx=yyy" */
+  char buffer[1];	/* Buffer which holds a (modified) copy of the URI. */
+};
+typedef struct parsed_uri_s *parsed_uri_t;
+
+typedef enum 
+  {
+    HTTP_REQ_GET  = 1,
+    HTTP_REQ_HEAD = 2,
+    HTTP_REQ_POST = 3
+  } 
+http_req_t;
+
+/* We put the flag values into an enum, so that gdb can display them. */
+enum
+  { 
+    HTTP_FLAG_TRY_PROXY = 1,
+    HTTP_FLAG_NO_SHUTDOWN = 2,
+    HTTP_FLAG_TRY_SRV = 4
+  };
+
+struct http_context_s 
+{
+  int initialized;
+  unsigned int status_code;
+  int sock;
+  int in_data;
+#ifdef HTTP_USE_ESTREAM
+  estream_t fp_read;
+  estream_t fp_write;
+  void *write_cookie;
+#else /*!HTTP_USE_ESTREAM*/
+  FILE *fp_read;
+  FILE *fp_write;
+#endif /*!HTTP_USE_ESTREAM*/
+  void *tls_context;
+  int is_http_0_9;
+  parsed_uri_t uri;
+  http_req_t req_type;
+  char *buffer;          /* Line buffer. */
+  size_t buffer_size;
+  unsigned int flags;
+};
+typedef struct http_context_s *http_t;
+
+void http_register_tls_callback (gpg_error_t (*cb) (http_t, void *, int));
+
+gpg_error_t http_parse_uri (parsed_uri_t *ret_uri, const char *uri);
+
+void http_release_parsed_uri (parsed_uri_t uri);
+
+gpg_error_t http_open (http_t hd, http_req_t reqtype,
+                       const char *url,
+                       const char *auth,
+                       unsigned int flags,
+                       const char *proxy,
+                       void *tls_context);
+
+void http_start_data (http_t hd);
+
+gpg_error_t http_wait_response (http_t hd, unsigned int *ret_status);
+
+void http_close (http_t hd, int keep_read_stream);
+
+gpg_error_t http_open_document (http_t hd,
+                                const char *document,
+                                const char *auth,
+                                unsigned int flags,
+                                const char *proxy,
+                                void *tls_context);
+
+#endif /*GNUPG_COMMON_HTTP_H*/