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-rw-r--r--camel/camel-url.c553
1 files changed, 0 insertions, 553 deletions
diff --git a/camel/camel-url.c b/camel/camel-url.c
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--- a/camel/camel-url.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-url.c : utility functions to parse URLs */
-
-/*
- * Authors:
- * Dan Winship <danw@ximian.com>
- * Tiago Antào <tiagoantao@bigfoot.com>
- * Jeffrey Stedfast <fejj@ximian.com>
- *
- * Copyright 1999-2001 Ximian, Inc. (http://www.ximian.com)
- *
- * This program 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.
- *
- * This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "camel-url.h"
-#include "camel-exception.h"
-#include "camel-mime-utils.h"
-#include "camel-object.h"
-
-static void copy_param (GQuark key_id, gpointer data, gpointer user_data);
-static void output_param (GQuark key_id, gpointer data, gpointer user_data);
-
-/**
- * camel_url_new_with_base:
- * @base: a base URL
- * @url_string: the URL
- *
- * Parses @url_string relative to @base.
- *
- * Return value: a parsed CamelURL.
- **/
-CamelURL *
-camel_url_new_with_base (CamelURL *base, const char *url_string)
-{
- CamelURL *url;
- const char *end, *hash, *colon, *semi, *at, *slash, *question;
- const char *p;
-
- url = g_new0 (CamelURL, 1);
-
- /* See RFC1808 for details. IF YOU CHANGE ANYTHING IN THIS
- * FUNCTION, RUN tests/misc/url AFTERWARDS.
- */
-
- /* Find fragment. */
- end = hash = strchr (url_string, '#');
- if (hash && hash[1]) {
- url->fragment = g_strdup (hash + 1);
- camel_url_decode (url->fragment);
- } else
- end = url_string + strlen (url_string);
-
- /* Find protocol: initial [a-z+.-]* substring until ":" */
- p = url_string;
- while (p < end && (isalnum ((unsigned char)*p) ||
- *p == '.' || *p == '+' || *p == '-'))
- p++;
-
- if (p > url_string && *p == ':') {
- url->protocol = g_strndup (url_string, p - url_string);
- g_strdown (url->protocol);
- url_string = p + 1;
- }
-
- if (!*url_string && !base)
- return url;
-
- /* Check for authority */
- if (strncmp (url_string, "//", 2) == 0) {
- url_string += 2;
-
- slash = url_string + strcspn (url_string, "/#");
- at = strchr (url_string, '@');
- if (at && at < slash) {
- colon = strchr (url_string, ':');
- if (colon && colon < at) {
- url->passwd = g_strndup (colon + 1,
- at - colon - 1);
- camel_url_decode (url->passwd);
- } else {
- url->passwd = NULL;
- colon = at;
- }
-
- semi = strchr(url_string, ';');
- if (semi && semi < colon &&
- !strncasecmp (semi, ";auth=", 6)) {
- url->authmech = g_strndup (semi + 6,
- colon - semi - 6);
- camel_url_decode (url->authmech);
- } else {
- url->authmech = NULL;
- semi = colon;
- }
-
- url->user = g_strndup (url_string, semi - url_string);
- camel_url_decode (url->user);
- url_string = at + 1;
- } else
- url->user = url->passwd = url->authmech = NULL;
-
- /* Find host and port. */
- colon = strchr (url_string, ':');
- if (colon && colon < slash) {
- url->host = g_strndup (url_string, colon - url_string);
- url->port = strtoul (colon + 1, NULL, 10);
- } else {
- url->host = g_strndup (url_string, slash - url_string);
- camel_url_decode (url->host);
- url->port = 0;
- }
-
- url_string = slash;
- }
-
- /* Find query */
- question = memchr (url_string, '?', end - url_string);
- if (question) {
- if (question[1]) {
- url->query = g_strndup (question + 1,
- end - (question + 1));
- camel_url_decode (url->query);
- }
- end = question;
- }
-
- /* Find parameters */
- semi = memchr (url_string, ';', end - url_string);
- if (semi) {
- if (semi[1]) {
- const char *cur, *p, *eq;
- char *name, *value;
-
- for (cur = semi + 1; cur < end; cur = p + 1) {
- p = memchr (cur, ';', end - cur);
- if (!p)
- p = end;
- eq = memchr (cur, '=', p - cur);
- if (eq) {
- name = g_strndup (cur, eq - cur);
- value = g_strndup (eq + 1, p - (eq + 1));
- camel_url_decode (value);
- } else {
- name = g_strndup (cur, p - cur);
- value = g_strdup ("");
- }
- camel_url_decode (name);
- g_datalist_set_data_full (&url->params, name,
- value, g_free);
- g_free (name);
- }
- }
- end = semi;
- }
-
- if (end != url_string) {
- url->path = g_strndup (url_string, end - url_string);
- camel_url_decode (url->path);
- }
-
- /* Apply base URL. Again, this is spelled out in RFC 1808. */
- if (base && !url->protocol && url->host)
- url->protocol = g_strdup (base->protocol);
- else if (base && !url->protocol) {
- if (!url->user && !url->authmech && !url->passwd &&
- !url->host && !url->port && !url->path &&
- !url->params && !url->query && !url->fragment)
- url->fragment = g_strdup (base->fragment);
-
- url->protocol = g_strdup (base->protocol);
- url->user = g_strdup (base->user);
- url->authmech = g_strdup (base->authmech);
- url->passwd = g_strdup (base->passwd);
- url->host = g_strdup (base->host);
- url->port = base->port;
-
- if (!url->path) {
- url->path = g_strdup (base->path);
- if (!url->params) {
- g_datalist_foreach (&base->params, copy_param,
- &url->params);
- if (!url->query)
- url->query = g_strdup (base->query);
- }
- } else if (*url->path != '/') {
- char *newpath, *last, *p, *q;
-
- last = strrchr (base->path, '/');
- if (last) {
- newpath = g_strdup_printf ("%.*s/%s",
- last - base->path,
- base->path,
- url->path);
- } else
- newpath = g_strdup_printf ("/%s", url->path);
-
- /* Remove "./" where "." is a complete segment. */
- for (p = newpath + 1; *p; ) {
- if (*(p - 1) == '/' &&
- *p == '.' && *(p + 1) == '/')
- memmove (p, p + 2, strlen (p + 2) + 1);
- else
- p++;
- }
- /* Remove "." at end. */
- if (p > newpath + 2 &&
- *(p - 1) == '.' && *(p - 2) == '/')
- *(p - 1) = '\0';
- /* Remove "<segment>/../" where <segment> != ".." */
- for (p = newpath + 1; *p; ) {
- if (!strncmp (p, "../", 3)) {
- p += 3;
- continue;
- }
- q = strchr (p + 1, '/');
- if (!q)
- break;
- if (strncmp (q, "/../", 4) != 0) {
- p = q + 1;
- continue;
- }
- memmove (p, q + 4, strlen (q + 4) + 1);
- p = newpath + 1;
- }
- /* Remove "<segment>/.." at end */
- q = strrchr (newpath, '/');
- if (q && !strcmp (q, "/..")) {
- p = q - 1;
- while (p > newpath && *p != '/')
- p--;
- if (strncmp (p, "/../", 4) != 0)
- *(p + 1) = 0;
- }
- g_free (url->path);
- url->path = newpath;
- }
- }
-
- return url;
-}
-
-static void
-copy_param (GQuark key_id, gpointer data, gpointer user_data)
-{
- GData **copy = user_data;
-
- g_datalist_id_set_data_full (copy, key_id, g_strdup (data), g_free);
-}
-
-/**
- * camel_url_new:
- * @url_string: a URL
- * @ex: a CamelException
- *
- * Parses an absolute URL.
- *
- * Return value: a CamelURL, or %NULL.
- **/
-CamelURL *
-camel_url_new (const char *url_string, CamelException *ex)
-{
- CamelURL *url = camel_url_new_with_base (NULL, url_string);
-
- if (!url->protocol) {
- camel_url_free (url);
- camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID,
- _("Could not parse URL `%s'"),
- url_string);
- return NULL;
- }
- return url;
-}
-
-/**
- * camel_url_to_string:
- * @url: a CamelURL
- * @flags: additional translation options.
- *
- * Return value: a string representing @url, which the caller must free.
- **/
-char *
-camel_url_to_string (CamelURL *url, guint32 flags)
-{
- GString *str;
- char *enc, *return_result;
-
- /* IF YOU CHANGE ANYTHING IN THIS FUNCTION, RUN
- * tests/misc/url AFTERWARD.
- */
-
- str = g_string_sized_new (20);
-
- if (url->protocol)
- g_string_sprintfa (str, "%s:", url->protocol);
- if (url->host) {
- g_string_append (str, "//");
- if (url->user) {
- enc = camel_url_encode (url->user, TRUE, ":;@/");
- g_string_append (str, enc);
- g_free (enc);
- }
- if (url->authmech && *url->authmech) {
- enc = camel_url_encode (url->authmech, TRUE, ":@/");
- g_string_sprintfa (str, ";auth=%s", enc);
- g_free (enc);
- }
- if (url->passwd && !(flags & CAMEL_URL_HIDE_PASSWORD)) {
- enc = camel_url_encode (url->passwd, TRUE, "@/");
- g_string_sprintfa (str, ":%s", enc);
- g_free (enc);
- }
- if (url->host) {
- enc = camel_url_encode (url->host, TRUE, ":/");
- g_string_sprintfa (str, "%s%s", url->user ? "@" : "", enc);
- g_free (enc);
- }
- if (url->port)
- g_string_sprintfa (str, ":%d", url->port);
- if (!url->path && (url->params || url->query || url->fragment))
- g_string_append_c (str, '/');
- }
-
- if (url->path) {
- enc = camel_url_encode (url->path, FALSE, ";?#");
- g_string_sprintfa (str, "%s", enc);
- g_free (enc);
- }
- if (url->params && !(flags & CAMEL_URL_HIDE_PARAMS))
- g_datalist_foreach (&url->params, output_param, str);
- if (url->query) {
- enc = camel_url_encode (url->query, FALSE, "#");
- g_string_sprintfa (str, "?%s", enc);
- g_free (enc);
- }
- if (url->fragment) {
- enc = camel_url_encode (url->fragment, FALSE, NULL);
- g_string_sprintfa (str, "#%s", enc);
- g_free (enc);
- }
-
- return_result = str->str;
- g_string_free (str, FALSE);
- return return_result;
-}
-
-static void
-output_param (GQuark key_id, gpointer data, gpointer user_data)
-{
- GString *str = user_data;
- char *enc;
-
- enc = camel_url_encode (g_quark_to_string (key_id), FALSE, "?#");
- g_string_sprintfa (str, ";%s", enc);
- g_free (enc);
- if (*(char *)data) {
- enc = camel_url_encode (data, FALSE, "?#");
- g_string_sprintfa (str, "=%s", enc);
- g_free (enc);
- }
-}
-
-/**
- * camel_url_free:
- * @url: a CamelURL
- *
- * Frees @url
- **/
-void
-camel_url_free (CamelURL *url)
-{
- g_return_if_fail (url);
-
- g_free (url->protocol);
- g_free (url->user);
- g_free (url->authmech);
- g_free (url->passwd);
- g_free (url->host);
- g_free (url->path);
- g_datalist_clear (&url->params);
- g_free (url->query);
- g_free (url->fragment);
-
- g_free (url);
-}
-
-
-#define DEFINE_CAMEL_URL_SET(part) \
-void \
-camel_url_set_##part (CamelURL *url, const char *part) \
-{ \
- g_free (url->part); \
- url->part = g_strdup (part); \
-}
-
-DEFINE_CAMEL_URL_SET (protocol)
-DEFINE_CAMEL_URL_SET (user)
-DEFINE_CAMEL_URL_SET (authmech)
-DEFINE_CAMEL_URL_SET (passwd)
-DEFINE_CAMEL_URL_SET (host)
-DEFINE_CAMEL_URL_SET (path)
-DEFINE_CAMEL_URL_SET (query)
-DEFINE_CAMEL_URL_SET (fragment)
-
-void
-camel_url_set_port (CamelURL *url, int port)
-{
- url->port = port;
-}
-
-void
-camel_url_set_param (CamelURL *url, const char *name, const char *value)
-{
- g_datalist_set_data (&url->params, name, value ? g_strdup (value) : NULL);
-}
-
-const char *
-camel_url_get_param (CamelURL *url, const char *name)
-{
- return g_datalist_get_data (&url->params, name);
-}
-
-
-/**
- * camel_url_encode:
- * @part: a URL part
- * @escape_unsafe: whether or not to %-escape "unsafe" characters.
- * ("%#<>{}|\^~[]`)
- * @escape_extra: additional characters to escape.
- *
- * This %-encodes the given URL part and returns the escaped version
- * in allocated memory, which the caller must free when it is done.
- **/
-char *
-camel_url_encode (char *part, gboolean escape_unsafe, char *escape_extra)
-{
- char *work, *p;
-
- /* worst case scenario = 3 times the initial */
- p = work = g_malloc (3 * strlen (part) + 1);
-
- while (*part) {
- if (((guchar) *part >= 127) || ((guchar) *part <= ' ') ||
- (escape_unsafe && strchr ("\"%#<>{}|\\^~[]`", *part)) ||
- (escape_extra && strchr (escape_extra, *part))) {
- sprintf (p, "%%%.02hX", (guchar) *part++);
- p += 3;
- } else
- *p++ = *part++;
- }
- *p = '\0';
-
- return work;
-}
-
-#define HEXVAL(c) (isdigit (c) ? (c) - '0' : tolower (c) - 'a' + 10)
-
-/**
- * camel_url_decode:
- * @part: a URL part
- *
- * %-decodes the passed-in URL *in place*. The decoded version is
- * never longer than the encoded version, so there does not need to
- * be any additional space at the end of the string.
- */
-void
-camel_url_decode (char *part)
-{
- guchar *s, *d;
-
- s = d = (guchar *)part;
- while (*s) {
- if (*s == '%') {
- if (isxdigit (s[1]) && isxdigit (s[2])) {
- *d++ = HEXVAL (s[1]) * 16 + HEXVAL (s[2]);
- s += 3;
- } else
- *d++ = *s++;
- } else
- *d++ = *s++;
- }
- *d = '\0';
-}
-
-guint
-camel_url_hash (const void *v)
-{
- const CamelURL *u = v;
- guint hash = 0;
-
-#define ADD_HASH(s) if (s) hash ^= g_str_hash (s);
-
- ADD_HASH (u->protocol);
- ADD_HASH (u->user);
- ADD_HASH (u->authmech);
- ADD_HASH (u->host);
- ADD_HASH (u->path);
- ADD_HASH (u->query);
- hash ^= u->port;
-
- return hash;
-}
-
-static int
-check_equal (char *s1, char *s2)
-{
- if (s1 == NULL) {
- if (s2 == NULL)
- return TRUE;
- else
- return FALSE;
- }
-
- if (s2 == NULL)
- return FALSE;
-
- return strcmp (s1, s2) == 0;
-}
-
-int
-camel_url_equal(const void *v, const void *v2)
-{
- const CamelURL *u1 = v, *u2 = v2;
-
- return check_equal(u1->protocol, u2->protocol)
- && check_equal(u1->user, u2->user)
- && check_equal(u1->authmech, u2->authmech)
- && check_equal(u1->host, u2->host)
- && check_equal(u1->path, u2->path)
- && check_equal(u1->query, u2->query)
- && u1->port == u2->port;
-}
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