#include <vlc_aout_intf.h>
#include <vlc_strings.h>
-#include <vlc_url.h>
#include <vlc_charset.h>
#include <vlc_fs.h>
#include <libvlc.h>
#include <errno.h>
-/**
- * Decode encoded URI component. See also decode_URI().
- * \return decoded duplicated string
- */
-char *decode_URI_duplicate( const char *psz )
-{
- char *psz_dup = strdup( psz );
- decode_URI( psz_dup );
- return psz_dup;
-}
-
-/**
- * Decode an encoded URI component in place.
- * <b>This function does NOT decode entire URIs.</b>
- * It decodes components (e.g. host name, directory, file name).
- * Decoded URIs do not exist in the real world (see RFC3986 §2.4).
- * Complete URIs are always "encoded" (or they are syntaxically invalid).
- *
- * Note that URI encoding is different from Javascript escaping. Especially,
- * white spaces and Unicode non-ASCII code points are encoded differently.
- *
- * \return psz on success, NULL if it was not properly encoded
- */
-char *decode_URI( char *psz )
-{
- unsigned char *in = (unsigned char *)psz, *out = in, c;
-
- if( psz == NULL )
- return NULL;
-
- while( ( c = *in++ ) != '\0' )
- {
- switch( c )
- {
- case '%':
- {
- char hex[3];
-
- if( ( ( hex[0] = *in++ ) == 0 )
- || ( ( hex[1] = *in++ ) == 0 ) )
- return NULL;
-
- hex[2] = '\0';
- *out++ = (unsigned char)strtoul( hex, NULL, 0x10 );
- break;
- }
-
- default:
- /* Inserting non-ASCII or non-printable characters is unsafe,
- * and no sane browser will send these unencoded */
- if( ( c < 32 ) || ( c > 127 ) )
- *out++ = '?';
- else
- *out++ = c;
- }
- }
- *out = '\0';
- return psz;
-}
-
-static inline bool isurisafe( int c )
-{
- /* These are the _unreserved_ URI characters (RFC3986 §2.3) */
- return ( (unsigned char)( c - 'a' ) < 26 )
- || ( (unsigned char)( c - 'A' ) < 26 )
- || ( (unsigned char)( c - '0' ) < 10 )
- || ( strchr( "-._~", c ) != NULL );
-}
-
-static char *encode_URI_bytes (const char *psz_uri, size_t len)
-{
- char *psz_enc = malloc (3 * len + 1), *out = psz_enc;
- if (psz_enc == NULL)
- return NULL;
-
- for (size_t i = 0; i < len; i++)
- {
- static const char hex[16] = "0123456789ABCDEF";
- uint8_t c = *psz_uri;
-
- if( isurisafe( c ) )
- *out++ = c;
- /* This is URI encoding, not HTTP forms:
- * Space is encoded as '%20', not '+'. */
- else
- {
- *out++ = '%';
- *out++ = hex[c >> 4];
- *out++ = hex[c & 0xf];
- }
- psz_uri++;
- }
- *out++ = '\0';
-
- out = realloc (psz_enc, out - psz_enc);
- return out ? out : psz_enc; /* realloc() can fail (safe) */
-}
-
-/**
- * Encodes a URI component (RFC3986 §2).
- *
- * @param psz_uri nul-terminated UTF-8 representation of the component.
- * Obviously, you can't pass a URI containing a nul character, but you don't
- * want to do that, do you?
- *
- * @return encoded string (must be free()'d), or NULL for ENOMEM.
- */
-char *encode_URI_component( const char *psz_uri )
-{
- return encode_URI_bytes (psz_uri, strlen (psz_uri));
-}
-
-
static const struct xml_entity_s
{
char psz_entity[8];
}
}
-#include <vlc_url.h>
-#ifdef WIN32
-# include <io.h>
-#endif
-
-/**
- * Convert a file path to a URI.
- * If already a URI, return a copy of the string.
- * @param path path to convert (or URI to copy)
- * @param scheme URI scheme to use (default is auto: "file", "fd" or "smb")
- * @return a nul-terminated URI string (use free() to release it),
- * or NULL in case of error
- */
-char *make_URI (const char *path, const char *scheme)
-{
- if (path == NULL)
- return NULL;
- if (scheme == NULL && !strcmp (path, "-"))
- return strdup ("fd://0"); // standard input
- if (strstr (path, "://") != NULL)
- return strdup (path); /* Already a URI */
- /* Note: VLC cannot handle URI schemes without double slash after the
- * scheme name (such as mailto: or news:). */
-
- char *buf;
-
-#ifdef __OS2__
- char p[strlen (path) + 1];
-
- for (buf = p; *path; buf++, path++)
- *buf = (*path == '/') ? DIR_SEP_CHAR : *path;
- *buf = '\0';
-
- path = p;
-#endif
-
-#if defined( WIN32 ) || defined( __OS2__ )
- /* Drive letter */
- if (isalpha ((unsigned char)path[0]) && (path[1] == ':'))
- {
- if (asprintf (&buf, "%s:///%c:", scheme ? scheme : "file",
- path[0]) == -1)
- buf = NULL;
- path += 2;
-# warning Drive letter-relative path not implemented!
- if (path[0] != DIR_SEP_CHAR)
- return NULL;
- }
- else
-#endif
- if (!strncmp (path, "\\\\", 2))
- { /* Windows UNC paths */
-#if !defined( WIN32 ) && !defined( __OS2__ )
- if (scheme != NULL)
- return NULL; /* remote files not supported */
-
- /* \\host\share\path -> smb://host/share/path */
- if (strchr (path + 2, '\\') != NULL)
- { /* Convert backslashes to slashes */
- char *dup = strdup (path);
- if (dup == NULL)
- return NULL;
- for (size_t i = 2; dup[i]; i++)
- if (dup[i] == '\\')
- dup[i] = DIR_SEP_CHAR;
-
- char *ret = make_URI (dup, scheme);
- free (dup);
- return ret;
- }
-# define SMB_SCHEME "smb"
-#else
- /* \\host\share\path -> file://host/share/path */
-# define SMB_SCHEME "file"
-#endif
- size_t hostlen = strcspn (path + 2, DIR_SEP);
-
- buf = malloc (sizeof (SMB_SCHEME) + 3 + hostlen);
- if (buf != NULL)
- snprintf (buf, sizeof (SMB_SCHEME) + 3 + hostlen,
- SMB_SCHEME"://%s", path + 2);
- path += 2 + hostlen;
-
- if (path[0] == '\0')
- return buf; /* Hostname without path */
- }
- else
- if (path[0] != DIR_SEP_CHAR)
- { /* Relative path: prepend the current working directory */
- char *cwd, *ret;
-
- if ((cwd = vlc_getcwd ()) == NULL)
- return NULL;
- if (asprintf (&buf, "%s"DIR_SEP"%s", cwd, path) == -1)
- buf = NULL;
-
- free (cwd);
- ret = (buf != NULL) ? make_URI (buf, scheme) : NULL;
- free (buf);
- return ret;
- }
- else
- if (asprintf (&buf, "%s://", scheme ? scheme : "file") == -1)
- buf = NULL;
- if (buf == NULL)
- return NULL;
-
- assert (path[0] == DIR_SEP_CHAR);
-
- /* Absolute file path */
- for (const char *ptr = path + 1;; ptr++)
- {
- size_t len = strcspn (ptr, DIR_SEP);
- char *component = encode_URI_bytes (ptr, len);
- if (component == NULL)
- {
- free (buf);
- return NULL;
- }
- char *uri;
- int val = asprintf (&uri, "%s/%s", buf, component);
- free (component);
- free (buf);
- if (val == -1)
- return NULL;
- buf = uri;
- ptr += len;
- if (*ptr == '\0')
- return buf;
- }
-}
-
-/**
- * Tries to convert a URI to a local (UTF-8-encoded) file path.
- * @param url URI to convert
- * @return NULL on error, a nul-terminated string otherwise
- * (use free() to release it)
- */
-char *make_path (const char *url)
-{
- char *ret = NULL;
- char *end;
-
- char *path = strstr (url, "://");
- if (path == NULL)
- return NULL; /* unsupported scheme or invalid syntax */
-
- end = memchr (url, '/', path - url);
- size_t schemelen = ((end != NULL) ? end : path) - url;
- path += 3; /* skip "://" */
-
- /* Remove HTML anchor if present */
- end = strchr (path, '#');
- if (end)
- path = strndup (path, end - path);
- else
- path = strdup (path);
- if (unlikely(path == NULL))
- return NULL; /* boom! */
-
- /* Decode path */
- decode_URI (path);
-
- if (schemelen == 4 && !strncasecmp (url, "file", 4))
- {
-#if (!defined (WIN32) && !defined (__OS2__)) || defined (UNDER_CE)
- /* Leading slash => local path */
- if (*path == '/')
- return path;
- /* Local path disguised as a remote one */
- if (!strncasecmp (path, "localhost/", 10))
- return memmove (path, path + 9, strlen (path + 9) + 1);
-#else
- /* cannot start with a space */
- if (*path == ' ')
- goto out;
- for (char *p = strchr (path, '/'); p; p = strchr (p + 1, '/'))
- *p = '\\';
-
- /* Leading backslash => local path */
- if (*path == '\\')
- return memmove (path, path + 1, strlen (path + 1) + 1);
- /* Local path disguised as a remote one */
- if (!strncasecmp (path, "localhost\\", 10))
- return memmove (path, path + 10, strlen (path + 10) + 1);
- /* UNC path */
- if (*path && asprintf (&ret, "\\\\%s", path) == -1)
- ret = NULL;
-#endif
- /* non-local path :-( */
- }
- else
- if (schemelen == 2 && !strncasecmp (url, "fd", 2))
- {
- int fd = strtol (path, &end, 0);
-
- if (*end)
- goto out;
-
-#if !defined( WIN32 ) && !defined( __OS2__ )
- switch (fd)
- {
- case 0:
- ret = strdup ("/dev/stdin");
- break;
- case 1:
- ret = strdup ("/dev/stdout");
- break;
- case 2:
- ret = strdup ("/dev/stderr");
- break;
- default:
- if (asprintf (&ret, "/dev/fd/%d", fd) == -1)
- ret = NULL;
- }
-#else
- /* XXX: Does this work on WinCE? */
- if (fd < 2)
- ret = strdup ("CON");
- else
- ret = NULL;
-#endif
- }
-
-out:
- free (path);
- return ret; /* unknown scheme */
-}
-
/*
Decodes a duration as defined by ISO 8601
http://en.wikipedia.org/wiki/ISO_8601#Durations
--- /dev/null
+/*****************************************************************************
+ * url.c: URL related functions
+ *****************************************************************************
+ * Copyright (C) 2006 VLC authors and VideoLAN
+ * Copyright (C) 2008-2012 Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#ifdef WIN32
+# include <io.h>
+#endif
+
+#include <vlc_common.h>
+#include <vlc_url.h>
+#include <vlc_fs.h>
+
+/**
+ * Decodes an encoded URI component. See also decode_URI().
+ * \return decoded string allocated on the heap, or NULL on error.
+ */
+char *decode_URI_duplicate (const char *str)
+{
+ char *buf = strdup (str);
+ decode_URI (buf);
+ return buf;
+}
+
+/**
+ * Decodes an encoded URI component in place.
+ * <b>This function does NOT decode entire URIs.</b> Instead, it decodes one
+ * component at a time (e.g. host name, directory, file name).
+ * Decoded URIs do not exist in the real world (see RFC3986 §2.4).
+ * Complete URIs are always "encoded" (or they are syntaxically invalid).
+ *
+ * Note that URI encoding is different from Javascript escaping. Especially,
+ * white spaces and Unicode non-ASCII code points are encoded differently.
+ *
+ * \param str nul-terminated URI component to decode
+ * \return str on success, NULL if it was not properly encoded
+ */
+char *decode_URI (char *str)
+{
+ char *in = str, *out = str;
+ if (in == NULL)
+ return NULL;
+
+ signed char c;
+ while ((c = *(in++)) != '\0')
+ {
+ if (c == '%')
+ {
+ char hex[3];
+
+ if (!(hex[0] = *(in++)) || !(hex[1] = *(in++)))
+ return NULL;
+ hex[2] = '\0';
+ *(out++) = strtoul (hex, NULL, 0x10);
+ }
+ else
+ if (c >= 32)
+ *(out++) = c;
+ else
+ /* Inserting non-ASCII or non-printable characters is unsafe,
+ * and no sane browser will send these unencoded */
+ *(out++) = '?';
+ }
+ *out = '\0';
+ return str;
+}
+
+static inline bool isurisafe (int c)
+{
+ /* These are the _unreserved_ URI characters (RFC3986 §2.3) */
+ return ((unsigned char)(c - 'a') < 26)
+ || ((unsigned char)(c - 'A') < 26)
+ || ((unsigned char)(c - '0') < 10)
+ || (strchr ("-._~", c) != NULL);
+}
+
+static char *encode_URI_bytes (const char *str, size_t *restrict lenp)
+{
+ char *buf = malloc (3 * *lenp + 1);
+ if (unlikely(buf == NULL))
+ return NULL;
+
+ char *out = buf;
+ for (size_t i = 0; i < *lenp; i++)
+ {
+ static const char hex[16] = "0123456789ABCDEF";
+ unsigned char c = str[i];
+
+ if (isurisafe (c))
+ *(out++) = c;
+ /* This is URI encoding, not HTTP forms:
+ * Space is encoded as '%20', not '+'. */
+ else
+ {
+ *(out++) = '%';
+ *(out++) = hex[c >> 4];
+ *(out++) = hex[c & 0xf];
+ }
+ }
+
+ *lenp = out - buf;
+ out = realloc (buf, *lenp + 1);
+ return likely(out != NULL) ? out : buf;
+}
+
+/**
+ * Encodes a URI component (RFC3986 §2).
+ *
+ * @param str nul-terminated UTF-8 representation of the component.
+ * @note Obviously, a URI containing nul bytes cannot be passed.
+ * @return encoded string (must be free()'d), or NULL for ENOMEM.
+ */
+char *encode_URI_component (const char *str)
+{
+ size_t len = strlen (str);
+ char *ret = encode_URI_bytes (str, &len);
+ if (likely(ret != NULL))
+ ret[len] = '\0';
+ return ret;
+}
+
+/**
+ * Builds a URL representation from a local file path.
+ * If already a URI, return a copy of the string.
+ * @param path path to convert (or URI to copy)
+ * @param scheme URI scheme to use (default is auto: "file", "fd" or "smb")
+ * @return a nul-terminated URI string (use free() to release it),
+ * or NULL in case of error
+ */
+char *make_URI (const char *path, const char *scheme)
+{
+ if (path == NULL)
+ return NULL;
+ if (scheme == NULL && !strcmp (path, "-"))
+ return strdup ("fd://0"); // standard input
+ if (strstr (path, "://") != NULL)
+ return strdup (path); /* Already a URI */
+ /* Note: VLC cannot handle URI schemes without double slash after the
+ * scheme name (such as mailto: or news:). */
+
+ char *buf;
+
+#ifdef __OS2__
+ char p[strlen (path) + 1];
+
+ for (buf = p; *path; buf++, path++)
+ *buf = (*path == '/') ? DIR_SEP_CHAR : *path;
+ *buf = '\0';
+
+ path = p;
+#endif
+
+#if defined( WIN32 ) || defined( __OS2__ )
+ /* Drive letter */
+ if (isalpha ((unsigned char)path[0]) && (path[1] == ':'))
+ {
+ if (asprintf (&buf, "%s:///%c:", scheme ? scheme : "file",
+ path[0]) == -1)
+ buf = NULL;
+ path += 2;
+# warning Drive letter-relative path not implemented!
+ if (path[0] != DIR_SEP_CHAR)
+ return NULL;
+ }
+ else
+#endif
+ if (!strncmp (path, "\\\\", 2))
+ { /* Windows UNC paths */
+#if !defined( WIN32 ) && !defined( __OS2__ )
+ if (scheme != NULL)
+ return NULL; /* remote files not supported */
+
+ /* \\host\share\path -> smb://host/share/path */
+ if (strchr (path + 2, '\\') != NULL)
+ { /* Convert backslashes to slashes */
+ char *dup = strdup (path);
+ if (dup == NULL)
+ return NULL;
+ for (size_t i = 2; dup[i]; i++)
+ if (dup[i] == '\\')
+ dup[i] = DIR_SEP_CHAR;
+
+ char *ret = make_URI (dup, scheme);
+ free (dup);
+ return ret;
+ }
+# define SMB_SCHEME "smb"
+#else
+ /* \\host\share\path -> file://host/share/path */
+# define SMB_SCHEME "file"
+#endif
+ size_t hostlen = strcspn (path + 2, DIR_SEP);
+
+ buf = malloc (sizeof (SMB_SCHEME) + 3 + hostlen);
+ if (buf != NULL)
+ snprintf (buf, sizeof (SMB_SCHEME) + 3 + hostlen,
+ SMB_SCHEME"://%s", path + 2);
+ path += 2 + hostlen;
+
+ if (path[0] == '\0')
+ return buf; /* Hostname without path */
+ }
+ else
+ if (path[0] != DIR_SEP_CHAR)
+ { /* Relative path: prepend the current working directory */
+ char *cwd, *ret;
+
+ if ((cwd = vlc_getcwd ()) == NULL)
+ return NULL;
+ if (asprintf (&buf, "%s"DIR_SEP"%s", cwd, path) == -1)
+ buf = NULL;
+
+ free (cwd);
+ ret = (buf != NULL) ? make_URI (buf, scheme) : NULL;
+ free (buf);
+ return ret;
+ }
+ else
+ if (asprintf (&buf, "%s://", scheme ? scheme : "file") == -1)
+ buf = NULL;
+ if (buf == NULL)
+ return NULL;
+
+ /* Absolute file path */
+ assert (path[0] == DIR_SEP_CHAR);
+ do
+ {
+ size_t len = strcspn (++path, DIR_SEP);
+ path += len;
+
+ char *component = encode_URI_bytes (path - len, &len);
+ if (unlikely(component == NULL))
+ {
+ free (buf);
+ return NULL;
+ }
+ component[len] = '\0';
+
+ char *uri;
+ int val = asprintf (&uri, "%s/%s", buf, component);
+ free (component);
+ free (buf);
+ if (unlikely(val == -1))
+ return NULL;
+ buf = uri;
+ }
+ while (*path);
+
+ return buf;
+}
+
+/**
+ * Tries to convert a URI to a local (UTF-8-encoded) file path.
+ * @param url URI to convert
+ * @return NULL on error, a nul-terminated string otherwise
+ * (use free() to release it)
+ */
+char *make_path (const char *url)
+{
+ char *ret = NULL;
+ char *end;
+
+ char *path = strstr (url, "://");
+ if (path == NULL)
+ return NULL; /* unsupported scheme or invalid syntax */
+
+ end = memchr (url, '/', path - url);
+ size_t schemelen = ((end != NULL) ? end : path) - url;
+ path += 3; /* skip "://" */
+
+ /* Remove HTML anchor if present */
+ end = strchr (path, '#');
+ if (end)
+ path = strndup (path, end - path);
+ else
+ path = strdup (path);
+ if (unlikely(path == NULL))
+ return NULL; /* boom! */
+
+ /* Decode path */
+ decode_URI (path);
+
+ if (schemelen == 4 && !strncasecmp (url, "file", 4))
+ {
+#if (!defined (WIN32) && !defined (__OS2__)) || defined (UNDER_CE)
+ /* Leading slash => local path */
+ if (*path == '/')
+ return path;
+ /* Local path disguised as a remote one */
+ if (!strncasecmp (path, "localhost/", 10))
+ return memmove (path, path + 9, strlen (path + 9) + 1);
+#else
+ /* cannot start with a space */
+ if (*path == ' ')
+ goto out;
+ for (char *p = strchr (path, '/'); p; p = strchr (p + 1, '/'))
+ *p = '\\';
+
+ /* Leading backslash => local path */
+ if (*path == '\\')
+ return memmove (path, path + 1, strlen (path + 1) + 1);
+ /* Local path disguised as a remote one */
+ if (!strncasecmp (path, "localhost\\", 10))
+ return memmove (path, path + 10, strlen (path + 10) + 1);
+ /* UNC path */
+ if (*path && asprintf (&ret, "\\\\%s", path) == -1)
+ ret = NULL;
+#endif
+ /* non-local path :-( */
+ }
+ else
+ if (schemelen == 2 && !strncasecmp (url, "fd", 2))
+ {
+ int fd = strtol (path, &end, 0);
+
+ if (*end)
+ goto out;
+
+#if !defined( WIN32 ) && !defined( __OS2__ )
+ switch (fd)
+ {
+ case 0:
+ ret = strdup ("/dev/stdin");
+ break;
+ case 1:
+ ret = strdup ("/dev/stdout");
+ break;
+ case 2:
+ ret = strdup ("/dev/stderr");
+ break;
+ default:
+ if (asprintf (&ret, "/dev/fd/%d", fd) == -1)
+ ret = NULL;
+ }
+#else
+ /* XXX: Does this work on WinCE? */
+ if (fd < 2)
+ ret = strdup ("CON");
+ else
+ ret = NULL;
+#endif
+ }
+
+out:
+ free (path);
+ return ret; /* unknown scheme */
+}
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