/*
This file is part of GNUnet.
- (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
+ (C) 2003--2014 Christian Grothoff (and other contributing authors)
GNUnet 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, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
* GNUnet URIs are of the general form "gnunet://MODULE/IDENTIFIER".
* The specific structure of "IDENTIFIER" depends on the module and
* maybe differenciated into additional subcategories if applicable.
- * This module only deals with ecrs identifiers (MODULE = "ecrs").
+ * This module only deals with fs identifiers (MODULE = "fs").
* <p>
*
- * This module only parses URIs for the AFS module. The ECRS URIs fall
+ * This module only parses URIs for the AFS module. The FS URIs fall
* into four categories, "chk", "sks", "ksk" and "loc". The first three
* categories were named in analogy (!) to Freenet, but they do NOT
* work in exactly the same way. They are very similar from the user's
* <ul><li>
*
* First, there are URIs that identify a file. They have the format
- * "gnunet://ecrs/chk/HEX1.HEX2.SIZE". These URIs can be used to
+ * "gnunet://fs/chk/HEX1.HEX2.SIZE". These URIs can be used to
* download the file. The description, filename, mime-type and other
* meta-data is NOT part of the file-URI since a URI uniquely
* identifies a resource (and the contents of the file would be the
* </li><li>
*
* The second category identifies entries in a namespace. The format
- * is "gnunet://ecrs/sks/NAMESPACE/IDENTIFIER" where the namespace
+ * is "gnunet://fs/sks/NAMESPACE/IDENTIFIER" where the namespace
* should be given in HEX. Applications may allow using a nickname
* for the namespace if the nickname is not ambiguous. The identifier
* can be either an ASCII sequence or a HEX-encoding. If the
* </li> <li>
*
* The third category identifies ordinary searches. The format is
- * "gnunet://ecrs/ksk/KEYWORD[+KEYWORD]*". Using the "+" syntax
+ * "gnunet://fs/ksk/KEYWORD[+KEYWORD]*". Using the "+" syntax
* it is possible to encode searches with the boolean "AND" operator.
* "+" is used since it indicates a commutative 'and' operation and
* is unlikely to be used in a keyword by itself.
* </li><li>
*
* The last category identifies a datum on a specific machine. The
- * format is "gnunet://ecrs/loc/HEX1.HEX2.SIZE.PEER.SIG.EXPTIME". PEER is
+ * format is "gnunet://fs/loc/HEX1.HEX2.SIZE.PEER.SIG.EXPTIME". PEER is
* the BinName of the public key of the peer storing the datum. The
* signature (SIG) certifies that this peer has this content.
* HEX1, HEX2 and SIZE correspond to a 'chk' URI.
#include "platform.h"
#include "gnunet_fs_service.h"
#include "gnunet_signatures.h"
-#include "fs.h"
+#include "fs_api.h"
+#include <unitypes.h>
+#include <unicase.h>
+#include <uniconv.h>
+#include <unistr.h>
+#include <unistdio.h>
+
/**
* into HashMaps. The key may change between FS implementations.
*
* @param uri uri to convert to a unique key
- * @param key wherer to store the unique key
+ * @param key where to store the unique key
*/
-void
+void
GNUNET_FS_uri_to_key (const struct GNUNET_FS_Uri *uri,
- GNUNET_HashCode * key)
+ struct GNUNET_HashCode *key)
{
switch (uri->type)
- {
- case chk:
- *key = uri->data.chk.chk.query;
- return;
- case sks:
- GNUNET_CRYPTO_hash (uri->data.sks.identifier,
- strlen (uri->data.sks.identifier), key);
- break;
- case ksk:
- if (uri->data.ksk.keywordCount > 0)
- GNUNET_CRYPTO_hash (uri->data.ksk.keywords[0],
- strlen (uri->data.ksk.keywords[0]), key);
- break;
- case loc:
- GNUNET_CRYPTO_hash (&uri->data.loc.fi,
- sizeof (struct FileIdentifier) +
- sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), key);
- break;
- default:
- memset (key, 0, sizeof (GNUNET_HashCode));
- break;
- }
+ {
+ case GNUNET_FS_URI_CHK:
+ *key = uri->data.chk.chk.query;
+ return;
+ case GNUNET_FS_URI_SKS:
+ GNUNET_CRYPTO_hash (uri->data.sks.identifier,
+ strlen (uri->data.sks.identifier), key);
+ break;
+ case GNUNET_FS_URI_KSK:
+ if (uri->data.ksk.keywordCount > 0)
+ GNUNET_CRYPTO_hash (uri->data.ksk.keywords[0],
+ strlen (uri->data.ksk.keywords[0]), key);
+ break;
+ case GNUNET_FS_URI_LOC:
+ GNUNET_CRYPTO_hash (&uri->data.loc.fi,
+ sizeof (struct FileIdentifier) +
+ sizeof (struct GNUNET_PeerIdentity),
+ key);
+ break;
+ default:
+ memset (key, 0, sizeof (struct GNUNET_HashCode));
+ break;
+ }
}
* Convert keyword URI to a human readable format
* (i.e. the search query that was used in the first place)
*
- * @param uri ksk uri to convert to a string
+ * @param uri ksk uri to convert to a string
* @return string with the keywords
*/
char *
char **keywords;
unsigned int keywordCount;
- if ((uri == NULL) || (uri->type != ksk))
- {
- GNUNET_break (0);
- return NULL;
- }
+ if ((NULL == uri) || (GNUNET_FS_URI_KSK != uri->type))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
keywords = uri->data.ksk.keywords;
keywordCount = uri->data.ksk.keywordCount;
n = keywordCount + 1;
for (i = 0; i < keywordCount; i++)
- {
- keyword = keywords[i];
- n += strlen (keyword) - 1;
- if (NULL != strstr (&keyword[1], " "))
- n += 2;
- if (keyword[0] == '+')
- n++;
- }
+ {
+ keyword = keywords[i];
+ n += strlen (keyword) - 1;
+ if (NULL != strstr (&keyword[1], " "))
+ n += 2;
+ if (keyword[0] == '+')
+ n++;
+ }
ret = GNUNET_malloc (n);
strcpy (ret, "");
for (i = 0; i < keywordCount; i++)
+ {
+ keyword = keywords[i];
+ if (NULL != strstr (&keyword[1], " "))
{
- keyword = keywords[i];
- if (NULL != strstr (&keyword[1], " "))
- {
- strcat (ret, "\"");
- if (keyword[0] == '+')
- strcat (ret, keyword);
- else
- strcat (ret, &keyword[1]);
- strcat (ret, "\"");
- }
+ strcat (ret, "\"");
+ if (keyword[0] == '+')
+ strcat (ret, keyword);
else
- {
- if (keyword[0] == '+')
- strcat (ret, keyword);
- else
- strcat (ret, &keyword[1]);
- }
- strcat (ret, " ");
+ strcat (ret, &keyword[1]);
+ strcat (ret, "\"");
+ }
+ else
+ {
+ if (keyword[0] == '+')
+ strcat (ret, keyword);
+ else
+ strcat (ret, &keyword[1]);
}
+ strcat (ret, " ");
+ }
return ret;
}
-
-
/**
* Given a keyword with %-encoding (and possibly quotes to protect
* spaces), return a copy of the keyword without %-encoding and
* without double-quotes (%22). Also, add a space at the beginning
* if there is not a '+'.
- *
+ *
* @param in string with %-encoding
* @param emsg where to store the parser error message (if any)
* @return decodded string with leading space (or preserved plus)
*/
static char *
-percent_decode_keyword (const char *in, char **emsg)
+percent_decode_keyword (const char *in,
+ char **emsg)
{
char *out;
char *ret;
rpos = 0;
wpos = 0;
while (out[rpos] != '\0')
+ {
+ if (out[rpos] == '%')
{
- if (out[rpos] == '%')
- {
- if (1 != sscanf (&out[rpos + 1], "%2X", &hx))
- {
- GNUNET_free (out);
- return NULL;
- }
- rpos += 3;
- if (hx == '"')
- continue; /* skip double quote */
- out[wpos++] = (char) hx;
- }
- else
- {
- out[wpos++] = out[rpos++];
- }
+ if (1 != SSCANF (&out[rpos + 1], "%2X", &hx))
+ {
+ GNUNET_free (out);
+ *emsg = GNUNET_strdup (_(/* xgettext:no-c-format */
+ "Malformed KSK URI (`%' must be followed by HEX number)"));
+ return NULL;
+ }
+ rpos += 3;
+ if (hx == '"')
+ continue; /* skip double quote */
+ out[wpos++] = (char) hx;
}
- out[wpos] = '\0';
- if (out[0] == '+')
+ else
{
- ret = GNUNET_strdup (out);
+ out[wpos++] = out[rpos++];
}
+ }
+ out[wpos] = '\0';
+ if (out[0] == '+')
+ {
+ ret = GNUNET_strdup (out);
+ }
else
- {
- /* need to prefix with space */
- ret = GNUNET_malloc (strlen (out) + 2);
- strcpy (ret, " ");
- strcat (ret, out);
- }
+ {
+ /* need to prefix with space */
+ ret = GNUNET_malloc (strlen (out) + 2);
+ strcpy (ret, " ");
+ strcat (ret, out);
+ }
GNUNET_free (out);
return ret;
}
+#define GNUNET_FS_URI_KSK_PREFIX GNUNET_FS_URI_PREFIX GNUNET_FS_URI_KSK_INFIX
/**
* Parse a KSK URI.
* @return NULL on error, otherwise the KSK URI
*/
static struct GNUNET_FS_Uri *
-uri_ksk_parse (const char *s, char **emsg)
+uri_ksk_parse (const char *s,
+ char **emsg)
{
struct GNUNET_FS_Uri *ret;
char **keywords;
char *dup;
int saw_quote;
- GNUNET_assert (s != NULL);
+ GNUNET_assert (NULL != s);
slen = strlen (s);
- pos = strlen (GNUNET_FS_URI_PREFIX GNUNET_FS_URI_KSK_INFIX);
- if ( (slen <= pos) ||
- (0 != strncmp (s, GNUNET_FS_URI_PREFIX GNUNET_FS_URI_KSK_INFIX,
- pos) ) ||
- (s[slen - 1] == '+') ||
- (s[pos] == '+') )
- return NULL; /* no keywords / malformed */
-
+ pos = strlen (GNUNET_FS_URI_KSK_PREFIX);
+ if ((slen <= pos) || (0 != strncmp (s, GNUNET_FS_URI_KSK_PREFIX, pos)))
+ return NULL; /* not KSK URI */
+ if ((s[slen - 1] == '+') || (s[pos] == '+'))
+ {
+ *emsg =
+ GNUNET_strdup (_("Malformed KSK URI (must not begin or end with `+')"));
+ return NULL;
+ }
max = 1;
saw_quote = 0;
for (i = pos; i < slen; i++)
+ {
+ if ((s[i] == '%') && (&s[i] == strstr (&s[i], "%22")))
{
- if ((s[i] == '%') && (&s[i] == strstr (&s[i], "%22")))
- {
- saw_quote = (saw_quote + 1) % 2;
- i += 3;
- continue;
- }
- if ((s[i] == '+') && (saw_quote == 0))
- {
- max++;
- if (s[i - 1] == '+')
- return NULL; /* "++" not allowed */
- }
+ saw_quote = (saw_quote + 1) % 2;
+ i += 3;
+ continue;
+ }
+ if ((s[i] == '+') && (saw_quote == 0))
+ {
+ max++;
+ if (s[i - 1] == '+')
+ {
+ *emsg = GNUNET_strdup (_("Malformed KSK URI (`++' not allowed)"));
+ return NULL;
+ }
}
+ }
if (saw_quote == 1)
- return NULL; /* quotes not balanced */
+ {
+ *emsg = GNUNET_strdup (_("Malformed KSK URI (quotes not balanced)"));
+ return NULL;
+ }
iret = max;
dup = GNUNET_strdup (s);
keywords = GNUNET_malloc (max * sizeof (char *));
- for (i = slen - 1; i >= pos; i--)
+ for (i = slen - 1; i >= (int) pos; i--)
+ {
+ if ((s[i] == '%') && (&s[i] == strstr (&s[i], "%22")))
{
- if ((s[i] == '%') && (&s[i] == strstr (&s[i], "%22")))
- {
- saw_quote = (saw_quote + 1) % 2;
- i += 3;
- continue;
- }
- if ((dup[i] == '+') && (saw_quote == 0))
- {
- keywords[--max] = percent_decode_keyword (&dup[i + 1], emsg);
- if (NULL == keywords[max])
- goto CLEANUP;
- dup[i] = '\0';
- }
+ saw_quote = (saw_quote + 1) % 2;
+ continue;
}
+ if ((dup[i] == '+') && (saw_quote == 0))
+ {
+ keywords[--max] = percent_decode_keyword (&dup[i + 1], emsg);
+ if (NULL == keywords[max])
+ goto CLEANUP;
+ dup[i] = '\0';
+ }
+ }
keywords[--max] = percent_decode_keyword (&dup[pos], emsg);
if (NULL == keywords[max])
goto CLEANUP;
- GNUNET_assert (max == 0);
+ GNUNET_assert (0 == max);
GNUNET_free (dup);
- ret = GNUNET_malloc (sizeof(struct GNUNET_FS_Uri));
- ret->type = ksk;
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_KSK;
ret->data.ksk.keywordCount = iret;
ret->data.ksk.keywords = keywords;
return ret;
}
+#define GNUNET_FS_URI_SKS_PREFIX GNUNET_FS_URI_PREFIX GNUNET_FS_URI_SKS_INFIX
+
/**
* Parse an SKS URI.
*
* @return NULL on error, SKS URI otherwise
*/
static struct GNUNET_FS_Uri *
-uri_sks_parse (const char *s, char **emsg)
+uri_sks_parse (const char *s,
+ char **emsg)
{
struct GNUNET_FS_Uri *ret;
- GNUNET_HashCode namespace;
- char *identifier;
- unsigned int pos;
- size_t slen;
- char enc[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ struct GNUNET_CRYPTO_EcdsaPublicKey ns;
+ size_t pos;
+ char *end;
GNUNET_assert (s != NULL);
- slen = strlen (s);
- pos = strlen (GNUNET_FS_URI_PREFIX GNUNET_FS_URI_SKS_INFIX);
- if ( (slen <= pos) ||
- (0 != strncmp (s, GNUNET_FS_URI_PREFIX GNUNET_FS_URI_SKS_INFIX,
- pos) ) ||
- (slen < pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1) ||
- (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] != '/') )
- return NULL;
- memcpy (enc, &s[pos], sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded));
- enc[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)-1] = '\0';
- if (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (enc, &namespace))
- return NULL;
- identifier = GNUNET_strdup (&s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)]);
- ret = GNUNET_malloc (sizeof(struct GNUNET_FS_Uri));
- ret->type = sks;
- ret->data.sks.namespace = namespace;
- ret->data.sks.identifier = identifier;
+ pos = strlen (GNUNET_FS_URI_SKS_PREFIX);
+ if ((strlen (s) <= pos) || (0 != strncmp (s, GNUNET_FS_URI_SKS_PREFIX, pos)))
+ return NULL; /* not an SKS URI */
+ end = strchr (&s[pos], '/');
+ if ( (NULL == end) ||
+ (GNUNET_OK !=
+ GNUNET_STRINGS_string_to_data (&s[pos],
+ end - &s[pos],
+ &ns,
+ sizeof (ns))) )
+ {
+ *emsg = GNUNET_strdup (_("Malformed SKS URI (wrong syntax)"));
+ return NULL; /* malformed */
+ }
+ end++; /* skip over '/' */
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_SKS;
+ ret->data.sks.ns = ns;
+ ret->data.sks.identifier = GNUNET_strdup (end);
return ret;
}
+#define GNUNET_FS_URI_CHK_PREFIX GNUNET_FS_URI_PREFIX GNUNET_FS_URI_CHK_INFIX
+
/**
* Parse a CHK URI.
* @return NULL on error, CHK URI otherwise
*/
static struct GNUNET_FS_Uri *
-uri_chk_parse (const char *s, char **emsg)
+uri_chk_parse (const char *s,
+ char **emsg)
{
struct GNUNET_FS_Uri *ret;
struct FileIdentifier fi;
unsigned int pos;
+ unsigned long long flen;
size_t slen;
- char h1[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)];
- char h2[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ char h1[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ char h2[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ if (NULL == s)
+ return NULL;
GNUNET_assert (s != NULL);
-
slen = strlen (s);
- pos = strlen (GNUNET_FS_URI_PREFIX GNUNET_FS_URI_CHK_INFIX);
- if ( (slen < pos + 2 * sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1) ||
- (0 != strncmp (s, GNUNET_FS_URI_PREFIX GNUNET_FS_URI_CHK_INFIX,
- pos) ) ||
- (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] != '.') ||
- (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2 - 1] != '.') )
+ pos = strlen (GNUNET_FS_URI_CHK_PREFIX);
+ if ((slen < pos + 2 * sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1) ||
+ (0 != strncmp (s, GNUNET_FS_URI_CHK_PREFIX, pos)))
+ return NULL; /* not a CHK URI */
+ if ((s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] != '.') ||
+ (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2 - 1] != '.'))
+ {
+ *emsg = GNUNET_strdup (_("Malformed CHK URI (wrong syntax)"));
return NULL;
-
- memcpy (h1,
- &s[pos],
- sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded));
- h1[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)-1] = '\0';
- memcpy (h2,
- &s[pos + sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)],
- sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded));
- h2[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)-1] = '\0';
-
- if ((GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h1,
- &fi.chk.key)) ||
- (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h2,
- &fi.chk.query)) ||
- (1 != SSCANF (&s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2],
- "%llu",
- &fi.file_length)))
+ }
+ memcpy (h1, &s[pos], sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded));
+ h1[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] = '\0';
+ memcpy (h2, &s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)],
+ sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded));
+ h2[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] = '\0';
+
+ if ((GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h1, &fi.chk.key)) ||
+ (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h2, &fi.chk.query)) ||
+ (1 !=
+ SSCANF (&s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2],
+ "%llu", &flen)))
+ {
+ *emsg = GNUNET_strdup (_("Malformed CHK URI (failed to decode CHK)"));
return NULL;
- fi.file_length = GNUNET_htonll (fi.file_length);
-
- ret = GNUNET_malloc (sizeof(struct GNUNET_FS_Uri));
- ret->type = chk;
+ }
+ fi.file_length = GNUNET_htonll (flen);
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_CHK;
ret->data.chk = fi;
return ret;
}
+GNUNET_NETWORK_STRUCT_BEGIN
/**
- * Convert a character back to the binary value
- * that it represents (given base64-encoding).
- *
- * @param a character to convert
- * @return offset in the "tbl" array
- */
-static unsigned int
-c2v (unsigned char a)
-{
- if ((a >= '0') && (a <= '9'))
- return a - '0';
- if ((a >= 'A') && (a <= 'Z'))
- return (a - 'A' + 10);
- if ((a >= 'a') && (a <= 'z'))
- return (a - 'a' + 36);
- if (a == '_')
- return 62;
- if (a == '=')
- return 63;
- return -1;
-}
-
-
-/**
- * Convert string back to binary data.
- *
- * @param input '\0'-terminated string
- * @param data where to write binary data
- * @param size how much data should be converted
- * @return number of characters processed from input,
- * -1 on error
- */
-static int
-enc2bin (const char *input, void *data, size_t size)
-{
- size_t len;
- size_t pos;
- unsigned int bits;
- unsigned int hbits;
-
- len = size * 8 / 6;
- if (((size * 8) % 6) != 0)
- len++;
- if (strlen (input) < len)
- return -1; /* error! */
- bits = 0;
- hbits = 0;
- len = 0;
- pos = 0;
- for (pos = 0; pos < size; pos++)
- {
- while (hbits < 8)
- {
- bits |= (c2v (input[len++]) << hbits);
- hbits += 6;
- }
- (((unsigned char *) data)[pos]) = (unsigned char) bits;
- bits >>= 8;
- hbits -= 8;
- }
- return len;
-}
-
-
-/**
- * Structure that defines how the
- * contents of a location URI must be
- * assembled in memory to create or
- * verify the signature of a location
+ * Structure that defines how the contents of a location URI must be
+ * assembled in memory to create or verify the signature of a location
* URI.
*/
-struct LocUriAssembly
+struct LocUriAssembly
{
- struct GNUNET_CRYPTO_RsaSignaturePurpose purpose;
+ /**
+ * What is being signed (rest of this struct).
+ */
+ struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+ /**
+ * Expiration time of the offer.
+ */
struct GNUNET_TIME_AbsoluteNBO exptime;
+ /**
+ * File being offered.
+ */
struct FileIdentifier fi;
-
- struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded peer;
+
+ /**
+ * Peer offering the file.
+ */
+ struct GNUNET_PeerIdentity peer;
};
+GNUNET_NETWORK_STRUCT_END
+
+#define GNUNET_FS_URI_LOC_PREFIX GNUNET_FS_URI_PREFIX GNUNET_FS_URI_LOC_INFIX
+
+#define SIGNATURE_ASCII_LENGTH 103
/**
* Parse a LOC URI.
* @return NULL on error, valid LOC URI otherwise
*/
static struct GNUNET_FS_Uri *
-uri_loc_parse (const char *s, char **emsg)
+uri_loc_parse (const char *s,
+ char **emsg)
{
struct GNUNET_FS_Uri *uri;
- char h1[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)];
- char h2[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ char h1[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)];
+ char h2[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)];
unsigned int pos;
unsigned int npos;
unsigned long long exptime;
+ unsigned long long flen;
struct GNUNET_TIME_Absolute et;
- struct GNUNET_CRYPTO_RsaSignature sig;
+ struct GNUNET_CRYPTO_EddsaSignature sig;
struct LocUriAssembly ass;
- int ret;
size_t slen;
- char *addr;
- GNUNET_assert (s != NULL);
slen = strlen (s);
- pos = strlen (GNUNET_FS_URI_PREFIX GNUNET_FS_URI_LOC_INFIX);
- if ( (slen < pos + 2 * sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1) ||
- (0 != strncmp (s, GNUNET_FS_URI_PREFIX GNUNET_FS_URI_LOC_INFIX,
- pos) ) ||
- (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] != '.') ||
- (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2 - 1] != '.') )
+ pos = strlen (GNUNET_FS_URI_LOC_PREFIX);
+ if ((slen < pos + 2 * sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1) ||
+ (0 != strncmp (s, GNUNET_FS_URI_LOC_PREFIX, pos)))
+ return NULL; /* not a LOC URI */
+ if ((s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] != '.') ||
+ (s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2 - 1] != '.'))
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (wrong syntax)"));
return NULL;
-
- memcpy (h1,
- &s[pos],
- sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded));
- h1[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)-1] = '\0';
- memcpy (h2,
- &s[pos + sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)],
- sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded));
- h2[sizeof(struct GNUNET_CRYPTO_HashAsciiEncoded)-1] = '\0';
-
- if ((GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h1,
- &ass.fi.chk.key)) ||
- (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h2,
- &ass.fi.chk.query)) ||
- (1 != SSCANF (&s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2],
- "%llu",
- &ass.fi.file_length)) )
+ }
+ memcpy (h1, &s[pos], sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded));
+ h1[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] = '\0';
+ memcpy (h2, &s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded)],
+ sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded));
+ h2[sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) - 1] = '\0';
+
+ if ((GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h1, &ass.fi.chk.key)) ||
+ (GNUNET_OK != GNUNET_CRYPTO_hash_from_string (h2, &ass.fi.chk.query)) ||
+ (1 !=
+ SSCANF (&s[pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2],
+ "%llu", &flen)))
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (no CHK)"));
return NULL;
- ass.fi.file_length = GNUNET_htonll (ass.fi.file_length);
+ }
+ ass.fi.file_length = GNUNET_htonll (flen);
npos = pos + sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) * 2;
while ((s[npos] != '\0') && (s[npos] != '.'))
npos++;
if (s[npos] == '\0')
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (missing LOC)"));
goto ERR;
- ret = enc2bin (&s[npos],
- &ass.peer,
- sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
- if (ret == -1)
+ }
+ npos++;
+ if ( (strlen (&s[npos]) <= GNUNET_CRYPTO_PKEY_ASCII_LENGTH + 1) ||
+ ('.' != s[npos+GNUNET_CRYPTO_PKEY_ASCII_LENGTH]) )
+ {
+ *emsg =
+ GNUNET_strdup (_("LOC URI malformed (wrong syntax for public key)"));
+ }
+ if (GNUNET_OK !=
+ GNUNET_CRYPTO_eddsa_public_key_from_string (&s[npos],
+ GNUNET_CRYPTO_PKEY_ASCII_LENGTH,
+ &ass.peer.public_key))
+ {
+ *emsg =
+ GNUNET_strdup (_("LOC URI malformed (could not decode public key)"));
goto ERR;
- npos += ret;
+ }
+ npos += GNUNET_CRYPTO_PKEY_ASCII_LENGTH;
if (s[npos++] != '.')
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (could not find signature)"));
+ goto ERR;
+ }
+ if ( (strlen (&s[npos]) <= SIGNATURE_ASCII_LENGTH + 1) ||
+ ('.' != s[npos + SIGNATURE_ASCII_LENGTH]) )
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (wrong syntax for signature)"));
goto ERR;
- ret = enc2bin (&s[npos],
- &sig,
- sizeof (struct GNUNET_CRYPTO_RsaSignature));
- if (ret == -1)
+ }
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_string_to_data (&s[npos],
+ SIGNATURE_ASCII_LENGTH,
+ &sig,
+ sizeof (struct GNUNET_CRYPTO_EddsaSignature)))
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (could not decode signature)"));
goto ERR;
- npos += ret;
+ }
+ npos += SIGNATURE_ASCII_LENGTH;
if (s[npos++] != '.')
+ {
+ *emsg = GNUNET_strdup (_("LOC URI malformed (wrong syntax for expiration time)"));
goto ERR;
+ }
if (1 != SSCANF (&s[npos], "%llu", &exptime))
+ {
+ *emsg =
+ GNUNET_strdup (_("LOC URI malformed (could not parse expiration time)"));
goto ERR;
- ass.purpose.size = htonl(sizeof(struct LocUriAssembly));
- ass.purpose.purpose = htonl(GNUNET_SIGNATURE_PURPOSE_NAMESPACE_PLACEMENT);
- et.value = exptime;
+ }
+ ass.purpose.size = htonl (sizeof (struct LocUriAssembly));
+ ass.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT);
+ et.abs_value_us = exptime * 1000LL * 1000LL;
ass.exptime = GNUNET_TIME_absolute_hton (et);
- if (GNUNET_OK !=
- GNUNET_CRYPTO_rsa_verify (GNUNET_SIGNATURE_PURPOSE_NAMESPACE_PLACEMENT,
- &ass.purpose,
- &sig,
- &ass.peer))
+ if (GNUNET_OK !=
+ GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT,
+ &ass.purpose, &sig, &ass.peer.public_key))
+ {
+ *emsg =
+ GNUNET_strdup (_("LOC URI malformed (signature failed validation)"));
goto ERR;
-
- uri = GNUNET_malloc (sizeof(struct GNUNET_FS_Uri));
- uri->type = loc;
+ }
+ uri = GNUNET_new (struct GNUNET_FS_Uri);
+ uri->type = GNUNET_FS_URI_LOC;
uri->data.loc.fi = ass.fi;
uri->data.loc.peer = ass.peer;
uri->data.loc.expirationTime = et;
return uri;
ERR:
- GNUNET_free_non_null (addr);
return NULL;
}
*/
struct GNUNET_FS_Uri *
GNUNET_FS_uri_parse (const char *uri,
- char **emsg)
+ char **emsg)
{
struct GNUNET_FS_Uri *ret;
-
- if ( (NULL != (ret = uri_chk_parse (uri, emsg))) ||
- (NULL != (ret = uri_ksk_parse (uri, emsg))) ||
- (NULL != (ret = uri_sks_parse (uri, emsg))) ||
- (NULL != (ret = uri_loc_parse (uri, emsg))) )
+ char *msg;
+
+ if (NULL == emsg)
+ emsg = &msg;
+ *emsg = NULL;
+ if ((NULL != (ret = uri_chk_parse (uri, emsg))) ||
+ (NULL != (ret = uri_ksk_parse (uri, emsg))) ||
+ (NULL != (ret = uri_sks_parse (uri, emsg))) ||
+ (NULL != (ret = uri_loc_parse (uri, emsg))))
return ret;
+ if (NULL == *emsg)
+ *emsg = GNUNET_strdup (_("Unrecognized URI type"));
+ if (emsg == &msg)
+ GNUNET_free (msg);
return NULL;
}
*
* @param uri uri to free
*/
-void
+void
GNUNET_FS_uri_destroy (struct GNUNET_FS_Uri *uri)
{
unsigned int i;
- GNUNET_assert (uri != NULL);
switch (uri->type)
- {
- case ksk:
- for (i = 0; i < uri->data.ksk.keywordCount; i++)
- GNUNET_free (uri->data.ksk.keywords[i]);
- GNUNET_array_grow (uri->data.ksk.keywords, uri->data.ksk.keywordCount,
- 0);
- break;
- case sks:
- GNUNET_free (uri->data.sks.identifier);
- break;
- case loc:
- break;
- default:
- /* do nothing */
- break;
- }
+ {
+ case GNUNET_FS_URI_KSK:
+ for (i = 0; i < uri->data.ksk.keywordCount; i++)
+ GNUNET_free (uri->data.ksk.keywords[i]);
+ GNUNET_array_grow (uri->data.ksk.keywords, uri->data.ksk.keywordCount, 0);
+ break;
+ case GNUNET_FS_URI_SKS:
+ GNUNET_free (uri->data.sks.identifier);
+ break;
+ case GNUNET_FS_URI_LOC:
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
GNUNET_free (uri);
}
+
/**
* How many keywords are ANDed in this keyword URI?
*
* @param uri ksk uri to get the number of keywords from
* @return 0 if this is not a keyword URI
*/
-unsigned int
+unsigned int
GNUNET_FS_uri_ksk_get_keyword_count (const struct GNUNET_FS_Uri *uri)
{
- if (uri->type != ksk)
+ if (uri->type != GNUNET_FS_URI_KSK)
return 0;
return uri->data.ksk.keywordCount;
}
* @return -1 if this is not a keyword URI, otherwise number of
* keywords iterated over until iterator aborted
*/
-int
+int
GNUNET_FS_uri_ksk_get_keywords (const struct GNUNET_FS_Uri *uri,
- GNUNET_FS_KeywordIterator iterator,
- void *iterator_cls)
+ GNUNET_FS_KeywordIterator iterator,
+ void *iterator_cls)
{
unsigned int i;
char *keyword;
- if (uri->type != ksk)
+ if (uri->type != GNUNET_FS_URI_KSK)
return -1;
- if (iterator == NULL)
+ if (NULL == iterator)
return uri->data.ksk.keywordCount;
for (i = 0; i < uri->data.ksk.keywordCount; i++)
+ {
+ keyword = uri->data.ksk.keywords[i];
+ /* first character of keyword indicates
+ * if it is mandatory or not */
+ if (GNUNET_OK != iterator (iterator_cls, &keyword[1], keyword[0] == '+'))
+ return i;
+ }
+ return i;
+}
+
+
+/**
+ * Add the given keyword to the set of keywords represented by the URI.
+ * Does nothing if the keyword is already present.
+ *
+ * @param uri ksk uri to modify
+ * @param keyword keyword to add
+ * @param is_mandatory is this keyword mandatory?
+ */
+void
+GNUNET_FS_uri_ksk_add_keyword (struct GNUNET_FS_Uri *uri,
+ const char *keyword,
+ int is_mandatory)
+{
+ unsigned int i;
+ const char *old;
+ char *n;
+
+ GNUNET_assert (uri->type == GNUNET_FS_URI_KSK);
+ for (i = 0; i < uri->data.ksk.keywordCount; i++)
+ {
+ old = uri->data.ksk.keywords[i];
+ if (0 == strcmp (&old[1], keyword))
+ return;
+ }
+ GNUNET_asprintf (&n, is_mandatory ? "+%s" : " %s", keyword);
+ GNUNET_array_append (uri->data.ksk.keywords, uri->data.ksk.keywordCount, n);
+}
+
+
+/**
+ * Remove the given keyword from the set of keywords represented by the URI.
+ * Does nothing if the keyword is not present.
+ *
+ * @param uri ksk uri to modify
+ * @param keyword keyword to add
+ */
+void
+GNUNET_FS_uri_ksk_remove_keyword (struct GNUNET_FS_Uri *uri,
+ const char *keyword)
+{
+ unsigned int i;
+ char *old;
+
+ GNUNET_assert (uri->type == GNUNET_FS_URI_KSK);
+ for (i = 0; i < uri->data.ksk.keywordCount; i++)
+ {
+ old = uri->data.ksk.keywords[i];
+ if (0 == strcmp (&old[1], keyword))
{
- keyword = uri->data.ksk.keywords[i];
- /* first character of keyword indicates
- if it is mandatory or not */
- if (GNUNET_OK != iterator (iterator_cls,
- &keyword[1],
- keyword[0] == '+'))
- return i;
+ uri->data.ksk.keywords[i] =
+ uri->data.ksk.keywords[uri->data.ksk.keywordCount - 1];
+ GNUNET_array_grow (uri->data.ksk.keywords, uri->data.ksk.keywordCount,
+ uri->data.ksk.keywordCount - 1);
+ GNUNET_free (old);
+ return;
}
- return i;
+ }
}
*
* @param uri the location URI to inspect
* @param peer where to store the identify of the peer (presumably) offering the content
- * @return GNUNET_SYSERR if this is not a location URI, otherwise GNUNET_OK
+ * @return #GNUNET_SYSERR if this is not a location URI, otherwise #GNUNET_OK
*/
int
GNUNET_FS_uri_loc_get_peer_identity (const struct GNUNET_FS_Uri *uri,
- struct GNUNET_PeerIdentity * peer)
+ struct GNUNET_PeerIdentity *peer)
{
- if (uri->type != loc)
+ if (uri->type != GNUNET_FS_URI_LOC)
return GNUNET_SYSERR;
- GNUNET_CRYPTO_hash (&uri->data.loc.peer,
- sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
- &peer->hashPubKey);
+ *peer = uri->data.loc.peer;
return GNUNET_OK;
}
+/**
+ * Obtain the expiration of the LOC URI.
+ *
+ * @param uri location URI to get the expiration from
+ * @return expiration time of the URI
+ */
+struct GNUNET_TIME_Absolute
+GNUNET_FS_uri_loc_get_expiration (const struct GNUNET_FS_Uri *uri)
+{
+ GNUNET_assert (uri->type == GNUNET_FS_URI_LOC);
+ return uri->data.loc.expirationTime;
+}
+
+
/**
* Obtain the URI of the content itself.
*
{
struct GNUNET_FS_Uri *ret;
- if (uri->type != loc)
+ if (uri->type != GNUNET_FS_URI_LOC)
return NULL;
- ret = GNUNET_malloc (sizeof (struct GNUNET_FS_Uri));
- ret->type = chk;
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_CHK;
ret->data.chk = uri->data.loc.fi;
return ret;
}
/**
* Construct a location URI (this peer will be used for the location).
*
- * @param baseURI content offered by the sender
+ * @param baseUri content offered by the sender
* @param cfg configuration information (used to find our hostkey)
* @param expiration_time how long will the content be offered?
* @return the location URI, NULL on error
*/
struct GNUNET_FS_Uri *
GNUNET_FS_uri_loc_create (const struct GNUNET_FS_Uri *baseUri,
- struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TIME_Absolute expiration_time);
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_TIME_Absolute expiration_time)
+{
+ struct GNUNET_FS_Uri *uri;
+ struct GNUNET_CRYPTO_EddsaPrivateKey *my_private_key;
+ struct GNUNET_CRYPTO_EddsaPublicKey my_public_key;
+ char *keyfile;
+ struct LocUriAssembly ass;
+ struct GNUNET_TIME_Absolute et;
+
+ if (baseUri->type != GNUNET_FS_URI_CHK)
+ return NULL;
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_filename (cfg, "PEER", "PRIVATE_KEY",
+ &keyfile))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Lacking key configuration settings.\n"));
+ return NULL;
+ }
+ if (NULL == (my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_file (keyfile)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Could not access hostkey file `%s'.\n"), keyfile);
+ GNUNET_free (keyfile);
+ return NULL;
+ }
+ GNUNET_free (keyfile);
+ /* we round expiration time to full seconds for SKS URIs */
+ et.abs_value_us = (expiration_time.abs_value_us / 1000000LL) * 1000000LL;
+ GNUNET_CRYPTO_eddsa_key_get_public (my_private_key, &my_public_key);
+ ass.purpose.size = htonl (sizeof (struct LocUriAssembly));
+ ass.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT);
+ ass.exptime = GNUNET_TIME_absolute_hton (et);
+ ass.fi = baseUri->data.chk;
+ ass.peer.public_key = my_public_key;
+ uri = GNUNET_new (struct GNUNET_FS_Uri);
+ uri->type = GNUNET_FS_URI_LOC;
+ uri->data.loc.fi = baseUri->data.chk;
+ uri->data.loc.expirationTime = et;
+ uri->data.loc.peer.public_key = my_public_key;
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CRYPTO_eddsa_sign (my_private_key, &ass.purpose,
+ &uri->data.loc.contentSignature));
+ GNUNET_free (my_private_key);
+ return uri;
+}
/**
- * Canonicalize keyword URI. Performs operations such
- * as decapitalization and removal of certain characters.
- * (useful for search).
+ * Create an SKS URI from a namespace ID and an identifier.
*
- * @param uri the URI to canonicalize
- * @return canonicalized version of the URI, NULL on error
+ * @param ns namespace ID
+ * @param id identifier
+ * @return an FS URI for the given namespace and identifier
*/
struct GNUNET_FS_Uri *
-GNUNET_FS_uri_ksk_canonicalize (const struct GNUNET_FS_Uri *uri)
+GNUNET_FS_uri_sks_create (const struct GNUNET_CRYPTO_EcdsaPublicKey *ns,
+ const char *id)
{
- /* FIXME: not implemented */
- return NULL;
+ struct GNUNET_FS_Uri *ns_uri;
+
+ ns_uri = GNUNET_new (struct GNUNET_FS_Uri);
+ ns_uri->type = GNUNET_FS_URI_SKS;
+ ns_uri->data.sks.ns = *ns;
+ ns_uri->data.sks.identifier = GNUNET_strdup (id);
+ return ns_uri;
}
*/
struct GNUNET_FS_Uri *
GNUNET_FS_uri_ksk_merge (const struct GNUNET_FS_Uri *u1,
- const struct GNUNET_FS_Uri *u2)
+ const struct GNUNET_FS_Uri *u2)
{
- /* FIXME */
- return NULL;
+ struct GNUNET_FS_Uri *ret;
+ unsigned int kc;
+ unsigned int i;
+ unsigned int j;
+ int found;
+ const char *kp;
+ char **kl;
+
+ if ((u1 == NULL) && (u2 == NULL))
+ return NULL;
+ if (u1 == NULL)
+ return GNUNET_FS_uri_dup (u2);
+ if (u2 == NULL)
+ return GNUNET_FS_uri_dup (u1);
+ if ((u1->type != GNUNET_FS_URI_KSK) || (u2->type != GNUNET_FS_URI_KSK))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ kc = u1->data.ksk.keywordCount;
+ kl = GNUNET_malloc ((kc + u2->data.ksk.keywordCount) * sizeof (char *));
+ for (i = 0; i < u1->data.ksk.keywordCount; i++)
+ kl[i] = GNUNET_strdup (u1->data.ksk.keywords[i]);
+ for (i = 0; i < u2->data.ksk.keywordCount; i++)
+ {
+ kp = u2->data.ksk.keywords[i];
+ found = 0;
+ for (j = 0; j < u1->data.ksk.keywordCount; j++)
+ if (0 == strcmp (kp + 1, kl[j] + 1))
+ {
+ found = 1;
+ if (kp[0] == '+')
+ kl[j][0] = '+';
+ break;
+ }
+ if (0 == found)
+ kl[kc++] = GNUNET_strdup (kp);
+ }
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_KSK;
+ ret->data.ksk.keywordCount = kc;
+ ret->data.ksk.keywords = kl;
+ return ret;
}
struct GNUNET_FS_Uri *ret;
unsigned int i;
- ret = GNUNET_malloc (sizeof (struct GNUNET_FS_Uri));
+ if (uri == NULL)
+ return NULL;
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
memcpy (ret, uri, sizeof (struct GNUNET_FS_Uri));
switch (ret->type)
+ {
+ case GNUNET_FS_URI_KSK:
+ if (ret->data.ksk.keywordCount >=
+ GNUNET_MAX_MALLOC_CHECKED / sizeof (char *))
{
- case ksk:
- if (ret->data.ksk.keywordCount > 0)
- {
- ret->data.ksk.keywords
- = GNUNET_malloc (ret->data.ksk.keywordCount * sizeof (char *));
- for (i = 0; i < ret->data.ksk.keywordCount; i++)
- ret->data.ksk.keywords[i] =
- GNUNET_strdup (uri->data.ksk.keywords[i]);
- }
- else
- ret->data.ksk.keywords = NULL; /* just to be sure */
- break;
- case sks:
- ret->data.sks.identifier = GNUNET_strdup (uri->data.sks.identifier);
- break;
- case loc:
- break;
- default:
- break;
+ GNUNET_break (0);
+ GNUNET_free (ret);
+ return NULL;
+ }
+ if (ret->data.ksk.keywordCount > 0)
+ {
+ ret->data.ksk.keywords =
+ GNUNET_malloc (ret->data.ksk.keywordCount * sizeof (char *));
+ for (i = 0; i < ret->data.ksk.keywordCount; i++)
+ ret->data.ksk.keywords[i] = GNUNET_strdup (uri->data.ksk.keywords[i]);
}
+ else
+ ret->data.ksk.keywords = NULL; /* just to be sure */
+ break;
+ case GNUNET_FS_URI_SKS:
+ ret->data.sks.identifier = GNUNET_strdup (uri->data.sks.identifier);
+ break;
+ case GNUNET_FS_URI_LOC:
+ break;
+ default:
+ break;
+ }
return ret;
}
* "OR"ed keywords 'foo' and 'bar', not into '"foo bar"'.
*
* @param keywords the keyword string
+ * @param emsg where to store an error message
* @return an FS URI for the given keywords, NULL
* if keywords is not legal (i.e. empty).
*/
struct GNUNET_FS_Uri *
-GNUNET_FS_uri_ksk_create (const char *keywords)
+GNUNET_FS_uri_ksk_create (const char *keywords,
+ char **emsg)
{
- /* FIXME */
- return NULL;
+ char **keywordarr;
+ unsigned int num_Words;
+ int inWord;
+ char *pos;
+ struct GNUNET_FS_Uri *uri;
+ char *searchString;
+ int saw_quote;
+
+ if (keywords == NULL)
+ {
+ *emsg = GNUNET_strdup (_("No keywords specified!\n"));
+ GNUNET_break (0);
+ return NULL;
+ }
+ searchString = GNUNET_strdup (keywords);
+ num_Words = 0;
+ inWord = 0;
+ saw_quote = 0;
+ pos = searchString;
+ while ('\0' != *pos)
+ {
+ if ((saw_quote == 0) && (isspace ((unsigned char) *pos)))
+ {
+ inWord = 0;
+ }
+ else if (0 == inWord)
+ {
+ inWord = 1;
+ ++num_Words;
+ }
+ if ('"' == *pos)
+ saw_quote = (saw_quote + 1) % 2;
+ pos++;
+ }
+ if (num_Words == 0)
+ {
+ GNUNET_free (searchString);
+ *emsg = GNUNET_strdup (_("No keywords specified!\n"));
+ return NULL;
+ }
+ if (saw_quote != 0)
+ {
+ GNUNET_free (searchString);
+ *emsg = GNUNET_strdup (_("Number of double-quotes not balanced!\n"));
+ return NULL;
+ }
+ keywordarr = GNUNET_malloc (num_Words * sizeof (char *));
+ num_Words = 0;
+ inWord = 0;
+ pos = searchString;
+ while ('\0' != *pos)
+ {
+ if ((saw_quote == 0) && (isspace ((unsigned char) *pos)))
+ {
+ inWord = 0;
+ *pos = '\0';
+ }
+ else if (0 == inWord)
+ {
+ keywordarr[num_Words] = pos;
+ inWord = 1;
+ ++num_Words;
+ }
+ if ('"' == *pos)
+ saw_quote = (saw_quote + 1) % 2;
+ pos++;
+ }
+ uri =
+ GNUNET_FS_uri_ksk_create_from_args (num_Words,
+ (const char **) keywordarr);
+ GNUNET_free (keywordarr);
+ GNUNET_free (searchString);
+ return uri;
}
*/
struct GNUNET_FS_Uri *
GNUNET_FS_uri_ksk_create_from_args (unsigned int argc,
- const char **argv)
+ const char **argv)
{
- /* FIXME */
- return NULL;
+ unsigned int i;
+ struct GNUNET_FS_Uri *uri;
+ const char *keyword;
+ char *val;
+ const char *r;
+ char *w;
+ char *emsg;
+
+ if (argc == 0)
+ return NULL;
+ /* allow URI to be given as one and only keyword and
+ * handle accordingly */
+ emsg = NULL;
+ if ((argc == 1) && (strlen (argv[0]) > strlen (GNUNET_FS_URI_PREFIX)) &&
+ (0 ==
+ strncmp (argv[0], GNUNET_FS_URI_PREFIX, strlen (GNUNET_FS_URI_PREFIX)))
+ && (NULL != (uri = GNUNET_FS_uri_parse (argv[0], &emsg))))
+ return uri;
+ GNUNET_free_non_null (emsg);
+ uri = GNUNET_new (struct GNUNET_FS_Uri);
+ uri->type = GNUNET_FS_URI_KSK;
+ uri->data.ksk.keywordCount = argc;
+ uri->data.ksk.keywords = GNUNET_malloc (argc * sizeof (char *));
+ for (i = 0; i < argc; i++)
+ {
+ keyword = argv[i];
+ if (keyword[0] == '+')
+ val = GNUNET_strdup (keyword);
+ else
+ GNUNET_asprintf (&val, " %s", keyword);
+ r = val;
+ w = val;
+ while ('\0' != *r)
+ {
+ if ('"' == *r)
+ r++;
+ else
+ *(w++) = *(r++);
+ }
+ *w = '\0';
+ uri->data.ksk.keywords[i] = val;
+ }
+ return uri;
}
*
* @param u1 one of the URIs
* @param u2 the other URI
- * @return GNUNET_YES if the URIs are equal
+ * @return #GNUNET_YES if the URIs are equal
*/
-int
+int
GNUNET_FS_uri_test_equal (const struct GNUNET_FS_Uri *u1,
- const struct GNUNET_FS_Uri *u2)
+ const struct GNUNET_FS_Uri *u2)
{
int ret;
unsigned int i;
if (u1->type != u2->type)
return GNUNET_NO;
switch (u1->type)
- {
- case chk:
- if (0 == memcmp (&u1->data.chk,
- &u2->data.chk,
- sizeof (struct FileIdentifier)))
- return GNUNET_YES;
- return GNUNET_NO;
- case sks:
- if ((0 == memcmp (&u1->data.sks.namespace,
- &u2->data.sks.namespace,
- sizeof (GNUNET_HashCode))) &&
- (0 == strcmp (u1->data.sks.identifier,
- u2->data.sks.identifier)))
-
- return GNUNET_YES;
+ {
+ case GNUNET_FS_URI_CHK:
+ if (0 ==
+ memcmp (&u1->data.chk, &u2->data.chk, sizeof (struct FileIdentifier)))
+ return GNUNET_YES;
+ return GNUNET_NO;
+ case GNUNET_FS_URI_SKS:
+ if ((0 ==
+ memcmp (&u1->data.sks.ns, &u2->data.sks.ns,
+ sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey))) &&
+ (0 == strcmp (u1->data.sks.identifier, u2->data.sks.identifier)))
+
+ return GNUNET_YES;
+ return GNUNET_NO;
+ case GNUNET_FS_URI_KSK:
+ if (u1->data.ksk.keywordCount != u2->data.ksk.keywordCount)
return GNUNET_NO;
- case ksk:
- if (u1->data.ksk.keywordCount != u2->data.ksk.keywordCount)
- return GNUNET_NO;
- for (i = 0; i < u1->data.ksk.keywordCount; i++)
+ for (i = 0; i < u1->data.ksk.keywordCount; i++)
+ {
+ ret = GNUNET_NO;
+ for (j = 0; j < u2->data.ksk.keywordCount; j++)
+ {
+ if (0 == strcmp (u1->data.ksk.keywords[i], u2->data.ksk.keywords[j]))
{
- ret = GNUNET_NO;
- for (j = 0; j < u2->data.ksk.keywordCount; j++)
- {
- if (0 == strcmp (u1->data.ksk.keywords[i],
- u2->data.ksk.keywords[j]))
- {
- ret = GNUNET_YES;
- break;
- }
- }
- if (ret == GNUNET_NO)
- return GNUNET_NO;
+ ret = GNUNET_YES;
+ break;
}
- return GNUNET_YES;
- case loc:
- if (memcmp (&u1->data.loc,
- &u2->data.loc,
- sizeof (struct FileIdentifier) +
- sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
- sizeof (struct GNUNET_TIME_Absolute) +
- sizeof (unsigned short) + sizeof (unsigned short)) != 0)
+ }
+ if (ret == GNUNET_NO)
return GNUNET_NO;
- return GNUNET_YES;
- default:
- return GNUNET_NO;
}
+ return GNUNET_YES;
+ case GNUNET_FS_URI_LOC:
+ if (memcmp
+ (&u1->data.loc, &u2->data.loc,
+ sizeof (struct FileIdentifier) +
+ sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey) +
+ sizeof (struct GNUNET_TIME_Absolute) + sizeof (unsigned short) +
+ sizeof (unsigned short)) != 0)
+ return GNUNET_NO;
+ return GNUNET_YES;
+ default:
+ return GNUNET_NO;
+ }
}
* Is this a namespace URI?
*
* @param uri the uri to check
- * @return GNUNET_YES if this is an SKS uri
+ * @return #GNUNET_YES if this is an SKS uri
*/
int
GNUNET_FS_uri_test_sks (const struct GNUNET_FS_Uri *uri)
{
- return uri->type == sks;
+ return uri->type == GNUNET_FS_URI_SKS;
}
* namespace URI.
*
* @param uri the uri to get the namespace ID from
- * @param nsid where to store the ID of the namespace
- * @return GNUNET_OK on success
+ * @param pseudonym where to store the ID of the namespace
+ * @return #GNUNET_OK on success
*/
-int
+int
GNUNET_FS_uri_sks_get_namespace (const struct GNUNET_FS_Uri *uri,
- GNUNET_HashCode * nsid)
+ struct GNUNET_CRYPTO_EcdsaPublicKey *pseudonym)
{
- if (! GNUNET_FS_uri_test_sks (uri))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- *nsid = uri->data.sks.namespace;
+ if (!GNUNET_FS_uri_test_sks (uri))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ *pseudonym = uri->data.sks.ns;
return GNUNET_OK;
}
GNUNET_FS_uri_sks_get_content_id (const struct GNUNET_FS_Uri *uri)
{
if (!GNUNET_FS_uri_test_sks (uri))
- {
- GNUNET_break (0);
- return NULL;
- }
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
return GNUNET_strdup (uri->data.sks.identifier);
}
-/**
- * Convert namespace URI to a human readable format
- * (using the namespace description, if available).
- *
- * @param cfg configuration to use
- * @param uri SKS uri to convert
- * @return NULL on error (not an SKS URI)
- */
-char *
-GNUNET_FS_uri_sks_to_string_fancy (struct GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_FS_Uri *uri)
-{
- /* FIXME */
- return NULL;
-}
-
-
/**
* Is this a keyword URI?
*
* @param uri the uri
- * @return GNUNET_YES if this is a KSK uri
+ * @return #GNUNET_YES if this is a KSK uri
*/
-int
+int
GNUNET_FS_uri_test_ksk (const struct GNUNET_FS_Uri *uri)
{
#if EXTRA_CHECKS
unsigned int i;
- if (uri->type == ksk)
- {
- for (i = uri->data.ksk.keywordCount - 1; i >= 0; i--)
- GNUNET_assert (uri->data.ksk.keywords[i] != NULL);
- }
+ if (uri->type == GNUNET_FS_URI_KSK)
+ {
+ for (i=0;i < uri->data.ksk.keywordCount; i++)
+ GNUNET_assert (uri->data.ksk.keywords[i] != NULL);
+ }
#endif
- return uri->type == ksk;
+ return uri->type == GNUNET_FS_URI_KSK;
}
* Is this a file (or directory) URI?
*
* @param uri the uri to check
- * @return GNUNET_YES if this is a CHK uri
+ * @return #GNUNET_YES if this is a CHK uri
*/
-int
+int
GNUNET_FS_uri_test_chk (const struct GNUNET_FS_Uri *uri)
{
- return uri->type == chk;
+ return uri->type == GNUNET_FS_URI_CHK;
}
* @param uri the CHK URI to inspect
* @return size of the file as specified in the CHK URI
*/
-uint64_t
-GNUNET_FS_uri_chk_get_file_size (const struct GNUNET_FS_Uri *uri)
+uint64_t
+GNUNET_FS_uri_chk_get_file_size (const struct GNUNET_FS_Uri * uri)
{
switch (uri->type)
- {
- case chk:
- return GNUNET_ntohll (uri->data.chk.file_length);
- case loc:
- return GNUNET_ntohll (uri->data.loc.fi.file_length);
- default:
- GNUNET_assert (0);
- }
+ {
+ case GNUNET_FS_URI_CHK:
+ return GNUNET_ntohll (uri->data.chk.file_length);
+ case GNUNET_FS_URI_LOC:
+ return GNUNET_ntohll (uri->data.loc.fi.file_length);
+ default:
+ GNUNET_assert (0);
+ }
return 0; /* unreachable */
}
* Is this a location URI?
*
* @param uri the uri to check
- * @return GNUNET_YES if this is a LOC uri
+ * @return #GNUNET_YES if this is a LOC uri
*/
-int
+int
GNUNET_FS_uri_test_loc (const struct GNUNET_FS_Uri *uri)
{
- return uri->type == loc;
+ return uri->type == GNUNET_FS_URI_LOC;
+}
+
+
+/**
+ * Add a keyword as non-mandatory (with ' '-prefix) to the
+ * given keyword list at offset 'index'. The array is
+ * guaranteed to be long enough.
+ *
+ * @param s keyword to add
+ * @param array array to add the keyword to
+ * @param index offset where to add the keyword
+ */
+static void
+insert_non_mandatory_keyword (const char *s,
+ char **array,
+ int index)
+{
+ char *nkword;
+
+ GNUNET_asprintf (&nkword,
+ " %s", /* space to mark as 'non mandatory' */
+ s);
+ array[index] = nkword;
+}
+
+
+/**
+ * Test if the given keyword @a s is already present in the
+ * given array, ignoring the '+'-mandatory prefix in the array.
+ *
+ * @param s keyword to test
+ * @param array keywords to test against, with ' ' or '+' prefix to ignore
+ * @param array_length length of the @a array
+ * @return #GNUNET_YES if the keyword exists, #GNUNET_NO if not
+ */
+static int
+find_duplicate (const char *s,
+ const char **array,
+ int array_length)
+{
+ int j;
+
+ for (j = array_length - 1; j >= 0; j--)
+ if (0 == strcmp (&array[j][1], s))
+ return GNUNET_YES;
+ return GNUNET_NO;
+}
+
+
+/**
+ * FIXME: comment
+ */
+static char *
+normalize_metadata (enum EXTRACTOR_MetaFormat format,
+ const char *data,
+ size_t data_len)
+{
+ uint8_t *free_str = NULL;
+ uint8_t *str_to_normalize = (uint8_t *) data;
+ uint8_t *normalized;
+ size_t r_len;
+ if (str_to_normalize == NULL)
+ return NULL;
+ /* Don't trust libextractor */
+ if (format == EXTRACTOR_METAFORMAT_UTF8)
+ {
+ free_str = (uint8_t *) u8_check ((const uint8_t *) data, data_len);
+ if (free_str == NULL)
+ free_str = NULL;
+ else
+ format = EXTRACTOR_METAFORMAT_C_STRING;
+ }
+ if (format == EXTRACTOR_METAFORMAT_C_STRING)
+ {
+ free_str = u8_strconv_from_encoding (data, locale_charset (), iconveh_escape_sequence);
+ if (free_str == NULL)
+ return NULL;
+ }
+
+ normalized = u8_tolower (str_to_normalize, strlen ((char *) str_to_normalize), NULL, UNINORM_NFD, NULL, &r_len);
+ /* free_str is allocated by libunistring internally, use free() */
+ if (free_str != NULL)
+ free (free_str);
+ if (normalized != NULL)
+ {
+ /* u8_tolower allocates a non-NULL-terminated string! */
+ free_str = GNUNET_malloc (r_len + 1);
+ memcpy (free_str, normalized, r_len);
+ free_str[r_len] = '\0';
+ free (normalized);
+ normalized = free_str;
+ }
+ return (char *) normalized;
+}
+
+
+/**
+ * Counts the number of UTF-8 characters (not bytes) in the string,
+ * returns that count.
+ */
+static size_t
+u8_strcount (const uint8_t *s)
+{
+ size_t count;
+ ucs4_t c;
+ GNUNET_assert (s != NULL);
+ if (s[0] == 0)
+ return 0;
+ for (count = 0; s != NULL; count++)
+ s = u8_next (&c, s);
+ return count - 1;
+}
+
+
+/**
+ * Break the filename up by matching [], () and {} pairs to make
+ * keywords. In case of nesting parentheses only the inner pair counts.
+ * You can't escape parentheses to scan something like "[blah\{foo]" to
+ * make a "blah{foo" keyword, this function is only a heuristic!
+ *
+ * @param s string to break down.
+ * @param array array to fill with enclosed tokens. If NULL, then tokens
+ * are only counted.
+ * @param index index at which to start filling the array (entries prior
+ * to it are used to check for duplicates). ignored if @a array == NULL.
+ * @return number of tokens counted (including duplicates), or number of
+ * tokens extracted (excluding duplicates). 0 if there are no
+ * matching parens in the string (when counting), or when all tokens
+ * were duplicates (when extracting).
+ */
+static int
+get_keywords_from_parens (const char *s,
+ char **array,
+ int index)
+{
+ int count = 0;
+ char *open_paren;
+ char *close_paren;
+ char *ss;
+ char tmp;
+
+ if (NULL == s)
+ return 0;
+ ss = GNUNET_strdup (s);
+ open_paren = ss - 1;
+ while (NULL != (open_paren = strpbrk (open_paren + 1, "[{(")))
+ {
+ int match = 0;
+
+ close_paren = strpbrk (open_paren + 1, "]})");
+ if (NULL == close_paren)
+ continue;
+ switch (open_paren[0])
+ {
+ case '[':
+ if (']' == close_paren[0])
+ match = 1;
+ break;
+ case '{':
+ if ('}' == close_paren[0])
+ match = 1;
+ break;
+ case '(':
+ if (')' == close_paren[0])
+ match = 1;
+ break;
+ default:
+ break;
+ }
+ if (match && (close_paren - open_paren > 1))
+ {
+ tmp = close_paren[0];
+ close_paren[0] = '\0';
+ /* Keywords must be at least 3 characters long */
+ if (u8_strcount ((const uint8_t *) &open_paren[1]) <= 2)
+ {
+ close_paren[0] = tmp;
+ continue;
+ }
+ if (NULL != array)
+ {
+ char *normalized;
+ if (GNUNET_NO == find_duplicate ((const char *) &open_paren[1],
+ (const char **) array, index + count))
+ {
+ insert_non_mandatory_keyword ((const char *) &open_paren[1], array,
+ index + count);
+ count++;
+ }
+ normalized = normalize_metadata (EXTRACTOR_METAFORMAT_UTF8,
+ &open_paren[1], close_paren - &open_paren[1]);
+ if (normalized != NULL)
+ {
+ if (GNUNET_NO == find_duplicate ((const char *) normalized,
+ (const char **) array, index + count))
+ {
+ insert_non_mandatory_keyword ((const char *) normalized, array,
+ index + count);
+ count++;
+ }
+ GNUNET_free (normalized);
+ }
+ }
+ else
+ count++;
+ close_paren[0] = tmp;
+ }
+ }
+ GNUNET_free (ss);
+ return count;
+}
+
+
+/**
+ * Where to break up keywords
+ */
+#define TOKENS "_. /-!?#&+@\"\'\\;:,()[]{}$<>|"
+
+/**
+ * Break the filename up by TOKENS to make
+ * keywords.
+ *
+ * @param s string to break down.
+ * @param array array to fill with tokens. If NULL, then tokens are only
+ * counted.
+ * @param index index at which to start filling the array (entries prior
+ * to it are used to check for duplicates). ignored if @a array == NULL.
+ * @return number of tokens (>1) counted (including duplicates), or number of
+ * tokens extracted (excluding duplicates). 0 if there are no
+ * separators in the string (when counting), or when all tokens were
+ * duplicates (when extracting).
+ */
+static int
+get_keywords_from_tokens (const char *s,
+ char **array,
+ int index)
+{
+ char *p;
+ char *ss;
+ int seps = 0;
+
+ ss = GNUNET_strdup (s);
+ for (p = strtok (ss, TOKENS); p != NULL; p = strtok (NULL, TOKENS))
+ {
+ /* Keywords must be at least 3 characters long */
+ if (u8_strcount ((const uint8_t *) p) <= 2)
+ continue;
+ if (NULL != array)
+ {
+ char *normalized;
+ if (GNUNET_NO == find_duplicate (p, (const char **) array, index + seps))
+ {
+ insert_non_mandatory_keyword (p, array,
+ index + seps);
+ seps++;
+ }
+ normalized = normalize_metadata (EXTRACTOR_METAFORMAT_UTF8,
+ p, strlen (p));
+ if (normalized != NULL)
+ {
+ if (GNUNET_NO == find_duplicate ((const char *) normalized,
+ (const char **) array, index + seps))
+ {
+ insert_non_mandatory_keyword ((const char *) normalized, array,
+ index + seps);
+ seps++;
+ }
+ GNUNET_free (normalized);
+ }
+ }
+ else
+ seps++;
+ }
+ GNUNET_free (ss);
+ return seps;
}
+#undef TOKENS
/**
* Adds it to the URI.
*
* @param cls URI to update
- * @param type type of the meta data
- * @param data value of the meta data
- * @return GNUNET_OK (always)
+ * @param plugin_name name of the plugin that produced this value;
+ * special values can be used (i.e. '<zlib>' for zlib being
+ * used in the main libextractor library and yielding
+ * meta data).
+ * @param type libextractor-type describing the meta data
+ * @param format basic format information about data
+ * @param data_mime_type mime-type of data (not of the original file);
+ * can be NULL (if mime-type is not known)
+ * @param data actual meta-data found
+ * @param data_len number of bytes in @a data
+ * @return 0 (always)
*/
static int
-gather_uri_data (void *cls,
- EXTRACTOR_KeywordType type,
- const char *data)
+gather_uri_data (void *cls, const char *plugin_name,
+ enum EXTRACTOR_MetaType type,
+ enum EXTRACTOR_MetaFormat format,
+ const char *data_mime_type,
+ const char *data,
+ size_t data_len)
{
struct GNUNET_FS_Uri *uri = cls;
- char *nkword;
- int j;
-
- for (j = uri->data.ksk.keywordCount - 1; j >= 0; j--)
- if (0 == strcmp (&uri->data.ksk.keywords[j][1], data))
- return GNUNET_OK;
- nkword = GNUNET_malloc (strlen (data) + 2);
- strcpy (nkword, " "); /* not mandatory */
- strcat (nkword, data);
- uri->data.ksk.keywords[uri->data.ksk.keywordCount++] = nkword;
- return GNUNET_OK;
+ char *normalized_data;
+ const char *sep;
+
+ if ((format != EXTRACTOR_METAFORMAT_UTF8) &&
+ (format != EXTRACTOR_METAFORMAT_C_STRING))
+ return 0;
+ /* Keywords must be at least 3 characters long
+ * If given non-utf8 string it will, most likely, find it to be invalid,
+ * and will return the length of its valid part, skipping the keyword.
+ * If it does - fix the extractor, not this check!
+ */
+ if (u8_strcount ((const uint8_t *) data) <= 2)
+ return 0;
+ if ( (EXTRACTOR_METATYPE_MIMETYPE == type) &&
+ (NULL != (sep = memchr (data, '/', data_len))) &&
+ (sep != data) )
+ {
+ char *xtra;
+
+ GNUNET_asprintf (&xtra,
+ "mimetype:%.*s",
+ (int) (sep - data),
+ data);
+ if (! find_duplicate (xtra,
+ (const char **) uri->data.ksk.keywords,
+ uri->data.ksk.keywordCount))
+ {
+ insert_non_mandatory_keyword (xtra,
+ uri->data.ksk.keywords,
+ uri->data.ksk.keywordCount);
+ uri->data.ksk.keywordCount++;
+ }
+ GNUNET_free (xtra);
+ }
+
+ normalized_data = normalize_metadata (format, data, data_len);
+ if (! find_duplicate (data,
+ (const char **) uri->data.ksk.keywords,
+ uri->data.ksk.keywordCount))
+ {
+ insert_non_mandatory_keyword (data,
+ uri->data.ksk.keywords, uri->data.ksk.keywordCount);
+ uri->data.ksk.keywordCount++;
+ }
+ if (NULL != normalized_data)
+ {
+ if (! find_duplicate (normalized_data,
+ (const char **) uri->data.ksk.keywords,
+ uri->data.ksk.keywordCount))
+ {
+ insert_non_mandatory_keyword (normalized_data,
+ uri->data.ksk.keywords, uri->data.ksk.keywordCount);
+ uri->data.ksk.keywordCount++;
+ }
+ GNUNET_free (normalized_data);
+ }
+ return 0;
}
* Construct a keyword-URI from meta-data (take all entries
* in the meta-data and construct one large keyword URI
* that lists all keywords that can be found in the meta-data).
- * @deprecated
+ *
+ * @param md metadata to use
+ * @return NULL on error, otherwise a KSK URI
*/
struct GNUNET_FS_Uri *
GNUNET_FS_uri_ksk_create_from_meta_data (const struct GNUNET_CONTAINER_MetaData *md)
{
struct GNUNET_FS_Uri *ret;
-
- if (md == NULL)
+ char *filename;
+ char *full_name = NULL;
+ char *ss;
+ int ent;
+ int tok_keywords = 0;
+ int paren_keywords = 0;
+
+ if (NULL == md)
return NULL;
- ret = GNUNET_malloc (sizeof (struct GNUNET_FS_Uri));
- ret->type = ksk;
- ret->data.ksk.keywordCount = 0;
- ret->data.ksk.keywords = NULL;
- ret->data.ksk.keywords
- = GNUNET_malloc (sizeof (char *) *
- GNUNET_CONTAINER_meta_data_get_contents (md, NULL, NULL));
- GNUNET_CONTAINER_meta_data_get_contents (md, &gather_uri_data, ret);
+ ret = GNUNET_new (struct GNUNET_FS_Uri);
+ ret->type = GNUNET_FS_URI_KSK;
+ ent = GNUNET_CONTAINER_meta_data_iterate (md, NULL, NULL);
+ if (ent > 0)
+ {
+ full_name = GNUNET_CONTAINER_meta_data_get_first_by_types (md,
+ EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME, -1);
+ if (NULL != full_name)
+ {
+ filename = full_name;
+ while (NULL != (ss = strstr (filename, DIR_SEPARATOR_STR)))
+ filename = ss + 1;
+ tok_keywords = get_keywords_from_tokens (filename, NULL, 0);
+ paren_keywords = get_keywords_from_parens (filename, NULL, 0);
+ }
+ /* x3 because there might be a normalized variant of every keyword,
+ plus theoretically one more for mime... */
+ ret->data.ksk.keywords = GNUNET_malloc
+ (sizeof (char *) * (ent + tok_keywords + paren_keywords) * 3);
+ GNUNET_CONTAINER_meta_data_iterate (md, &gather_uri_data, ret);
+ }
+ if (tok_keywords > 0)
+ ret->data.ksk.keywordCount += get_keywords_from_tokens (filename,
+ ret->data.ksk.keywords,
+ ret->data.ksk.keywordCount);
+ if (paren_keywords > 0)
+ ret->data.ksk.keywordCount += get_keywords_from_parens (filename,
+ ret->data.ksk.keywords,
+ ret->data.ksk.keywordCount);
+ if (ent > 0)
+ GNUNET_free_non_null (full_name);
return ret;
-
}
static int
needs_percent (char c)
{
- return (!((isalnum (c)) ||
- (c == '-') || (c == '_') || (c == '.') || (c == '~')));
+ return (!
+ ((isalnum ((unsigned char) c)) || (c == '-') || (c == '_') ||
+ (c == '.') || (c == '~')));
}
static char *
uri_ksk_to_string (const struct GNUNET_FS_Uri *uri)
{
- char ** keywords;
+ char **keywords;
unsigned int keywordCount;
size_t n;
char *ret;
size_t slen;
const char *keyword;
- if (uri->type != ksk)
+ if (uri->type != GNUNET_FS_URI_KSK)
return NULL;
keywords = uri->data.ksk.keywords;
keywordCount = uri->data.ksk.keywordCount;
- n =
- keywordCount + strlen (GNUNET_FS_URI_PREFIX) +
- strlen (GNUNET_FS_URI_KSK_INFIX) + 1;
+ n = keywordCount + strlen (GNUNET_FS_URI_PREFIX) +
+ strlen (GNUNET_FS_URI_KSK_INFIX) + 1;
for (i = 0; i < keywordCount; i++)
+ {
+ keyword = keywords[i];
+ slen = strlen (keyword);
+ n += slen;
+ for (j = 0; j < slen; j++)
{
- keyword = keywords[i];
- slen = strlen (keyword);
- n += slen;
- for (j = 0; j < slen; j++)
- {
- if ((j == 0) && (keyword[j] == ' '))
- {
- n--;
- continue; /* skip leading space */
- }
- if (needs_percent (keyword[j]))
- n += 2; /* will use %-encoding */
- }
+ if ((j == 0) && (keyword[j] == ' '))
+ {
+ n--;
+ continue; /* skip leading space */
+ }
+ if (needs_percent (keyword[j]))
+ n += 2; /* will use %-encoding */
}
+ }
ret = GNUNET_malloc (n);
strcpy (ret, GNUNET_FS_URI_PREFIX);
strcat (ret, GNUNET_FS_URI_KSK_INFIX);
wpos = strlen (ret);
for (i = 0; i < keywordCount; i++)
+ {
+ keyword = keywords[i];
+ slen = strlen (keyword);
+ for (j = 0; j < slen; j++)
{
- keyword = keywords[i];
- slen = strlen (keyword);
- for (j = 0; j < slen; j++)
- {
- if ((j == 0) && (keyword[j] == ' '))
- continue; /* skip leading space */
- if (needs_percent (keyword[j]))
- {
- sprintf (&ret[wpos], "%%%02X", keyword[j]);
- wpos += 3;
- }
- else
- {
- ret[wpos++] = keyword[j];
- }
- }
- if (i != keywordCount - 1)
- ret[wpos++] = '+';
+ if ((j == 0) && (keyword[j] == ' '))
+ continue; /* skip leading space */
+ if (needs_percent (keyword[j]))
+ {
+ sprintf (&ret[wpos], "%%%02X", (unsigned char) keyword[j]);
+ wpos += 3;
+ }
+ else
+ {
+ ret[wpos++] = keyword[j];
+ }
}
+ if (i != keywordCount - 1)
+ ret[wpos++] = '+';
+ }
return ret;
}
static char *
uri_sks_to_string (const struct GNUNET_FS_Uri *uri)
{
- const GNUNET_HashCode * namespace;
- const char *identifier;
char *ret;
- struct GNUNET_CRYPTO_HashAsciiEncoded ns;
-
- if (uri->type != sks)
+ char buf[1024];
+
+ if (GNUNET_FS_URI_SKS != uri->type)
return NULL;
- namespace = &uri->data.sks.namespace;
- identifier = uri->data.sks.identifier;
- GNUNET_CRYPTO_hash_to_enc (namespace, &ns);
- GNUNET_asprintf (&ret,
- "%s%s%s/%s",
- GNUNET_FS_URI_PREFIX,
- GNUNET_FS_URI_SKS_INFIX,
- (const char *) &ns, identifier);
+ ret = GNUNET_STRINGS_data_to_string (&uri->data.sks.ns,
+ sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
+ buf,
+ sizeof (buf));
+ GNUNET_assert (NULL != ret);
+ ret[0] = '\0';
+ GNUNET_asprintf (&ret, "%s%s%s/%s", GNUNET_FS_URI_PREFIX,
+ GNUNET_FS_URI_SKS_INFIX, buf,
+ uri->data.sks.identifier);
return ret;
}
static char *
uri_chk_to_string (const struct GNUNET_FS_Uri *uri)
{
- const struct FileIdentifier * fi;
+ const struct FileIdentifier *fi;
char *ret;
struct GNUNET_CRYPTO_HashAsciiEncoded keyhash;
struct GNUNET_CRYPTO_HashAsciiEncoded queryhash;
- if (uri->type != chk)
+ if (uri->type != GNUNET_FS_URI_CHK)
return NULL;
fi = &uri->data.chk;
GNUNET_CRYPTO_hash_to_enc (&fi->chk.key, &keyhash);
GNUNET_CRYPTO_hash_to_enc (&fi->chk.query, &queryhash);
- GNUNET_asprintf (&ret,
- "%s%s%s.%s.%llu",
- GNUNET_FS_URI_PREFIX,
- GNUNET_FS_URI_CHK_INFIX,
- (const char *) &keyhash,
- (const char *) &queryhash,
- GNUNET_ntohll (fi->file_length));
- return ret;
-}
-
-/**
- * Convert binary data to a string.
- *
- * @return converted data
- */
-static char *
-bin2enc (const void *data, size_t size)
-{
- /**
- * 64 characters for encoding, 6 bits per character
- */
- static char *tbl =
- "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_=";
-
- size_t len;
- size_t pos;
- unsigned int bits;
- unsigned int hbits;
- char *ret;
-
- GNUNET_assert (strlen (tbl) == 64);
- len = size * 8 / 6;
- if (((size * 8) % 6) != 0)
- len++;
- ret = GNUNET_malloc (len + 1);
- ret[len] = '\0';
- len = 0;
- bits = 0;
- hbits = 0;
- for (pos = 0; pos < size; pos++)
- {
- bits |= ((((const unsigned char *) data)[pos]) << hbits);
- hbits += 8;
- while (hbits >= 6)
- {
- ret[len++] = tbl[bits & 63];
- bits >>= 6;
- hbits -= 6;
- }
- }
- if (hbits > 0)
- ret[len++] = tbl[bits & 63];
+ GNUNET_asprintf (&ret, "%s%s%s.%s.%llu", GNUNET_FS_URI_PREFIX,
+ GNUNET_FS_URI_CHK_INFIX, (const char *) &keyhash,
+ (const char *) &queryhash, GNUNET_ntohll (fi->file_length));
return ret;
}
char *ret;
struct GNUNET_CRYPTO_HashAsciiEncoded keyhash;
struct GNUNET_CRYPTO_HashAsciiEncoded queryhash;
- char *peerId;
- char *peerSig;
+ char *peer_id;
+ char peer_sig[SIGNATURE_ASCII_LENGTH + 1];
GNUNET_CRYPTO_hash_to_enc (&uri->data.loc.fi.chk.key, &keyhash);
GNUNET_CRYPTO_hash_to_enc (&uri->data.loc.fi.chk.query, &queryhash);
- peerId = bin2enc (&uri->data.loc.peer,
- sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
- peerSig = bin2enc (&uri->data.loc.contentSignature,
- sizeof (struct GNUNET_CRYPTO_RsaSignature));
+ peer_id =
+ GNUNET_CRYPTO_eddsa_public_key_to_string (&uri->data.loc.peer.public_key);
+ GNUNET_assert (NULL !=
+ GNUNET_STRINGS_data_to_string (&uri->data.loc.contentSignature,
+ sizeof (struct GNUNET_CRYPTO_EddsaSignature),
+ peer_sig,
+ sizeof (peer_sig)));
GNUNET_asprintf (&ret,
- "%s%s%s.%s.%llu.%s.%s.%llu",
- GNUNET_FS_URI_PREFIX,
- GNUNET_FS_URI_LOC_INFIX,
- (const char *) &keyhash,
+ "%s%s%s.%s.%llu.%s.%s.%llu", GNUNET_FS_URI_PREFIX,
+ GNUNET_FS_URI_LOC_INFIX, (const char *) &keyhash,
(const char *) &queryhash,
- (unsigned long long) GNUNET_ntohll (uri->data.loc.fi.file_length),
- peerId,
- peerSig,
- (unsigned long long) uri->data.loc.expirationTime.value);
- GNUNET_free (peerSig);
- GNUNET_free (peerId);
+ (unsigned long long) GNUNET_ntohll (uri->data.loc.
+ fi.file_length),
+ peer_id,
+ peer_sig,
+ (unsigned long long) uri->data.loc.expirationTime.abs_value_us / 1000000LL);
+ GNUNET_free (peer_id);
return ret;
}
GNUNET_FS_uri_to_string (const struct GNUNET_FS_Uri *uri)
{
if (uri == NULL)
- {
- GNUNET_break (0);
- return NULL;
- }
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
switch (uri->type)
- {
- case ksk:
- return uri_ksk_to_string (uri);
- case sks:
- return uri_sks_to_string (uri);
- case chk:
- return uri_chk_to_string (uri);
- case loc:
- return uri_loc_to_string (uri);
- default:
- GNUNET_break (0);
- return NULL;
- }
-}
-
-
-#if 0
-
-/**
- * Construct a location URI.
- *
- * @param baseURI content offered by the sender
- * @param sender identity of the peer with the content
- * @param expiration_time how long will the content be offered?
- * @param proto transport protocol to reach the peer
- * @param sas sender address size (for HELLO)
- * @param address sas bytes of address information
- * @param signer function to call for obtaining
- * RSA signatures for "sender".
- * @return the location URI
- */
-struct GNUNET_ECRS_URI *
-GNUNET_ECRS_location_to_uri (const struct GNUNET_ECRS_URI *baseUri,
- const GNUNET_RSA_PublicKey * sender,
- GNUNET_Int32Time expirationTime,
- GNUNET_ECRS_SignFunction signer,
- void *signer_cls)
-{
- struct GNUNET_ECRS_URI *uri;
-
- if (baseUri->type != chk)
+ {
+ case GNUNET_FS_URI_KSK:
+ return uri_ksk_to_string (uri);
+ case GNUNET_FS_URI_SKS:
+ return uri_sks_to_string (uri);
+ case GNUNET_FS_URI_CHK:
+ return uri_chk_to_string (uri);
+ case GNUNET_FS_URI_LOC:
+ return uri_loc_to_string (uri);
+ default:
+ GNUNET_break (0);
return NULL;
-
- uri = GNUNET_malloc (sizeof (struct GNUNET_ECRS_URI));
- uri->type = loc;
- uri->data.loc.fi = baseUri->data.fi;
- uri->data.loc.peer = *sender;
- uri->data.loc.expirationTime = expirationTime;
- signer (signer_cls,
- sizeof (GNUNET_EC_FileIdentifier) +
- sizeof (GNUNET_PeerIdentity) +
- sizeof (GNUNET_Int32Time),
- &uri->data.loc.fi, &uri->data.loc.contentSignature);
- return uri;
+ }
}
-#endif
-
-/* end of uri.c */
+/* end of fs_uri.c */
projects / oweals / gnunet.git / blobdiff