2 #include <atalk/standards.h>
11 #include <atalk/talloc.h>
12 #include <atalk/logger.h>
13 #include <atalk/errchk.h>
14 #include <atalk/spotlight.h>
16 #include "slmod_sparql_map.h"
18 struct yy_buffer_state;
19 typedef struct yy_buffer_state *YY_BUFFER_STATE;
20 extern int yylex (void);
21 extern void yyerror (char const *);
22 extern void *yyterminate(void);
23 extern YY_BUFFER_STATE yy_scan_string( const char *str);
24 extern void yy_delete_buffer ( YY_BUFFER_STATE buffer );
26 /* forward declarations */
27 static const char *map_expr(const char *attr, char op, const char *val);
28 static const char *map_daterange(const char *dateattr, time_t date1, time_t date2);
29 static time_t isodate2unix(const char *s);
31 /* global vars, eg needed by the lexer */
35 static gchar *ssp_result;
36 static char sparqlvar;
37 static char *result_limit;
41 #define SPRAW_TIME_OFFSET 978307200
42 extern int map_spotlight_to_sparql_query(slq_t *slq, gchar **sparql_result);
43 extern slq_t *ssp_slq;
56 %type <sval> match expr line function
63 %token OBRACE CBRACE EQUAL UNEQUAL GT LT COMMA QUOTE
75 if (ssp_slq->slq_result_limit)
76 result_limit = talloc_asprintf(ssp_slq, "LIMIT %ld", ssp_slq->slq_result_limit);
79 ssp_result = talloc_asprintf(ssp_slq,
81 "{ %s . ?obj nie:url ?url . FILTER(tracker:uri-is-descendant('file://%s/', ?url)) } %s",
82 $1, ssp_slq->slq_vol->v_path, result_limit);
95 if ($1 == NULL || $3 == NULL)
97 if (strcmp($1, $3) != 0)
98 $$ = talloc_asprintf(ssp_slq, "{ %s } UNION { %s }", $1, $3);
100 $$ = talloc_asprintf(ssp_slq, "%s", $1);
102 | match {$$ = $1; if ($$ == NULL) YYABORT;}
103 | function {$$ = $1;}
104 | OBRACE expr CBRACE {$$ = talloc_asprintf(ssp_slq, "%s", $2);}
106 if (!ssp_slq->slq_allow_expr) {
107 yyerror("Spotlight queries with logic expressions are disabled");
110 $$ = talloc_asprintf(ssp_slq, "%s . %s", $1, $3);
113 if (!ssp_slq->slq_allow_expr) {
114 yyerror("Spotlight queries with logic expressions are disabled");
117 if (strcmp($1, $3) != 0)
118 $$ = talloc_asprintf(ssp_slq, "{ %s } UNION { %s }", $1, $3);
120 $$ = talloc_asprintf(ssp_slq, "%s", $1);
125 WORD EQUAL QUOTE WORD QUOTE {$$ = map_expr($1, '=', $4);}
126 | WORD UNEQUAL QUOTE WORD QUOTE {$$ = map_expr($1, '!', $4);}
127 | WORD LT QUOTE WORD QUOTE {$$ = map_expr($1, '<', $4);}
128 | WORD GT QUOTE WORD QUOTE {$$ = map_expr($1, '>', $4);}
129 | WORD EQUAL QUOTE WORD QUOTE WORD {$$ = map_expr($1, '=', $4);}
130 | WORD UNEQUAL QUOTE WORD QUOTE WORD {$$ = map_expr($1, '!', $4);}
131 | WORD LT QUOTE WORD QUOTE WORD {$$ = map_expr($1, '<', $4);}
132 | WORD GT QUOTE WORD QUOTE WORD {$$ = map_expr($1, '>', $4);}
136 FUNC_INRANGE OBRACE WORD COMMA date COMMA date CBRACE {$$ = map_daterange($3, $5, $7);}
140 DATE_ISO OBRACE WORD CBRACE {$$ = isodate2unix($3);}
141 | WORD {$$ = atoi($1) + SPRAW_TIME_OFFSET;}
146 static time_t isodate2unix(const char *s)
150 if (strptime(s, "%Y-%m-%dT%H:%M:%SZ", &tm) == NULL)
155 static const char *map_daterange(const char *dateattr, time_t date1, time_t date2)
159 struct spotlight_sparql_map *p;
161 char buf1[64], buf2[64];
163 EC_NULL_LOG( tmp = localtime(&date1) );
164 strftime(buf1, sizeof(buf1), "%Y-%m-%dT%H:%M:%SZ", tmp);
165 EC_NULL_LOG( tmp = localtime(&date2) );
166 strftime(buf2, sizeof(buf2), "%Y-%m-%dT%H:%M:%SZ", tmp);
168 for (p = spotlight_sparql_map; p->ssm_spotlight_attr; p++) {
169 if (strcmp(dateattr, p->ssm_spotlight_attr) == 0) {
170 result = talloc_asprintf(ssp_slq,
171 "?obj %s ?%c FILTER (?%c > '%s' && ?%c < '%s')",
189 static char *map_type_search(const char *attr, char op, const char *val)
192 const char *sparqlAttr;
194 for (struct MDTypeMap *p = MDTypeMap; p->mdtm_value; p++) {
195 if (strcmp(p->mdtm_value, val) == 0) {
196 switch (p->mdtm_type) {
198 sparqlAttr = "rdf:type";
201 sparqlAttr = "nie:mimeType";
206 result = talloc_asprintf(ssp_slq, "?obj %s '%s'",
215 static const char *map_expr(const char *attr, char op, const char *val)
219 struct spotlight_sparql_map *p;
223 bstring q = NULL, search = NULL, replace = NULL;
225 for (p = spotlight_sparql_map; p->ssm_spotlight_attr; p++) {
226 if (p->ssm_enabled && (strcmp(p->ssm_spotlight_attr, attr) == 0)) {
227 if (p->ssm_type != ssmt_type && p->ssm_sparql_attr == NULL) {
228 yyerror("unsupported Spotlight attribute");
231 switch (p->ssm_type) {
233 result = talloc_asprintf(ssp_slq, "?obj %s '%s'", p->ssm_sparql_attr, val);
236 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(?%c %c%c '%s')",
241 op == '!' ? '=' : ' ', /* append '=' to '!' */
246 q = bformat("^%s$", val);
247 search = bfromcstr("*");
248 replace = bfromcstr(".*");
249 bfindreplace(q, search, replace, 0);
250 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(regex(?%c, '%s'))",
258 result = talloc_asprintf(ssp_slq, "?obj %s '%s'", p->ssm_sparql_attr, val);
261 t = atoi(val) + SPRAW_TIME_OFFSET;
262 EC_NULL( tmp = localtime(&t) );
263 strftime(buf1, sizeof(buf1), "%Y-%m-%dT%H:%M:%SZ", tmp);
264 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(?%c %c '%s')",
273 result = map_type_search(attr, op, val);
292 void yyerror(const char *str)
295 printf("yyerror: %s\n", str);
297 LOG(log_error, logtype_sl, "yyerror: %s", str);
307 * Map a Spotlight RAW query string to a SPARQL query string
309 * @param[in] slq Spotlight query handle
310 * @param[out] sparql_result Mapped SPARQL query, string is allocated in
311 * talloc context of slq
312 * @return 0 on success, -1 on error
314 int map_spotlight_to_sparql_query(slq_t *slq, gchar **sparql_result)
317 YY_BUFFER_STATE s = NULL;
321 s = yy_scan_string(slq->slq_qstring);
324 EC_ZERO( yyparse() );
330 *sparql_result = ssp_result;
332 *sparql_result = NULL;
337 int main(int argc, char **argv)
343 printf("usage: %s QUERY\n", argv[0]);
347 ssp_slq = talloc_zero(NULL, slq_t);
348 struct vol *vol = talloc_zero(ssp_slq, struct vol);
349 vol->v_path = "/Volumes/test";
350 ssp_slq->slq_vol = vol;
351 ssp_slq->slq_allow_expr = true;
354 s = yy_scan_string(argv[1]);
361 printf("SPARQL: %s\n", ssp_result ? ssp_result : "(empty)");