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 "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);
90 * We can't properly handle these in expressions, fortunately this
91 * is probably only ever used by OS X as sole element in an
92 * expression ie "False" (when Finder window selected our share
93 * but no search string entered yet). Packet traces showed that OS
94 * X Spotlight server then returns a failure (ie -1) which is what
95 * we do here too by calling YYABORT.
100 if ($1 == NULL || $3 == NULL)
102 if (strcmp($1, $3) != 0)
103 $$ = talloc_asprintf(ssp_slq, "{ %s } UNION { %s }", $1, $3);
105 $$ = talloc_asprintf(ssp_slq, "%s", $1);
107 | match {$$ = $1; if ($$ == NULL) YYABORT;}
108 | function {$$ = $1;}
109 | OBRACE expr CBRACE {$$ = talloc_asprintf(ssp_slq, "%s", $2);}
111 if (!ssp_slq->slq_allow_expr) {
112 yyerror("Spotlight queries with logic expressions are disabled");
115 $$ = talloc_asprintf(ssp_slq, "%s . %s", $1, $3);
118 if (!ssp_slq->slq_allow_expr) {
119 yyerror("Spotlight queries with logic expressions are disabled");
122 if (strcmp($1, $3) != 0)
123 $$ = talloc_asprintf(ssp_slq, "{ %s } UNION { %s }", $1, $3);
125 $$ = talloc_asprintf(ssp_slq, "%s", $1);
130 WORD EQUAL QUOTE WORD QUOTE {$$ = map_expr($1, '=', $4);}
131 | WORD UNEQUAL QUOTE WORD QUOTE {$$ = map_expr($1, '!', $4);}
132 | WORD LT QUOTE WORD QUOTE {$$ = map_expr($1, '<', $4);}
133 | WORD GT QUOTE WORD QUOTE {$$ = map_expr($1, '>', $4);}
134 | WORD EQUAL QUOTE WORD QUOTE WORD {$$ = map_expr($1, '=', $4);}
135 | WORD UNEQUAL QUOTE WORD QUOTE WORD {$$ = map_expr($1, '!', $4);}
136 | WORD LT QUOTE WORD QUOTE WORD {$$ = map_expr($1, '<', $4);}
137 | WORD GT QUOTE WORD QUOTE WORD {$$ = map_expr($1, '>', $4);}
141 FUNC_INRANGE OBRACE WORD COMMA date COMMA date CBRACE {$$ = map_daterange($3, $5, $7);}
145 DATE_ISO OBRACE WORD CBRACE {$$ = isodate2unix($3);}
146 | WORD {$$ = atoi($1) + SPRAW_TIME_OFFSET;}
151 static time_t isodate2unix(const char *s)
155 if (strptime(s, "%Y-%m-%dT%H:%M:%SZ", &tm) == NULL)
160 static const char *map_daterange(const char *dateattr, time_t date1, time_t date2)
164 struct spotlight_sparql_map *p;
166 char buf1[64], buf2[64];
168 EC_NULL_LOG( tmp = localtime(&date1) );
169 strftime(buf1, sizeof(buf1), "%Y-%m-%dT%H:%M:%SZ", tmp);
170 EC_NULL_LOG( tmp = localtime(&date2) );
171 strftime(buf2, sizeof(buf2), "%Y-%m-%dT%H:%M:%SZ", tmp);
173 for (p = spotlight_sparql_map; p->ssm_spotlight_attr; p++) {
174 if (strcmp(dateattr, p->ssm_spotlight_attr) == 0) {
175 result = talloc_asprintf(ssp_slq,
176 "?obj %s ?%c FILTER (?%c > '%s' && ?%c < '%s')",
194 static char *map_type_search(const char *attr, char op, const char *val)
197 const char *sparqlAttr;
199 for (struct MDTypeMap *p = MDTypeMap; p->mdtm_value; p++) {
200 if (strcmp(p->mdtm_value, val) == 0) {
201 switch (p->mdtm_type) {
203 sparqlAttr = "rdf:type";
206 sparqlAttr = "nie:mimeType";
211 result = talloc_asprintf(ssp_slq, "?obj %s '%s'",
220 static const char *map_expr(const char *attr, char op, const char *val)
224 struct spotlight_sparql_map *p;
228 bstring q = NULL, search = NULL, replace = NULL;
230 for (p = spotlight_sparql_map; p->ssm_spotlight_attr; p++) {
231 if (p->ssm_enabled && (strcmp(p->ssm_spotlight_attr, attr) == 0)) {
232 if (p->ssm_type != ssmt_type && p->ssm_sparql_attr == NULL) {
233 yyerror("unsupported Spotlight attribute");
236 switch (p->ssm_type) {
238 result = talloc_asprintf(ssp_slq, "?obj %s '%s'", p->ssm_sparql_attr, val);
241 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(?%c %c%c '%s')",
246 op == '!' ? '=' : ' ', /* append '=' to '!' */
251 q = bformat("^%s$", val);
252 search = bfromcstr("*");
253 replace = bfromcstr(".*");
254 bfindreplace(q, search, replace, 0);
255 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(regex(?%c, '%s'))",
263 result = talloc_asprintf(ssp_slq, "?obj %s '%s'", p->ssm_sparql_attr, val);
266 t = atoi(val) + SPRAW_TIME_OFFSET;
267 EC_NULL( tmp = localtime(&t) );
268 strftime(buf1, sizeof(buf1), "%Y-%m-%dT%H:%M:%SZ", tmp);
269 result = talloc_asprintf(ssp_slq, "?obj %s ?%c FILTER(?%c %c '%s')",
278 result = map_type_search(attr, op, val);
299 void yyerror(const char *str)
302 printf("yyerror: %s\n", str);
304 LOG(log_error, logtype_sl, "yyerror: %s", str);
314 * Map a Spotlight RAW query string to a SPARQL query string
316 * @param[in] slq Spotlight query handle
317 * @param[out] sparql_result Mapped SPARQL query, string is allocated in
318 * talloc context of slq
319 * @return 0 on success, -1 on error
321 int map_spotlight_to_sparql_query(slq_t *slq, gchar **sparql_result)
324 YY_BUFFER_STATE s = NULL;
328 s = yy_scan_string(slq->slq_qstring);
331 EC_ZERO( yyparse() );
337 *sparql_result = ssp_result;
339 *sparql_result = NULL;
344 int main(int argc, char **argv)
350 printf("usage: %s QUERY\n", argv[0]);
354 ssp_slq = talloc_zero(NULL, slq_t);
355 struct vol *vol = talloc_zero(ssp_slq, struct vol);
356 vol->v_path = "/Volumes/test";
357 ssp_slq->slq_vol = vol;
358 ssp_slq->slq_allow_expr = true;
361 s = yy_scan_string(argv[1]);
368 printf("SPARQL: %s\n", ssp_result ? ssp_result : "(empty)");