]> git.tdb.fi Git - ext/subsurface.git/blobdiff - parse-xml.c
Correctly free the GSList in file_open
[ext/subsurface.git] / parse-xml.c
index 5eabc353c17c47e4e68db5e0db2ded912f2b1437..6840610728e0e0f6da0f89d1218e11d7c9a101c5 100644 (file)
@@ -3,10 +3,16 @@
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
 #define __USE_XOPEN
 #include <time.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>
+#ifdef XSLT
+#include <libxslt/transform.h>
+#endif
 
 #include "dive.h"
 #include "uemis.h"
@@ -106,7 +112,6 @@ static int cylinder_index;
 static enum import_source {
        UNKNOWN,
        LIBDIVECOMPUTER,
-       SUUNTO,
        UEMIS,
        DIVINGLOG,
        UDDF,
@@ -640,26 +645,6 @@ static void try_to_fill_sample(struct sample *sample, const char *name, char *bu
        nonmatch("sample", name, buf);
 }
 
-/*
- * Crazy suunto xml. Look at how those o2/he things match up.
- */
-static int suunto_dive_match(struct dive **divep, const char *name, int len, char *buf)
-{
-       struct dive *dive = *divep;
-
-       return  MATCH(".o2pct", percent, &dive->cylinder[0].gasmix.o2) ||
-               MATCH(".hepct_0", percent, &dive->cylinder[0].gasmix.he) ||
-               MATCH(".o2pct_2", percent, &dive->cylinder[1].gasmix.o2) ||
-               MATCH(".hepct_1", percent, &dive->cylinder[1].gasmix.he) ||
-               MATCH(".o2pct_3", percent, &dive->cylinder[2].gasmix.o2) ||
-               MATCH(".hepct_2", percent, &dive->cylinder[2].gasmix.he) ||
-               MATCH(".o2pct_4", percent, &dive->cylinder[3].gasmix.o2) ||
-               MATCH(".hepct_3", percent, &dive->cylinder[3].gasmix.he) ||
-               MATCH(".cylindersize", cylindersize, &dive->cylinder[0].type.size) ||
-               MATCH(".cylinderworkpressure", pressure, &dive->cylinder[0].type.workingpressure) ||
-               0;
-}
-
 static const char *country, *city;
 
 static void divinglog_place(char *place, void *_location)
@@ -974,11 +959,6 @@ static void try_to_fill_dive(struct dive **divep, const char *name, char *buf)
        start_match("dive", name, buf);
 
        switch (import_source) {
-       case SUUNTO:
-               if (suunto_dive_match(divep, name, len, buf))
-                       return;
-               break;
-
        case UEMIS:
                if (uemis_dive_match(divep, name, len, buf))
                        return;
@@ -1046,7 +1026,8 @@ static void try_to_fill_dive(struct dive **divep, const char *name, char *buf)
                return;
        if (MATCH(".buddy", utf8_string, &dive->buddy))
                return;
-
+       if (MATCH(".rating", get_index, &dive->rating))
+               return;
        if (MATCH(".cylinder.size", cylindersize, &dive->cylinder[cylinder_index].type.size))
                return;
        if (MATCH(".cylinder.workpressure", pressure, &dive->cylinder[cylinder_index].type.workingpressure))
@@ -1082,127 +1063,10 @@ static void dive_start(void)
        memset(&tm, 0, sizeof(tm));
 }
 
-static void sanitize_gasmix(struct gasmix *mix)
-{
-       unsigned int o2, he;
-
-       o2 = mix->o2.permille;
-       he = mix->he.permille;
-
-       /* Regular air: leave empty */
-       if (!he) {
-               if (!o2)
-                       return;
-               /* 20.9% or 21% O2 is just air */
-               if (o2 >= 209 && o2 <= 210) {
-                       mix->o2.permille = 0;
-                       return;
-               }
-       }
-
-       /* Sane mix? */
-       if (o2 <= 1000 && he <= 1000 && o2+he <= 1000)
-               return;
-       fprintf(stderr, "Odd gasmix: %d O2 %d He\n", o2, he);
-       memset(mix, 0, sizeof(*mix));
-}
-
-/*
- * See if the size/workingpressure looks like some standard cylinder
- * size, eg "AL80".
- */
-static void match_standard_cylinder(cylinder_type_t *type)
-{
-       double cuft;
-       int psi, len;
-       const char *fmt;
-       char buffer[20], *p;
-
-       /* Do we already have a cylinder description? */
-       if (type->description)
-               return;
-
-       cuft = ml_to_cuft(type->size.mliter);
-       cuft *= to_ATM(type->workingpressure);
-       psi = to_PSI(type->workingpressure);
-
-       switch (psi) {
-       case 2300 ... 2500:     /* 2400 psi: LP tank */
-               fmt = "LP%d";
-               break;
-       case 2600 ... 2700:     /* 2640 psi: LP+10% */
-               fmt = "LP%d";
-               break;
-       case 2900 ... 3100:     /* 3000 psi: ALx tank */
-               fmt = "AL%d";
-               break;
-       case 3400 ... 3500:     /* 3442 psi: HP tank */
-               fmt = "HP%d";
-               break;
-       case 3700 ... 3850:     /* HP+10% */
-               fmt = "HP%d+";
-               break;
-       default:
-               return;
-       }
-       len = snprintf(buffer, sizeof(buffer), fmt, (int) (cuft+0.5));
-       p = malloc(len+1);
-       if (!p)
-               return;
-       memcpy(p, buffer, len+1);
-       type->description = p;
-}
-
-
-/*
- * There are two ways to give cylinder size information:
- *  - total amount of gas in cuft (depends on working pressure and physical size)
- *  - physical size
- *
- * where "physical size" is the one that actually matters and is sane.
- *
- * We internally use physical size only. But we save the workingpressure
- * so that we can do the conversion if required.
- */
-static void sanitize_cylinder_type(cylinder_type_t *type)
-{
-       double volume_of_air, atm, volume;
-
-       /* If we have no working pressure, it had *better* be just a physical size! */
-       if (!type->workingpressure.mbar)
-               return;
-
-       /* No size either? Nothing to go on */
-       if (!type->size.mliter)
-               return;
-
-       if (input_units.volume == CUFT || import_source == SUUNTO) {
-               /* confusing - we don't really start from ml but millicuft !*/
-               volume_of_air = cuft_to_l(type->size.mliter);
-               atm = to_ATM(type->workingpressure);            /* working pressure in atm */
-               volume = volume_of_air / atm;                   /* milliliters at 1 atm: "true size" */
-               type->size.mliter = volume + 0.5;
-       }
-
-       /* Ok, we have both size and pressure: try to match a description */
-       match_standard_cylinder(type);
-}
-
-static void sanitize_cylinder_info(struct dive *dive)
-{
-       int i;
-
-       for (i = 0; i < MAX_CYLINDERS; i++) {
-               sanitize_gasmix(&dive->cylinder[i].gasmix);
-               sanitize_cylinder_type(&dive->cylinder[i].type);
-       }
-}
-
 static void dive_end(void)
 {
        if (!dive)
                return;
-       sanitize_cylinder_info(dive);
        record_dive(dive);
        dive = NULL;
        cylinder_index = 0;
@@ -1344,12 +1208,6 @@ static void visit(xmlNode *n)
        traverse(n->children);
 }
 
-static void suunto_importer(void)
-{
-       import_source = SUUNTO;
-       input_units = SI_units;
-}
-
 static void uemis_importer(void)
 {
        import_source = UEMIS;
@@ -1401,7 +1259,6 @@ static struct nesting {
        { "P", sample_start, sample_end },
 
        /* Import type recognition */
-       { "SUUNTO", suunto_importer },
        { "Divinglog", DivingLog_importer },
        { "pre_dive", uemis_importer },
        { "dives", uemis_importer },
@@ -1445,11 +1302,70 @@ static void reset_all(void)
        import_source = UNKNOWN;
 }
 
+struct memblock {
+       void *buffer;
+       size_t size;
+};
+
+static int readfile(const char *filename, struct memblock *mem)
+{
+       int ret, fd = open(filename, O_RDONLY);
+       struct stat st;
+
+       mem->buffer = NULL;
+       mem->size = 0;
+
+       fd = open(filename, O_RDONLY);
+       if (fd < 0)
+               return fd;
+       ret = fstat(fd, &st);
+       if (ret < 0)
+               goto out;
+       ret = -EINVAL;
+       if (!S_ISREG(st.st_mode))
+               goto out;
+       ret = 0;
+       if (!st.st_size)
+               goto out;
+       mem->buffer = malloc(st.st_size);
+       ret = -1;
+       errno = ENOMEM;
+       if (!mem->buffer)
+               goto out;
+       mem->size = st.st_size;
+       ret = read(fd, mem->buffer, mem->size);
+       if (ret < 0)
+               goto free;
+       if (ret == mem->size)
+               goto out;
+       errno = EIO;
+       ret = -1;
+free:
+       free(mem->buffer);
+       mem->buffer = NULL;
+       mem->size = 0;
+out:
+       close(fd);
+       return ret;
+}
+
 void parse_xml_file(const char *filename, GError **error)
 {
        xmlDoc *doc;
+       struct memblock mem;
 
-       doc = xmlReadFile(filename, NULL, 0);
+       if (readfile(filename, &mem) < 0) {
+               fprintf(stderr, "Failed to read '%s'.\n", filename);
+               if (error) {
+                       *error = g_error_new(g_quark_from_string("subsurface"),
+                                            DIVE_ERROR_PARSE,
+                                            "Failed to read '%s'",
+                                            filename);
+               }
+               return;
+       }
+
+       doc = xmlReadMemory(mem.buffer, mem.size, filename, NULL, 0);
        if (!doc) {
                fprintf(stderr, "Failed to parse '%s'.\n", filename);
                if (error != NULL)
@@ -1466,6 +1382,9 @@ void parse_xml_file(const char *filename, GError **error)
        set_filename(filename);
        reset_all();
        dive_start();
+#ifdef XSLT
+       doc = test_xslt_transforms(doc);
+#endif
        traverse(xmlDocGetRootElement(doc));
        dive_end();
        xmlFreeDoc(doc);
@@ -1476,3 +1395,85 @@ void parse_xml_init(void)
 {
        LIBXML_TEST_VERSION
 }
+
+#ifdef XSLT
+
+/* Maybe we'll want a environment variable that can override this.. */
+static const char *xslt_path = XSLT ":xslt:.";
+
+static xsltStylesheetPtr try_get_stylesheet(const char *path, int len, const char *name)
+{
+       xsltStylesheetPtr ret;
+       int namelen = strlen(name);
+       char *filename = malloc(len+1+namelen+1);
+
+       if (!filename)
+               return NULL;
+
+       memcpy(filename, path, len);
+       filename[len] = G_DIR_SEPARATOR;
+       memcpy(filename + len + 1, name, namelen+1);
+
+       ret = NULL;
+       if (!access(filename, R_OK))
+               ret = xsltParseStylesheetFile(filename);
+       free(filename);
+
+       return ret;
+}
+
+static xsltStylesheetPtr get_stylesheet(const char *name)
+{
+       const char *path = xslt_path, *next;
+
+       do {
+               int len;
+               xsltStylesheetPtr ret;
+
+               next = strchr(path, ':');
+               len = strlen(path);
+               if (next) {
+                       len = next - path;
+                       next++;
+               }
+               ret = try_get_stylesheet(path, len, name);
+               if (ret)
+                       return ret;
+       } while ((path = next) != NULL);
+
+       return NULL;
+}
+
+static struct xslt_files {
+       const char *root;
+       const char *file;
+} xslt_files[] = {
+       { "SUUNTO", "SuuntoSDM.xslt" },
+       { "JDiveLog", "jdivelog2subsurface.xslt" },
+       { NULL, }
+};
+
+xmlDoc *test_xslt_transforms(xmlDoc *doc)
+{
+       struct xslt_files *info = xslt_files;
+       xmlDoc *transformed;
+       xsltStylesheetPtr xslt = NULL;
+       xmlNode *root_element = xmlDocGetRootElement(doc);
+
+       while ((info->root) && (strcasecmp(root_element->name, info->root) != 0)) {
+               info++;
+       }
+
+       if (info->root) {
+               xmlSubstituteEntitiesDefault(1);
+               xslt = get_stylesheet(info->file);
+               if (xslt == NULL)
+                       return doc;
+               transformed = xsltApplyStylesheet(xslt, doc, NULL);
+               xmlFreeDoc(doc);
+               xsltFreeStylesheet(xslt);
+               return transformed;
+       }
+       return doc;
+}
+#endif