VladPolskiy/openstreetmap-mod_tile-python-implementation
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[mod_tile] Make it possible to serve tiles other than .png.

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Make it possible to serve tiles other than raster png files,
e.g. jpeg or javascript vector tiles.

This adds a configuration parameter to tile layers specifying the
file extension and mimetype. The default remain image/png.
This commit is contained in:
Kai Krueger
2012-01-01 18:46:51 +00:00
parent a31b71df9e
commit 68c2dcbcde
2 changed files with 55 additions and 12 deletions
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65
mod_tile.c
View File

@ -873,7 +873,9 @@ static int tile_handler_serve(request_rec *r)
apr_table_setn(r->headers_out, "ETag",
apr_psprintf(r->pool, "\"%s\"", md5));
#endif
ap_set_content_type(r, "image/png");
tile_server_conf *scfg = ap_get_module_config(r->server->module_config, &tile_module);
tile_config_rec *tile_configs = (tile_config_rec *) scfg->configs->elts;
ap_set_content_type(r, tile_configs[rdata->layerNumber].mimeType);
ap_set_content_length(r, len);
add_expiry(r, cmd);
if ((errstatus = ap_meets_conditions(r)) != OK) {
@ -929,7 +931,8 @@ static int tile_translate(request_rec *r)
for (i = 0; i < scfg->configs->nelts; ++i) {
tile_config_rec *tile_config = &tile_configs[i];
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "tile_translate: testing baseuri(%s) name(%s)", tile_config->baseuri, tile_config->xmlname);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "tile_translate: testing baseuri(%s) name(%s) extension(%s)",
tile_config->baseuri, tile_config->xmlname, tile_config->fileExtension );
if (!strncmp(tile_config->baseuri, r->uri, strlen(tile_config->baseuri))) {
@ -937,12 +940,17 @@ static int tile_translate(request_rec *r)
struct protocol * cmd = (struct protocol *) apr_pcalloc(r->pool, sizeof(struct protocol));
bzero(cmd, sizeof(struct protocol));
bzero(rdata, sizeof(struct tile_request_data));
n = sscanf(r->uri+strlen(tile_config->baseuri), "%d/%d/%d.png/%10s", &(cmd->z), &(cmd->x), &(cmd->y), option);
if (n < 3) {
char extension[256];
n = sscanf(r->uri+strlen(tile_config->baseuri),"%d/%d/%d.%s/%10s", &(cmd->z), &(cmd->x), &(cmd->y), extension, option);
if (n < 4) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "tile_translate: Invalid URL for tilelayer %s", tile_config->xmlname);
return DECLINED;
}
if (strcmp(extension, tile_config->fileExtension) != 0) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "tile_translate: Invalid file extension (%s) for tilelayer %s, required %s",
extension, tile_config->xmlname, tile_config->fileExtension);
return DECLINED;
}
oob = (cmd->z < 0 || cmd->z > MAX_ZOOM);
if (!oob) {
@ -975,7 +983,7 @@ static int tile_translate(request_rec *r)
#endif
r->filename = apr_pstrdup(r->pool, abs_path);
if (n == 4) {
if (n == 5) {
if (!strcmp(option, "status")) r->handler = "tile_status";
else if (!strcmp(option, "dirty")) r->handler = "tile_dirty";
else return DECLINED;
@ -983,7 +991,8 @@ static int tile_translate(request_rec *r)
r->handler = "tile_serve";
}
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, "tile_translate: op(%s) xml(%s) z(%d) x(%d) y(%d)", r->handler , cmd->xmlname, cmd->z, cmd->x, cmd->y);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "tile_translate: op(%s) xml(%s) mime(%s) z(%d) x(%d) y(%d)",
r->handler , cmd->xmlname, tile_config->mimeType, cmd->z, cmd->x, cmd->y);
return OK;
}
@ -1181,7 +1190,7 @@ static void register_hooks(__attribute__((unused)) apr_pool_t *p)
ap_hook_map_to_storage(tile_storage_hook, NULL, NULL, APR_HOOK_FIRST);
}
static const char *_add_tile_config(cmd_parms *cmd, void *mconfig, const char *baseuri, const char *name, int minzoom, int maxzoom)
static const char *_add_tile_config(cmd_parms *cmd, void *mconfig, const char *baseuri, const char *name, int minzoom, int maxzoom, const char * fileExtension, const char *mimeType)
{
if (strlen(name) == 0) {
return "ConfigName value must not be null";
@ -1202,21 +1211,34 @@ static const char *_add_tile_config(cmd_parms *cmd, void *mconfig, const char *b
snprintf(tilecfg->baseuri, PATH_MAX, "%s", baseuri);
strncpy(tilecfg->xmlname, name, XMLCONFIG_MAX-1);
strncpy(tilecfg->fileExtension, fileExtension, XMLCONFIG_MAX-1);
strncpy(tilecfg->mimeType, mimeType, XMLCONFIG_MAX-1);
tilecfg->xmlname[XMLCONFIG_MAX-1] = 0;
tilecfg->minzoom = minzoom;
tilecfg->maxzoom = maxzoom;
ap_log_error(APLOG_MARK, APLOG_NOTICE, APR_SUCCESS, cmd->server,
"Loading tile config %s at %s for zooms %i - %i from tile directory %s",
name, baseuri, minzoom, maxzoom, scfg->tile_dir);
"Loading tile config %s at %s for zooms %i - %i from tile directory %s with extension .%s and mime type %s",
name, baseuri, minzoom, maxzoom, scfg->tile_dir, fileExtension, mimeType);
return NULL;
}
static const char *add_tile_mime_config(cmd_parms *cmd, void *mconfig, const char *baseuri, const char *name, const char * fileExtension)
{
if (strcmp(fileExtension,"png") == 0) {
return _add_tile_config(cmd, mconfig, baseuri, name, 0, MAX_ZOOM, fileExtension, "image/png");
}
if (strcmp(fileExtension,"js") == 0) {
return _add_tile_config(cmd, mconfig, baseuri, name, 0, MAX_ZOOM, fileExtension, "image/js");
}
return _add_tile_config(cmd, mconfig, baseuri, name, 0, MAX_ZOOM, fileExtension, "image/png");
}
static const char *add_tile_config(cmd_parms *cmd, void *mconfig, const char *baseuri, const char *name)
{
return _add_tile_config(cmd, mconfig, baseuri, name, 0, MAX_ZOOM);
return _add_tile_config(cmd, mconfig, baseuri, name, 0, MAX_ZOOM, "png", "image/png");
}
static const char *load_tile_config(cmd_parms *cmd, void *mconfig, const char *conffile)
@ -1228,6 +1250,8 @@ static const char *load_tile_config(cmd_parms *cmd, void *mconfig, const char *c
char key[INILINE_MAX];
char value[INILINE_MAX];
const char * result;
char fileExtension[INILINE_MAX];
char mimeType[INILINE_MAX];
if (strlen(conffile) == 0) {
strcpy(filename, RENDERD_CONFIG);
@ -1248,6 +1272,8 @@ static const char *load_tile_config(cmd_parms *cmd, void *mconfig, const char *c
return "XML name too long";
}
sscanf(line, "[%[^]]", xmlname);
strcpy(fileExtension,"png");
strcpy(mimeType,"image/png");
} else if (sscanf(line, "%[^=]=%[^;#]", key, value) == 2
|| sscanf(line, "%[^=]=\"%[^\"]\"", key, value) == 2) {
@ -1255,9 +1281,17 @@ static const char *load_tile_config(cmd_parms *cmd, void *mconfig, const char *c
if (strlen(value) >= PATH_MAX){
return "URI too long";
}
result = add_tile_config(cmd, mconfig, value, xmlname);
result = _add_tile_config(cmd, mconfig, value, xmlname, 0, MAX_ZOOM, fileExtension, mimeType);
if (result != NULL) return result;
}
if (!strcmp(key, "TYPE")){
if (strlen(value) >= PATH_MAX){
return "TYPE too long";
}
if (sscanf(value, "%[^ ] %[^;#]", fileExtension, mimeType) != 2) {
return "TYPE is not correctly parsable";
}
}
}
}
fclose(hini);
@ -1595,6 +1629,13 @@ static const command_rec tile_cmds[] =
OR_OPTIONS, /* where available */
"path and name of renderd config to use" /* directive description */
),
AP_INIT_TAKE3(
"AddTileConfig", /* directive name */
add_tile_mime_config, /* config action routine */
NULL, /* argument to include in call */
OR_OPTIONS, /* where available */
"path and name of renderd config to use" /* directive description */
),
AP_INIT_TAKE1(
"ModTileRequestTimeout", /* directive name */
mod_tile_request_timeout_config, /* config action routine */

2
mod_tile.h
View File

@ -58,6 +58,8 @@ typedef struct stats_data {
typedef struct {
char xmlname[XMLCONFIG_MAX];
char baseuri[PATH_MAX];
char fileExtension[PATH_MAX];
char mimeType[PATH_MAX];
int minzoom;
int maxzoom;
} tile_config_rec;