56254ed50d
For users with out-db rasters in cloud object storage, the ability to set the config options for the VSI access is needed. In particular, the authentication keys need to be set for access to non-public rasters. For example, ``` SET postgis.gdal_vsi_options='AWS_ACCESS_KEY_ID=xxxxxxxxxxxx AWS_SECRET_ACCESS_KEY=yyyyyyyyyyyyyyyyy'; ``` This commit also removes the ST_GDALOpenOptions() function, which was never part of a release, in favour of the GUC approach.
174 lines
3.7 KiB
C
174 lines
3.7 KiB
C
/**********************************************************************
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*
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* PostGIS - Spatial Types for PostgreSQL
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* http://postgis.net
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*
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* PostGIS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* PostGIS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with PostGIS. If not, see <http://www.gnu.org/licenses/>.
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*
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**********************************************************************
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*
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* Copyright 2021 Paul Ramsey <pramsey@cleverelephant.ca>
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*
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**********************************************************************/
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#include "liblwgeom_internal.h"
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#include "optionlist.h"
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#include <ctype.h> // tolower
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#include <string.h> // strtok
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static void
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option_list_string_to_lower(char* key)
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{
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if (!key) return;
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while (*key) {
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*key = tolower(*key);
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key++;
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}
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return;
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}
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// static void
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// option_list_string_to_upper(char* key)
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// {
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// if (!key) return;
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// while (*key) {
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// *key = toupper(*key);
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// key++;
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// }
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// return;
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// }
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const char*
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option_list_search(char** olist, const char* key)
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{
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size_t i = 0;
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if (!olist) return NULL;
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if (!key) return NULL;
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while (olist[i]) {
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// Even entries are keys
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if (!(i % 2)) {
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// Does this key match ours?
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if (strcmp(olist[i], key) == 0) {
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return olist[i+1];
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}
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}
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i++;
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}
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return NULL;
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}
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size_t
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option_list_length(char** olist)
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{
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size_t i = 0;
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char **iter = olist;
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if (!olist) return 0;
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while(*iter) {
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i++;
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iter++;
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}
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return i;
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}
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void
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option_list_parse(char* input, char** olist)
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{
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const char *toksep = " ";
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const char kvsep = '=';
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char *key, *val;
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if (!input) return;
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size_t i = 0, sz;
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/* strtok nulls out the space between each token */
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for (key = strtok(input, toksep); key; key = strtok(NULL, toksep)) {
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if (i >= OPTION_LIST_SIZE) return;
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olist[i] = key;
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i += 2;
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}
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sz = i;
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/* keys are every second entry in the olist */
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for (i = 0; i < sz; i += 2) {
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if (i >= OPTION_LIST_SIZE) return;
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key = olist[i];
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/* find the key/value separator */
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val = strchr(key, kvsep);
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if (!val) {
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lwerror("Option string entry '%s' lacks separator '%c'", key, kvsep);
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}
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/* null out the separator */
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*val = '\0';
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/* point value entry to just after separator */
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olist[i+1] = ++val;
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/* all keys forced to lower case */
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option_list_string_to_lower(key);
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}
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}
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void
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option_list_gdal_parse(char* input, char** olist)
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{
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const char *toksep = " ";
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const char kvsep = '=';
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const char q2 = '"';
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const char q1 = '\'';
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const char notspace = 0x1F;
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char *key, *val;
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int in_str = 0;
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size_t i = 0, sz, input_sz;
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char *ptr = input;
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if (!input)
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lwerror("Option string is null");
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input_sz = strlen(input);
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/* Temporarily hide quoted spaces */
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while(*ptr) {
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if (*ptr == q2 || *ptr == q1)
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in_str = !in_str;
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else if (in_str && *ptr == ' ')
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*ptr = notspace;
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ptr++;
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}
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/* Tokenize on spaces */
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for (key = strtok(input, toksep); key; key = strtok(NULL, toksep)) {
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if (i >= OPTION_LIST_SIZE) return;
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olist[i++] = key;
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}
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/* Check that these are GDAL KEY=VALUE options */
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sz = i;
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for (i = 0; i < sz; ++i) {
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if (i >= OPTION_LIST_SIZE) return;
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key = olist[i];
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/* find the key/value separator */
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val = strchr(key, kvsep);
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if (!val) {
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lwerror("Option string entry '%s' lacks separator '%c'", key, kvsep);
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return;
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}
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}
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/* Unhide quoted space */
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for (i = 0; i <= input_sz; ++i) {
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if (input[i] == notspace)
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input[i] = ' ';
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}
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}
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