/*
- Copyright 2015, 2016 IoT.bzh
+ Copyright (C) 2015-2020 IoT.bzh
author: José Bollo <jose.bollo@iot.bzh>
#include <assert.h>
#include <unistd.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
#include <sys/stat.h>
#include "verbose.h"
#include "wgt.h"
#include "wgt-info.h"
+#include "wgt-strings.h"
#include "wgtpkg-files.h"
#include "wgtpkg-workdir.h"
#include "wgtpkg-zip.h"
#include "wgtpkg-permissions.h"
#include "wgtpkg-digsig.h"
#include "wgtpkg-install.h"
+#include "wgtpkg-uninstall.h"
#include "secmgr-wrap.h"
#include "utils-dir.h"
+#include "wgtpkg-unit.h"
+#include "utils-systemd.h"
+#include "utils-file.h"
-static const char permission_required[] = "required";
-static const char permission_optional[] = "optional";
-static const char feature_required_permissions[] = FWK_PREFIX "required-permissions";
static const char* exec_type_strings[] = {
"application/x-executable",
"application/vnd.agl.native"
};
+static const char key_afm_prefix[] = "X-AFM-";
+static const char key_afid[] = "ID";
+
+#define HTTP_PORT_BASE 30000
+
+#define AFID_MIN 1
+#define AFID_MAX 1999
+#define AFID_IS_VALID(afid) (AFID_MIN <= (afid) && (afid) <= AFID_MAX)
+#define AFID_COUNT (AFID_MAX - AFID_MIN + 1)
+#define AFID_ACNT ((AFID_COUNT + 31) >> 5)
+#define AFID_ASFT(afid) (((afid) - AFID_MIN) & 31)
+#define AFID_AIDX(afid) (((afid) - AFID_MIN) >> 5)
+#define AFID_TEST(array,afid) ((((array)[AFID_AIDX(afid)]) >> AFID_ASFT(afid)) & 1)
+#define AFID_SET(array,afid) (((array)[AFID_AIDX(afid)]) |= (((uint32_t)1) << AFID_ASFT(afid)))
+
+static uint32_t *afids_array = NULL;
+
+static const char *default_permissions[] = {
+ "urn:AGL:token:valid"
+};
+
+/*
+ * normalize unit files: remove comments, remove heading blanks,
+ * make single lines
+ */
+static void normalize_unit_file(char *content)
+{
+ char *read, *write, c;
+
+ read = write = content;
+ c = *read++;
+ while (c) {
+ switch (c) {
+ case '\n':
+ case ' ':
+ case '\t':
+ c = *read++;
+ break;
+ case '#':
+ case ';':
+ do { c = *read++; } while(c && c != '\n');
+ break;
+ default:
+ *write++ = c;
+ do { *write++ = c = *read++; } while(c && c != '\n');
+ if (write - content >= 2 && write[-2] == '\\')
+ (--write)[-1] = ' ';
+ break;
+ }
+ }
+ *write = c;
+}
+
+static int get_afid_cb(void *closure, const char *name, const char *path, int isuser)
+{
+ char *iter;
+ char *content;
+ size_t length;
+ int rc, p;
+
+ /* reads the file */
+ rc = getfile(path, &content, &length);
+ if (rc < 0)
+ return rc;
+
+ /* normalize the unit file */
+ normalize_unit_file(content);
+
+ /* process the file */
+ iter = strstr(content, key_afm_prefix);
+ while (iter) {
+ iter += sizeof key_afm_prefix - 1;
+ if (*iter == '-')
+ iter++;
+ if (!strncmp(iter, key_afid, sizeof key_afid - 1)) {
+ iter += sizeof key_afid - 1;
+ while(*iter && *iter != '=' && *iter != '\n')
+ iter++;
+ if (*iter == '=') {
+ while(*++iter == ' ');
+ p = atoi(iter);
+ if (AFID_IS_VALID(p))
+ AFID_SET((uint32_t*)closure, p);
+ }
+ }
+ iter = strstr(iter, key_afm_prefix);
+ }
+ free(content);
+ return 0;
+}
+
+static int update_afids(uint32_t *afids)
+{
+ int rc;
+
+ memset(afids, 0, AFID_ACNT * sizeof(uint32_t));
+ rc = systemd_unit_list(0, get_afid_cb, afids);
+ if (rc >= 0)
+ rc = systemd_unit_list(1, get_afid_cb, afids);
+ if (rc < 0)
+ ERROR("troubles while updating afids");
+ return rc;
+}
+
+static int first_free_afid(uint32_t *afids)
+{
+ int afid;
+
+ afid = AFID_MIN;
+ while (afid <= AFID_MAX && !~afids[AFID_AIDX(afid)])
+ afid += 32;
+ while (afid <= AFID_MAX && AFID_TEST(afids, afid))
+ afid++;
+ if (afid > AFID_MAX) {
+ ERROR("Can't compute a valid afid");
+ errno = EADDRNOTAVAIL;
+ afid = -1;
+ }
+ return afid;
+}
+
+static int get_new_afid()
+{
+ int afid;
+
+ /* ensure existing afid bitmap */
+ if (afids_array == NULL) {
+ afids_array = malloc(AFID_ACNT * sizeof(uint32_t));
+ if (afids_array == NULL || update_afids(afids_array) < 0)
+ return -1;
+ }
+
+ /* allocates the afid */
+ afid = first_free_afid(afids_array);
+ if (afid < 0 && errno == EADDRNOTAVAIL) {
+ /* no more ids, try to rescan */
+ memset(afids_array, 0, AFID_ACNT * sizeof(uint32_t));
+ if (update_afids(afids_array) >= 0)
+ afid = first_free_afid(afids_array);
+ }
+ if (afid >= 0)
+ AFID_SET(afids_array, afid);
+
+ return afid;
+}
+
static int check_defined(const void *data, const char *name)
{
if (data)
if (c == 0) {
ERROR("empty string forbidden in '%s' (temporary constraints)", name);
errno = EINVAL;
- return -1;
+ return -1;
}
do {
if (!isalnum(c) && !strchr(".-_", c)) {
ERROR("forbidden char %c in '%s' -> '%s' (temporary constraints)", c, name, value);
errno = EINVAL;
- return -1;
+ return -1;
}
c = value[++pos];
} while(c);
static int check_temporary_constraints(const struct wgt_desc *desc)
{
- int result = check_valid_string(desc->id, "id");
+ int result;
+
+ result = check_valid_string(desc->id, "id");
result |= check_valid_string(desc->version, "version");
result |= check_valid_string(desc->ver, "ver");
- result |= check_defined(desc->icons, "icon");
result |= check_defined(desc->content_src, "content");
+ if (desc->icons)
+ result |= check_defined(desc->icons->src, "icon.src");
if (result)
return result;
- if (desc->icons->next) {
+
+ if (desc->icons && desc->icons->next) {
ERROR("widget has more than one icon defined (temporary constraints)");
errno = EINVAL;
result = -1;
int optional;
while (params) {
- /* check the value */
- if (!strcmp(params->value, permission_required))
- optional = !required;
- else if (!strcmp(params->value, permission_optional))
- optional = 1;
- else {
- ERROR("unexpected parameter value: %s found for %s", params->value, params->name);
- errno = EPERM;
- return -1;
- }
- /* set the permission */
- if (request_permission(params->name)) {
- DEBUG("granted permission: %s", params->name);
- } else if (optional) {
- INFO("optional permission ungranted: %s", params->name);
+ /* check if target */
+ if (!strcmp(params->name, string_sharp_target)) {
+ /* do nothing when #target */
} else {
- ERROR("ungranted permission required: %s", params->name);
- errno = EPERM;
- return -1;
+ /* check the value */
+ if (!strcmp(params->value, string_required))
+ optional = !required;
+ else if (!strcmp(params->value, string_optional))
+ optional = 1;
+ else {
+ ERROR("unexpected parameter value: %s found for %s", params->value, params->name);
+ errno = EPERM;
+ return -1;
+ }
+ /* set the permission */
+ if (request_permission(params->name)) {
+ DEBUG("granted permission: %s", params->name);
+ } else if (optional) {
+ INFO("optional permission ungranted: %s", params->name);
+ } else {
+ ERROR("ungranted permission required: %s", params->name);
+ errno = EPERM;
+ return -1;
+ }
}
params = params->next;
}
return 0;
}
-static int check_widget(const struct wgt_desc *desc)
+static int check_permissions(const struct wgt_desc *desc)
{
int result;
const struct wgt_desc_feature *feature;
- result = check_temporary_constraints(desc);
+ result = 0;
feature = desc->features;
while(result >= 0 && feature) {
- if (!strcmp(feature->name, feature_required_permissions))
+ if (!strcmp(feature->name, feature_required_permission))
result = set_required_permissions(feature->params, feature->required);
feature = feature->next;
}
return result;
}
-static int move_widget(const char *root, const struct wgt_desc *desc, int force)
+static int for_all_content(const struct wgt_desc *desc, int (*action)(const char *src, const char *type))
+{
+ int rc, rc2;
+ struct wgt_desc_feature *feat;
+ const char *src, *type;
+
+ rc = action(desc->content_src, desc->content_type);
+ feat = desc->features;
+ while (feat) {
+ if (!strcmp(feat->name, FWK_PREFIX"widget:provided-unit")) {
+ src = wgt_info_param(feat, "content.src");
+ type = wgt_info_param(feat, "content.type");
+ rc2 = action(src, type);
+ if (rc >= 0 && rc2 < 0)
+ rc = rc2;
+ }
+ feat = feat->next;
+ }
+ return rc;
+}
+
+static int set_exec_flag(const char *src, const char *type)
+{
+ int i, rc;
+
+ if (src && type) {
+ i = sizeof exec_type_strings / sizeof *exec_type_strings;
+ while (i) {
+ if (!strcasecmp(type, exec_type_strings[--i])) {
+ rc = fchmodat(workdirfd, src, 0755, 0);
+ if (rc < 0)
+ ERROR("can't make executable the file %s", src);
+ return rc;
+ }
+ }
+ }
+ return 0;
+}
+
+static int check_one_content(const char *src, const char *type)
+{
+ int rc;
+ struct stat s;
+ int fhtdocs, serr;
+
+ if (!src) {
+ ERROR("a content src is missing");
+ errno = EINVAL;
+ rc = -1;
+ } else {
+ /* TODO: when dealing with HTML and languages, the check should
+ * include i18n path search of widgets */
+ rc = fstatat(workdirfd, src, &s, AT_NO_AUTOMOUNT|AT_SYMLINK_NOFOLLOW);
+ if (rc < 0) {
+ serr = errno;
+ fhtdocs = openat(workdirfd, "htdocs", O_DIRECTORY|O_PATH);
+ if (fhtdocs >= 0) {
+ rc = fstatat(fhtdocs, src, &s, AT_NO_AUTOMOUNT|AT_SYMLINK_NOFOLLOW);
+ serr = errno;
+ close(fhtdocs);
+ }
+ errno = serr;
+ }
+ if (rc < 0)
+ ERROR("can't get info on content %s: %m", src);
+ else if (!S_ISREG(s.st_mode)) {
+ ERROR("content %s isn't a regular file", src);
+ errno = EINVAL;
+ rc = -1;
+ }
+ }
+ return rc;
+}
+
+static int check_content(const struct wgt_desc *desc)
+{
+ return for_all_content(desc, check_one_content);
+}
+
+static int check_widget(const struct wgt_desc *desc)
+{
+ int result;
+
+ result = check_temporary_constraints(desc);
+ if (result >= 0)
+ result = check_permissions(desc);
+ if (result >= 0)
+ result = check_content(desc);
+ return result;
+}
+
+static int get_target_directory(char target[PATH_MAX], const char *root, const struct wgt_desc *desc)
{
- char newdir[PATH_MAX];
int rc;
- rc = snprintf(newdir, sizeof newdir, "%s/%s/%s", root, desc->id, desc->ver);
- if (rc >= (int)sizeof newdir) {
- ERROR("path too long in move_widget");
+#if DISTINCT_VERSIONS
+ rc = snprintf(target, PATH_MAX, "%s/%s/%s", root, desc->id, desc->ver);
+#else
+ rc = snprintf(target, PATH_MAX, "%s/%s", root, desc->id);
+#endif
+ if (rc < PATH_MAX)
+ rc = 0;
+ else {
+ ERROR("path too long");
errno = EINVAL;
- return -1;
+ rc = -1;
}
+ return rc;
+}
- return move_workdir(newdir, 1, force);
+static int move_widget_to(const char *destdir, int force)
+{
+ return move_workdir(destdir, 1, force);
}
static int install_icon(const struct wgt_desc *desc)
char target[PATH_MAX];
int rc;
+ if (!desc->icons)
+ return 0;
+
create_directory(FWK_ICON_DIR, 0755, 1);
rc = snprintf(link, sizeof link, "%s/%s", FWK_ICON_DIR, desc->idaver);
if (rc >= (int)sizeof link) {
static int install_exec_flag(const struct wgt_desc *desc)
{
- int i;
+ return for_all_content(desc, set_exec_flag);
+}
- if (desc->content_type) {
- i = sizeof exec_type_strings / sizeof *exec_type_strings;
- while (i) {
- if (!strcasecmp(desc->content_type, exec_type_strings[--i]))
- return fchmodat(workdirfd, desc->content_src, 0755, 0);
+static int install_file_properties(const struct wgt_desc *desc)
+{
+ int rc, rc2;
+ struct wgt_desc_feature *feat;
+ struct wgt_desc_param *param;
+
+ rc = 0;
+ feat = desc->features;
+ while (feat) {
+ if (!strcmp(feat->name, FWK_PREFIX"widget:file-properties")) {
+ param = feat->params;
+ while (param) {
+ if (!strcmp(param->value, "executable")) {
+ rc2 = fchmodat(workdirfd, param->name, 0755, 0);
+ if (rc2 < 0)
+ ERROR("can't make executable the file %s: %m", param->name);
+ } else {
+ ERROR("unknown file property %s for %s", param->value, param->name);
+ errno = EINVAL;
+ rc2 = -1;
+ }
+ if (rc2 < 0 && !rc)
+ rc = rc2;
+ param = param->next;
+ }
}
+ feat = feat->next;
}
- return 0;
+ return rc;
}
static int install_security(const struct wgt_desc *desc)
}
len--;
*head++ = '/';
- icon = desc->icons->src;
- lic = (unsigned)strlen(icon);
+ icon = desc->icons ? desc->icons->src : NULL;
+ lic = (unsigned)(icon ? strlen(icon) : 0);
n = file_count();
i = 0;
while(i < n) {
goto error2;
}
strcpy(head, f->name);
- if (lf <= lic && !memcmp(f->name, icon, lf) && (!f->name[lf] || f->name[lf] == '/'))
+ if (lf <= lic && icon && !memcmp(f->name, icon, lf) && (!f->name[lf] || f->name[lf] == '/'))
rc = secmgr_path_public_read_only(path);
else
rc = secmgr_path_read_only(path);
perm = first_usable_permission();
while(perm) {
rc = secmgr_permit(perm);
+ INFO("permitting %s %s", perm, rc ? "FAILED!" : "success");
if (rc)
goto error2;
perm = next_usable_permission();
}
+ /* install default permissions */
+ n = (unsigned int)(sizeof default_permissions / sizeof *default_permissions);
+ for (i = 0 ; i < n ; i++) {
+ perm = default_permissions[i];
+ rc = secmgr_permit(perm);
+ INFO("permitting %s %s", perm, rc ? "FAILED!" : "success");
+ if (rc)
+ goto error2;
+ }
+
rc = secmgr_install();
return rc;
error2:
{
struct wgt_info *ifo;
const struct wgt_desc *desc;
+ char installdir[PATH_MAX];
+ int err, rc;
+ struct unitconf uconf;
NOTICE("-- INSTALLING widget %s to %s --", wgtfile, root);
if (zread(wgtfile, 0))
goto error2;
- if (check_all_signatures())
+#if defined(ALLOW_NO_SIGNATURE)
+ rc = check_all_signatures(1);
+#else
+ rc = check_all_signatures(0);
+#endif
+ if (rc)
goto error2;
ifo = wgt_info_createat(workdirfd, NULL, 1, 1, 1);
if (check_widget(desc))
goto error3;
- if (move_widget(root, desc, force))
+ if (get_target_directory(installdir, root, desc))
goto error3;
- if (install_icon(desc))
+ if (access(installdir, F_OK) == 0) {
+ if (!force) {
+ ERROR("widget already installed");
+ errno = EEXIST;
+ goto error3;
+ }
+ if (uninstall_widget(desc->idaver, root))
+ goto error3;
+ }
+
+ if (move_widget_to(installdir, force))
goto error3;
- if (install_exec_flag(desc))
+ if (install_icon(desc))
goto error3;
if (install_security(desc))
- goto error3;
+ goto error4;
+
+ if (install_exec_flag(desc))
+ goto error4;
+
+ if (install_file_properties(desc))
+ goto error4;
+
+ uconf.installdir = installdir;
+ uconf.icondir = FWK_ICON_DIR;
+ uconf.new_afid = get_new_afid;
+ uconf.base_http_ports = HTTP_PORT_BASE;
+ if (unit_install(ifo, &uconf))
+ goto error4;
file_reset();
return ifo;
+error4:
+ /* TODO: cleanup */
+
error3:
wgt_info_unref(ifo);
error2:
+ err = errno;
remove_workdir();
+ errno = err;
error1:
file_reset();
Code Review / src / app-framework-main.git / blobdiff