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Review possible errors and document them

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Review all the possible errors and document them for each function.
This commit is contained in:
Bastien Nocera
2008-11-24 14:16:41 +00:00
committed by Daniel Drake
parent 1abf51afa4
commit 7b06c4b7f3
6 changed files with 100 additions and 57 deletions
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6
TODO
View File

@ -1,10 +1,6 @@
Identification
Image transfer
Enforce command sequences:
force VerifyStop after non-retry verify result comes in
etc
Verify PAM messages fit with GDM/gnome-screensaver
Register fprintd' po file with Transifex, Rosetta or the Translation Project
@ -19,5 +15,3 @@ reading for more than a certain amount of time.
Add POS use case
Review error cases, and possible errors

36
src/device.c
View File

@ -466,7 +466,7 @@ _fprint_device_check_polkit_for_action (FprintDevice *rdev, DBusGMethodInvocatio
if (pk_result != POLKIT_RESULT_YES) {
g_set_error (error, FPRINT_ERROR,
FPRINT_ERROR_INTERNAL,
FPRINT_ERROR_PERMISSION_DENIED,
"%s %s <-- (action, result)",
action,
polkit_result_to_string_representation (pk_result));
@ -522,7 +522,7 @@ _fprint_device_check_for_username (FprintDevice *rdev,
user = getpwuid (uid);
if (user == NULL) {
g_free (sender);
g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_CLAIM_DEVICE,
g_set_error(error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Failed to get information about user UID %lu", uid);
return NULL;
}
@ -644,7 +644,7 @@ static void dev_open_cb(struct fp_dev *dev, int status, void *user_data)
g_free (priv->sender);
priv->sender = NULL;
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_CLAIM_DEVICE,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Open failed with error %d", status);
dbus_g_method_return_error(session->context_claim_device, error);
return;
@ -665,7 +665,7 @@ static void fprint_device_claim(FprintDevice *rdev,
/* Is it already claimed? */
if (priv->sender != NULL) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_CLAIM_DEVICE,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_ALREADY_IN_USE,
"Device was already claimed");
dbus_g_method_return_error(context, error);
return;
@ -717,7 +717,7 @@ static void fprint_device_claim(FprintDevice *rdev,
g_free (priv->sender);
priv->sender = NULL;
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_CLAIM_DEVICE,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Could not attempt device open, error %d", r);
dbus_g_method_return_error(context, error);
}
@ -839,7 +839,7 @@ static void fprint_device_verify_start(FprintDevice *rdev,
prints = store.discover_prints(priv->ddev, priv->username);
if (prints == NULL) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ENROLLED_PRINTS,
"No fingerprints enrolled");
dbus_g_method_return_error(context, error);
return;
@ -854,8 +854,8 @@ static void fprint_device_verify_start(FprintDevice *rdev,
g_message ("adding finger %d to the gallery", GPOINTER_TO_INT (l->data));
r = store.print_data_load(priv->dev, GPOINTER_TO_INT (l->data),
&data, priv->username);
//FIXME r < 0 ?
g_ptr_array_add (array, data);
if (r == 0)
g_ptr_array_add (array, data);
}
data = NULL;
@ -873,7 +873,7 @@ static void fprint_device_verify_start(FprintDevice *rdev,
if (fp_dev_supports_identification(priv->dev) && finger_num == -1) {
if (gallery == NULL) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ENROLLED_PRINTS,
"No fingerprints on that device");
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -893,7 +893,7 @@ static void fprint_device_verify_start(FprintDevice *rdev,
&data, priv->username);
if (r < 0 || !data) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"No such print %d", finger_num);
dbus_g_method_return_error(context, error);
return;
@ -918,7 +918,7 @@ static void fprint_device_verify_start(FprintDevice *rdev,
fp_print_data_free(gallery[i]);
g_free (gallery);
}
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_VERIFY_START,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Verify start failed with error %d", r);
dbus_g_method_return_error(context, error);
return;
@ -959,7 +959,7 @@ static void fprint_device_verify_stop(FprintDevice *rdev,
} else if (priv->current_action == ACTION_IDENTIFY) {
r = fp_async_identify_stop(priv->dev, identify_stop_cb, context);
} else {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_VERIFY_STOP,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ACTION_IN_PROGRESS,
"No verification in progress");
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -967,7 +967,7 @@ static void fprint_device_verify_stop(FprintDevice *rdev,
}
if (r < 0) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_VERIFY_STOP,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Verify stop failed with error %d", r);
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -1009,7 +1009,7 @@ static void fprint_device_enroll_start(FprintDevice *rdev,
int r;
if (finger_num == -1) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_SUCH_LOADED_PRINT,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INVALID_FINGERNAME,
"Invalid print name");
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -1044,7 +1044,7 @@ static void fprint_device_enroll_start(FprintDevice *rdev,
r = fp_async_enroll_start(priv->dev, enroll_stage_cb, rdev);
if (r < 0) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_ENROLL_START,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Enroll start failed with error %d", r);
dbus_g_method_return_error(context, error);
return;
@ -1078,7 +1078,7 @@ static void fprint_device_enroll_stop(FprintDevice *rdev,
}
if (priv->current_action != ACTION_ENROLL) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_ENROLL_STOP,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ACTION_IN_PROGRESS,
"No enrollment in progress");
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -1087,7 +1087,7 @@ static void fprint_device_enroll_stop(FprintDevice *rdev,
r = fp_async_enroll_stop(priv->dev, enroll_stop_cb, context);
if (r < 0) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_ENROLL_STOP,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_INTERNAL,
"Enroll stop failed with error %d", r);
dbus_g_method_return_error(context, error);
g_error_free (error);
@ -1131,7 +1131,7 @@ static void fprint_device_list_enrolled_fingers(FprintDevice *rdev,
prints = store.discover_prints(priv->ddev, user);
g_free (user);
if (!prints) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_DISCOVER_PRINTS,
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ENROLLED_PRINTS,
"Failed to discover prints");
dbus_g_method_return_error(context, error);
return;

74
src/device.xml
View File

@ -1,4 +1,15 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE node PUBLIC
"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd" [
<!ENTITY ERROR_CLAIM_DEVICE "net.reactivated.Fprint.Error.ClaimDevice">
<!ENTITY ERROR_ALREADY_IN_USE "net.reactivated.Fprint.Error.AlreadyInUse">
<!ENTITY ERROR_INTERNAL "net.reactivated.Fprint.Error.Internal">
<!ENTITY ERROR_PERMISSION_DENIED "net.reactivated.Fprint.Error.PermissionDenied">
<!ENTITY ERROR_NO_ENROLLED_PRINTS "net.reactivated.Fprint.Error.NoEnrolledPrints">
<!ENTITY ERROR_NO_ACTION_IN_PROGRESS "net.reactivated.Fprint.Error.NoActionInProgress">
<!ENTITY ERROR_INVALID_FINGERNAME "net.reactivated.Fprint.Error.InvalidFingername">
]>
<node name="/" xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd">
<interface name="net.reactivated.Fprint.Device">
<annotation name="org.freedesktop.DBus.GLib.CSymbol"
@ -256,6 +267,11 @@
List all the enrolled fingerprints for the chosen user.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_NO_ENROLLED_PRINTS;">if the chosen user doesn't have any fingerprints enrolled</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -273,6 +289,10 @@
Delete all the enrolled fingerprints for the chosen user.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -290,6 +310,12 @@
Claim the device for the chosen user.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_ALREADY_IN_USE;">if the device is already claimed</doc:error>
<doc:error name="&ERROR_INTERNAL;">if the device couldn't be claimed</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -304,6 +330,11 @@
Release a device claimed with <doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_CLAIM_DEVICE;">if the device was not claimed</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -319,9 +350,19 @@
<doc:description>
<doc:para>
Check the chosen finger against a saved fingerprint. You need to have claimed the device using
<doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref>.
<doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref>. The finger selected is sent to the front-end
using <doc:ref type="signal" to="Device::VerifyFingerSelected">Device::VerifyFingerSelected</doc:ref> and
verification status through <doc:ref type="signal" to="Device::VerifyStatus">Device::VerifyStatus</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_CLAIM_DEVICE;">if the device was not claimed</doc:error>
<doc:error name="&ERROR_ALREADY_IN_USE;">if the device was already being used</doc:error>
<doc:error name="&ERROR_NO_ENROLLED_PRINTS;">if there are no enrolled prints for the chosen user</doc:error>
<doc:error name="&ERROR_INTERNAL;">if there was an internal error</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -336,6 +377,13 @@
Stop an on-going fingerprint verification started with <doc:ref type="method" to="Device.VerifyStart">Device.VerifyStart</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_CLAIM_DEVICE;">if the device was not claimed</doc:error>
<doc:error name="&ERROR_NO_ACTION_IN_PROGRESS;">if there was no ongoing verification</doc:error>
<doc:error name="&ERROR_INTERNAL;">if there was an internal error</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -364,7 +412,7 @@
<arg type="s" name="result">
<doc:doc>
<doc:summary>
A string representing the status of the verification status.
A string representing the status of the verification.
</doc:summary>
</doc:doc>
</arg>
@ -399,9 +447,18 @@
<doc:para>
Start enrollemnt for the selected finger. You need to have claimed the device using
<doc:ref type="method" to="Device.Claim">Device.Claim</doc:ref> before calling
this method.
this method. Enrollment status is sent through <doc:ref type="signal" to="Device::EnrollStatus">Device::EnrollStatus</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_CLAIM_DEVICE;">if the device was not claimed</doc:error>
<doc:error name="&ERROR_ALREADY_IN_USE;">if the device was already being used</doc:error>
<doc:error name="&ERROR_INVALID_FINGERNAME;">if there are no enrolled prints for the chosen user</doc:error>
<doc:error name="&ERROR_INTERNAL;">if there was an internal error</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -416,6 +473,13 @@
Stop an on-going fingerprint enrollment started with <doc:ref type="method" to="Device.EnrollStart">Device.EnrollStart</doc:ref>.
</doc:para>
</doc:description>
<doc:errors>
<doc:error name="&ERROR_PERMISSION_DENIED;">if the caller lacks the appropriate PolicyKit authorization</doc:error>
<doc:error name="&ERROR_CLAIM_DEVICE;">if the device was not claimed</doc:error>
<doc:error name="&ERROR_NO_ACTION_IN_PROGRESS;">if there was no ongoing verification</doc:error>
<doc:error name="&ERROR_INTERNAL;">if there was an internal error</doc:error>
</doc:errors>
</doc:doc>
</method>
@ -425,7 +489,7 @@
<arg type="s" name="result">
<doc:doc>
<doc:summary>
A string representing the status of the enrollment status.
A string representing the status of the enrollment.
</doc:summary>
</doc:doc>
</arg>

5
src/file_storage.c
View File

@ -257,11 +257,7 @@ static GSList *scan_dev_storedir(char *devpath, uint16_t driver_id,
GSList *file_storage_discover_prints(struct fp_dscv_dev *dev, const char *username)
{
//GDir *dir;
//const gchar *ent;
//GError *err = NULL;
GSList *list = NULL;
//GSList *elem;
char *base_store = NULL;
char *storedir = NULL;
int r;
@ -276,7 +272,6 @@ GSList *file_storage_discover_prints(struct fp_dscv_dev *dev, const char *userna
storedir = get_path_to_storedir(fp_driver_get_driver_id(fp_dscv_dev_get_driver(dev)),
fp_dscv_dev_get_devtype(dev), base_store);
g_message("Entering %s", storedir);
list = scan_dev_storedir(storedir, fp_driver_get_driver_id(fp_dscv_dev_get_driver(dev)),
fp_dscv_dev_get_devtype(dev), list);

19
src/fprintd.h
View File

@ -36,18 +36,13 @@ GType fprint_error_get_type(void);
#define FPRINT_TYPE_ERROR fprint_error_get_type()
#define FPRINT_ERROR_DBUS_INTERFACE "net.reactivated.Fprint.Error"
typedef enum {
FPRINT_ERROR_INTERNAL,
FPRINT_ERROR_ALREADY_IN_USE,
FPRINT_ERROR_DISCOVER_PRINTS,
FPRINT_ERROR_PRINT_NOT_FOUND,
FPRINT_ERROR_PRINT_LOAD,
FPRINT_ERROR_NO_SUCH_LOADED_PRINT,
FPRINT_ERROR_CLAIM_DEVICE,
FPRINT_ERROR_VERIFY_START,
FPRINT_ERROR_VERIFY_STOP,
FPRINT_ERROR_ENROLL_START,
FPRINT_ERROR_ENROLL_STOP,
FPRINT_ERROR_FAILED,
FPRINT_ERROR_CLAIM_DEVICE, /* developer didn't claim the device */
FPRINT_ERROR_ALREADY_IN_USE, /* device is already claimed by somebody else */
FPRINT_ERROR_INTERNAL, /* internal error occured */
FPRINT_ERROR_PERMISSION_DENIED, /* PolicyKit refused the action */
FPRINT_ERROR_NO_ENROLLED_PRINTS, /* No prints are enrolled */
FPRINT_ERROR_NO_ACTION_IN_PROGRESS, /* No actions currently in progress */
FPRINT_ERROR_INVALID_FINGERNAME, /* the finger name passed was invalid */
} FprintError;
/* Manager */

17
src/manager.c
View File

@ -207,18 +207,13 @@ fprint_error_get_type (void)
if (etype == 0) {
static const GEnumValue values[] =
{
ENUM_ENTRY (FPRINT_ERROR_INTERNAL, "Internal"),
ENUM_ENTRY (FPRINT_ERROR_ALREADY_IN_USE, "InUse"),
ENUM_ENTRY (FPRINT_ERROR_DISCOVER_PRINTS, "DiscoverPrints"),
ENUM_ENTRY (FPRINT_ERROR_PRINT_NOT_FOUND, "PrintNotFound"),
ENUM_ENTRY (FPRINT_ERROR_PRINT_LOAD, "PrintLoad"),
ENUM_ENTRY (FPRINT_ERROR_NO_SUCH_LOADED_PRINT, "NoSuchLoadedPrint"),
ENUM_ENTRY (FPRINT_ERROR_CLAIM_DEVICE, "ClaimDevice"),
ENUM_ENTRY (FPRINT_ERROR_VERIFY_START, "VerifyStart"),
ENUM_ENTRY (FPRINT_ERROR_VERIFY_STOP, "VerifyStop"),
ENUM_ENTRY (FPRINT_ERROR_ENROLL_START, "EnrollStart"),
ENUM_ENTRY (FPRINT_ERROR_ENROLL_STOP, "EnrollStop"),
ENUM_ENTRY (FPRINT_ERROR_FAILED, "Failed"),
ENUM_ENTRY (FPRINT_ERROR_ALREADY_IN_USE, "AlreadyInUse"),
ENUM_ENTRY (FPRINT_ERROR_INTERNAL, "Internal"),
ENUM_ENTRY (FPRINT_ERROR_PERMISSION_DENIED, "PermissionDenied"),
ENUM_ENTRY (FPRINT_ERROR_NO_ENROLLED_PRINTS, "NoEnrolledPrints"),
ENUM_ENTRY (FPRINT_ERROR_NO_ACTION_IN_PROGRESS, "NoActionInProgress"),
ENUM_ENTRY (FPRINT_ERROR_INVALID_FINGERNAME, "InvalidFingername"),
{ 0, 0, 0 }
};
etype = g_enum_register_static ("FprintError", values);