diff options
Diffstat (limited to 'contrib/credential/gnome-keyring/git-credential-gnome-keyring.c')
| -rw-r--r-- | contrib/credential/gnome-keyring/git-credential-gnome-keyring.c | 342 |
1 files changed, 184 insertions, 158 deletions
diff --git a/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c index 41f61c5db3..2a317fca44 100644 --- a/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c +++ b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c @@ -25,135 +25,148 @@ #include <stdio.h> #include <string.h> -#include <stdarg.h> #include <stdlib.h> -#include <errno.h> +#include <glib.h> #include <gnome-keyring.h> -/* - * This credential struct and API is simplified from git's credential.{h,c} - */ -struct credential -{ - char *protocol; - char *host; - unsigned short port; - char *path; - char *username; - char *password; -}; +#ifdef GNOME_KEYRING_DEFAULT -#define CREDENTIAL_INIT \ - { NULL,NULL,0,NULL,NULL,NULL } + /* Modern gnome-keyring */ -void credential_init(struct credential *c); -void credential_clear(struct credential *c); -int credential_read(struct credential *c); -void credential_write(const struct credential *c); +#include <gnome-keyring-memory.h> -typedef int (*credential_op_cb)(struct credential*); +#else -struct credential_operation -{ - char *name; - credential_op_cb op; -}; + /* + * Support ancient gnome-keyring, circ. RHEL 5.X. + * GNOME_KEYRING_DEFAULT seems to have been introduced with Gnome 2.22, + * and the other features roughly around Gnome 2.20, 6 months before. + * Ubuntu 8.04 used Gnome 2.22 (I think). Not sure any distro used 2.20. + * So the existence/non-existence of GNOME_KEYRING_DEFAULT seems like + * a decent thing to use as an indicator. + */ -#define CREDENTIAL_OP_END \ - { NULL,NULL } +#define GNOME_KEYRING_DEFAULT NULL /* - * Table with operation callbacks is defined in concrete - * credential helper implementation and contains entries - * like { "get", function_to_get_credential } terminated - * by CREDENTIAL_OP_END. + * ancient gnome-keyring returns DENIED when an entry is not found. + * Setting NO_MATCH to DENIED will prevent us from reporting DENIED + * errors during get and erase operations, but we will still report + * DENIED errors during a store. */ -struct credential_operation const credential_helper_ops[]; +#define GNOME_KEYRING_RESULT_NO_MATCH GNOME_KEYRING_RESULT_DENIED -/* ---------------- common helper functions ----------------- */ +#define gnome_keyring_memory_alloc g_malloc +#define gnome_keyring_memory_free gnome_keyring_free_password +#define gnome_keyring_memory_strdup g_strdup -static inline void free_password(char *password) +static const char *gnome_keyring_result_to_message(GnomeKeyringResult result) { - char *c = password; - if (!password) - return; - - while (*c) *c++ = '\0'; - free(password); + switch (result) { + case GNOME_KEYRING_RESULT_OK: + return "OK"; + case GNOME_KEYRING_RESULT_DENIED: + return "Denied"; + case GNOME_KEYRING_RESULT_NO_KEYRING_DAEMON: + return "No Keyring Daemon"; + case GNOME_KEYRING_RESULT_ALREADY_UNLOCKED: + return "Already UnLocked"; + case GNOME_KEYRING_RESULT_NO_SUCH_KEYRING: + return "No Such Keyring"; + case GNOME_KEYRING_RESULT_BAD_ARGUMENTS: + return "Bad Arguments"; + case GNOME_KEYRING_RESULT_IO_ERROR: + return "IO Error"; + case GNOME_KEYRING_RESULT_CANCELLED: + return "Cancelled"; + case GNOME_KEYRING_RESULT_ALREADY_EXISTS: + return "Already Exists"; + default: + return "Unknown Error"; + } } -static inline void warning(const char *fmt, ...) +/* + * Support really ancient gnome-keyring, circ. RHEL 4.X. + * Just a guess for the Glib version. Glib 2.8 was roughly Gnome 2.12 ? + * Which was released with gnome-keyring 0.4.3 ?? + */ +#if GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION < 8 + +static void gnome_keyring_done_cb(GnomeKeyringResult result, gpointer user_data) { - va_list ap; + gpointer *data = (gpointer *)user_data; + int *done = (int *)data[0]; + GnomeKeyringResult *r = (GnomeKeyringResult *)data[1]; - va_start(ap, fmt); - fprintf(stderr, "warning: "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, "\n" ); - va_end(ap); + *r = result; + *done = 1; } -static inline void error(const char *fmt, ...) +static void wait_for_request_completion(int *done) { - va_list ap; - - va_start(ap, fmt); - fprintf(stderr, "error: "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, "\n" ); - va_end(ap); + GMainContext *mc = g_main_context_default(); + while (!*done) + g_main_context_iteration(mc, TRUE); } -static inline void die(const char *fmt, ...) +static GnomeKeyringResult gnome_keyring_item_delete_sync(const char *keyring, guint32 id) { - va_list ap; + int done = 0; + GnomeKeyringResult result; + gpointer data[] = { &done, &result }; - va_start(ap,fmt); - error(fmt, ap); - va_end(ap); - exit(EXIT_FAILURE); -} + gnome_keyring_item_delete(keyring, id, gnome_keyring_done_cb, data, + NULL); -static inline void die_errno(int err) -{ - error("%s", strerror(err)); - exit(EXIT_FAILURE); + wait_for_request_completion(&done); + + return result; } -static inline char *xstrdup(const char *str) -{ - char *ret = strdup(str); - if (!ret) - die_errno(errno); +#endif +#endif - return ret; -} +/* + * This credential struct and API is simplified from git's credential.{h,c} + */ +struct credential { + char *protocol; + char *host; + unsigned short port; + char *path; + char *username; + char *password; +}; + +#define CREDENTIAL_INIT { NULL, NULL, 0, NULL, NULL, NULL } + +typedef int (*credential_op_cb)(struct credential *); + +struct credential_operation { + char *name; + credential_op_cb op; +}; + +#define CREDENTIAL_OP_END { NULL, NULL } /* ----------------- GNOME Keyring functions ----------------- */ /* create a special keyring option string, if path is given */ -static char* keyring_object(struct credential *c) +static char *keyring_object(struct credential *c) { - char* object = NULL; - if (!c->path) - return object; + return NULL; - object = (char*) malloc(strlen(c->host)+strlen(c->path)+8); - if(!object) - die_errno(errno); + if (c->port) + return g_strdup_printf("%s:%hd/%s", c->host, c->port, c->path); - if(c->port) - sprintf(object,"%s:%hd/%s",c->host,c->port,c->path); - else - sprintf(object,"%s/%s",c->host,c->path); - - return object; + return g_strdup_printf("%s/%s", c->host, c->path); } -int keyring_get(struct credential *c) +static int keyring_get(struct credential *c) { - char* object = NULL; + char *object = NULL; GList *entries; GnomeKeyringNetworkPasswordData *password_data; GnomeKeyringResult result; @@ -173,7 +186,7 @@ int keyring_get(struct credential *c) c->port, &entries); - free(object); + g_free(object); if (result == GNOME_KEYRING_RESULT_NO_MATCH) return EXIT_SUCCESS; @@ -182,18 +195,18 @@ int keyring_get(struct credential *c) return EXIT_SUCCESS; if (result != GNOME_KEYRING_RESULT_OK) { - error("%s",gnome_keyring_result_to_message(result)); + g_critical("%s", gnome_keyring_result_to_message(result)); return EXIT_FAILURE; } /* pick the first one from the list */ - password_data = (GnomeKeyringNetworkPasswordData *) entries->data; + password_data = (GnomeKeyringNetworkPasswordData *)entries->data; - free_password(c->password); - c->password = xstrdup(password_data->password); + gnome_keyring_memory_free(c->password); + c->password = gnome_keyring_memory_strdup(password_data->password); if (!c->username) - c->username = xstrdup(password_data->user); + c->username = g_strdup(password_data->user); gnome_keyring_network_password_list_free(entries); @@ -201,10 +214,11 @@ int keyring_get(struct credential *c) } -int keyring_store(struct credential *c) +static int keyring_store(struct credential *c) { guint32 item_id; - char *object = NULL; + char *object = NULL; + GnomeKeyringResult result; /* * Sanity check that what we are storing is actually sensible. @@ -219,7 +233,7 @@ int keyring_store(struct credential *c) object = keyring_object(c); - gnome_keyring_set_network_password_sync( + result = gnome_keyring_set_network_password_sync( GNOME_KEYRING_DEFAULT, c->username, NULL /* domain */, @@ -231,13 +245,20 @@ int keyring_store(struct credential *c) c->password, &item_id); - free(object); + g_free(object); + + if (result != GNOME_KEYRING_RESULT_OK && + result != GNOME_KEYRING_RESULT_CANCELLED) { + g_critical("%s", gnome_keyring_result_to_message(result)); + return EXIT_FAILURE; + } + return EXIT_SUCCESS; } -int keyring_erase(struct credential *c) +static int keyring_erase(struct credential *c) { - char *object = NULL; + char *object = NULL; GList *entries; GnomeKeyringNetworkPasswordData *password_data; GnomeKeyringResult result; @@ -265,7 +286,7 @@ int keyring_erase(struct credential *c) c->port, &entries); - free(object); + g_free(object); if (result == GNOME_KEYRING_RESULT_NO_MATCH) return EXIT_SUCCESS; @@ -273,23 +294,21 @@ int keyring_erase(struct credential *c) if (result == GNOME_KEYRING_RESULT_CANCELLED) return EXIT_SUCCESS; - if (result != GNOME_KEYRING_RESULT_OK) - { - error("%s",gnome_keyring_result_to_message(result)); + if (result != GNOME_KEYRING_RESULT_OK) { + g_critical("%s", gnome_keyring_result_to_message(result)); return EXIT_FAILURE; } /* pick the first one from the list (delete all matches?) */ - password_data = (GnomeKeyringNetworkPasswordData *) entries->data; + password_data = (GnomeKeyringNetworkPasswordData *)entries->data; result = gnome_keyring_item_delete_sync( password_data->keyring, password_data->item_id); gnome_keyring_network_password_list_free(entries); - if (result != GNOME_KEYRING_RESULT_OK) - { - error("%s",gnome_keyring_result_to_message(result)); + if (result != GNOME_KEYRING_RESULT_OK) { + g_critical("%s", gnome_keyring_result_to_message(result)); return EXIT_FAILURE; } @@ -300,9 +319,8 @@ int keyring_erase(struct credential *c) * Table with helper operation callbacks, used by generic * credential helper main function. */ -struct credential_operation const credential_helper_ops[] = -{ - { "get", keyring_get }, +static struct credential_operation const credential_helper_ops[] = { + { "get", keyring_get }, { "store", keyring_store }, { "erase", keyring_erase }, CREDENTIAL_OP_END @@ -310,67 +328,70 @@ struct credential_operation const credential_helper_ops[] = /* ------------------ credential functions ------------------ */ -void credential_init(struct credential *c) +static void credential_init(struct credential *c) { memset(c, 0, sizeof(*c)); } -void credential_clear(struct credential *c) +static void credential_clear(struct credential *c) { - free(c->protocol); - free(c->host); - free(c->path); - free(c->username); - free_password(c->password); + g_free(c->protocol); + g_free(c->host); + g_free(c->path); + g_free(c->username); + gnome_keyring_memory_free(c->password); credential_init(c); } -int credential_read(struct credential *c) +static int credential_read(struct credential *c) { - char buf[1024]; - ssize_t line_len = 0; - char *key = buf; - char *value; + char *buf; + size_t line_len; + char *key; + char *value; - while (fgets(buf, sizeof(buf), stdin)) - { + key = buf = gnome_keyring_memory_alloc(1024); + + while (fgets(buf, 1024, stdin)) { line_len = strlen(buf); - if(buf[line_len-1]=='\n') - buf[--line_len]='\0'; + if (line_len && buf[line_len-1] == '\n') + buf[--line_len] = '\0'; - if(!line_len) + if (!line_len) break; - value = strchr(buf,'='); - if(!value) { - warning("invalid credential line: %s", key); + value = strchr(buf, '='); + if (!value) { + g_warning("invalid credential line: %s", key); + gnome_keyring_memory_free(buf); return -1; } *value++ = '\0'; if (!strcmp(key, "protocol")) { - free(c->protocol); - c->protocol = xstrdup(value); + g_free(c->protocol); + c->protocol = g_strdup(value); } else if (!strcmp(key, "host")) { - free(c->host); - c->host = xstrdup(value); - value = strrchr(c->host,':'); + g_free(c->host); + c->host = g_strdup(value); + value = strrchr(c->host, ':'); if (value) { *value++ = '\0'; c->port = atoi(value); } } else if (!strcmp(key, "path")) { - free(c->path); - c->path = xstrdup(value); + g_free(c->path); + c->path = g_strdup(value); } else if (!strcmp(key, "username")) { - free(c->username); - c->username = xstrdup(value); + g_free(c->username); + c->username = g_strdup(value); } else if (!strcmp(key, "password")) { - free_password(c->password); - c->password = xstrdup(value); - while (*value) *value++ = '\0'; + gnome_keyring_memory_free(c->password); + c->password = gnome_keyring_memory_strdup(value); + while (*value) + *value++ = '\0'; } /* * Ignore other lines; we don't know what they mean, but @@ -378,17 +399,20 @@ int credential_read(struct credential *c) * learn new lines, and the helpers are updated to match. */ } + + gnome_keyring_memory_free(buf); + return 0; } -void credential_write_item(FILE *fp, const char *key, const char *value) +static void credential_write_item(FILE *fp, const char *key, const char *value) { if (!value) return; fprintf(fp, "%s=%s\n", key, value); } -void credential_write(const struct credential *c) +static void credential_write(const struct credential *c) { /* only write username/password, if set */ credential_write_item(stdout, "username", c->username); @@ -398,16 +422,16 @@ void credential_write(const struct credential *c) static void usage(const char *name) { struct credential_operation const *try_op = credential_helper_ops; - const char *basename = strrchr(name,'/'); + const char *basename = strrchr(name, '/'); basename = (basename) ? basename + 1 : name; - fprintf(stderr, "Usage: %s <", basename); - while(try_op->name) { - fprintf(stderr,"%s",(try_op++)->name); - if(try_op->name) - fprintf(stderr,"%s","|"); + fprintf(stderr, "usage: %s <", basename); + while (try_op->name) { + fprintf(stderr, "%s", (try_op++)->name); + if (try_op->name) + fprintf(stderr, "%s", "|"); } - fprintf(stderr,"%s",">\n"); + fprintf(stderr, "%s", ">\n"); } int main(int argc, char *argv[]) @@ -415,23 +439,25 @@ int main(int argc, char *argv[]) int ret = EXIT_SUCCESS; struct credential_operation const *try_op = credential_helper_ops; - struct credential cred = CREDENTIAL_INIT; + struct credential cred = CREDENTIAL_INIT; if (!argv[1]) { usage(argv[0]); - goto out; + exit(EXIT_FAILURE); } + g_set_application_name("Git Credential Helper"); + /* lookup operation callback */ - while(try_op->name && strcmp(argv[1], try_op->name)) + while (try_op->name && strcmp(argv[1], try_op->name)) try_op++; /* unsupported operation given -- ignore silently */ - if(!try_op->name || !try_op->op) + if (!try_op->name || !try_op->op) goto out; ret = credential_read(&cred); - if(ret) + if (ret) goto out; /* perform credential operation */ |