Add LocalFileSigLevel and RemoteFileSigLevel to control the signature
checking for "pacman -U <file>" and "pacman -U <url>" operations
respectively. The starting value for both these options is SigLevel,
if it is specified in the [options] section, or the built-in system
default. The specified values override and/or supplement this initial
value. Note there is no destintion between setting "Required" and
"PackageRequired" as there is not database options for Upgrade
operations.

Signed-off-by: Allan McRae <[email protected]>
---

This patch has been floating around for quite some time now.  I would like some 
final
comments before I write the documentation and push.

I have this in my pacman.conf:

SigLevel    = Required DatabaseOptional TrustedOnly
LocalFileSigLevel = Optional TrustedOnly
#RemoteFileSigLevel = Required

so if I "pacman -U /path/to/file", a signature is only checked if it is 
present, but
"pacman -U http://...."; always checks the signature.  It also means that I do 
not need
have my global SigLevel as Optional and add PackageRequired to every Arch repo.

I'd like a comment, even if it is a simple "Ack".


 lib/libalpm/alpm.h   |  9 +++++++++
 lib/libalpm/handle.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
 lib/libalpm/handle.h |  4 ++++
 src/pacman/conf.c    | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/pacman/conf.h    |  2 ++
 src/pacman/upgrade.c | 21 ++++++++++++++++++---
 6 files changed, 131 insertions(+), 9 deletions(-)

diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index f524c19..b681840 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -115,6 +115,9 @@ typedef enum _alpm_siglevel_t {
        ALPM_SIG_DATABASE_MARGINAL_OK = (1 << 12),
        ALPM_SIG_DATABASE_UNKNOWN_OK = (1 << 13),
 
+       ALPM_SIG_PACKAGE_SET = (1 << 27),
+       ALPM_SIG_PACKAGE_TRUST_SET = (1 << 28),
+
        ALPM_SIG_USE_DEFAULT = (1 << 31)
 } alpm_siglevel_t;
 
@@ -561,6 +564,12 @@ int alpm_option_set_checkspace(alpm_handle_t *handle, int 
checkspace);
 alpm_siglevel_t alpm_option_get_default_siglevel(alpm_handle_t *handle);
 int alpm_option_set_default_siglevel(alpm_handle_t *handle, alpm_siglevel_t 
level);
 
+alpm_siglevel_t alpm_option_get_local_file_siglevel(alpm_handle_t *handle);
+int alpm_option_set_local_file_siglevel(alpm_handle_t *handle, alpm_siglevel_t 
level);
+
+alpm_siglevel_t alpm_option_get_remote_file_siglevel(alpm_handle_t *handle);
+int alpm_option_set_remote_file_siglevel(alpm_handle_t *handle, 
alpm_siglevel_t level);
+
 /** @} */
 
 /** @addtogroup alpm_api_databases Database Functions
diff --git a/lib/libalpm/handle.c b/lib/libalpm/handle.c
index 1a840ab..53c86c5 100644
--- a/lib/libalpm/handle.c
+++ b/lib/libalpm/handle.c
@@ -594,6 +594,18 @@ int SYMEXPORT alpm_option_set_deltaratio(alpm_handle_t 
*handle, double ratio)
        return 0;
 }
 
+alpm_db_t SYMEXPORT *alpm_get_localdb(alpm_handle_t *handle)
+{
+       CHECK_HANDLE(handle, return NULL);
+       return handle->db_local;
+}
+
+alpm_list_t SYMEXPORT *alpm_get_syncdbs(alpm_handle_t *handle)
+{
+       CHECK_HANDLE(handle, return NULL);
+       return handle->dbs_sync;
+}
+
 int SYMEXPORT alpm_option_set_checkspace(alpm_handle_t *handle, int checkspace)
 {
        CHECK_HANDLE(handle, return -1);
@@ -621,16 +633,44 @@ alpm_siglevel_t SYMEXPORT 
alpm_option_get_default_siglevel(alpm_handle_t *handle
        return handle->siglevel;
 }
 
-alpm_db_t SYMEXPORT *alpm_get_localdb(alpm_handle_t *handle)
+int SYMEXPORT alpm_option_set_local_file_siglevel(alpm_handle_t *handle,
+               alpm_siglevel_t level)
 {
-       CHECK_HANDLE(handle, return NULL);
-       return handle->db_local;
+       CHECK_HANDLE(handle, return -1);
+#ifdef HAVE_LIBGPGME
+       handle->localfilesiglevel = level;
+#else
+       if(level != 0 && level != ALPM_SIG_USE_DEFAULT) {
+               RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1);
+       }
+#endif
+       return 0;
 }
 
-alpm_list_t SYMEXPORT *alpm_get_syncdbs(alpm_handle_t *handle)
+alpm_siglevel_t SYMEXPORT alpm_option_get_local_file_siglevel(alpm_handle_t 
*handle)
 {
-       CHECK_HANDLE(handle, return NULL);
-       return handle->dbs_sync;
+       CHECK_HANDLE(handle, return -1);
+       return handle->localfilesiglevel;
+}
+
+int SYMEXPORT alpm_option_set_remote_file_siglevel(alpm_handle_t *handle,
+               alpm_siglevel_t level)
+{
+       CHECK_HANDLE(handle, return -1);
+#ifdef HAVE_LIBGPGME
+       handle->remotefilesiglevel = level;
+#else
+       if(level != 0 && level != ALPM_SIG_USE_DEFAULT) {
+               RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1);
+       }
+#endif
+       return 0;
+}
+
+alpm_siglevel_t SYMEXPORT alpm_option_get_remote_file_siglevel(alpm_handle_t 
*handle)
+{
+       CHECK_HANDLE(handle, return -1);
+       return handle->remotefilesiglevel;
 }
 
 /* vim: set ts=2 sw=2 noet: */
diff --git a/lib/libalpm/handle.h b/lib/libalpm/handle.h
index c24e97a..5e84d58 100644
--- a/lib/libalpm/handle.h
+++ b/lib/libalpm/handle.h
@@ -92,6 +92,10 @@ struct __alpm_handle_t {
        int usesyslog;           /* Use syslog instead of logfile? */ /* TODO 
move to frontend */
        int checkspace;          /* Check disk space before installing */
        alpm_siglevel_t siglevel;   /* Default signature verification level */
+       alpm_siglevel_t localfilesiglevel;  /* Signature verification level for 
local file
+                                              upgrade operations */
+       alpm_siglevel_t remotefilesiglevel; /* Signature verification level for 
remote file
+                                              upgrade operations */
 
        /* error code */
        alpm_errno_t pm_errno;
diff --git a/src/pacman/conf.c b/src/pacman/conf.c
index 1bea2b0..95dce35 100644
--- a/src/pacman/conf.c
+++ b/src/pacman/conf.c
@@ -56,6 +56,8 @@ config_t *config_new(void)
        if(alpm_capabilities() & ALPM_CAPABILITY_SIGNATURES) {
                newconfig->siglevel = ALPM_SIG_PACKAGE | 
ALPM_SIG_PACKAGE_OPTIONAL |
                        ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL;
+               newconfig->localfilesiglevel = ALPM_SIG_USE_DEFAULT;
+               newconfig->remotefilesiglevel = ALPM_SIG_USE_DEFAULT;
        }
 
        return newconfig;
@@ -279,6 +281,7 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
                if(strcmp(value, "Never") == 0) {
                        if(package) {
                                level &= ~ALPM_SIG_PACKAGE;
+                               level |= ALPM_SIG_PACKAGE_SET;
                        }
                        if(database) {
                                level &= ~ALPM_SIG_DATABASE;
@@ -287,6 +290,7 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
                        if(package) {
                                level |= ALPM_SIG_PACKAGE;
                                level |= ALPM_SIG_PACKAGE_OPTIONAL;
+                               level |= ALPM_SIG_PACKAGE_SET;
                        }
                        if(database) {
                                level |= ALPM_SIG_DATABASE;
@@ -296,6 +300,7 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
                        if(package) {
                                level |= ALPM_SIG_PACKAGE;
                                level &= ~ALPM_SIG_PACKAGE_OPTIONAL;
+                               level |= ALPM_SIG_PACKAGE_SET;
                        }
                        if(database) {
                                level |= ALPM_SIG_DATABASE;
@@ -305,6 +310,7 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
                        if(package) {
                                level &= ~ALPM_SIG_PACKAGE_MARGINAL_OK;
                                level &= ~ALPM_SIG_PACKAGE_UNKNOWN_OK;
+                               level |= ALPM_SIG_PACKAGE_TRUST_SET;
                        }
                        if(database) {
                                level &= ~ALPM_SIG_DATABASE_MARGINAL_OK;
@@ -314,6 +320,7 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
                        if(package) {
                                level |= ALPM_SIG_PACKAGE_MARGINAL_OK;
                                level |= ALPM_SIG_PACKAGE_UNKNOWN_OK;
+                               level |= ALPM_SIG_PACKAGE_TRUST_SET;
                        }
                        if(database) {
                                level |= ALPM_SIG_DATABASE_MARGINAL_OK;
@@ -343,6 +350,30 @@ static int process_siglevel(alpm_list_t *values, 
alpm_siglevel_t *storage,
        return ret;
 }
 
+/**
+ * Merge the package entires of two signature verification levels.
+ * @param base initial siglevel
+ * @param over overridden siglevel, derived value is stored here
+ */
+static void merge_siglevel(alpm_siglevel_t *base, alpm_siglevel_t *over)
+{
+       alpm_siglevel_t level = *over;
+       if(level & ALPM_SIG_USE_DEFAULT) {
+               level = *base;
+       } else {
+               if(!(level & ALPM_SIG_PACKAGE_SET)) {
+                       level |= *base & ALPM_SIG_PACKAGE;
+                       level |= *base & ALPM_SIG_PACKAGE_OPTIONAL;
+               }
+               if(!(level & ALPM_SIG_PACKAGE_TRUST_SET)) {
+                       level |= *base & ALPM_SIG_PACKAGE_MARGINAL_OK;
+                       level |= *base & ALPM_SIG_PACKAGE_UNKNOWN_OK;
+               }
+       }
+
+       *over = level;
+}
+
 static int process_cleanmethods(alpm_list_t *values,
                const char *file, int linenum)
 {
@@ -484,6 +515,22 @@ static int _parse_options(const char *key, char *value,
                                return 1;
                        }
                        FREELIST(values);
+               } else if(strcmp(key, "LocalFileSigLevel") == 0) {
+                       alpm_list_t *values = NULL;
+                       setrepeatingoption(value, "LocalFileSigLevel", &values);
+                       if(process_siglevel(values, &config->localfilesiglevel, 
file, linenum)) {
+                               FREELIST(values);
+                               return 1;
+                       }
+                       FREELIST(values);
+               } else if(strcmp(key, "RemoteFileSigLevel") == 0) {
+                       alpm_list_t *values = NULL;
+                       setrepeatingoption(value, "RemoteFileSigLevel", 
&values);
+                       if(process_siglevel(values, 
&config->remotefilesiglevel, file, linenum)) {
+                               FREELIST(values);
+                               return 1;
+                       }
+                       FREELIST(values);
                } else {
                        pm_printf(ALPM_LOG_WARNING,
                                        _("config file %s, line %d: directive 
'%s' in section '%s' not recognized.\n"),
@@ -606,6 +653,11 @@ static int setup_libalpm(void)
 
        alpm_option_set_default_siglevel(handle, config->siglevel);
 
+       merge_siglevel(&config->siglevel, &config->localfilesiglevel);
+       merge_siglevel(&config->siglevel, &config->remotefilesiglevel);
+       alpm_option_set_local_file_siglevel(handle, config->localfilesiglevel);
+       alpm_option_set_remote_file_siglevel(handle, 
config->remotefilesiglevel);
+
        if(config->xfercommand) {
                alpm_option_set_fetchcb(handle, download_with_xfercommand);
        } else if(!(alpm_capabilities() & ALPM_CAPABILITY_DOWNLOADER)) {
diff --git a/src/pacman/conf.h b/src/pacman/conf.h
index 06d2fd5..ff099fe 100644
--- a/src/pacman/conf.h
+++ b/src/pacman/conf.h
@@ -73,6 +73,8 @@ typedef struct __config_t {
        unsigned int ask;
        alpm_transflag_t flags;
        alpm_siglevel_t siglevel;
+       alpm_siglevel_t localfilesiglevel;
+       alpm_siglevel_t remotefilesiglevel;
 
        /* conf file options */
        /* I Love Candy! */
diff --git a/src/pacman/upgrade.c b/src/pacman/upgrade.c
index 7f69091..222f7fa 100644
--- a/src/pacman/upgrade.c
+++ b/src/pacman/upgrade.c
@@ -40,8 +40,7 @@
 int pacman_upgrade(alpm_list_t *targets)
 {
        int retval = 0;
-       alpm_list_t *i;
-       alpm_siglevel_t level = 
alpm_option_get_default_siglevel(config->handle);
+       alpm_list_t *i, *remote = NULL;
 
        if(targets == NULL) {
                pm_printf(ALPM_LOG_ERROR, _("no targets specified (use -h for 
help)\n"));
@@ -51,6 +50,8 @@ int pacman_upgrade(alpm_list_t *targets)
        /* Check for URL targets and process them
         */
        for(i = targets; i; i = alpm_list_next(i)) {
+               int *r = malloc(sizeof(int));
+
                if(strstr(i->data, "://")) {
                        char *str = alpm_fetch_pkgurl(config->handle, i->data);
                        if(str == NULL) {
@@ -60,8 +61,13 @@ int pacman_upgrade(alpm_list_t *targets)
                        } else {
                                free(i->data);
                                i->data = str;
+                               *r = 1;
                        }
+               } else {
+                       *r = 0;
                }
+
+               remote = alpm_list_add(remote, r);
        }
 
        if(retval) {
@@ -75,9 +81,16 @@ int pacman_upgrade(alpm_list_t *targets)
 
        printf(_("loading packages...\n"));
        /* add targets to the created transaction */
-       for(i = targets; i; i = alpm_list_next(i)) {
+       for(i = targets; i; i = alpm_list_next(i), remote = 
alpm_list_next(remote)) {
                const char *targ = i->data;
                alpm_pkg_t *pkg;
+               alpm_siglevel_t level;
+
+               if(*(int *)remote->data) {
+                       level = 
alpm_option_get_remote_file_siglevel(config->handle);
+               } else {
+                       level = 
alpm_option_get_local_file_siglevel(config->handle);
+               }
 
                if(alpm_pkg_load(config->handle, targ, 1, level, &pkg) != 0) {
                        pm_printf(ALPM_LOG_ERROR, "'%s': %s\n",
@@ -95,6 +108,8 @@ int pacman_upgrade(alpm_list_t *targets)
                config->explicit_adds = alpm_list_add(config->explicit_adds, 
pkg);
        }
 
+       FREELIST(remote);
+
        if(retval) {
                trans_release();
                return retval;
-- 
1.8.1.1


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