147 lines
5.7 KiB
Diff
147 lines
5.7 KiB
Diff
From 236a05e16c5880e47b1e52a3ece2f9d77b628b49 Mon Sep 17 00:00:00 2001
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From: Richard Hughes <richard@hughsie.com>
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Date: Fri, 21 Feb 2020 13:42:55 +0000
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Subject: [PATCH] Fix crash when viewing application details
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The code was creating an array of guint32 and reading back an array of gint
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which caused a crazy histogram and an invalid read in some circumstances.
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Standardize to reading and writing a guint32 everywhere and make the code
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somewhat simpler.
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Fixes https://gitlab.gnome.org/GNOME/gnome-software/issues/928
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---
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lib/gs-app.c | 8 +++---
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src/gs-details-page.c | 4 +--
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src/gs-review-histogram.c | 53 +++++++++++++++++++++------------------
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3 files changed, 35 insertions(+), 30 deletions(-)
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diff --git a/lib/gs-app.c b/lib/gs-app.c
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index b7830009..5bc93fd1 100644
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--- a/lib/gs-app.c
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+++ b/lib/gs-app.c
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@@ -580,8 +580,8 @@ gs_app_to_string_append (GsApp *app, GString *str)
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gs_app_kv_printf (str, "rating", "%i", priv->rating);
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if (priv->review_ratings != NULL) {
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for (i = 0; i < priv->review_ratings->len; i++) {
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- gint rat = g_array_index (priv->review_ratings, gint, i);
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- gs_app_kv_printf (str, "review-rating", "[%u:%i]",
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+ guint32 rat = g_array_index (priv->review_ratings, guint32, i);
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+ gs_app_kv_printf (str, "review-rating", "[%u:%u]",
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i, rat);
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}
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}
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@@ -2881,7 +2881,7 @@ gs_app_set_rating (GsApp *app, gint rating)
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*
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* Gets the review ratings.
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*
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- * Returns: (element-type gint) (transfer none): a list
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+ * Returns: (element-type guint32) (transfer none): a list
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*
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* Since: 3.22
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**/
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@@ -2896,7 +2896,7 @@ gs_app_get_review_ratings (GsApp *app)
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/**
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* gs_app_set_review_ratings:
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* @app: a #GsApp
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- * @review_ratings: (element-type gint): a list
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+ * @review_ratings: (element-type guint32): a list
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*
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* Sets the review ratings.
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*
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diff --git a/src/gs-details-page.c b/src/gs-details-page.c
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index 4dd88a1e..8eb07bd3 100644
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--- a/src/gs-details-page.c
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+++ b/src/gs-details-page.c
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@@ -1565,7 +1565,7 @@ gs_details_page_refresh_reviews (GsDetailsPage *self)
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}
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if (review_ratings != NULL) {
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for (i = 0; i < review_ratings->len; i++)
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- n_reviews += (guint) g_array_index (review_ratings, gint, i);
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+ n_reviews += (guint) g_array_index (review_ratings, guint32, i);
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} else if (gs_app_get_reviews (self->app) != NULL) {
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n_reviews = gs_app_get_reviews (self->app)->len;
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}
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@@ -1574,7 +1574,7 @@ gs_details_page_refresh_reviews (GsDetailsPage *self)
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/* enable appropriate widgets */
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gtk_widget_set_visible (self->star, show_reviews);
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gtk_widget_set_visible (self->box_reviews, show_reviews);
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- gtk_widget_set_visible (self->histogram, review_ratings != NULL);
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+ gtk_widget_set_visible (self->histogram, review_ratings != NULL && review_ratings->len > 0);
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gtk_widget_set_visible (self->label_review_count, n_reviews > 0);
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/* update the review label next to the star widget */
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diff --git a/src/gs-review-histogram.c b/src/gs-review-histogram.c
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index bbd297c8..21455f55 100644
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--- a/src/gs-review-histogram.c
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+++ b/src/gs-review-histogram.c
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@@ -39,36 +39,41 @@ void
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gs_review_histogram_set_ratings (GsReviewHistogram *histogram,
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GArray *review_ratings)
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{
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- GsReviewHistogramPrivate *priv;
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- gdouble max;
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- gint count[5] = { 0, 0, 0, 0, 0 };
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- guint i;
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+ GsReviewHistogramPrivate *priv = gs_review_histogram_get_instance_private (histogram);
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+ gdouble fraction[6] = { 0.0f };
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+ guint32 max = 0;
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+ guint32 total = 0;
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g_return_if_fail (GS_IS_REVIEW_HISTOGRAM (histogram));
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- priv = gs_review_histogram_get_instance_private (histogram);
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- /* Scale to maximum value */
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- for (max = 0, i = 0; i < review_ratings->len; i++) {
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- gint c;
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+ /* sanity check */
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+ if (review_ratings->len != 6) {
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+ g_warning ("ratings data incorrect expected 012345");
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+ return;
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+ }
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- c = g_array_index (review_ratings, gint, i);
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- if (c > max)
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- max = c;
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- if (i > 0 && i < 6)
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- count[i - 1] = c;
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+ /* idx 0 is '0 stars' which we don't support in the UI */
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+ for (guint i = 1; i < review_ratings->len; i++) {
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+ guint32 c = g_array_index (review_ratings, guint32, i);
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+ max = MAX (c, max);
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+ }
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+ for (guint i = 1; i < review_ratings->len; i++) {
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+ guint32 c = g_array_index (review_ratings, guint32, i);
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+ fraction[i] = max > 0 ? (gdouble) c / (gdouble) max : 0.f;
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+ total += c;
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}
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- gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar5), count[4] / max);
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- set_label (priv->label_count5, count[4]);
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- gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar4), count[3] / max);
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- set_label (priv->label_count4, count[3]);
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- gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar3), count[2] / max);
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- set_label (priv->label_count3, count[2]);
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- gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar2), count[1] / max);
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- set_label (priv->label_count2, count[1]);
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- gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar1), count[0] / max);
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- set_label (priv->label_count1, count[0]);
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- set_label (priv->label_total, count[0] + count[1] + count[2] + count[3] + count[4]);
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+ gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar5), fraction[5]);
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+ set_label (priv->label_count5, g_array_index (review_ratings, guint, 5));
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+ gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar4), fraction[4]);
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+ set_label (priv->label_count4, g_array_index (review_ratings, guint, 4));
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+ gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar3), fraction[3]);
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+ set_label (priv->label_count3, g_array_index (review_ratings, guint, 3));
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+ gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar2), fraction[2]);
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+ set_label (priv->label_count2, g_array_index (review_ratings, guint, 2));
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+ gs_review_bar_set_fraction (GS_REVIEW_BAR (priv->bar1), fraction[1]);
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+ set_label (priv->label_count1, g_array_index (review_ratings, guint, 1));
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+ set_label (priv->label_total, total);
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}
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static void
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--
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2.24.1
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