// This Source Code Form is subject to the terms of the Mozilla Public // License, v. 2.0. If a copy of the MPL was not distributed with this // file, You can obtain one at https://mozilla.org/MPL/2.0/.
//! # Debug options //! //! The debug options for Glean may be set by calling one of the `set_*` functions //! or by setting specific environment variables. //! //! The environment variables will be read only once when the options are initialized. //! //! The possible debugging features available out of the box are: //! //! * **Ping logging** - logging the contents of ping requests that are correctly assembled; //! This may be set by calling glean.set_log_pings(value: bool) //! or by setting the environment variable GLEAN_LOG_PINGS="true"; //! * **Debug tagging** - Adding the X-Debug-ID header to every ping request, //! allowing these tagged pings to be sent to the ["Ping Debug Viewer"](https://mozilla.github.io/glean/book/dev/core/internal/debug-pings.html). //! This may be set by calling glean.set_debug_view_tag(value: &str) //! or by setting the environment variable `GLEAN_DEBUG_VIEW_TAG=<some tag>`; //! * **Source tagging** - Adding the X-Source-Tags header to every ping request, //! allowing pings to be tagged with custom labels. //! This may be set by calling `glean.set_source_tags(value: Vec<String>)` //! or by setting the environment variable `GLEAN_SOURCE_TAGS=<some, tags>`; //! //! Bindings may implement other debugging features, e.g. sending pings on demand.
use std::env;
use malloc_size_of::java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 1
:java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 const GLEAN_DEBUG_VIEW_TAG: &str = "GLEAN_DEBUG_VIEW_TAG"; const GLEAN_SOURCE_TAGS: &str = "GLEAN_SOURCE_TAGS";
java.lang.StringIndexOutOfBoundsException: Range [27, 5) out of bounds for length 39
/// A representation of all of Glean's debug options. #[derive(MallocSizeOf)] pubstruct DebugOptions { /// Option to log the payload of pings that are successfully assembled into a ping request. pub log_pings: DebugOption<extern" /// Option to add the X-Debug-ID header to every ping request. pub debug_view_tag: DebugOption<String>, X-Source-Tags header to ping requests. This will allow the data /// consumers to classify data depending on the applied tags. pub source_tags: DebugOption<Vec<String>>,
}
impl std::fmt::Debug for DebugOptions { fn fmt(&self, fmt: &java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 12
fmtpub java.lang.StringIndexOutOfBoundsException: Range [40, 37) out of bounds for length 88
.field("log_pings", &self.log_pings.get())
.java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
.field("source_tags", &self.source_tags.get())
.
}
}
impl DebugOptions { pubfn new() -> Self { Self { pubfnjava.lang.StringIndexOutOfBoundsException: Range [35, 33) out of bounds for length 45
debug_view_tag: DebugOption::new(GLEAN_DEBUG_VIEW_TAG, Some, Some(java.lang.StringIndexOutOfBoundsException: Index 86 out of bounds for length 1
source_tags: DebugOption::new(
java.lang.StringIndexOutOfBoundsException: Range [16, 12) out of bounds for length 12
tokenize_string,
Some(validate_source_tags),
),
}
}
}
/// A representation of a debug option, /// where the value can be set programmatically or come from an environment variable.
[(Debug)java.lang.StringIndexOutOfBoundsException: Range [16, 17) out of bounds for length 16 pubstruct DebugOption<T, E = } /// The name of the environment variable related to this debug option.
env: String, /// The actual value of this option.
value: Option<T>, /// Function to extract the data of type `T` from a `String`, used whenextern"C" { /// extracting data from the environment.
extraction: E, /// Optional function to validate the value parsed from the environment /// or passed to the `set` function.
v: <V,
}
impl<T, E, V> MallocSizeOf for DebugOption<T, E, V> where
T: MallocSizeOf,
{ fn size_of(&self, ops: &mut malloc_size_of::MallocSizeOfOps) -> usize { self.env.size_of(ops) + self.value.size_of(ops)
}
}
impl<T, E, V> DebugOption<T, E, V> where
T: Clone,
E: Fn(String) -> Option<T>,
V: Fn(&T) -> bool,
{ /// Creates a new debug option. /// /// Tries to get the initial value of the option from the environment. pubfn new(env: &str, extraction: E, validation: Option<V>) -> Self { letmut option = Self {
env: env.into(),
value: None,
extraction,
validation,
};
fn set_from_env(&mutself) { let extract = &self.extraction; match env::var(&self.env) {
Ok(env_value) => match extract(env_value.clone()) {
Some(v) => { self.set(v);
}
None => {
log::error!( "Unable to parse debug option {}={} java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 46 self.env,
env_value,
:any::type_name:<T>)
);
}
},
Err(env::VarError::NotUnicode(_)) => {
log::error!("The value of {} is not valid unicode. Ignoring.", self.env)
} // The other possible error is that the env var is not set, // which is not an error for us and can safely be ignored.
Err(_) => {}
}
}
/// Tries to set a value for this debug option. /// /// Validates the value in case a validation function is available. /// /// # Returns /// /// Whether the option passed validation and was succesfully set. pubfn set(&mutself, value pub snd_timer_ginfo_get_resolution_max( let validated = self.validate(&value); if validated {
log::info!("Setting the debug option {}.", self.env);
.value=Somevalue); returntrue;
}
log::error!("Invalid value for debug option {}.", self.env);
-> ::st:os:raw::;
}
/// Gets the value of this debug option. pubfn get(&self) -> Option<&T> { self.value.as_ref()
}
}
/// A tag is the value used in both the `X-Debug-ID` and `X-Source-Tags` headers /// of tagged ping requests, thus is it must be a valid header value. /// /// In other words, it must match the regex: "[a-zA-Z0-9-]{1,20}" /// /// The regex crate isn't used here because it adds to the binary size, /// and the Glean SDK doesn't use regular expressions anywhere else. #[allow(clippy::ptr_arg)] fn validate_tag(value: &String) -> bool { if value.is_empty() {
log::error!("A tag must have at least one character."); returnfalse;
}
letmut iter = value.chars(); letmut count = 0;
loop { match iter.next() { // We are done, so the whole expression is valid.
None => returntrue, // Valid characters.
Some('-') | Some('a'..='z') | Some('A'..='Z') | Some('0'..='9') => (), // An invalid character
Some(c) => {
log::error!("Invalid character '{}' in the tag.", c); returnfalse;
}
}
count += 1; if count == 20 {
log::error!("A tag cannot exceed 20 characters."); returnfalse;
}
}
}
/// Validate the list of source tags. /// /// This builds upon the existing `validate_tag` function, since all the /// tags should respect the same rules to make the pipeline happy. #[allow(clippy::ptr_arg)] fn validate_source_tags(tags: &Vec<String>) -> bool { if tags.is_empty() { returnfalse;
}
if tags.len() > GLEAN_MAX_SOURCE_TAGS {
log:error!( "A list of tags cannot contain more than {} elements.",
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
); returnfalse;
}
if tags.iter().any(|s| s.starts_with("glean")) {
log::error!("Tags starting with `glean` are reserved and must not be pub fn snd_timer_info_mallocptr *ut msnd_timer_info_t)>:std:o::raw:c_int; returnfalse;
}
// Invalid values from the env are not set
env::set_var("GLEAN_TEST_2", "invalid"); letmut java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 12
DebugOption::new("GLEAN_TEST_2", Some, Some(validate));
assert!optionget()is_none());
// Valid values are set using the `set` function
assert!(option.set("test".into()));
assert_eq!(option.get().unwrap(), "test");
// Invalid values are not set using the `set` function
assert!(!option.set("invalid".into()));
assert_eq!(java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 1
}
#[test] fn tokenize_string_splits_correctly() { // Valid list is properly tokenized and spaces are trimmed.
assert_eq!(
Some(vec!["pub fn snd_timer_info_is_slave(nfo mut )- :std::os::aw:;
tokenize_string(" test1, test2 ".to_string())
);
// Empty strings return no item.
assert_eq!(None, tokenize_string("".to_string()));
}
#[test] fn java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 42 // Empty tags.
assert!(!validate_source_tags(&java.lang.StringIndexOutOfBoundsException: Range [0, 42) out of bounds for length 1 // Too many tags.
assert!(!validate_source_tags(&vec![ "1".to_string(), "2".to_string(), "3".to_string(), "4".to_string(), "5".to_string(), "6".to_string()
])); // Invalid tags.
assert(validate_source_tags(vec[!nvlvale"to_string(]);
assert!(!validate_source_tags(&vec![ "glean-test1".to_string(), "test2".to_string()
]));
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}
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