292 lines
8.4 KiB
C++
292 lines
8.4 KiB
C++
#include <string>
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#include <vector>
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#include <stdexcept>
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#include "log.h"
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#include "filters.h"
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Filter::~Filter() {
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}
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IntegerFilter::IntegerFilter(FilterKey key_, size_t other_, bool inverted_, bool disabled)
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: key(key_), other(other_), inverted(inverted_), _disabled(disabled) {
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if (key_ != FilterKey::PID && key_ != FilterKey::TID) {
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throw std::runtime_error("IntegerFilter is passed a non-integer key");
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}
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}
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void IntegerFilter::updated() {
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}
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bool IntegerFilter::disabled() const {
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return this->_disabled;
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}
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void IntegerFilter::disabled(bool disabled) {
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this->_disabled = disabled;
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}
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std::unique_ptr<Filter> IntegerFilter::clone() const {
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return std::make_unique<IntegerFilter>(this->key, this->other, this->inverted, this->_disabled);
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}
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const std::string* IntegerFilter::error() const {
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return nullptr;
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}
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bool IntegerFilter::match(const LogcatEntry& entry) const {
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bool matched;
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switch (this->key) {
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case FilterKey::PID: matched = entry.pid == this->other; break;
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case FilterKey::TID: matched = entry.tid == this->other; break;
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default: throw std::runtime_error("IntegerFilter::match received unhandled key");
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};
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return !this->inverted ? matched : !matched;
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}
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StringFilter::StringFilter(FilterKey key_, std::string other_, bool inverted_, bool exact_match_, bool disabled)
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: key(key_), other(std::move(other_)), inverted(inverted_), exact_match(exact_match_), _disabled(disabled) {
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if (key_ != FilterKey::User && key_ != FilterKey::Tag && key_ != FilterKey::Message) {
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throw std::runtime_error("StringFilter is passed a non-string key");
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}
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this->updated();
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}
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void StringFilter::updated() {
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this->_regex.reset();
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this->_error.clear();
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if (this->other.empty()) {
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this->_error = "String must not be empty";
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return;
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}
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if (!this->other.starts_with("regex:")) {
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return;
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}
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if (this->other.size() == 6) {
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this->_error = "Regex must not be empty";
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return;
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}
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try {
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this->_regex.emplace(&this->other.c_str()[6]);
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} catch (const std::exception& e) {
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this->_error = e.what();
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}
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}
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bool StringFilter::disabled() const {
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return this->_disabled;
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}
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void StringFilter::disabled(bool disabled) {
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this->_disabled = disabled;
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}
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std::unique_ptr<Filter> StringFilter::clone() const {
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return std::make_unique<StringFilter>(this->key, this->other, this->inverted, this->exact_match, this->_disabled);
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}
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const std::string* StringFilter::error() const {
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return !this->_error.empty() ? &this->_error : nullptr;
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}
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bool StringFilter::_match_no_regex(const LogcatEntry& entry) const {
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bool matched;
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if (this->exact_match) {
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switch (this->key) {
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case FilterKey::User: matched = entry.user.value_or("") == this->other; break;
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case FilterKey::Tag: matched = entry.tag == this->other; break;
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case FilterKey::Message: matched = entry.message == this->other; break;
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default: throw std::runtime_error("StringFilter::match received unhandled key");
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}
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} else {
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switch (this->key) {
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case FilterKey::User: matched = entry.user.value_or("").find(this->other) != std::string::npos; break;
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case FilterKey::Tag: matched = entry.tag.find(this->other) != std::string::npos; break;
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case FilterKey::Message: matched = entry.message.find(this->other) != std::string::npos; break;
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default: throw std::runtime_error("StringFilter::match received unhandled key");
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}
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}
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return !this->inverted ? matched : !matched;
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}
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bool StringFilter::match(const LogcatEntry& entry) const {
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bool matched;
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if (this->error()) {
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log(std::string("StringFilter::match called despite there being an error: ") + *this->error());
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return true;
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}
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if (!this->other.starts_with("regex:")) {
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return this->_match_no_regex(entry);
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}
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if (!this->_regex) {
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log("StringFilter::match called with a regex despite there being no regex");
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return true;
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}
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std::string str;
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regmatch_t pmatch[1];
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switch (this->key) {
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case FilterKey::User: str = entry.user.value_or(""); break;
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case FilterKey::Tag: str = entry.tag; break;
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case FilterKey::Message: str = entry.message; break;
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default: throw std::runtime_error("StringFilter::match received unhandled key");
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}
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pmatch[0].rm_so = 0;
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pmatch[0].rm_eo = static_cast<regoff_t>(str.size());
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matched = this->_regex->match(str.data(), 1, pmatch, REG_STARTEND);
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if (this->exact_match) {
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matched = matched && pmatch[0].rm_so == 0 && static_cast<size_t>(pmatch[0].rm_eo) == str.size();
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}
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return !this->inverted ? matched : !matched;
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}
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BufferFilter::BufferFilter(unsigned int wanted_, bool disabled) : wanted(wanted_), _disabled(disabled) {
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}
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void BufferFilter::updated() {
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}
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bool BufferFilter::disabled() const {
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return this->_disabled;
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}
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void BufferFilter::disabled(bool disabled) {
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this->_disabled = disabled;
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}
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std::unique_ptr<Filter> BufferFilter::clone() const {
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return std::make_unique<BufferFilter>(this->wanted, this->_disabled);
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}
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const std::string* BufferFilter::error() const {
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return nullptr;
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}
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bool BufferFilter::match(const LogcatEntry& entry) const {
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return this->wanted & static_cast<unsigned int>(entry.buffer) || this->wanted == 0;
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}
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PriorityFilter::PriorityFilter(unsigned int wanted_, bool disabled) : wanted(wanted_), _disabled(disabled) {
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}
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void PriorityFilter::updated() {
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}
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bool PriorityFilter::disabled() const {
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return this->_disabled;
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}
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void PriorityFilter::disabled(bool disabled) {
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this->_disabled = disabled;
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}
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std::unique_ptr<Filter> PriorityFilter::clone() const {
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return std::make_unique<PriorityFilter>(this->wanted, this->_disabled);
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}
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const std::string* PriorityFilter::error() const {
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return nullptr;
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}
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bool PriorityFilter::match(const LogcatEntry& entry) const {
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return this->wanted & static_cast<unsigned int>(entry.priority) || this->wanted == 0;
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}
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GroupFilter::GroupFilter(std::vector<std::unique_ptr<Filter>> filters_, GroupFilter::Type type_, bool disabled)
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: filters(std::move(filters_)), type(type_), _disabled(disabled) {
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}
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void GroupFilter::updated() {
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}
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bool GroupFilter::disabled() const {
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return this->_disabled;
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}
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void GroupFilter::disabled(bool disabled) {
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this->_disabled = disabled;
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}
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std::unique_ptr<Filter> GroupFilter::clone() const {
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std::vector<std::unique_ptr<Filter>> new_filters;
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new_filters.reserve(this->filters.size());
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for (const std::unique_ptr<Filter>& filter : this->filters) {
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new_filters.push_back(filter->clone());
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}
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return std::make_unique<GroupFilter>(std::move(new_filters), this->type, this->_disabled);
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}
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const std::string* GroupFilter::error() const {
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return nullptr;
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}
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bool GroupFilter::match(const LogcatEntry& entry) const {
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bool had_matched = false;
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for (const std::unique_ptr<Filter>& filter : this->filters) {
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if (filter->disabled() || filter->error()) {
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continue;
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}
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bool matched = filter->match(entry);
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if (this->type == GroupFilter::Type::Any && matched) {
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return true;
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} else if (this->type == GroupFilter::Type::None && matched) {
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return false;
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} else if (this->type == GroupFilter::Type::All && !matched) {
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return false;
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} else if (this->type == GroupFilter::Type::One) {
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if (had_matched && matched) {
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return false;
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}
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if (matched) {
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had_matched = true;
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}
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}
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}
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if (this->type == GroupFilter::Type::Any) {
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return false;
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} else if (this->type == GroupFilter::Type::One && !had_matched) {
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return false;
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}
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return true;
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}
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void copy_filters(Filters& filters, const Filters& other) {
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filters.clear();
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filters.reserve(other.size());
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for (const auto &[title, filter] : other) {
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filters.push_back(std::make_pair(title, filter->clone()));
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}
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}
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bool matches(const Filters& filters, const LogcatEntry& entry) {
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bool ok_filter_exists = false;
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for (const auto &[title, filter] : filters) {
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if (filter->disabled() || filter->error()) {
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continue;
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}
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ok_filter_exists = true;
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if (filter->match(entry)) {
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return true;
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}
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}
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return !ok_filter_exists;
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}
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